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Product Detailed Parameters
- Description：POLYSWITCH RESETTABLE PPTC
- Series：POLY-FUSE®, 0805L
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：200 mA
- Current - Trip (It)：500 mA
- Current - Max：100 A
- Time to Trip：500 ms
- Resistance - Initial (Ri) (Min)：500 mOhms
- Resistance - Post Trip (R1) (Max)：3.5 Ohms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), Concave
- Size / Dimension：0.083" L x 0.053" W (2.10mm x 1.35mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.030" (0.75mm)
- Lead Spacing：-
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Overview
The Littelfuse 0805L020/16YR is a surface-mount PolySwitch resettable PTC fuse from the 0805L series. It features a maximum voltage rating of 16 VDC and a hold current of 200 mA. The trip current is specified at 400 mA with a typical trip time of 2 seconds. The device has a maximum resistance of 0.35 Ohms and an interrupting rating of 100 A. It operates within a temperature range of -40°C to +85°C, dissipates 0.5 W, and measures 2.0 mm in length, 1.25 mm in width, and 0.75 mm in height.
Feature Summary
- Provides automatic overcurrent protection by increasing resistance during fault conditions
- Enables circuit recovery without manual replacement after the fault clears
- Designed for surface-mount assembly on printed circuit boards
Applications
- Protection of portable electronic devices
- Overcurrent safeguarding in battery-powered equipment
- Circuit protection for telecommunications hardware
- Safety compliance in consumer electronics power lines
Procurement Notes
Verify the specific suffix '16YR' against official Littelfuse documentation to confirm the exact voltage and package variant. Ensure the selected component matches the required 16 VDC rating and 200 mA hold current specifications for the target application design.
Selection Notes
Select this component based on the 16 VDC maximum voltage and 200 mA hold current requirements. Evaluate the 0.35 Ohm maximum resistance and 100 A interrupting rating to ensure compatibility with the circuit's fault current capabilities and thermal management needs.
Part Context
This part belongs to the Littelfuse 0805L series of PolySwitch resettable fuses. These components are designed for surface-mount applications, offering compact protection solutions that replace traditional fusible links in modern electronic assemblies requiring reliable overcurrent safety.
Replacement Considerations
Compatible substitutes include the 0805L020HFV and 0805L020WVR variants. Verify that alternative parts match the 16 VDC voltage rating and 200 mA hold current specifications before implementation.
