Terminals/Pins: Temperature Range -55°C to +125°C

Component Specifications

Definition

Terminals and pins in feedthrough filters are specialized electrical connectors designed to pass signals or power through shielding barriers while providing electromagnetic interference (EMI) filtering. These components typically consist of conductive metal elements that connect internal filter circuits to external wiring, often incorporating capacitive or inductive elements directly within the terminal structure to filter unwanted high-frequency noise. They maintain electrical continuity while preventing electromagnetic interference from passing through the filter housing, making them critical for signal integrity in sensitive electronic applications.

Working Principle

Feedthrough filter terminals/pins operate by providing a conductive path through a shielded enclosure while incorporating passive filter elements (typically capacitors or LC networks) that create a low-impedance path to ground for high-frequency noise. The terminal's construction creates a pi-filter configuration where the pin itself forms part of the filtering circuit, attenuating electromagnetic interference by shunting unwanted frequencies to the filter's ground connection while allowing desired signals to pass through with minimal attenuation.

Materials

Copper alloys (brass, beryllium copper, phosphor bronze) with gold, silver, or tin plating; stainless steel for corrosion resistance; ceramic or glass insulators; dielectric materials for capacitive elements

Technical Parameters

Parameter	Typical range	Notes & selection driver
Mounting Type	Panel mount, PCB mount, solder tab
Current Rating	1A to 100A
Insertion Loss	40dB to 80dB at 100MHz
Voltage Rating	50V to 1000V DC/AC
Temperature Range	-55°C to +125°C
Contact Resistance	<10 mΩ
Insulation Resistance	>1000 MΩ
Dielectric Withstanding Voltage	500V to 2000V

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

Standards

IEC 60384, MIL-PRF-15733, UL 94, RoHS

Parent Products

This component is used in the following industrial products

Feedthrough Filter

An electromagnetic interference (EMI) filter designed to pass signals or power through a shielding enclosure while suppressing unwanted frequencies.

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Engineering Analysis

Risks & Mitigation

Insufficient filtering leading to EMI compliance failures
Mechanical failure from vibration or thermal cycling
Corrosion in harsh environments
Incorrect installation causing short circuits
Degradation of filtering performance over time

FMEA Triads

Trigger: Poor solder joints or mechanical connections
Failure: Intermittent electrical connectivity or complete connection loss
Mitigation: Implement proper soldering procedures, use appropriate torque specifications, conduct pull testing, and perform regular inspection

Trigger: Dielectric breakdown in capacitive elements
Failure: Short circuit or reduced filtering effectiveness
Mitigation: Use capacitors with adequate voltage ratings, implement overvoltage protection, ensure proper spacing, and select appropriate dielectric materials

Trigger: Corrosion of conductive surfaces
Failure: Increased contact resistance and potential open circuits
Mitigation: Apply appropriate plating (gold, silver, tin), use corrosion-resistant base materials, implement environmental sealing, and control storage conditions

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±10% capacitance value, ±0.1mm dimensional tolerance for mounting features

Test Method

Insertion loss measurement per IEC 62333, dielectric withstand voltage testing, insulation resistance testing, thermal cycling, vibration testing, salt spray testing for corrosion resistance

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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

Manufacturers of Terminals/Pins

Manufacturer profiles associated with Terminals/Pins.

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Gland Body

A gland body is the main housing component of an aluminum cable gland that provides mechanical protection and environmental sealing for electrical cables entering enclosures.

Frequently Asked Questions

What is the difference between feedthrough terminals and regular terminals?

Feedthrough terminals incorporate filtering elements (typically capacitors) within the terminal structure to provide EMI suppression, while regular terminals only provide electrical connectivity without filtering functionality.

How do I select the right feedthrough terminal for my application?

Consider current rating, voltage requirements, frequency range of noise to be filtered, insertion loss specifications, mounting type, environmental conditions, and compliance with relevant industry standards.

Can feedthrough terminals be used in high-vibration environments?

Yes, many feedthrough terminals are designed with mechanical locking features, rugged construction, and vibration-resistant materials specifically for automotive, aerospace, and industrial applications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Terminals/Pins