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.
With rugged industrial-grade construction, multiple package options, and OEM/ODM customization, our power semiconductor products ensure reliable operation and long service life.
Ideal for engineers, system integrators, and procurement professionals seeking durable, high-quality power components.
Compare Our Diodes & Thyristors (SCR) Solutions
Find the right power semiconductor device for your rectification and control application.
| Device Type | Typical Current / Power | Voltage Range | Key Features / Highlights | Typical Applications |
|---|---|---|---|---|
| Stud Type Devices | Medium current (10A – 300A) | Up to 1200V+ | Thread-mounted, easy installation, good heat dissipation | Rectifiers, battery chargers, welding machines, power supplies |
| Disc Type Devices | High current (300A – 3000A+) | Up to 6500V+ | High surge capability, low thermal resistance, press-fit structure | HV rectifiers, soft starters, power transmission, industrial drives |
| Power Modules | Medium to high power (27A – 1000A) | 600V – 2200V | Integrated diode/SCR modules, compact, easy system integration | Rectifiers, inverters, SCR controllers, industrial automation |
| Semiconductor Chips | Die-level (5A - 500A) | 600V - 6500V | Controllable Silicon Chip / Rectifier Diode Chip | OEM module manufacturing, custom power device design |
Not sure which diode or thyristor (SCR) fits your application? Contact our technical team for expert selection support.
Why Choose Our Diodes & Thyristors (SCR)
- High Surge & Overload Capability –
Designed for industrial-grade rectification and power control, capable of handling high inrush and overload conditions. - Stable Thermal Performance –
Available in capsule, stud, and module packages to ensure efficient heat dissipation and reliable operation. - Fast Switching Response –
Accurate triggering and reliable conduction for high-demand power circuits. - Wide Voltage & Current Selection –
High voltage options from 600V to 6500V and high current ratings from 10A to 3000A. - Long Service Life –
Rugged semiconductor construction ensures continuous operation in harsh industrial environments. - OEM & ODM Customization Available –
Custom voltage/current ratings, module configurations, private labeling, and packaging. - Proven Manufacturing Experience –
Over 15 years of diode and SCR production expertise.
Applications
Diodes and thyristors are essential components in industrial power conversion and control systems.
- Rectification & Power Supplies –
AC/DC rectifiers, industrial power supplies, charging systems - Motor Drives & Control –
DC drives, soft start circuits, motor power control - Industrial Heating Systems –
Induction heating, resistance heating, furnace control - Automation Equipment –
Power control modules, automation cabinets, control panels - Energy & Heavy Industry –
Welding equipment, UPS systems, energy conversion systems
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Product Types & Packages
Diodes
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Standard rectifier diodes
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Fast recovery diodes (FRD)
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High-temperature diodes
Thyristors (SCR)
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Phase control SCRs
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High surge current SCRs
Package Options
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Stud type
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Capsule type
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Module type
Technical Specifications (Typical Range)
| Parameter | Specification |
|---|---|
| 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 | Industrial-grade |
| Application Load | Resistive & inductive loads |
| Customization | OEM / ODM supported |
Download User Manual for detailed specifications.
Selection & Installation Guidelines
Proper selection and thermal management are critical for reliable operation of diodes and SCRs.
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Always select devices with sufficient voltage and current margins.
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Use appropriate heatsinks and cooling methods based on current rating.
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For inductive loads, additional protection circuits are recommended.
Watch our YouTube tutorials:
Choose the Right SCR or Diode Type for Your System:
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| Stud Type Devices | Disc Type Devices |
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| Power Modules | Semiconductor Chips |
FAQs – Diodes & Thyristors (SCR)
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:
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Light resistive load → ≥ 3× working current
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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:
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220V AC → 600V device
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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:
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Motors
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Transformers
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Solenoids
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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:
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High-temperature versions
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High surge current types
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Fast recovery diodes (FRD)
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Custom stud, capsule, and module packages
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OEM/ODM logo printing and packaging
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Contact Us
Email: ann@softstarterpro.com
WhatsApp: +86 180 0669 7926
