Manufacturer Part Number
LD421250
Manufacturer
powerex
Introduction
The LD421250 is an obsolete Thyristor SCR-Diode module used for controlling and rectifying current in high power applications.
Product Features and Performance
Integrated SCR and Diode in series
Able to block voltages up to 1.2 kV
Supports currents up to 500 A (AV) and 785 A (RMS)
Can handle surge currents of up to 17000 A
Operates in temperatures from -40°C to 130°C
Product Advantages
High current and voltage handling capability
Robust thermal performance
Compact POW-R-BLOK™ Module for easy chassis mounting
Key Technical Parameters
Voltage - Off State: 1.2 kV
Current - On State (It(AV)) (Max): 500 A
Current - On State (It(RMS)) (Max): 785 A
Voltage - Gate Trigger (Vgt) (Max): 3 V
Current - Gate Trigger (Igt) (Max): 200 mA
Current - Non Rep. Surge 50, 60Hz (Itsm): 16300A, 17000A
Operating Temperature: -40°C ~ 130°C (TJ)
Quality and Safety Features
Designed to withstand high surge currents and extreme temperatures
Compatibility
Chassis mountable using the POW-R-BLOK™ Module format
Application Areas
Industrial motor drives
High power switching applications
AC/DC converters
Product Lifecycle
This product is now obsolete, and users should seek replacements or upgrades.
Several Key Reasons to Choose This Product
Capacity to control and rectify large currents and voltages in industrial settings
Sustains operational reliability in challenging environmental conditions
POW-R-BLOK™ Module ensures easy installation and robust physical longevity