EFD01FF Crydom - Power Transistor Module

EFD01FF Description

The EFD01FF from Crydom is an SCR/diode power module. Typical applications include heater control, motor soft start and controlled rectification in industrial equipment.

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Summary of Features

Target Applications

Crydom EFD01FF is used for AC/DC power conversion and control: controlled rectifiers, DC motor drives, heater and power control, battery chargers and power supplies.

Key Specifications

Crydom EFD01FF is an EF Series SCR/diode power module (ceramic base), circuit 1: single phase, common cathode, current code D (50 A), voltage code F (480 VAC line), with free wheel diode. Source: Crydom Series EF power modules datasheet (values per semiconductor cell, 25°C). Values at 25°C unless noted.

Parameter	Value
Current rating (full conduction; AC switch values RMS)	50 A
Voltage	480 VAC line
Circuit	No. 1: single phase, common cathode
Surge current, non-repetitive (one cycle, 60 Hz)	400 A
I²t for fusing (< 8.3 ms)	650 A²s
Forward drop (peak)	1.7 V @ 70 A
Leakage current (IDRM, IRRM)	10.0 mA
Gate trigger current IGT (max)	100 mA
Gate trigger voltage VGT (max)	2.5 V
Peak gate power	5.0 W
Voltage rate of rise dv/dt (exponential, Tc = 125°C)	100 V/µs
Current rate of rise di/dt	100 A/µs
Operating temperature	-40 to 125°C
Thermal resistance, chip to baseplate	0.5 °C/W
Thermal resistance, base to heatsink (with compound)	0.3 °C/W

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