Manufacturer Part Number
ND421221
Manufacturer
Powerex
Introduction
The ND421221 is a silicon-controlled rectifier (SCR) and diode module designed for high-power control and rectification applications.
Product Features and Performance
Series Connection - SCR/Diode Module
One SCR and One Diode Configuration
Voltage - Off State is rated at 1.2 kV
Capable of On State Current (It (AV)) up to 210 A
RMS On State Current (It (RMS)) can reach up to 330 A
Maximum Gate Trigger Voltage (Vgt) of 3 V
Gate Trigger Current (Igt) maxes at 150 mA
High Surge Capability with Non-Repetitive Surge Current (Itsm) of 11190A @ 60Hz
Designed for operation in temperatures ranging from -40°C to 130°C (TJ)
Product Advantages
High current and voltage handling capabilities
Integrated SCR and diode structure for simplified design
Robust surge current handling for reliability in demanding conditions
Suitable for high temperature operating environments
Sturdy chassis mount design
Key Technical Parameters
Voltage - Off State: 1.2 kV
Current - On State (It (AV)): 210 A
Current - On State (It (RMS)): 330 A
Voltage - Gate Trigger (Vgt): 3 V
Current - Gate Trigger (Igt): 150 mA
Surge Current (Itsm): 11190A @ 60Hz
Operating Temperature Range: -40°C ~ 130°C
Quality and Safety Features
High voltage and current thresholds for safe operation
Reliable performance in extreme temperature conditions
Compatibility
Employed in various power control and rectification circuit configurations
Compatible with chassis mounting
Designed for use with the POW-R-BLOK™ Module system
Application Areas
Industrial power supplies
Motor control systems
Inverters and converters
Heavy-duty power electronics applications
Product Lifecycle
Product Status: Obsolete
Potential need to seek replacements or upgrades due to product obsolescence
Several Key Reasons to Choose This Product
High current and voltage ratings for demanding applications
Integrated diode facilitates circuit simplification
Robust surge handling capability ensures reliability
Capable of operating in a wide temperature range suitable for industrial environments
Established product from Powerex, a reputable manufacturer in power semiconductors
