Technical Abbreviations
Here's a handy list of the most common technical abbreviations, acronyms and initialisms used within our industry.
A
A/D – Analog to Digital
AALC – Air Assisted Liquid Cooling
AAS – Advanced or Active Antenna System
AAU – Active Antenna Unit
AC – Alternating Current
AC/DC – Alternating Current to Direct Current (converter / power supply)
ACK – Acknowledgement
ACP – Average CPU Power
ACS – Active Current Sharing or American Chemical Society
ADC – Analog to Digital Converter
ADM – Add/Drop Multiplexer
ADSL – Asymmetrical Digital Subscriber Line
AFU – Antenna Filter Unit
AGC – Automatic Gain Control
AGI – Artificial General Intelligence
AGV – Automated Guided Vehicle
AI – Artificial Intelligence
AISG – Antenna Interface Standards Group
AMC – Advanced Mezzanine Card
AMH – Automated Material Handling
AMP – Architects of Modern Power or Amplifier
AMR – Autonomous Mobile Robot
ANSI – American National Standards Institute
AOI – Automated Optical Inspection
AON – Active Optical Network
AP – Access Point
API – Application Programming Interface
APM – Advanced Power Management
APQT – Advanced Product Quality Planning
APT – Average Power Tracking
APU – Accelerated Processing Unit
AR – Augmented Reality
AS – Access Server
ART – Adaptive Ramp Time
ASCR – A Single Cycle Response (digital compensator)
ASIC – Application Specific Integrated Circuit
ASIL – Automotive Safety Integrity Level
ASM – Advanced Sleep Mode
ASRS – Automated Storage and Retrieval Systems
ASSP – Application Specific Standard Product
ATCA – Advanced Telecommunications Computing Architecture
ATE – Automated Test Equipment
ATM – Asynchronous Transfer Mode
AVA – Analog Voltage Adjust
AVL – Approved Vendor List
AVS – Adaptive Voltage Scaling
AVSBus – Adaptive Voltage Scaling Bus
AWG – American Wire Gauge
AWS – Amazon Web Services
B
BBU – Baseband Unit or Battery Backup Unit
BCM – Business Continuity Management
BCP – Business Continuity Plan
BEM – Boundary Element Method
BER – Bit Error Rate
BFN – Beam Forming Network
BGA – Ball Grid Array / solder Bump Grid Array
BJT – Bipolar Junction Transistor
BMC – Baseboard Management Controller
BMP – Board Mounted Power
BMPS – Board Mounted Power Supply
BMR – Board Mounted Regulator
BMS – Battery Management System or Building Management System
BoM – Bill of Materials
BSC – Base Station Controller
BSI – British Standards Institute
BSS – Base Station System
BTS – Base Transceiver Station
BW – Bandwidth
C
CA – Controller Assembly
CAD – Computer Aided Design
CAGR – Compound Annual Growth Rate
CAN – Controller Area Network (bus)
CAN FD – Controller Area Network Flexible Data-rate
CAS – Chemical Abstracts Service (number)
CAVs – Connected and Autonomous Vehicles
CB – Certification Body
CBC – Cycle By Cycle (protection)
CC – Constant Current
CCM – Continuous Conduction Mode
CDM – Coolant Distribution Manifold
CDMA – Code Division Multiple Access
CDN – Content Delivery Network
CDR – Critical Design Review
CDU – Coolant Distribution Unit
CE – Conformité Européenne (European Conformity) or Customer Edge
CEN – Comité Européen de Normalisation (European Committee for Standardization)
