WSFB1208
Jingwo WSFB1208 Three-Terminal Fuse (Series Lithium Battery Protection for 2)
WSFB series three-terminal fuses, rated 12A and up to 36V DC for 2 series Li-ion batteries. Features integrated overcurrent and overvoltage protection; ideal for high-density SMT applications.
- 3-terminal SMD
- Laptop, tablet, vacuum cleaner, robot vacuum, and power tool battery packs
- Jingwo three-terminal fuse
Product Description
Jingwo Technology's WSFB series three-terminal fuses integrate the fuse element and heater into a single unit. The heater triggers the fuse during overcurrent or overvoltage events to reliably disconnect lithium battery packs. The WSFB1208 model features a rated current of 12A, supports 2 series cells, and operates at up to 36V DC. It offers a breaking capacity of 50A, with heater resistance ranging from 2.0–3.2Ω and fuse resistance from 1.5–3.5mΩ. Designed for fast response and high-density surface mounting, it is RoHS compliant.
Specifications
| Series | WSFB |
|---|---|
| Rated Current | 12 A |
| Compatible Cell String Count | 2 string |
| Maximum Voltage | 36 V DC |
| Breaking Capacity | 50 A |
| Operating Voltage | 4.0–9.0 V |
| Heater resistor | 2.0–3.2 Ω |
| Fuse resistor | 1.5–3.5 mΩ |
The parameters shown represent general category ranges. Actual supply shall be based on the specification confirmed at the time of order.
Supply Notes
- Authorized by the original manufacturer; datasheets and compliance reports available.
- Lithium battery protection solutions available for selection and prototyping.
- Battery pack solutions available for bulk supply.
Alternative Models
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.
ITV Series
- Package
- 3-terminal SMD
- Rating
- 12A/ 3 2V DC
Three-bank battery fuse, selectable as 12A/15A/22A; rated at 32V. Integrated heater enables overcurrent and overvoltage cutoff. Select based on the number of series cells.
SF Series
- Package
- 3-terminal SMD
- Rating
- 12A/ 3 2V DC
3-terminal lithium battery protection fuse, 1 2A rating; verify based on battery cell count and operating voltage.
The highlighted alternative has a lower voltage rating than this product. Verify the operating voltage before substitution.
Alternative models are for reference only. Confirm actual selection based on application requirements and datasheets. For further suggestions, submit an inquiry.
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