Equivalent & Substitute Parts for 5HF 4 Ceramic Fuse

Part Overview

The 5HF 4 is a 4 A, 250 V AC/DC ceramic cartridge fuse manufactured by Bel Fuse Inc. in a 5mm x 20mm form factor. This part is classified as obsolete, requiring identification of active equivalent alternatives for ongoing circuit protection applications. Substitute parts must maintain identical electrical ratings, breaking capacity, and mechanical dimensions to ensure direct functional compatibility in fuse holder assemblies.

Key Parameters

Parameter	Value
Current Rating	4 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	1.5 kA
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Requires Holder

Substitute Part Grouping Explanation

Substitution eligibility for the 5HF 4 is determined by strict equivalence across the following parameters:

Current Rating: 4 A (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Fast Blow (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Breaking Capacity: 1.5 kA (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these criteria. Parametric equivalents from Bel Fuse Inc. (5HF 4-R) and similar parts from SCHURTER Inc., Littelfuse Inc., and Eaton - Electronics Division maintain full electrical and mechanical compatibility with the original 5HF 4 specification.

Parameter Comparison

Manufacturer	Part Number	Current Rating (A)	Voltage Rating (V AC)	Response Time	Package	Breaking Capacity (kA)	Product Status	RoHS Status
Bel Fuse Inc.	5HF 4	4	250	Fast Blow	5mm x 20mm	1.5	Obsolete	Non-compliant
Bel Fuse Inc.	5HF 4-R	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Bel Fuse Inc.	5HFP 4-R	4	250	Fast Blow	5mm x 20mm (Axial)	1.5	Active	ROHS3 Compliant
SCHURTER Inc.	0001.1010	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Littelfuse Inc.	0216004.HXP	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Littelfuse Inc.	0216004.MXBP	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Littelfuse Inc.	0216004.MXP	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Littelfuse Inc.	0216004.TXP	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Littelfuse Inc.	0216004.VXP	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant
Eaton - Electronics Division	GDA-4A	4	250	Fast Blow	5mm x 20mm	1.5	Active	Not specified
Eaton - Electronics Division	S501-4-R	4	250	Fast Blow	5mm x 20mm	1.5	Active	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using the obsolete 5HF 4, the following selection criteria apply:

Primary Recommendation: 5HF 4-R (Bel Fuse Inc.) provides direct parametric equivalence with identical mechanical form factor and electrical characteristics. This part is active, ROHS3 compliant, and maintains the same series designation, minimizing design validation requirements.

Alternative Selections: Littelfuse Inc. 216 series parts (0216004.HXP, 0216004.MXBP, 0216004.MXP, 0216004.TXP, 0216004.VXP) and Eaton S501-4-R offer equivalent electrical performance with active product status and ROHS3 compliance. These alternatives carry broader international certification coverage including UL, VDE, and CSA approvals.

Mounting Consideration: The 5HFP 4-R variant features through-hole axial mounting, differing from the holder-based mounting of the original 5HF 4. This part is suitable only for applications with compatible through-hole fuse holder assemblies.

Compliance Note: All recommended active substitutes are ROHS3 compliant, addressing regulatory requirements for new designs and production transitions.

Frequently Asked Questions (FAQ)

Q: Can the 5HFP 4-R replace the 5HF 4 directly in existing assemblies?

A: The 5HFP 4-R has identical electrical ratings and breaking capacity but differs in mounting type. It requires through-hole fuse holder compatibility. The 5HF 4-R is the direct mechanical and electrical equivalent for existing holder-based assemblies.

Q: What is the difference between Littelfuse 0216004.HXP, 0216004.MXBP, 0216004.MXP, 0216004.TXP, and 0216004.VXP?

A: All five Littelfuse parts share identical electrical specifications (4 A, 250 V, 1.5 kA breaking capacity, fast blow response). Designations reflect internal manufacturing or packaging variations. Selection among these variants depends on supplier availability and packaging requirements.

Q: Are there differences in melting I²t values between substitutes?

A: Melting I²t values vary slightly across manufacturers. The 5HF 4 specifies 22, while Littelfuse parts specify 14.995, SCHURTER 0001.1010 specifies 12.6, and Eaton parts specify 14. These variations remain within acceptable tolerance for fast-blow ceramic fuse applications at the specified 4 A rating.

Q: Which substitute offers the broadest international certification coverage?

A: Littelfuse 216 series parts carry certifications from CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE. Eaton S501-4-R includes BSI, CCC, CSA, cURus, IMQ, MITI/JET, SEMKO, and VDE. Both provide comprehensive global compliance for industrial and consumer applications.

Q: Is the 5HF 4-R suitable for new product designs?

A: Yes. The 5HF 4-R is active, ROHS3 compliant, and maintains full parametric equivalence with the original 5HF 4. It is appropriate for both legacy replacement and new design implementation.

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