CENELEC – Comité Européen de Normalisation Électrotechnique (European Committee for Electrotechnical Standardization)
CEM – Contract Electronics Manufacturer
CFD – Computational Fluid Dynamics
CFM – Cubic Feet per Minute (airflow)
CFP – Common FootPrint
CM – Common Mode (noise/choke)
CMOS – Complementary Metal Oxide Semiconductor
CMRR – Common Mode Rejection Ratio
CMRT – Conflict Minerals Reporting Template
CMTI – Common Mode Transient Immunity
CNN – Convolutional Neural Network
CoC – Certificate of Conformance
CoO – Country of Origin
COS – Continuity of Supply
COT – Constant On Time
COTS – Commercial Off The Shelf
CPA – Centralized Power Architecture
CPE – Customer Premises Equipment
CPO – Co-Packaged Optics
CPU – Central Processing Unit
CQC – China Quality Certification
CRAC – Computer Room Air Conditioning
CRAH – Computer Room Air Handling
C-RAN – Centralized Radio Access Network or Cloud Radio Access Network
CSA – Canadian Standards Association
CSP – Communication Service Provider
CSV – Comma Separated Values
CTBP – Control, Transport, Baseband & Power
CTI – Comparative Tracking Index
CTW – Cooling Tower Water
CU – Centralized Unit
CV – Constant Voltage
CWDM – Coarse Wavelength Division Multiplexing
CXL – Compute eXpress Link
D
D2C – Direct to Chip (liquid cooling)
D-AMPS – Digital Advanced Mobile Phone System
D/A – Digital to Analog
DAC – Digital to Analog Converter
DAP – Delivered At Place
DAS – Distributed Antenna System or Direct Attached Storage
DBF – Digital Beam Forming
DBV – Dynamic Bus Voltage
DC – Direct Current
DC/AC – Direct Current to Alternating Current (inverter)
DC/DC – Direct Current to Direct Current (converter)
DCIM – Data Center Infrastructure Management
DCL – Decision Logic or Data Control Language
DCM – Discontinuous Conduction Mode
DCR – Direct Current Resistance (measurement)
DCS – Distributed Control System
DCX – DC Transformer
DDP – Delivered Duty Paid
DDR – Double Data Rate (memory)
DEM – Diode Emulation Mode
DFC – Direct Frequency Control
DFE – Design For the Environment
DFM – Design For Manufacturability
DFR – Design For Reliability
DFT – Design for Testability
DiCon – Direct Conversion
DIL – Dual InLine (package)
DIMM – Dual Inline Memory Module
DIN – Deutsches Institut für Normung (German Institute for Standardisation)
DIP – Dual Inline Package
DL – Deep Learning
DLC – Dynamic Load Compensation or Direct Liquid Cooling
DLS – Droop Load Sharing
DMUX – Demultiplexer
DOSA – Distributed-power Open Standards Alliance
DOW – Date Of Withdrawal
DPA – Distributed Power Architecture
DPC – DIMMs Per Channel
DPD – Digital Pre-Distortion
DPM – Digital Power Management or Dynamic Power Management
DPoL – Digital Point of Load (converter)
DPWM – Digital Pulse Width Modulation or Discontinuous Pulse Width Modulation
DPU – Data Processing Unit
DRAM – Dynamic Random Access Memory
DrMOS – Driver & MOSFET module
DRP – Disaster Recovery Plan
DSL – Digital Subscriber Line
DSLAM – Digital Subscriber Line Access Multiplexer
DSP – Digital Signal Processor
DTC – Direct to Chip (liquid cooling)
DTI – Distance Through Insulation
DTC – Direct Torque Control
DU – Distributed Unit
DUT – Device Under Test
DVFS – Dynamic Voltage & Frequency Scaling
DVS – Dynamic Voltage Scaling
