L412F Crydom - Power Transistor Module

L412F Description

Crydom L412F is a solid state relay rated at 240 V and 20 A. It is widely used for heater control, motor switching, lighting and process equipment where mechanical contacts would wear out.

We help engineers and repair technicians find parts like the L412F, including obsolete ones. Send a quick RFQ for current pricing and delivery. Before ordering, please confirm ratings and pin-out with the official datasheet.

Summary of Features

Target Applications

Crydom L412F 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 L412F is a Series L SCR/diode power module (ceramic base), L4 (20 A), circuit 1, 240 VAC line (600 PIV), with free wheeling diode. Source: Crydom Series L power modules datasheet (scanned). Values at 25°C unless noted.

Parameter	Value
Maximum DC output current (Tc = 85°C, ceramic full bridge)	20 A
Maximum output current (Tc = 85°C, circuit 5)	22 Arms
AC line input voltage	240 VAC (600 PIV)
Circuit	1 (see datasheet diagram)
Maximum SCR voltage drop	2.2 V @ 20 A
Maximum holding current	100 mA
Critical rate of rise of on-state current (Tj = 125°C)	100 A/µs
Critical rate of rise of off-state voltage (Tj = 125°C)	200 V/µs
Maximum non-repetitive surge current	250 A
Maximum I²t for fusing (8.3 ms)	260 A²s
Maximum required gate current / voltage to trigger (25°C)	100 mA / 2.5 V
Maximum peak gate current	3.0 A
Maximum thermal resistance to sink	0.1 °C/W
Typical thermal resistance junction to ceramic base per device	0.5 °C/W
Operating junction temperature	-25 to 125°C

Technical document (PDF)  |  Request a quote for L412F (reply within 24 hours)