INDUSTRY COMPONENT

Package Leads

Package leads are conductive terminals that connect semiconductor devices like Power MOSFET Arrays to external circuits, providing electrical pathways and mechanical support.

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Component Specifications

Definition
Package leads are metallic conductors extending from the encapsulation of semiconductor devices, specifically Power MOSFET Arrays, to facilitate electrical connectivity with printed circuit boards (PCBs) or other electronic assemblies. They serve dual functions: transmitting electrical signals and power between the semiconductor die and external systems, while also providing structural integrity for mounting and heat dissipation. Leads are typically arranged in standardized patterns (e.g., DIP, SOIC, TO-220) and are critical for reliability in high-current applications.
Working Principle
Package leads operate by establishing low-resistance electrical paths from the internal semiconductor die to external circuits. In Power MOSFET Arrays, leads connect source, gate, and drain terminals to PCB traces, enabling control of current flow. They also dissipate heat generated during switching operations through thermal conduction, with materials and geometry optimized to minimize parasitic inductance and resistance for efficient power transfer.
Materials
Copper alloys (e.g., C19400, C15100) with tin, silver, or nickel plating for corrosion resistance and solderability; lead frames may include iron-nickel alloys (e.g., Alloy 42) for thermal expansion matching.
Technical Parameters
  • Lead Count 3 to 100+ pins
  • Lead Pitch 1.27mm to 2.54mm
  • Resistance <5mΩ per lead
  • Current Rating Up to 100A per lead
  • Plating Thickness 2-10μm
  • Thermal Conductivity 200-400 W/m·K
Standards
ISO 9001, JEDEC JESD22, IPC-A-610

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Package Leads.

package leads Power MOSFET leads semiconductor terminals electronic packaging lead frames solderability thermal management JEDEC standards Package Leads in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Power MOSFET Array

A collection of multiple Power MOSFETs integrated into a single package or circuit arrangement.

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Engineering Analysis

Risks & Mitigation
  • Solder joint failure under thermal stress
  • Corrosion in humid environments
  • Mechanical damage during handling
FMEA Triads
Trigger: Thermal expansion mismatch between lead and PCB
Failure: Cracked solder joints leading to intermittent connections
Mitigation: Use compliant lead designs and thermal cycling testing per JEDEC standards
Trigger: Insufficient plating thickness
Failure: Corrosion and increased contact resistance
Mitigation: Specify minimum plating thickness (e.g., 5μm tin) and conduct salt spray testing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1mm for lead positioning, ±10% for electrical resistance
Test Method
Visual inspection per IPC-A-610, electrical continuity testing, thermal shock testing per JEDEC JESD22-A104

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 common failure modes of package leads?

Common failures include solder joint cracking due to thermal cycling, corrosion from environmental exposure, and mechanical fatigue from vibration, leading to increased resistance or open circuits.

How do package leads affect Power MOSFET performance?

Leads impact performance by introducing parasitic inductance and resistance, which can reduce switching speed and efficiency. Proper design minimizes these effects for optimal power handling.

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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Package / Encapsulation Package Pins