Littelfuse 0307004.H Glass Cartridge Fuse 4A 32VAC/VDC 1AG Equivalent & Substitute Parts

Part Overview

The Littelfuse 0307004.H is a fast-blow glass cartridge fuse rated for 4 amperes at 32 volts AC/DC. This component is designed for circuit protection in applications requiring the 1AG form factor (1/4" x 5/8" dimensions). The part is currently active in production with UL approval and ROHS3 compliance. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in compatible fuse holders.

Substiute Parts

0307004.H

Littelfuse Inc.In Stock: 7270307004.H Datasheet

Current PartRFQ

0SFE004.V

Littelfuse Inc.In Stock: 14170SFE004.V Datasheet

Parametric EquivalentRFQ

0SFE004.VP

Littelfuse Inc.In Stock: 11580SFE004.VP Datasheet

Parametric EquivalentRFQ

BK/SFE-4

Eaton - Electronics DivisionIn Stock: 864BK/SFE-4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0307004.H are classified based on strict equivalence of electrical and mechanical parameters. The substitution logic is determined by the following criteria:

Primary Equivalence Parameters:

• Current Rating: 4 A (exact match required)
• Voltage Rating AC: 32 V (exact match required)
• Voltage Rating DC: 32 V (exact match required)
• Package / Case: 1AG, 1/4" x 5/8" (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Requires Holder (exact match required)

Parametric Equivalents (0SFE004.V, 0SFE004.VP) meet all primary equivalence parameters and are manufactured by Littelfuse Inc. under the same SFE series designation.

Manufacturer Recommended Equivalent (BK/SFE-4) is supplied by Eaton - Electronics Division and meets all primary equivalence parameters with identical electrical ratings and mechanical form factor.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and are suitable for direct replacement in applications requiring 4A 32VDC/VAC glass cartridge fuses with 1AG form factor.

0SFE004.V and 0SFE004.VP are Littelfuse SFE series parts with identical electrical specifications and mechanical dimensions to the 0307004.H. Both maintain ROHS3 compliance. The 0SFE004.VP variant is supplied in 5-pack card packaging, while 0SFE004.V is supplied in bulk packaging.

BK/SFE-4 is manufactured by Eaton - Electronics Division and meets all primary electrical and mechanical equivalence parameters. This part carries UL approval matching the original specification. The dimensional tolerance shows a negligible difference (0.626" vs 0.625" length), which remains within acceptable mechanical clearance for standard 1AG fuse holders. However, this part is RoHS non-compliant, which may be a consideration for applications subject to RoHS regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can 0SFE004.V be used as a direct replacement for 0307004.H?

A: Yes. Both parts are rated for 4A at 32V AC/DC, use the 1AG cartridge glass form factor, and are dimensionally identical. Both are ROHS3 compliant and carry active product status.

Q: What is the difference between 0SFE004.V and 0SFE004.VP?

A: The electrical and mechanical specifications are identical. The primary difference is packaging: 0SFE004.V is supplied in bulk, while 0SFE004.VP is supplied in 5-pack card packaging. Both are suitable for direct substitution.

Q: Is BK/SFE-4 compatible with the same fuse holder as 0307004.H?

A: Yes. The BK/SFE-4 uses the same 1AG form factor with dimensions of 0.250" Dia x 0.626" L, which is mechanically compatible with standard 1AG fuse holders designed for 0.250" Dia x 0.625" L cartridges. The 0.001" length difference is negligible for holder compatibility.

Q: Does RoHS compliance matter when selecting a substitute?

A: RoHS compliance is a regulatory requirement dependent on the application and end-market. The 0307004.H, 0SFE004.V, and 0SFE004.VP are ROHS3 compliant. The BK/SFE-4 is RoHS non-compliant. Select based on your application's regulatory requirements.

Q: Are all substitute parts UL approved?

A: The 0307004.H and BK/SFE-4 carry explicit UL approval. The 0SFE004.V and 0SFE004.VP do not list approval agency information in the provided specifications.