---
title: "SCR Module"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SCR_MODULE"
  data_integrity_hash: "d1eb41a96c76da0705f2fb16452b5275"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SCR_MODULE"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/scr-module.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/scr-module"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.8-1.2 kV forward blocking voltage, 100-500 A forward current, -40°C to 125°C junction temperature"
    unit: "A / V"
engineering_limits:
  max_safe_operating_point:
    value: 1.5
    unit: "kV"
    consequence: "Thermal runaway due to silicon junction overheating beyond 150°C, causing irreversible crystal lattice damage and loss of semiconductor properties"
fmea_matrix_quantitative:
  - node_1:
      trigger: "dV/dt exceeding 1000 V/μs during commutation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Snubber circuit with 47 Ω resistor and 0.1 μF capacitor in parallel with each SCR"
  - node_2:
      trigger: "Gate oxide breakdown at 25 V gate-cathode voltage"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Zener diode clamping at 15 V with 10 Ω series gate resistor"
bom_nodes:
  scr-thyristor-die:
    type: "component"
    urn: "URN:CNFX:ME:SCR_THYRISTOR_DIE"
    interface_type: "physical-logic-coupled"
  gate-drive-circuit:
    type: "part"
    urn: "URN:CNFX:ME:GATE_DRIVE_CIRCUIT"
    interface_type: "physical-logic-coupled"
  heat-sink:
    type: "component"
    urn: "URN:CNFX:ME:HEAT_SINK"
    interface_type: "physical-logic-coupled"
  main-terminals-anodecathode:
    type: "component"
    urn: "URN:CNFX:ME:MAIN_TERMINALS_ANODECATHODE"
    interface_type: "physical-logic-coupled"
  gate-terminal:
    type: "component"
    urn: "URN:CNFX:ME:GATE_TERMINAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/scr-module.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "563ba0dd30d9b1c4663d1697064f8809575fe6b8a3233797a4ff37bd1a4d82a2"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: SCR Module

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

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.8-1.2 kV forward blocking voltage, 100-500 A forward current, -40°C to 125°C junction temperature**. Failure boundary: **1.5 kV forward blocking voltage, 600 A forward current, 150°C junction temperature**, Mechanism: **Thermal runaway due to silicon junction overheating beyond 150°C, causing irreversible crystal lattice damage and loss of semiconductor properties**.

### 2.1 Analytical Physics Model
Governed by the **Joule Heating & Thermal Resistance**:

> **Primary Equation**: $P = I^2 R = \frac{V^2}{R}$  
> **Engineering Impact**: Governs heating element sizing for shrink tunnels/sealers.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| I | Current | Engineering Constant |
| R | Resistance | Engineering Constant |
| V | Voltage | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| dV/dt exceeding 1000 V/μs during commutation | 8 | Unintended SCR turn-on leading to shoot-through current | Snubber circuit with 47 Ω resistor and 0.1 μF capacitor in parallel with each SCR |
| Gate oxide breakdown at 25 V gate-cathode voltage | 8 | Loss of gate control causing continuous conduction | Zener diode clamping at 15 V with 10 Ω series gate resistor |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | A / V | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Gate Drive Circuit](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/gate-drive-circuit.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Power Supply Unit**, **Heat Sink Assembly System**, **Automated Test Equipment**  
**Downstream Applications**: Motor Drives, Power Controllers, Industrial Heating Systems  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the main applications of SCR modules in electrical equipment manufacturing?
**A**: SCR modules are used for AC motor speed control, power regulation in industrial heaters, soft-start systems for large motors, and phase control in welding equipment.

### Q: How does the heat sink design affect SCR module performance?
**A**: The aluminum heat sink dissipates heat generated during operation, preventing thermal runaway and ensuring stable performance at high current ratings. Proper heat sink sizing is critical for reliability.

### Q: What maintenance is required for SCR modules in industrial environments?
**A**: Regular inspection of terminals for corrosion, cleaning of heat sink fins to prevent dust buildup, and periodic thermal imaging to detect hot spots are recommended maintenance practices.

## 6. Manufacturing Compliance
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: SCR Module](https://cnfx.com/industry/electrical-equipment-manufacturing/product/scr-module)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SCR_MODULE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: b5164958
