POLYSWITCH RESETTABLE
DEVICES
Automotive Devices
We have provided PPTC resettable devices for the
automotive industry for over 25 years. With the
advent of TS16949 and our continued involvement in
the automotive industry, Littelfuse PolySwitch team
developed automotive-specific versions of PPTC devices
(femtoASMDC, picoASMDC, nanoASMDC, microASMD,
miniASMDC, ASMDC, nanoASMDCH, AHS, ASMD, AHRF,
AHEF and AGRF). 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 our
circuit protection product portfolio is the qualification
process that is followed that 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.
BENEFITS
• Expertise from the world’s leading resettable
overcurrent protection manufacturer
• High-quality products from the world’s largest
passive component manufacturer
• Worldwide team dedicated to support
automotive applications
• Wide range of dedicated automotive surface-mount
and radial-leaded resettable overcurrent devices
• High-performance transient voltage
protection devices
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
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
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Specifications subject to change without notice. ©2017 Littelfuse, Inc.
RoHS Compliant, ELV Compliant
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