Part Derating Parameters Capacitors Fixed Aluminum (Electrolytic) Fixed Ceramic Fixed Mica/Glass Fixed Paper/Plastic Fixed Tantalum (Non- Solid) Reverse Voltage Fixed Tantalum (Solid) Reverse Voltage Variable Air Circuit Breakers Current (% max rated) Connectors (All Types) Voltage (% of Dielectric Withstand Voltage) Current (% max rated) 85% Crystals SAW Insert Temperature Limit ( C) Input Power from max (>500 MHz) Input Power from max (<500 MHz) 13 dbm 18 dbm 90 C 10 dbm 13 dbm 90 C Diodes Forward Current (I F ) (Signal/Switching) Reverse Voltage (V R ) Microwave (Schottky/PIN) Reverse Voltage (V R ) Power Rectifier Forward Current (I F ) Reverse Current (V R ) 1
Thyristor On-State Current (I T ) Off-State Voltage (V R ) Transient Voltage Suppressor Average Current (I O ) Voltage Regulator/ Reference Electric Motors Fans Filters Capacitor Inductors Fuzes Bearing Load (% max rated) Bearing Load (% max rated) Current DC (% max rated) Normal Response Current (% max rated) Time Delay Current (% max rated) 85% Hybrids Thick Film Resistor Thin Film Resistor Chip Resistor Chip Capacitors Diode Forward Current (I F ) Reverse Voltage (V R ) Microwave Diode Reverse Voltage (V R ) Bipolar Transistor Voltage (V CE ) Field Effect Transistor Breakdown Voltage Hybrid Package Lamps Incandescent 94% 94% <175 C <175 C Neon Current (% max rated) 98% 98% <150 C <150 C 2
Magnetics Transformer (Audio) Transformer (Power) Transformer (Pulse) Coil (RF) MEMS (Micro-Electro- Mechanical Systems) Microcircuits Silicon Digital (MOS & Bipolar) Silicon Linear (MOS & Bipolar) Hot Spot Hot Spot Hot Spot Current (DC) (% max rated) Hot Spot Driving Frequency to Resonate Frequency Ratio Relative Humidity Fanout Frequency (% max rated) Output Current Output Current 2.0 40% - 2.0 40% - GaAs Digital GaAs Linear RF Input Power SiGe Digital SiGe Linear Optoelectronics Injection Laser Diode Power Output (% max rated) Light Emitting Diode Photo Diode Photo Transistor Fiber Cable Bend Radius % min. Rating Cable Tension % Rated Strength Fiber Tension % Proof Test 200% 20% 200% 20% 3
Relays Contact Current (Continuous % max rated) Contact Power (% max rated) Resistors Fixed Composition Fixed Film Fixed Wirewound Variable Non- Wirewound Variable Wirewound Switches Thermistors Transistors Bipolar Junction Field Effect Transistor (Silicon) Field Effect Transistor (GaAs) Hetro Junction Bipolar Transistor (GaAs) High Mobility Transistor (GaAs) Contact Current (Continuous % max rated) Contact Power (% max rated) Contract Current (Surge) Power Dissipation (PD) Breakdown Voltage (V CE ) Breakdown Voltage (V BR ) Resistive Load Capacitive Load 40% Inductive Load 20% Motor 10% Filament (Lamp) T max - 30 C T max - 40 C T max - 52 C T max - 32 C Resistive Load Capacitive Load 40% Inductive Load 20% Motor 10% Filament (Lamp) Resistive Load Capacitive Load Inductive Load 30% Motor 20% Filament (Lamp) T max - 18 C T max - 24 C T max - 6 C T max - 31 C T max - 19 C Resistive Load Capacitive Load Inductive Load 30% Motor 20% Filament (Lamp) 4
Tubes Cathode Ray Power Output (% max rated) Microwave Power Output (% max rated) Reflection Power (% max rated) Duty Cycle Copyright 2001 IIT Research Institute. All rights reserved. Privacy Policy Source: RAC document D-RATE, Electronic Derating for Optimum Performance. 5