Diodes & Thyristors (SCR) – Industrial Power Semiconductors for Reliable Control

Discover high-performance diodes and thyristors (SCR) engineered for industrial power control and efficient rectification.
Our SCRs and diode modules deliver precise switching, high surge current capacity, and stable thermal performance for demanding applications including motor drives, power supplies, heating systems, and automation equipment.

Choose the Right Diode or SCR for Your Application

Selecting the correct diode or SCR is crucial for reliable industrial power control. Consider voltage rating, current capacity, package type, and cooling method to ensure stable performance in your motor drives, power supplies, and heating systems. Our engineers are ready to assist with technical guidance and custom solutions.

Key Advantages

  • High Current & Voltage Capability – Designed for demanding industrial environments and heavy-duty power systems.

  • Reliable Thermal Performance – Excellent heat dissipation for stable long-term operation.

  • Strong Surge & Overload Tolerance – Built to withstand harsh electrical conditions.

  • Flexible Integration – Suitable for modules, rectifier assemblies, and custom OEM designs.

  • Industrial-Grade Durability – Engineered for continuous operation in automation, heating, and power control applications.

Applications

TOP Application Scenarios

  • Motor Drive & Automation Systems
  • Industrial Rectification & Power Supply
  • Industrial Heating & High-Power Control
  • Renewable Energy & Power Electronics Manufacturing

IndustrialAutomation

Motor & Heating Control

Specifications

Parameter
Description
Voltage Rating
600V – 6500V
Current Rating
10A – 3000A
Device Type
Diode / SCR
Package Type
Stud / Capsule / Module
Cooling Method
Heatsink / Forced air (optional)
Operating Temperature
0-70℃
Application Load
Resistive & inductive loads

FAQs

How do I choose the correct current rating?

For industrial applications, we recommend selecting 3–5× the actual working current to handle surge current, temperature rise, and inductive load conditions.

Guidelines:

  • Light resistive load → ≥ 3× working current

  • Inductive or harsh load → ≥ 4–5× working current

For devices above 10A, a heatsink is required. Forced air cooling (fan) is recommended for improved reliability.

What voltage rating should I select?

Choose a device with at least 2× the AC line voltage.

Examples:

  • 220V AC → 600V device

  • 380V AC → 1200V device

This margin helps protect against voltage spikes and transient conditions.

Do I need a snubber or RC protection circuit?

Yes, RC snubber or surge protection is strongly recommended for inductive loads such as:

  • Motors

  • Transformers

  • Solenoids

  • Inductive power supplies

This helps suppress voltage spikes and protects the diode or SCR from damage.

Do you support special industrial-grade versions?

Yes. We support a wide range of special and customized solutions, including:

  • High-temperature versions

  • High surge current types

  • Fast recovery diodes (FRD)

  • Custom stud, capsule, and module packages

  • OEM/ODM logo printing and packaging

Contact us

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