Termination Pins: Temperature Range -40°C to +125°C

Q: What are the main functions of termination pins in magnetic modules?

Termination pins serve three primary functions: providing electrical connection points between internal windings and external circuits, ensuring mechanical stability of the connection interface, and facilitating automated assembly processes through consistent dimensional characteristics.

Q: How do I select the right termination pin for my application?

Selection criteria include current carrying capacity, voltage rating, mechanical retention requirements, environmental conditions (temperature, humidity), plating requirements for corrosion resistance and solderability, and compatibility with automated assembly equipment.

Q: What are common failure modes for termination pins?

Common failures include solder joint fractures due to thermal cycling, corrosion leading to increased contact resistance, mechanical deformation during assembly, and plating degradation in harsh environments.

Component Specifications

Definition

Termination pins are precision-engineered conductive components designed to provide reliable electrical termination points in magnetic modules such as transformers, inductors, and chokes. They serve as interface elements between the magnetic core/winding assembly and external circuitry, ensuring secure mechanical attachment and consistent electrical conductivity. These pins are typically inserted into bobbin or core structures and may be soldered, welded, or crimped to establish permanent connections.

Working Principle

Termination pins function by providing a conductive pathway between the internal windings of a magnetic component and external circuit connections. When installed, they create a low-resistance interface that allows electrical current to flow into and out of the magnetic module while maintaining mechanical stability. The pins may incorporate features such as flanges, barbs, or knurls to enhance retention within insulating materials.

Materials

Copper alloys (C11000, C10200), brass (C26000), phosphor bronze (C51000), or beryllium copper (C17200) with optional tin, silver, or gold plating for corrosion resistance and improved solderability. Insulation materials may include nylon, PBT, or LCP for bobbin integration.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	3mm to 15mm
Pin Diameter	0.5mm to 2.5mm
Current Rating	1A to 20A
Voltage Rating	Up to 1000V
Plating Thickness	2μm to 10μm
Temperature Range	-40°C to +125°C
Contact Resistance	<10mΩ

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, IEC 60950, UL 94V-0

Parent Products

This component is used in the following industrial products

Magnetics Module

A specialized electronic component within port interfaces that manages magnetic fields for signal integrity, noise suppression, and electromagnetic compatibility.

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Engineering Analysis

Risks & Mitigation

Poor solder joint formation
Mechanical deformation during insertion
Corrosion in humid environments
Insufficient current carrying capacity
Thermal expansion mismatch

FMEA Triads

Trigger: Insufficient pin retention design
Failure: Pin dislodgement during vibration or thermal cycling
Mitigation: Implement barbed or knurled pin designs, use retention clips, or apply adhesive during assembly

Trigger: Inadequate plating thickness
Failure: Corrosion leading to increased contact resistance
Mitigation: Specify minimum plating thickness based on environmental requirements, implement quality control for plating consistency

Trigger: Material fatigue from thermal cycling
Failure: Solder joint cracking or pin fracture
Mitigation: Select materials with compatible thermal expansion coefficients, design stress relief features, implement proper soldering profiles

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05mm on critical dimensions, ±0.1mm on length

Test Method

Dimensional verification per ISO 2768, electrical testing per IEC 60512, environmental testing per IEC 60068

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Termination Pins

Manufacturer profiles associated with Termination Pins.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What are the main functions of termination pins in magnetic modules?