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Main Terminals (Anode/Cathode) Component – Electrical Equipment Manufacturing

Component Specifications

Definition

Main terminals (anode/cathode) are critical electrical connection points in Silicon-Controlled Rectifier (SCR) modules, designed to handle high current loads and provide reliable interfaces between the semiconductor device and external power circuits. These terminals facilitate the controlled rectification of alternating current to direct current in industrial applications.

Working Principle

The anode and cathode terminals serve as the primary electrical pathways for current flow through the SCR. When a gate signal triggers the SCR, current flows from the anode to the cathode terminal, enabling power control in AC-to-DC conversion circuits.

Materials

Copper alloy (typically C11000 or C10100) with tin or silver plating for enhanced conductivity and corrosion resistance; insulating materials include ceramic or high-temperature thermoplastics.

Technical Parameters

Current Rating 50-1000A
Voltage Rating 600-1600V
Temperature Range -40°C to +125°C
Contact Resistance <0.5mΩ
Insulation Resistance >1000MΩ

Standards

ISO 9001, DIN EN 60146

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Main Terminals (Anode/Cathode).

Parent Products

This component is used in the following industrial products

SCR Module

A power electronic component that contains one or more Silicon Controlled Rectifiers (SCRs) and associated circuitry for controlling electrical power.

View Product Details

Engineering Analysis

Risks & Mitigation

Overheating due to high current loads
Corrosion in humid environments
Mechanical stress from vibration

FMEA Triads

Trigger: Loose terminal connections
Failure: Increased contact resistance leading to overheating and potential thermal runaway
Mitigation: Implement torque-controlled fastening and regular maintenance inspections

Trigger: Material degradation from environmental exposure
Failure: Reduced conductivity and eventual connection failure
Mitigation: Use corrosion-resistant plating and protective enclosures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.1mm for terminal dimensions, ±5% for electrical specifications

Test Method

High-potential testing, thermal cycling, vibration testing per IEC 60747 standards

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between anode and cathode terminals in SCR modules?

The anode terminal is the positive input where current enters the SCR, while the cathode terminal is the negative output where current exits after rectification.

How do main terminals affect SCR module performance?

Main terminals directly impact current-carrying capacity, thermal management, and electrical reliability; poor terminal design can lead to overheating, voltage drops, or connection failures.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Main Terminals (Anode/Cathode)