DVT – Design Validation/Verification Testing
DWDM – Dense Wavelength Division Multiplexing
E
E-mMIMO – Extreme-massive MIMO
E2E – End to End
EAR – Export Administration Regulations
EB – Eighth Brick
EBITDA – Earnings Before Interest, Taxes, Depreciation and Amortization
EC – Engineering Change or Edge Computing
ECA – Electronic Components Association
ECHA – European CHemicals Agency
ECIA – Electronic Components Inustry Association
ECN – Export Control Notice
ECCN – Export Control Classification Number
ECS – Environmental Control System
EDA – Electronic Design Automation
EDC – Electrical Design Current
EDGE – Enhanced Data for Global Evolution
EDI – Electronic Data Interchange
EDP – Electrical Design Power or Excursion Design Power or Electronic Data Processing
EDR – Event Data Recorder ("black box")
EER – Envelope Elimination and Restoration
EFT – Electrical Fast Transient
EIA – Electronic Industries Association
ELFR – Early Life Failure Rate
ELV – Extra Low Voltage
EMAC – Ethernet Media Access Control (address)
eMBB – Enhanced Mobile BroadBand
EMC – Electromagnetic Compatibility
EMF – Electromotive Force or Field
EMI – Electromagnetic Interference
EMR – Electromagnetic Radiation
EMRT – Extended Minerals Reporting Template
EMS – Electronic Manufacturing Services
EN – Norme Européen (European Standard) or Engineering Note
eNB – Evolved NodeB
ENIG – Electroless Nickel Immersion Gold
EOL – End Of Life
EPC – Evolved Packet Core
EPG – Evolved Packet Gateway
EPO – Emergency Power Off
EPON – Ethernet Passive Optical Network
EPROM – Erasable Programmable Read Only Memory
EPU – Energy Processing Unit
ERF – Energy Reuse Factor
ERI – Early Return Index
ERP – Enterprise Resource Planning
ERTMS – European Rail Traffic Management System
ESD – Electrostatic Discharge
ESG – Environmental, Social and Governance
ESL – Equivalent Series Inductance
ESR – Equivalent Series Resistance
ESS – Environmental Stress Screening
ET – Envelope Tracking
ETA – Estimated Time of Arrival
ETCS – European Train Control System
ETD – Estimated Time of Departure
EUT – Equipment Under Test
EV – Electric Vehicle
EVDO – Evolution Data Optimized
EVT – Engineering Validation/Verification Testing
EXW – Ex Works
F
FAE – Field Application Engineer
FAI – First Article Inspection
FAQ – Frequently Asked Questions
FAR – Failure Analysis Report
FCA – Free Carrier
FCC – Federal Communications Commission or Forced Continuous Conduction
FCCM – Forced Continuous Conduction Mode
FDD – Frequency Division Duplex
FDMA – Frequency Division Multiple Access
FEA – Finite Element Analysis
FEM – Finite Element Method or Front End Module
FET – Field Effect Transistor
FFT – Fast Fourier Transform
FHA – Fundamental Harmonic Analysis
FIT – Failures In Time
FIQ – Fast Interrupt reQuest
FMD – Full Material Declaration
FMEA – Failure Mode Effect Analysis
FMPS – Fault Managed Power System
FOB – Free On Board
FOD – Foreign Object Debris/Damage
FPD – Flex Power Designer
FPGA – Field Programmable Gate Array
FPM – Flex Power Modules
FRA – Fixed Radio Access
FRMCS – Future Railway Mobile Communication Systems
FRU – Field Replaceable Unit
FSC – Fan Speed Control
FTTx – Fiber To The "x" (Premise/Home/Building/Cabinet/Node etc.)
