---
title: "Pulse Transformer"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PULSE_TRANSFORMER"
  data_integrity_hash: "8c8b9e938198bf3dc1931d38fd8b9dc1"
  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:PULSE_TRANSFORMER"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/pulse-transformer.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/pulse-transformer"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "1 MHz - 100 MHz frequency range, 5-50 V pulse amplitude, -40°C to +85°C ambient temperature"
    unit: "NA"
engineering_limits:
  max_safe_operating_point:
    value: 0.3
    unit: "T"
    consequence: "Ferromagnetic core hysteresis loss exceeding 100 mW/cm³ at 50 MHz, dielectric polarization breakdown in polyimide insulation at 150°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Common-mode voltage exceeding 1500 V due to lightning surge"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Triple-layer polyimide insulation with 200 μm spacing, gas discharge tube protection at input"
  - node_2:
      trigger: "Core saturation from DC bias current exceeding 10 mA"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Gapped ferrite core design with 0.1 mm air gap, DC blocking capacitor in series"
bom_nodes:
  ferrite-core:
    type: "component"
    urn: "URN:CNFX:ME:FERRITE_CORE"
    interface_type: "physical-logic-coupled"
  primary-winding:
    type: "component"
    urn: "URN:CNFX:ME:PRIMARY_WINDING"
    interface_type: "physical-logic-coupled"
  secondary-winding:
    type: "component"
    urn: "URN:CNFX:ME:SECONDARY_WINDING"
    interface_type: "physical-logic-coupled"
  bobbin:
    type: "component"
    urn: "URN:CNFX:ME:BOBBIN"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "IEC 60076-16:2018 (POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINE APPLICATIONS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/IEEE C57.12.01-2015 (GENERAL REQUIREMENTS FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS)"
    scope: "Verified Engineering Specification"
  - standard: "EN 61558-2-16:2013 (SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS AND SIMILAR PRODUCTS FOR SUPPLY VOLTAGES UP TO 1 100 V - PART 2-16: PARTICULAR REQUIREMENTS AND TESTS FOR SWITCH MODE POWER SUPPLY UNITS AND TRANSFORMERS FOR SWITCH MODE POWER SUPPLY UNITS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/pulse-transformer.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "462b90944b44496df1a628158cc4150adcfab0fa7ffd531aaa7a41fe2b96a780"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pulse Transformer

## 1. Technical Definition
A transformer designed specifically to handle and isolate high-frequency digital pulse signals within Ethernet communication circuits.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1 MHz - 100 MHz frequency range, 5-50 V pulse amplitude, -40°C to +85°C ambient temperature**. Failure boundary: **Core saturation at 0.3 T magnetic flux density, insulation breakdown at 1500 V RMS, Curie temperature of 120°C for ferrite core**, Mechanism: **Ferromagnetic core hysteresis loss exceeding 100 mW/cm³ at 50 MHz, dielectric polarization breakdown in polyimide insulation at 150°C**.

### 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 |
| :--- | :--- | :--- | :--- |
| Common-mode voltage exceeding 1500 V due to lightning surge | 8 | Inter-winding insulation breakdown causing short circuit | Triple-layer polyimide insulation with 200 μm spacing, gas discharge tube protection at input |
| Core saturation from DC bias current exceeding 10 mA | 8 | Primary inductance reduction from 100 μH to &lt;10 μH, signal distortion &gt;3 dB | Gapped ferrite core design with 0.1 mm air gap, DC blocking capacitor in series |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Automatic Winding Machine**, **Vacuum Impregnation System**, **Laser Marking Machine**  
**Downstream Applications**: Ethernet Switches, Network Interface Cards, Industrial Communication Modules  

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

### Q: What is the primary function of a pulse transformer in Ethernet circuits?
**A**: A pulse transformer in Ethernet circuits isolates and transfers high-frequency digital pulse signals while preventing ground loops and electrical noise interference between connected devices.

### Q: Why is ferrite core material used in pulse transformers?
**A**: Ferrite cores are used because they provide high magnetic permeability at high frequencies with low core losses, making them ideal for handling fast digital pulses in Ethernet communication applications.

### Q: How does epoxy resin potting benefit pulse transformers?
**A**: Epoxy resin potting provides mechanical stability, protects against moisture and contaminants, improves thermal dissipation, and enhances electrical insulation for reliable performance in industrial environments.

## 6. Manufacturing Compliance
- IEC 60076-16:2018 (POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINE APPLICATIONS)
- ANSI/IEEE C57.12.01-2015 (GENERAL REQUIREMENTS FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS)
- EN 61558-2-16:2013 (SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS AND SIMILAR PRODUCTS FOR SUPPLY VOLTAGES UP TO 1 100 V - PART 2-16: PARTICULAR REQUIREMENTS AND TESTS FOR SWITCH MODE POWER SUPPLY UNITS AND TRANSFORMERS FOR SWITCH MODE POWER SUPPLY UNITS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Pulse Transformer](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/pulse-transformer)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PULSE_TRANSFORMER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: bdd02c4a
