HLT-F Fuse Block Equivalent & Substitute Parts

Part Overview

The HLT-F is a 15A 125V indicating fuse block designed for panel mount PCB applications. Manufactured by Eaton - Bussmann Electrical Division, this component is classified as obsolete. The HLT-F serves as a circuit protection and indication device in electrical systems requiring blade fuse technology with visual fault indication. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing system maintenance and new design implementations.

Substiute Parts

HLT-F

Eaton - Bussmann Electrical DivisionIn Stock: 1075HLT-F Datasheet

Current PartRFQ

BK/HLT-F

Eaton - Bussmann Electrical DivisionIn Stock: 877BK/HLT-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HLT-F is determined by strict equivalence across the following critical parameters:

• Current Rating: 15 A (exact match required)
• Voltage Rating: 125V (exact match required)
• Fuse Size: 0.689" L x 0.127" W x 0.81" H (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Termination Style: PC Pin (exact match required)
• Fuse Type: Indicating Fuse (exact match required)
• Fuseholder Type: Block (exact match required)
• Contact Material: Copper (exact match required)
• Contact Finish: Tin (exact match required)
• Orientation: Vertical (exact match required)

The substitute part BK/HLT-F meets all these criteria and is manufactured by the same supplier, ensuring mechanical and electrical compatibility with applications originally designed for the HLT-F.

Parameter Comparison

Engineering Selection Recommendations

The BK/HLT-F is the direct functional equivalent for the obsolete HLT-F. Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the HLT-F is obsolete while the BK/HLT-F maintains active production status.

The BK/HLT-F offers additional compliance advantages, including RoHS compliance certification, which may be required for new designs or systems subject to environmental regulations. Both components are manufactured by Eaton - Bussmann Electrical Division, ensuring consistent quality and performance standards.

For applications currently using the HLT-F, direct substitution with BK/HLT-F is appropriate without design modification. The bulk packaging of BK/HLT-F accommodates both replacement and new production requirements.

Frequently Asked Questions (FAQ)

Q: Can BK/HLT-F be used as a direct replacement for HLT-F?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including current rating (15 A), voltage rating (125V), fuse size, mounting configuration, and termination style. Direct substitution is appropriate for existing applications.

Q: What is the difference between HLT-F and BK/HLT-F?

A: The primary differences are product status and packaging. HLT-F is obsolete; BK/HLT-F is active production. BK/HLT-F is supplied in bulk packaging and carries RoHS compliance certification. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting BK/HLT-F for HLT-F?

A: No compatibility concerns exist. Both components conform to the same dimensional specifications, electrical ratings, and mounting requirements. PCB layouts and circuit designs require no modification.

Q: What does "Indicating Fuse" mean in the context of the HLT-F?

A: An indicating fuse provides visual confirmation of fuse status. The HLT-F block includes circuit indication functionality, allowing operators to identify blown fuses without removing the component from the circuit.

Q: Is RoHS compliance relevant for HLT-F replacement decisions?

A: RoHS compliance is relevant for new designs and systems subject to environmental regulations. The BK/HLT-F carries RoHS compliance certification, while the obsolete HLT-F does not specify this status. For regulated applications, BK/HLT-F is the appropriate selection.

Q: What is the significance of "PC Pin" termination?

A: PC Pin termination indicates the component is designed for direct insertion into printed circuit board holes, providing secure mechanical and electrical connection through solder joints. This termination style is standard for panel mount fuse blocks in PCB applications.