Littelfuse 028707.5H Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 028707.5H is a 7.5 A automotive blade fuse rated for 32 V DC operation. This ATO/ATC format fuse is designed for automotive electrical systems requiring holder-mounted protection. The part maintains active product status with full RoHS3 compliance and CSA/UL approvals. Substitute parts are identified to support inventory availability, supply chain continuity, and system compatibility across equivalent electrical and mechanical specifications.

Substiute Parts

028707.5H

Littelfuse Inc.In Stock: 1103028707.5H Datasheet

Current PartRFQ

028707.5PXCN

Littelfuse Inc.In Stock: 48343028707.5PXCN Datasheet

Parametric EquivalentRFQ

028707.5U

Littelfuse Inc.In Stock: 1386028707.5U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 028707.5H are qualified based on the following critical parameters that determine functional equivalence:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating - DC: 32 V (exact match required)
• Package / Case: Blade, ATO/ATC (exact match required)
• Series: ATOF® (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)
• Melting I²t: 60 (exact match required)
• Size / Dimension: 0.752" L x 0.201" W x 0.484" H (exact match required)

All identified substitutes maintain identical electrical and mechanical specifications, ensuring direct interchangeability within automotive fuse holder applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—028707.5H, 028707.5PXCN, and 028707.5U—are active products with ROHS3 compliance. Selection between these equivalents should be based on:

• Inventory availability and lead time requirements
• Approval agency requirements: 028707.5H and 028707.5PXCN carry CSA and UL approvals; 028707.5U does not list approval agencies
• Supply chain sourcing and cost considerations

The 028707.5PXCN variant offers the highest inventory availability (48,300 pcs), making it suitable for high-volume applications. The 028707.5H and 028707.5U are functionally equivalent alternatives where supply constraints exist.

Frequently Asked Questions (FAQ)

Q: Can 028707.5PXCN be used as a direct replacement for 028707.5H?

A: Yes. Both parts share identical electrical ratings (7.5 A, 32 V DC), mechanical dimensions (0.752" L x 0.201" W x 0.484" H), package format (Blade, ATO/ATC), and thermal characteristics (-40°C ~ 105°C). Direct substitution is supported.

Q: What is the difference between 028707.5U and 028707.5H?

A: Both parts are electrically and mechanically equivalent. The primary difference is that 028707.5H lists CSA and UL approvals, while 028707.5U does not specify approval agencies in the provided data. Both maintain ROHS3 compliance and identical performance specifications.

Q: Are these fuses compatible with standard ATO/ATC fuse holders?

A: Yes. All three parts are specified as Blade, ATO/ATC format and require a holder for mounting. They are compatible with standard automotive ATO/ATC fuse holder applications.

Q: What is the significance of the Melting I²t value of 60?

A: The Melting I²t of 60 defines the thermal energy required to melt the fuse element. This parameter is identical across all three substitute parts, ensuring consistent protection characteristics and response behavior in the circuit.

Q: Can I substitute these fuses in applications requiring specific approval certifications?

A: If your application requires CSA or UL certification, use 028707.5H or 028707.5PXCN. If approval certifications are not specified as a requirement, 028707.5U is functionally equivalent.