FWA – Fixed Wireless Access
FWS – Facility Water System
G
GaAs – Gallium Arsenide
GAM – Global Account Manager
GaN – Gallium Nitride
GCB – Group Communication Bus
GCM – Global Commodity Management
GCP – Google Cloud Platform
GDT – Gas Discharge Tube
GigE – Gigabit Ethernet
GMSL – Gigabit Multimedia Serial Link
gNB – Next Generation NodeB
GND – Ground
GNN – Graph Neural Network
GP-GPU – General Purpose Graphic Processing Unit
GPA – General Purpose Agreement
GPIB – General Purpose Interface Bus
GPIO – General Purpose Input/Output
GPON – Gigabit Passive Optical Network
GPP – General Purpose Processor
GPRS – General Packet Radio Service
GPS – Global Positioning System
GPT – Generative Pretrained Transformer model
GPU – Graphic Processing Unit
GSA – Global mobile Suppliers Association
GSM – Global System for Mobile Communications
GSM-R – Global System for Mobile Communications – Railway
GSMA – GSM Association
GUI – Graphical User Interface
GWP – Global Warming Potential
H
HALT – Highly Accelerated Life Testing
HASL – Hot Air Solder Level
HASS – Highly Accelerated Stress Screening
HAST – Highly Accelerated Stress Testing
HB – Half Brick
HBM – High Bandwidth Memory
HCI – HyperConverged Infrastructure
HDR – High Data Rate
HEMT – High Electron Mobility Transistors
HEV – Hybrid Electric Vehicle
HMI – Human Machine Interface
HOD – High Ohmic Distribution
HPC – High Performance Computing
HPDC – High Performance Data Center
HRR – Hybrid Regulated Ratio
HS – Harmonized System
HSC – Hybrid Switched Capacitor (topology)
HSDPA – High Speed Downlink Packet Access
HSPA – High-Speed Packet Access
HTOL – High Temperature Operating Life
HTS – Harmonized Tariff Schedule
HTSL – High Temperature Storage Life
HTTP – Hypertext Transfer Protocol
HV – High Voltage
HVAC – Heating, Ventilation and Air Conditioning
HVDC – High Voltage Direct Current (converter)
HW – Hardware
I
I/O – Input/Output
I2C – Inter-Integrated circuit Communication (bus)
I3C – Improved Inter-Integrated circuit Communication (bus)
IA – Intelligent Automation
IBA – Intermediate Bus Architecture
iBBU – Intelligent Baseband Unit
IBC – Intermediate Bus Converter
IBV – Intermediate Bus Voltage
IC – Integrated Circuit
ICT – Information and Communications Technology
IDC – Internet Data Center
IDM – Integrated Device Manufacturer
IEC – International Electrotechnical Commission
IEE – Institution of Electrical Engineers
IEEE – Institute of Electrical and Electronic Engineers
ICS – Industrial Control Systems
ICT – Information and Communication Technology
IDU – Indoor Unit
IGBT – Insulated Gate Bipolar Transistor
IHV – Independent Hardware Vendor
IoE – Internet of Everything
IoT – Internet of Things
IIoT – Industrial Internet of Things (Industry 4.0)
IMDS – International Material Data System
IMS – Insulated Metal Substrate or IP Multimedia Subsystem
IMT – International Mobile Telecommunication
IOR – Input-Output Ratio
IP – Internet Protocol or Intellectual Property or International Protection
IPMI – Intelligent Platform Management Interface
IPS – Integrated Power Stage or Systems
IPU – Image or Intelligence or Infrastructure Processing Unit
IR – Infrared (Reflow)
IRQ – Interrupt ReQuest
IRR – Initial Return Rate
ISO – International Organization for Standardization
ISP – Infrastructure Service Provider or Internet Service Provider
ISV – Independent Software Vendor
ITAR – International Traffic in Arms Regulations
ITU – International Telecommunication Network
IUCLID – International Uniform ChemicaL Information Database
J
JDM – Joint Design Manufacturer
JEDEC – Joint Electronic Device Engineering Council
JFET – Junction Field Effect Transistor
JIT – Just In Time
JTAG – Joint Test Action Group
K
KAM – Key Account Manager
L
L4S – Low Latency, Low Loss, Scalable Throughput
LAN – Local Area Network
LCC – Inductor-Capacitor-Capacitor (resonant converter)
