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SF139U-1 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SF139U-1SEFUSE199Yes

SF139U-1** is a thermal fuse manufactured by **SEFUSE**.

The SF139U-1 is a thermal fuse manufactured by SEFUSE. Below are its specifications, descriptions, and features:

Specifications:

  • Rated Temperature: 139°C (±5°C)
  • Rated Current: 10A
  • Rated Voltage: 250V AC
  • Holding Temperature Range: Up to 139°C
  • Operating Temperature Range: -10°C to +150°C
  • Fuse Type: One-time thermal cutoff (non-resettable)
  • Terminal Type: Lead wire (standard length may vary)
  • Material: Flame-retardant casing

Descriptions:

The SF139U-1 is a thermal cutoff fuse designed to protect electrical devices from overheating by interrupting the circuit when a preset temperature (139°C) is exceeded. It is commonly used in appliances, power tools, transformers, and other electronic equipment requiring thermal protection.

Features:

  • Precision Temperature Response: Ensures reliable cutoff at 139°C.
  • High Current Capacity: Supports up to 10A.
  • Compact Design: Suitable for space-constrained applications.
  • Non-Resettable: Must be replaced after activation.
  • Compliance: Meets safety standards for thermal protection devices.

For exact dimensions and lead wire specifications, refer to the manufacturer's datasheet.

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