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RELAY - JB5 (P/N jd4a) - Serviceable

P/N: jd4a

Category: Relays

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In Stock (1 available)
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This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).

Available Inventory

Condition Stock
Serviceable 1 Available

Product Description

The jd4a is an electromechanical relay that switches electrical loads from low-current control circuits in aircraft DC power distribution systems. This relay interfaces with flight control logic, avionics, and system management circuits, converting small control signals into larger load switching actions. Qualified to MIL-PRF-6106 or MIL-PRF-83536 standards for environmental and electrical performance.

Installation requires verification of coil voltage and contact ratings per the aircraft wiring diagram and applicable maintenance manual. Common in general aviation and corporate aircraft electrical architectures.

Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.

Frequently Asked Questions

What is the RELAY - JB5 (P/N jd4a)?

The jd4a is an electromechanical relay that switches electrical loads from low-current control circuits in aircraft DC power distribution systems. This relay interfaces with flight control logic, avionics, and system management circuits, converting small control signals into larger load switching actions.

Is the jd4a compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The RELAY - JB5 is available in: Serviceable. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the jd4a come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the jd4a?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.

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