B484F-2 Crydom - Power Transistor Module

B484F-2 Description

The B484F-2 from Crydom is a solid state relay. It is widely used for heater control, motor switching, lighting and process equipment where mechanical contacts would wear out.

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Summary of Features

Target Applications

Crydom B484F-2 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 B484F-2 is a B48-2 Series diode power module, circuit 4 (three phase half-wave, 3 diodes), 1200 V (480 VAC line), case with isolation barriers. Source: Crydom B48-2T, B48-2 Series datasheet (Rev 121411). Values at 25°C unless noted.

Parameter	Value
Maximum DC output current (Tc = 85°C)	50 A
Repetitive peak reverse voltage (VRRM)	1200 Vpk (480 VAC line)
Circuit	4: three phase half-wave, 3 diodes
Maximum voltage drop (VF)	1.35 V @ 50 A
Maximum non-repetitive surge current (1/2 cycle, 60 Hz)	600 A
Maximum I²t for fusing (8.3 ms)	1500 A²s
Maximum thermal resistance, junction to ceramic base per chip	0.9 °C/W
Operating junction temperature	-40 to 125°C
Isolation voltage	2500 Vrms
Weight (typical)	1.5 oz (42.5 g)

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