LDMOS – Laterally Diffused Metal Oxide Semiconductor
LDO – Low Dropout (voltage regulator)
LFM – Linear Feet per Minute (airflow)
LGA – Land Grid Array
LGV – Laser Guided Vehicle
LISN – Line Impedance Stabilization Network
LLC – Inductor-Inductor-Capacitor (resonant converter)
LLM – Large Language Model
LNA – Low Noise Amplifier
LOD – Low Ohmic Distribution
LPF – Low Pass Filter
LPWA – Low Power Wide Area
LSB – Least Significant Bit
LT – Lead Time
LTB – Last Time Buy
LTE – Long Term Evolution
LTE-A – LTE Advanced
LTE-M – LTE Machine (type communication)
LTRR – Long Term Return Rate
LTS – Last Time Ship
LVD – Low Voltage Directive
M
M2M – Machine to Machine
MAC – Media Access Control (address)
MBA – Multi Beam Antenna
MBB – Mobile Broadband
MBPA – Multi Beam Phased Array
MCM – Multi-Chip Module
MCU – Microcontroller Unit
MDF – Main Distribution Frame
MEC – Mobile Edge Computing
MEMS – Micro Electro-Mechanical Systems
MIMO – Multiple Input Multiple Output
ML – Machine Learning
MLB – Multi Layer Board
MLCC – Multi Layer Ceramic Capacitor
MMA – Modified Moving Average
mMIMO – Massive Multiple Input Multiple Output
mMTC – Massive Machine Type Communication
mmW – Millimeter Wave
MNO – Mobile Network Operator
MOCN – Multi Operator Core Network
MOOP – Means Of Operator Protection
MOP – Means of Protection
MOPP – Means of Patient Protection
MOQ – Minimum Order Quantity
MOSFET – Metal Oxide Semiconductor Field Effect Transistor
MORAN – Multi Operator Radio Access Network
MOV – Metal Oxide Varistor
MP – Mass Production
MPC – Maximum Power Consumption
MPN – Manufacturing Part Number
MPQ – Minimum Package Quantity
MPU – Micro Processor Unit
MR – Mixed Reality
MRL – Manufacturing Readiness Level
MRP – Materials Requirement Planning
MRR – Manufacturing Readiness Review
MRT – Multi Resonant Topology
MSB – Most Significant Bit
MSC – Mobile Switching Center
MSDS – Material Safety Data Sheet
MSL – Moisture Sensitivity Level
MTA – Multi Tapped Autotransformer
MTBF – Mean Time Between Failures
MTTF – Mean Time To Failure
MTTR – Mean Time To Repair
MU-MIMO – Multi User MIMO
MUX – Multiplexer
MVNO – Mobile Virtual Network Operator
N
NACK – Negative Acknowledgement
NAFTA – North American Free Trade Agreement
NAS – Network Attached Storage
NAT – Network Address Translation
NB-IoT – Narrow Band Internet of Things
NCNR – Non-Cancellable Non-Returnable
NDA – Non-Disclosure Agreement
NEBS – Network Equipment Building System
NEDA – National Electronic Distributors Association
NEMA – National Electronic Manufacturers Association
NFF – No Fault Found
NFV – Network Function Virtualization
NGMN – Next Generation Mobile Networks (alliance)
NIC – Network Interface Card
NLP – Natural Language Processing
NLR – Non-Linear Response
NLU – Natural Language Understanding
NPI – New Product Introduction
NPR – New Product Requirement
NPU – Neural Processing Unit or Network Processing Unit
NR – New Radio (5G) or Notch Resonance
NRE – Non-Recurring Engineering (charge)
NTC – Negative Temperature Coefficient
NVM – Non-Volatile Memory
NRND – Not Recommended for New Designs
NSA 5G – Non Stand Alone 5G
O
OADM – Optical Add/Drop Multiplexer
OAI – Open Accelerator Infrastructure
OAM – OCP Accelerator Module
OBC – On Board Charger
OCP – Over Current Protection or Open Compute Project
OCS – Optical Circuit Switch
OCV – Open Circuit Voltage
ODM – Original Design Manufacturer
ODSC – Outdoor Small Cell
ODU – Outdoor Unit or Open Distributed Unit
OEM – Original Equipment Manufacturer
OES – Open Enterprise Server
OFDM – Orthogonal Frequency Division Multiplexing
OLT – Optical Line Termination
ONT – Optical Network Terminal
ORT – Ongoing Reliability Testing
ORU – Open Radio Unit
O-RAN – Open Radio Access Network (Alliance)
OT – Operational Technology
OTFS – Orthogonal Time Frequency & Space
OTP – Over Temperature Protection or One Time Programming
OTT – Over The Top (streaming)
