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WSFD4530 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

WSFD4530 product

WSFD4530

Component

45 A80 VDC3-terminalSMD fuseBattery protector6–7 cellsHeater-triggered protection

WSFD4530 is a 45 A, three-terminal SMD self-control fuse for secondary protection of 6–7 cell battery packs. It combines a low-resistance fuse path with an externally driven heater for permanent overvoltage disconnection.

Best for

  • 6–7 cell battery packs requiring secondary overcurrent protection
  • Battery systems using an external overvoltage sensing and heater-drive circuit

Avoid if

  • The application requires resettable protection
  • Faults may occur continuously or repeatedly
  • The pack voltage or interruption duty exceeds the stated ratings

Check before use

  • Validate interruption behavior in the actual pack and wiring system
  • Confirm external heater-drive power and timing
  • Follow the recommended solder profile and PCB layout

Key specifications

Rated current
45 A
Maximum interrupt voltage
80 VDC
Breaking current
120 A
Operating voltage
22.3–31.5 V
Fuse resistance
0.5–2.0 mΩ
Package size
9.50 mm × 5.00 mm × 2.00 mm

Compliance & Environment

RoHS
RoHS compliant
REACH
REACH compliant
MSL
-
ECCN
-
HTSUS
-

Application

Battery-pack secondary protectionPortable and industrial battery systems

Datasheet

f15f0914e62500e9d19836a86a48a658_WSFD4530.pdf

800 KB

Datasheet AI

CAD Models

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EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

WSFD4530 is a three-terminal surface-mount self-control fuse from TLC for battery protection. It uses a main fuse element for overcurrent interruption and a resistive heater element that can be activated by external sensing and switching circuitry for overvoltage protection.