DIODE CONNECTION; BATTERYINDICATOR (P/N a4111a) - As Removed

The a4111a is a diode connection for aircraft battery-indicator circuits. This component provides unidirectional current flow in DC systems, preventing backfeed that could damage sensitive indicator electronics. Installed in the battery sense lead to panel-mounted indicators, it isolates the display from reverse current while allowing normal forward signal transmission.

Proper polarity installation is critical—follow aircraft wiring manual specifications and AC 43.13-1B electrical practices. Used in general aviation and corporate aircraft electrical systems where battery status monitoring requires protection from voltage transients and reverse current conditions.

What is the DIODE CONNECTION; BATTERYINDICATOR (P/N a4111a)?

The a4111a is a diode connection for aircraft battery-indicator circuits. This component provides unidirectional current flow in DC systems, preventing backfeed that could damage sensitive indicator electronics.

Is the a4111a calibrated and ready to install?

Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The DIODE CONNECTION; BATTERYINDICATOR is available in: As Removed. Contact us to confirm calibration status for your selected condition.

Can the a4111a be used as a direct replacement in my aircraft?

The DIODE CONNECTION; BATTERYINDICATOR is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.

Do you offer instrument exchange programs for the a4111a?

Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the a4111a.