---
title: "Opto-isolator Array"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:OPTO_ISOLATOR_ARRAY"
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  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:OPTO_ISOLATOR_ARRAY"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/opto-isolator-array.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/opto-isolator-array"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Input voltage: 3.3-24 VDC, Output voltage: 5-30 VDC, Isolation voltage: 3750 Vrms, Temperature: -40°C to +85°C"
    unit: "kV"
engineering_limits:
  max_safe_operating_point:
    value: 60
    unit: "mA"
    consequence: "LED photodiode degradation at high current density (Schockley-Read-Hall recombination), dielectric breakdown in isolation barrier (Paschen's law at 4000 Vrms), thermal runaway at junction temperature &gt; 150°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Input overvoltage transient &gt; 30 VDC"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Zener diode clamping at input with 27 V breakdown voltage"
  - node_2:
      trigger: "Output short-circuit current &gt; 100 mA"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Current-limiting resistor network with 75 mA maximum output"
bom_nodes:
  led-array:
    type: "part"
    urn: "URN:CNFX:ME:LED_ARRAY"
    interface_type: "physical-logic-coupled"
  photodetector-array:
    type: "part"
    urn: "URN:CNFX:ME:PHOTODETECTOR_ARRAY"
    interface_type: "physical-logic-coupled"
  insulating-barrier:
    type: "component"
    urn: "URN:CNFX:ME:INSULATING_BARRIER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "IEC 60747-5-5:2020 (OPTOELECTRONIC DEVICES - PHOTOCOUPLERS)"
    scope: "Verified Engineering Specification"
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
  - standard: "EN 62368-1:2014 (AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - SAFETY REQUIREMENTS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/opto-isolator-array.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "6957328894851d848b65df13bd1535947dbc1d5b992cf22815355601e2a18182"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Opto-isolator Array

## 1. Technical Definition
An integrated circuit containing multiple opto-isolators for electrical isolation between input and output signals.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Input voltage: 3.3-24 VDC, Output voltage: 5-30 VDC, Isolation voltage: 3750 Vrms, Temperature: -40°C to +85°C**. Failure boundary: **Input current exceeds 60 mA continuous, LED forward current &gt; 50 mA, Isolation breakdown at &gt; 4000 Vrms, Junction temperature &gt; 150°C**, Mechanism: **LED photodiode degradation at high current density (Schockley-Read-Hall recombination), dielectric breakdown in isolation barrier (Paschen's law at 4000 Vrms), thermal runaway at junction temperature &gt; 150°C**.

### 2.1 Analytical Physics Model
Governed by the **Rayleigh Resolution Criterion**:

> **Primary Equation**: $d = \frac{0.61 \lambda}{NA}$  
> **Engineering Impact**: Defines the theoretical limit of machine vision systems.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \lambda | Wavelength | Engineering Constant |
| NA | Numerical Aperture | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Input overvoltage transient &gt; 30 VDC | 8 | LED emitter burnout due to current density &gt; 100 A/cm² | Zener diode clamping at input with 27 V breakdown voltage |
| Output short-circuit current &gt; 100 mA | 8 | Phototransistor thermal runaway at junction temperature &gt; 175°C | Current-limiting resistor network with 75 mA maximum output |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [LED Array](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/led-array.md) `(Standalone System)`
- [Photodetector Array](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/photodetector-array.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Wafer Prober**, **Wire Bonder**, **Encapsulation Press**  
**Downstream Applications**: Industrial Motor Drives, Medical Monitoring Equipment, Telecommunications Switches  

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

### Q: What is the primary application of an opto-isolator array in computer and electronic manufacturing?
**A**: Opto-isolator arrays provide electrical isolation between different circuit sections, preventing noise, voltage spikes, and ground loops from interfering with sensitive components in computers, communication devices, and optical products.

### Q: How does the Gallium Arsenide (GaAs) LED in this opto-isolator array improve performance?
**A**: GaAs LEDs offer higher efficiency and faster switching speeds compared to traditional materials, enabling better signal integrity and faster data transmission in opto-isolator applications.

### Q: What are the advantages of using a multi-channel opto-isolator array versus discrete opto-isolators?
**A**: Arrays save board space, reduce component count, improve matching between channels, and simplify assembly while providing consistent isolation performance across multiple signal paths.

## 6. Manufacturing Compliance
- IEC 60747-5-5:2020 (OPTOELECTRONIC DEVICES - PHOTOCOUPLERS)
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)
- EN 62368-1:2014 (AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - SAFETY REQUIREMENTS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Opto-isolator Array](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/opto-isolator-array)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: OPTO_ISOLATOR_ARRAY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0e63627f
