AHS120-2

$0.65

Description：PTC RESET FUSE 16V 1.2A 2SMD
Series：PolySwitch®, AHS
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:add40b903f3d Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

AHS120-2 is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 16V 1.2A 2SMD. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for AHS120-2

Description：PTC RESET FUSE 16V 1.2A 2SMD
Series：PolySwitch®, AHS
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Polymeric
Voltage - Max：16V
Current - Hold (Ih) (Max)：1.2 A
Current - Trip (It)：2.3 A
Current - Max：50 A
Time to Trip：2 s
Resistance - Initial (Ri) (Min)：150 mOhms
Resistance - Post Trip (R1) (Max)：340 mOhms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 125°C
Grade：Automotive
Qualification：AEC-Q200
Ratings：-
Mounting Type：Surface Mount
Package / Case：2-SMD
Size / Dimension：0.290" L x 0.202" W (7.36mm x 5.12mm)
Height - Seated (Max)：-
Thickness (Max)：0.118" (3.00mm)
Lead Spacing：-

Ptc Resettable Fuses datasheet and documents for AHS120-2

AHS120-2

Ptc Resettable Fuses Overview

The Littelfuse AHS120-2 is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse designed for high-temperature automotive applications. It belongs to the AHS series and holds AEC-Q200 qualification. The device features a hold current of 1.2A and a trip current of 2.3A, with a maximum voltage rating of 16VDC. It operates within a temperature range of -40°C to +125°C and has a maximum resistance of 150mΩ. The component is housed in a 2920 (7450 metric) package and supports a maximum fault current of 50A.

Ptc Resettable Fuses Feature Summary

Self-resetting overcurrent protection utilizing PPTC technology
Qualified for automotive secondary circuit environments per AEC-Q200 standards
Designed for high-temperature operation up to 125°C
Surface-mount construction optimized for automated assembly

Ptc Resettable Fuses Applications

Automotive secondary circuit protection
Compact auto-electronics power lines
High-temperature electronic subsystems requiring resettable fusing

Ptc Resettable Fuses Procurement Notes

Verify that the specific order matches the AHS120-2 part number to ensure correct electrical ratings. Confirm AEC-Q200 compliance requirements are met for the target application. Check datasheet specifications for hold and trip currents against circuit design limits. Ensure surface-mount footprint compatibility with PCB layout constraints.

Ptc Resettable Fuses Selection Notes

Select this component when automotive-grade resettable fusing is required for low-voltage circuits. The 1.2A hold current suits moderate load protection needs. The 16VDC rating limits suitability to specific low-voltage automotive domains. High-temperature tolerance makes it appropriate for engine compartments or near heat sources.

Ptc Resettable Fuses Part Context

The AHS120-2 is part of Littelfuse’s AHS series of high-temperature SMD PPTC devices. This series targets automotive electronics where standard components may fail due to thermal stress. The AHS line provides resettable alternatives to traditional one-time fuses in compact form factors suitable for modern vehicle architectures.