OVP – Over Voltage Protection
OXC – Optical cross-connect
P
PA – Power Amplifier
PAA – Phased Array Antenna
PAE – Power Added Efficiency
PAM – Power Amplifier Module
PAPR – Peak to Average Power Ratio
PBT – Persistent, Bioaccumulative, and Toxic (chemicals)
PBX – Private Branch Exchange
PCB – Printed Circuit Board
PCBA – Printed Circuit Board Assembly
PCI – Peripheral Component Interface
PCIe – Peripheral Component Interface Express
PCN – Product Change Notification
PD – Powered Device
PDCP – Packet Data Convergence Protocol
PDE – Partial Differential Equation
PDM – Pulse-Density Modulation
PDN – Product Discontinuation Notice or Power Distribution Network or Power Delivery Network or Packet Data Network
PDU – Power Distribution Unit
PE – Polyethylene
PEC – Packet Error Checking
PER – Packet Error Rate
PF – Power Factor
PFC – Power Factor Correction
PG – Power Good
PHY – Physical Layer
PID – Proportional Integral Derivative or Packet Identifier
PIM – Power Interface Module or Passive InterModulation
PIP – Pin-In-Paste (for reflow soldering through hole parts)
PIS – Product Information System
PLC – Programmable Logic Controller or Product Life Cycle or Power Line Communications
PLCM – Product Life Cycle Management
PLL – Phase Locked Loop
PMBus™ – Power Management Bus
PMIC – Power Management Integrated Circuit
PMU – Power Management Unit
PN – Product Notification
PO – Purchase Order
PoE – Power Over Ethernet
POEP – Power Over Ethernet Plus (PoE+)
POFV – Plated Over Filled Via
PoL – Point of Load (converter)
POLA – Point Of Load Alliance
PON – Passive Optical Network
PoP – Point of Presence
POTS – Plain Old Telephone Service
PPAP – Production Part Approval Process
PPE – Polyphenylene Ether
PPM – Parts Per Million
PPPoE – Point-to-Point Protocol over Ethernet
PR – Parallel Resonance
PRC – Parallel Resonant Converter
PRD – Product Requirement Document
PROM – Programmable Read Only Memory
PRR – Production Readiness Review
PSA – Power Stamp Alliance
PSE – Power Sourcing Equipment
PSFB – Phase-Shifted Full-Bridge
PSL – Preferred Suppliers List
PSMP – Power Surface Multiplier Package
PSRR – Power Supply Rejection Ratio
PSU – Power Supply Unit
PT – Potential Transformer
PTC – Positive Temperature Coefficient or Powered Temperature Cycling
PTH – Plated Through Hole
PTP – Point To Point or Power, Thermal & Performance (sensors)
PTMP – Point To Multi Point
PUE – Power Usage Effectiveness
PV – Photovoltaic (inverter)
PVT – Production Validation/Verification Testing
PWB – Printed Wiring Board
PWBA – Printed Wiring Board Assembly
PWM – Pulse Width Modulation
Q
QAM – Quadrature Amplitude Modulation
QB – Quarter Brick
QDR – Quad Data Rate
QFN – Quad Flat No-lead
QML – Qualified Manufacturers List
QMS – Quality Management System
QN – Quality Notification
QoS – Quality of Service
R
RAID – Redundant Array of Independent Disks
RAM – Random Access Memory
RAN – Radio Access Network
RBS – Radio Base Station
RC – Remote Control (on/off)
RCI – Rack Cooling Index
REACH – Registration, Evaluation, Authorization and restriction of CHemicals
REF – Renewable Energy Factor
RET – Remote Electronic Tilt
RF – Radio Frequency
RFI – Radio Frequency Interference or Request For Information
RFP – Request For Proposal
RFPA – Radio Frequency Power Amplifier
RFQ – Request For Quotation
RGW – Radio Gateway
RH – Relative Humidity
RIC – RAN Intelligent Controller
RLC – Radio Link Control
RMA – Returned Material Authorization
RMS – Root Mean Square
RNC – Radio Network Controller
ROADM – Reconfigurable Optical Add/Drop Multiplexer
RoHS – Restriction of Hazardous Substances
ROM – Read Only Memory or Rough Order of Magnitude
RPA – Robotic Process Automation
RPM – Revolutions Per Minute
RPO – Recovery Point Objective
RRC – Radio Resource Control
RRH – Remote Radio Head
RRU – Remote Radio Unit
RS – Recommended Standard (e.g. RS232, RS485 etc.)
