WSFB1520

Jingwo WSFB1520 Three-Terminal Fuse (Series Lithium Battery Protection for 5)

WSFB Series 3-Terminal Fuses: Rated 15A, Max 36V DC. Compatible with 5 series lithium batteries. Integrated overcurrent and overvoltage protection.

3-terminal SMD
Power Tools, Garden Tools, and High-Cell Count Lithium Battery Packs
Jingwo three-terminal fuse

Description

Product Description

Jingwo Technology's WSFB series three-terminal fuses integrate the fuse element and heating element into a single unit. Overcurrent or overvoltage conditions trigger the heater to melt the fuse, ensuring reliable disconnection of lithium battery packs. The WSFB1520 model has a rated current of 15A, supports 5 series cells, and operates at a maximum voltage of 36V DC. It features a breaking capacity of 50A, an operating voltage range of 14.4–23.5V, a heater resistance of 17.9–29.1Ω, and a fuse resistance of 1.0–3.0mΩ. With fast response times, it is ideal for high-density surface mounting and complies with RoHS requirements.

Specifications

Voltage coverage: 23.5 – 36 V
Current coverage: 15 – 50 A

Series	WSFB
Rated Current	15 A
Compatible Cell String Count	5 string
Maximum Voltage	36 V DC
Breaking Capacity	50 A
Operating Voltage	14.4–23.5 V
Heater resistor	17.9–29.1 Ω
Fuse resistor	1.0–3.0 mΩ

The parameters shown represent general category ranges. Actual supply shall be based on the specification confirmed at the time of order.

Supply

Supply Details

Authorized by the original manufacturer; datasheets and compliance reports available.
High-cell-count battery packs can be paired with solution selection.
Battery pack solutions available for bulk supply.

Alternatives

Alternative Model

The following models are compatible alternatives with similar specifications or pinouts. Please verify details in the datasheet.

This table includes series-level reference items. Please confirm package, ratings, and fuse characteristics with engineering before bulk procurement.

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Brand

Alternative Model	Brand	Encapsulate	Rated Value	Description
ITV Series	Littelfuse	3-terminal SMD	15A3 2V DC	Three-terminal battery fuse: 15A, 32V, compatible with 5 series Li-ion batteries; overcurrent and overvoltage protection.
SF Series	Dexerials	3-terminal SMD	15A3 2V DC	3-Terminal Lithium Protection Fuse 15A, Compatible with 5 Series Battery Pack

ITV Series

LittelfuseSame packaging

Encapsulate: 3-terminal SMD
Rated Value: 15A/ 3 2V DC

Three-terminal battery fuse: 15A, 32V, compatible with 5 series Li-ion batteries; overcurrent and overvoltage protection.

SF Series

DexerialsSame packaging

Encapsulate: 3-terminal SMD
Rated Value: 15A/ 3 2V DC

3-Terminal Lithium Protection Fuse 15A, Compatible with 5 Series Battery Pack

Rated voltage for red-highlighted models is below this product's specifications. Verify actual operating voltage before replacement.

Alternative models are for reference only. Please confirm final selection based on application requirements and datasheets. For further recommendations, feel free to submit an inquiry.

Similar

Similar models within the same parameter range

The following models belong to the same product category and have similar voltage, current, and other parameter ranges for comparison during selection.