DIODE (P/N 2503687-203) - New Surplus
P/N: 2503687-203
Category: Electrical & Electronic Components
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Available Inventory
| Condition | Price | Stock |
|---|---|---|
| New Surplus | $3.50 | 10 Available |
Product Description
The 2503687-203 is a semiconductor diode for aircraft DC electrical circuits. It blocks reverse current and suppresses inductive spikes generated by relay coil de-energization, protecting sensitive control electronics from voltage transients. Installed across relay coils in aircraft electrical control panels and avionics systems, the diode maintains correct polarity orientation per the aircraft maintenance manual.
This component prevents relay kickback damage to transistors, logic circuits, and control modules in autopilot, lighting, and flight control systems. Installation follows FAA AC 43.13-1B wiring practices.
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 DIODE (P/N 2503687-203)?
The 2503687-203 is a semiconductor diode for aircraft DC electrical circuits. It blocks reverse current and suppresses inductive spikes generated by relay coil de-energization, protecting sensitive control electronics from voltage transients.
Is the 2503687-203 compatible with my aircraft's avionics suite?
Avionics compatibility depends on your aircraft model and existing installation. The DIODE is available in: New Surplus. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.
Does the 2503687-203 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 2503687-203?
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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