JANTX1N968B-1

The JANTX1N968B-1 is a 20 V, 500 mW Zener voltage regulator diode manufactured by Microchip Technology, supplied in a hermetically sealed, double-plug DO-35 glass axial-leaded package. This device is processed to the JANTX quality level of MIL-PRF-19500/117, delivering tightly controlled reverse-bias characteristics and low dynamic impedance for precise voltage clamping and reference applications. The hermetically sealed glass body ensures stable electrical performance over a wide temperature range and provides excellent resistance to humidity, shock, and vibration. The 20 V nominal Zener voltage and 500 mW steady-state power dissipation make it suitable for low-power regulation, reference generation, and transient overvoltage suppression in circuits where compact size and long-term reliability are critical.

Typical deployments include power conditioning modules, avionics, satellite payloads, radar systems, instrumentation, and industrial process controls where defense-grade components are mandated. Designers often select JANTX-qualified Zeners to establish clean reference voltages for analog-to-digital converters, protect sensitive gate-drive circuits, or clamp bus transients in distributed architectures. From a procurement standpoint, this part carries full military pedigree with traceable lot and date coding, and it requires sourcing through authorized channels to mitigate counterfeit risk. As with many QPL discretes, lead times can be extended during capacity-constrained periods, and long-term availability should be verified against program lifecycles, though Microchip maintains active support for established defense platforms.