Microchip Technology has launched a new family of military-qualified transient voltage suppressor devices designed for aerospace and defence applications, marking what it says is an industry first for plastic-packaged components.
The JANPTX family of non-hermetic plastic TVS devices meets the MIL-PRF-19500 qualification, offering engineers a lighter-weight and potentially lower-cost alternative to traditional hermetic packages while maintaining military performance requirements. The devices are available in working voltage ranges from 5 V to 175 V.
Designed for surface-mount applications, the unidirectional TVS devices provide protection against voltage transients such as lightning strikes, electrostatic discharge, and electrical surges. Microchip states that the devices offer a peak pulse power rating of 1.5 kW and clamping response times of less than 100 picoseconds in internal testing.
The company positions the JANPTX range for use in airborne avionics, electrical systems, and other mission-critical electronics where low voltage operation and high reliability are required. The devices are also designed to address switching transients, induced radio-frequency effects, electromagnetic pulse events, and secondary lightning exposure.
Compliance with IEC61000-4-2, IEC61000-4-4, and IEC61000-4-5 standards is intended to support deployment in harsh electrical environments typical of aerospace and defence platforms. Equivalent hermetic package options are also available for designers requiring alternative form factors.
Each device weighs approximately 0.25 grams, supporting efforts to reduce system weight in aerospace applications. Microchip highlights controlled manufacturing, full traceability, and extended testing as part of its wider high-reliability offering for defence and aerospace customers.
The JANPTX devices are supported by SPICE models, enabling engineers to simulate circuit behaviour during design and reduce reliance on physical prototyping. Microchip says the combination of qualification, performance, and packaging flexibility is intended to simplify the development of protected, mission-critical electronic systems.