RSM – Regional Sales Manager
RTO – Recovery Time Objective
RTU – Remote Terminal Unit
RU – Radio Unit or Rack Unit
RX – Receive
S
S2S – Service to Service
SA – Serial Address or Standalone
SALERT – SMBus Alert
SAN – Storage Area Network
SB – Sixteenth Brick
SBC – Single Board Computer
SCADA – Supervisory Control And Data Acquisition
SCAR – Supplier Corrective Action Request
SCC – Switched Capacitance Converter or Short Circuit Current
SCIP – Substances of Concern In articles as such or in complex objects (Products)
SCL – Serial Clock Line
SCP – Short Circuit Protection
SCR – Silicon Controlled Rectifier
SCSI – Small Computer System Interface
SDA – Serial Data line
SDDC – Software Defined Data Center
SDH – Synchronous Digital Hierarchy
SDN – Software Defined Networking
SDR – Single Data Rate
SELV – Safety Extra Low Voltage
SFOC – Sensorless Field Oriented Control
SHSC – Symmetrical Hybrid Switched Capacitor
SI – Système International
SiC – Silicon Carbide
SIM – Subscriber Identity Module
SIP – Single Inline Package or System In Package or Session Initiation Protocol
SKU – Stock Keeping Unit
SLA – Service Level Agreement
SMA – Surface Mount Assembly
SMBus – System Management Bus
SMD – Surface Mount Device
SME – Small and Medium Enterprise
SMP – Surface Mount Package
SMPS – Switched Mode Power Supply
SMT – Surface Mount Technology
SNR – Signal-to-Noise Ratio
SOA – Safe Operating Area
SoC – System on Chip or Statement of Compliance
SOIC – Small Outline Integrated Circuit
SON – Self Organizing Network
SONET – Synchronous Optical Networking
SPA – Specific Purchase Agreement
SPI – Serial Peripheral Interface
SPQ – Standard Package Quantity
SPS – Standby Power Supply
SQL – Structured Query Language
SR – Series Resonance
SRAM – Static Random Access Memory
SRC – Series Resonant Converter
SRF – Series Resonant Frequency
SSD – Solid State Drive
STC – Switched Tank Capacitor
STEP – Standard for the Exchange of Product model data
SVHC – Substances of Very High Concern
SVID – Serial Voltage Identifier
SW – Software
SWaP-C – Size, Weight, Power and Cost
SWG – Standard Wire Gauge
T
T&R – Tape and Reel
TC – Temperature Cycling
TCE – Thermal Coefficient of Expansion
TCO – Total Cost of Ownership
TCP – Transport Control Protocol
TCS – Technology Cooling System
TD-SCDMA – Time Division-Synchronous Code Division Multiple Access
TDC – Thermal Design Current
TDD – Time Division Duplex
TDM – Time Division Multiplex
TDMA – Time Division Multiple Access
TDP – Thermal Design Power
TFR – Test For Reliability
TH – Through Hole
THB – Temperature Humidity Bias
THD – Total Harmonic Distortion
THT – Through Hole Technology
TIA – Telecommunications Industries Association
TIM – Thermal Interface Material
TIP – Telecom Infra Project
TLVR – Trans-Inductor Voltage Regulator
TMA – Tower Mounted Amplifier
TOBA – Telecom On-Board Architecture
TOR – Top Of Rack
TPP – Total Processor Performance
TPU – Tensor Processing Unit
TR – Technical Report
TRL – Technology Readiness Level
