ChipApex | Global Electronic Components Supplier
LD430850
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：SCR MOD ISO DUAL 800V 500A
- Series：-
- Mfr：Powerex Inc.
- Package：Bulk
- Structure：Series Connection - All SCRs
- Number of SCRs, Diodes：2 SCRs
- Voltage - Off State：800 V
- Current - On State (It (AV)) (Max)：500 A
- Current - On State (It (RMS)) (Max)：900 A
- Current - Non Rep. Surge 50, 60Hz (Itsm)：16300A, 17000A
- Operating Temperature：-40°C ~ 130°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：POW-R-BLOK™ Module
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：200 mA
- Current - Hold (Ih) (Max)：-
- Grade：-
- Qualification：-
Download product information
Overview
The Powerex LD430850 is a dual silicon-controlled rectifier (SCR) isolated module rated for 800 V repetitive peak forward and reverse blocking voltage. It supports an average forward current of 500 A at 180° conduction with a case temperature of 86°C, and handles up to 900 A RMS forward current. The device features a metal baseplate with aluminum nitride isolation, providing 3000 Vrms electrical isolation at 25°C. Key thermal characteristics include a junction-to-case thermal resistance of 0.0325 °C/W per module. Surge capabilities reach 17,000 A for one cycle at 60 Hz. Operating temperatures range from -40°C to +130°C.
Feature Summary
- Electrically isolated heatsinking via aluminum nitride isolator
- Compression bonded elements for low thermal impedance
- UL recognized packaging for simplified installation
Applications
- Bridge circuits
- AC & DC motor drives
- Battery supplies
- Power supplies
- Large IGBT circuit front ends
Procurement Notes
Verify the specific voltage rating suffix in the part number against the required application voltage. Confirm mounting torque specifications for M6 and M10 screws during assembly. Ensure thermal interface material compatibility with the metal baseplate. Check datasheet revision dates for updated thermal impedance coefficients.
Selection Notes
Select based on required blocking voltage and average forward current ratings. Consider the maximum rate-of-rise of on-state current (di/dt) limits for circuit protection design. Evaluate thermal resistance values for heatsink sizing under expected conduction angles. Verify gate trigger requirements against available drive circuitry.
Part Context
This component belongs to the POW-R-BLOK series of dual SCR isolated modules manufactured by Powerex Inc. The series offers various voltage ratings from 800 V to 1600 V while maintaining a consistent 500 A current capability. These modules are designed for phase control applications requiring robust isolation and high power density.
Replacement Considerations
Direct replacements must match the dual SCR configuration, 500 A current rating, and 800 V blocking voltage. Verify package dimensions and terminal configurations for mechanical compatibility. Ensure equivalent thermal resistance and isolation voltage ratings are maintained.
