INDUSTRY COMPONENT

Lead Pins

Lead pins are conductive metal pins used to connect electronic components like laser diodes to circuit boards, providing electrical and mechanical interfaces.

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Component Specifications

Definition
Lead pins are precision-engineered conductive terminals typically made from metals or alloys, designed to establish electrical connections between semiconductor devices (e.g., laser diodes) and external circuits. They serve as both electrical conduits and mechanical anchors, ensuring stable signal transmission and physical mounting within light source assemblies. In industrial applications, they are critical for thermal management, signal integrity, and durability in high-frequency or high-power environments.
Working Principle
Lead pins function by providing a low-resistance electrical path between the internal semiconductor die of a component (like a laser diode) and the external circuitry. They conduct electrical signals or power while dissipating heat generated during operation. Mechanically, they secure the component to a substrate (e.g., PCB) through soldering or welding, maintaining alignment and stability under thermal or vibrational stresses.
Materials
Common materials include copper alloys (e.g., C19400 for conductivity and strength), phosphor bronze (for spring properties), or nickel-plated steel (for corrosion resistance). Gold or tin plating may be applied to enhance solderability and reduce oxidation. For high-power laser diodes, materials with high thermal conductivity (e.g., copper-tungsten composites) are used.
Technical Parameters
  • Length 5mm to 20mm
  • Diameter 0.3mm to 1.5mm
  • Resistance < 10 mΩ
  • Current Rating Up to 5A
  • Plating Thickness 0.5μm to 2μm (gold/tin)
  • Temperature Range -40°C to +150°C
Standards
ISO 9001, IEC 60191, JEDEC MS-001

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lead Pins.

lead pins laser diode pins electronic connectors semiconductor terminals industrial components PCB mounting Lead Pins in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Light Source (e.g., Laser Diode)

An optical component that generates and emits light, typically coherent or specific-wavelength illumination, for sensing applications.

View Product Details

Quartz Crystal Resonator

A piezoelectric component that generates precise electrical oscillations at a specific frequency when voltage is applied.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Poor solder joints leading to electrical failure
  • Thermal fatigue from repeated heating/cooling cycles
  • Corrosion in humid environments
FMEA Triads
Trigger: Insufficient plating thickness
Failure: Oxidation increases resistance, causing signal degradation or open circuits
Mitigation: Specify minimum plating thickness (e.g., 1μm gold) and implement regular quality checks per ISO 9001
Trigger: Mechanical stress during assembly
Failure: Pin bending or breakage, disrupting electrical connections
Mitigation: Use automated insertion tools with force control and design pins with stress-relief features

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05mm diameter, ±0.1mm length
Test Method
Electrical continuity testing (per IEC 60191), thermal cycling tests, solderability assessments (e.g., wetting balance tests)

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 are the key considerations when selecting lead pins for high-power laser diodes?

Prioritize thermal conductivity (e.g., copper alloys), current rating (≥3A for high power), and plating quality to prevent oxidation. Ensure compliance with standards like IEC 60191 for reliability in industrial environments.

How do lead pins impact signal integrity in optical devices?

Poorly designed pins can cause signal loss, impedance mismatches, or electromagnetic interference. Use low-resistance materials and precise geometries to maintain signal fidelity, especially in high-frequency applications.

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.

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