The Littelfuse PolySwitch team has developed the nanoASMDC, an automotive-specific version of their PPTC devices. These products are qualified and sold under the PS400 specification which is derived from AEC-Q200, the standard for electronic components used in the automotive industry. The key difference between these product families and other protection devices in the Littelfuse circuit protection product portfolio is the qualification process that is followed which includes a series of rigorous tests related to the automotive environment. As a result, they are characterized by specific additional values determined following automotive-related testing.
Helpful links:
- Innovative Circuit Protection Solutions
- Automotive Devices Quick Reference Application Guide
- Automobile Harness Protection Application Note
- PolySwitch Automotive Catalog
Features
- RoHS compliant
- Overcurrent and overvoltage circuit protection devices
- Resettable and single-use overcurrent devices
- Wide range of form factor and termination methods
- Products meet applicable automotive industry standards
- Devices compatible with high-volume electronics assembly
Applications
- Motor and motor circuit protection including power door-locks, mirrors, lumbar pumps, seats, sunroofs, and windows
- Electronic control unit (ECU) I/O protection
- Heating, ventilation, and cooling (HVAC) motor and I/O protection
- Telematics, infotainment, and navigations systems
- Liquid crystal display (LCD) back-light heaters
- Power and cigarette lighter outlets, plugs, and adapter/chargers
- Powered networks and buses
- Air-flow detection and overcurrent protection in HVAC and cooling fan systems
- Stall detection in express window and sunroof circuits
- Resettable overcurrent protection for power distribution, electrical centers, and junction boxes
- Wire downsizing
- Motor electromagnetic interference (EMI) suppression
- Electrostatic discharge (ESD) damage protection
- Load dump and other transient voltage protection