TRU – Transmitter Receiver Unit
TSCA – Toxic Substances Control Act
TSN – Time Sensitive Networking
TTL – Transistor Transistor Logic
TUV – Technischer Uberwachungs Verein
TVS – Transient Voltage Suppressor
TVSS – Transient volt surge suppression
TX – Transmit
U
UART – Universal Asynchronous Receiver/Transmitter
UBB – Universal BaseBoard
UCP – Under Current Protection
UI – User Interface
UL – Underwriters Laboratories
UMTS – Universal Mobile Telecommunications System
UPOE – Universal Power Over Ethernet (PoE++)
UPS – Uninterruptable Power Supply
uRLLC – Ultra Reliable Low Latency Communication
USB – Universal Serial Bus
UUT – Unit Under Test
UVLO – Under Voltage Lock Out
UVP – Under Voltage Protection
UX – User eXperience
V
VA – Virtual Assistant
vBBU – Virtual Baseband Unit
VCO – Voltage Controlled Oscillator
VCU – Video Coding Unit
VDC – Virtual Data Center or Volt Direct Current
VDE – Verband Deutscher Elektrotechniker
VDI – Virtual Desktop Infrastructure
VID – Voltage Identifier
VIPPO – Via in Pad Plated Over
VFD – Variable Frequency Drive
VFF – Voltage Feed Forward
VGA – Variable Gain Amplifier
VLAN – Virtual Local Area Network
VM – Virtual Machine
VNF – Virtual Network Function
VoC – Verification of Conformity
VoIP – Voice over IP (Internet Protocol)
VoLTE – Voice over LTE
VoNR – Voice over New Radio
VPD – Vertical Power Delivery
VPN – Virtual Private Network
VPU – Vision Processing Unit
VPWR – Vertical Power
VQFN – Very thin Quad Flat No-lead
VR – Virtual Reality
V-RAN – Virtualized Radio Access Network
VRM – Voltage Regulator Module
VSD – Variable Speed Drive
W
WAN – Wide Area Network
WAP – Wireless Access Protocol
WBG – Wide Band Gap (semiconductor)
WCDMA – Wideband Code Division Multiple Access
WFD – Waste Framework Directive
WFE – Wafer Fabrication Equipment
WEEE – Waste Electrical and Electronic Equipment (directive)
WiMAX – Worldwide interoperability for Microwave Access
WIP – Work In Progress
WISP – Wireless Internet Service Provider
WLAN – Wireless Local Area Network
WUE – Water Usage Effectiveness
X
xDSL – arbitrary Digital Subscriber Line (e.g. ADSL)
XML – EXtensible Markup Language
XPE – AMD-Xilinx Power Estimator
xPU – An all encompassing term for a portfolio of Processing Units (including CPU, GPU, IPU, TPU, VPU, FPGA and other accelerators)
XR – Extended Reality
Y
YRR – One Year Return Rate
Z
ZCS – Zero Current Switching
ZEV – Zero Emission Vehicle
ZIF – Zero Insertion Force
ZSC – Zero-voltage Switched Capacitor
ZVS – Zero Voltage Switching
Other
1PIC – Single Phase Immersion Cooling
2G – Second Generation (GSM/D-AMPS/GPRS/EDGE)
2PIC – Two Phase Immersion Cooling
3D – 3 Dimensional
3E – Enhanced performance, Energy management, End-user value
3G – Third Generation (UMTS/CDMA2000/HSPA/HSPA+/EVDO)
3GPP – Third Generation Partnership Project
4G – Fourth Generation (LTE/LTE-A/LTE-Pro)
4PPOE – 4-Pair Power Over Ethernet
5G – Fifth Generation (NR)
8D – 8 Discipline (report)
µC – Microcontroller
µTCA - Micro Telecommunications Computing Architecture