KP SCR Thyristor Module 5A–100A 1000V Unidirectional Rectifier

KP Series Unidirectional Thyristor (SCR) Module — 5A to 100A, 1000V

The KP Series SCR Thyristor Module is a high-performance, unidirectional silicon-controlled rectifier designed for demanding power electronics applications. Available in a wide range of current ratings — 5A, 10A, 20A, 30A, 50A, and 100A — with a peak voltage rating of 1000V, this module delivers reliable, consistent rectification for industrial and commercial power control systems. Compatible with KP100.58 and M220.58 packaging formats.

Key Features

• Wide Current Range: Available in 5A, 10A, 20A, 30A, 50A, and 100A ratings to suit varied load requirements
• High Voltage Rating: 1000V max forward and reverse voltage for robust circuit protection
• Max Forward Current: 150A (peak)
• Operating Voltage: 220V
• Unidirectional Design: Ideal for single-phase and DC power control circuits
• Package Compatibility: KP100.58 and M220.58 module packaging for easy integration
• Customizable: Custom configurations available to meet your specific project needs
• Condition: Brand new

Specifications

⚠️ Important Selection & Installation Guidelines

1. Choosing the Right Current Rating

The current rating marked on the module represents the average on-state value, not the long-term continuous RMS value. Always leave sufficient safety margin based on your actual working environment:

• Resistive Load: Multiply actual current (A) × 2 to 2.5 = Required module nominal current (A)
• Inductive Load: Multiply actual current (A) × 6 to 7 = Required module nominal current (A)

2. Heat Sink Requirement

When the device's actual working current exceeds 5A, a properly rated heat sink must be installed to ensure safe, long-term operation and prevent thermal damage to the module.

Common Applications

• AC-to-DC power conversion and rectification
• Motor speed control and soft-start circuits
• Industrial power supplies and inverters
• Voltage regulators and phase-control circuits
• Welding equipment and electroplating power supplies

For technical reference on power semiconductor standards and safe electrical component usage, visit the U.S. Consumer Product Safety Commission (CPSC) or review relevant electrical safety guidelines at OSHA's Electrical Safety resource.

Frequently Asked Questions

Q: What is a KP unidirectional thyristor (SCR) module used for?

A: A KP unidirectional thyristor module, also known as an SCR (Silicon Controlled Rectifier), is used to convert AC power to DC, control motor speed, regulate voltage, and manage power flow in industrial and commercial applications. It allows current to flow in only one direction and is triggered by a gate signal.

Q: How do I select the correct current rating for my KP thyristor module?

A: The module's rated current is an average on-state value. For resistive loads, select a module with a nominal current rating of 2 to 2.5 times your actual operating current. For inductive loads (motors, transformers, solenoids), select a module rated at 6 to 7 times your actual operating current to ensure a sufficient safety margin.

Q: Do I need a heat sink for this KP SCR thyristor module?

A: Yes. If your actual working current exceeds 5A, a compatible heat sink must be used with this module. Adequate thermal management is critical to maintaining performance, reliability, and long component life. Failure to use a heat sink under higher current loads may result in overheating and module failure.

Q: Is the KP100.58 / M220.58 packaging compatible with standard mounting hardware?

A: Yes. The KP100.58 and M220.58 packaging formats follow standard power module mounting conventions, making them compatible with widely available heat sinks, bus bars, and mounting hardware used in industrial power assemblies. Custom configurations are also available upon request.