Single Pin Connectors

Teledyne Reynolds UK Single Pin Connectors provide a rugged, high-reliability interconnect for routing a single high-voltage conductor safely through compact assemblies. They are commonly specified where insulation integrity, controlled creepage/clearance, and secure mating are critical— including aerospace and defence power systems, pulsed-power equipment, test instrumentation, and high-voltage charging and discharge circuits.

Single pin designs simplify HV routing by isolating one circuit in a dedicated interface, reducing the risk of pin-to-pin flashover and making harness layout more straightforward. They are often selected for point-to-point HV feeds, high-energy discharge paths, and applications that benefit from robust mechanical retention, repeatable installation, and strong dielectric separation.

Key benefits

• Dedicated HV isolation: one circuit per connector supports strong dielectric separation
• Reliable mating and retention: secure coupling helps prevent intermittent contact under vibration
• Improved insulation coordination: easier to maintain creepage/clearance in tight envelopes
• Reduced harness complexity: clear routing for critical high-voltage feeds
• Service-friendly: straightforward installation, inspection and replacement

Typical applications

• High-voltage power inputs/outputs and distribution interfaces
• Capacitor charging circuits and capacitor discharge units (CDUs)
• Pulsed-power and ignition/trigger connections
• High-voltage test and measurement equipment
• Energy storage, discharge and switching subassemblies

Selection guidance

For the best match, start with the real electrical envelope (including transients), then confirm environmental and mechanical constraints. Single pin connectors are typically chosen and qualified around insulation coordination and integration details as much as nominal voltage.

• Working voltage & transients: maximum continuous voltage plus expected surge/overshoot
• Current and duty: continuous current, pulse current and repetition rate (if pulsed)
• Shielding: decide whether EMI control or a defined ground reference is required
• Insulation coordination: creepage/clearance targets, altitude, humidity and contamination class
• Mechanical interface: coupling style, keying, mounting and strain relief requirements
• Cable integration: dielectric system, bend radius, termination method and screening strategy

Why Teledyne Reynolds UK

• High-reliability design focus for aerospace and defence environments
• Support for selection, integration, and programme documentation needs
• Experience with high-voltage insulation challenges and harsh-environment interconnect

Related links: Reynolds UK products  |  Reynolds UK overview

---

Frequently Asked Questions

1) What are single pin connectors used for?

Single pin connectors are used to carry one high-voltage circuit through a dedicated, insulated interface. They’re common in HV power feeds, capacitor charging/discharge paths, pulsed-power interfaces, and high-voltage test equipment where strong dielectric separation and robust retention are required.

2) Why choose a single pin connector instead of a multi pin connector?

Single pin designs keep one conductor isolated, which can simplify insulation coordination and reduce the risk of pin-to-pin flashover. They’re often preferred for critical HV feeds, high-energy discharge circuits, or where the harness layout benefits from dedicated, clearly separated connections.

3) What information do you need to recommend the right single pin connector?

Maximum working voltage (including transients), current and duty (continuous and/or pulsed), environment (temperature, vibration/shock, humidity/contamination, altitude), shielding requirements, mounting constraints, and your cable construction/termination preferences.

4) How do creepage and clearance affect single pin connector selection?

Creepage and clearance help prevent arcing and surface tracking—especially at high voltage, high altitude, or in humid/contaminated environments. These distances can drive connector size, insulation geometry, and mounting approach, so they’re central to selecting the right connector for the application.

5) Do I need a shielded single pin connector?

You may want shielding if you need to control EMI, reduce noise coupling, or establish a defined ground reference for safety or performance. If EMI is not a concern and physical routing provides adequate separation, an unshielded approach may be sufficient. The right choice depends on your system requirements.

6) Are single pin connectors suitable for pulsed-power and high peak currents?

Yes—single pin connectors are frequently used in pulsed-power systems, but suitability depends on pulse peak current, pulse width, repetition rate, and thermal effects. Share your pulse profile and expected life cycles so the connector and termination approach can be matched correctly.

7) What installation practices improve reliability in high voltage systems?

Maintain specified creepage/clearance in the final assembly, keep interfaces clean and free of contamination, use correct torque/coupling procedures, and ensure strain relief is appropriate for the cable and vibration environment. Keep connections short where practical and follow a consistent grounding approach if shielded.

8) Can you support custom cable assemblies with single pin connectors?

Yes. Many programmes use build-to-print or tailored assemblies. Provide your voltage/current envelope, mechanical constraints, cable requirements, and any test/inspection or traceability needs, and we can help define a manufacturable assembly and documentation package. ​