Bel Fuse Inc. 5HF 8 Ceramic Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Bel Fuse Inc. 5HF 8 is an 8 A, 250 V AC/DC ceramic cartridge fuse in 5mm x 20mm form factor with fast-blow response characteristics. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The fuse requires a compatible holder for installation and is designed for general-purpose circuit protection applications across industrial and commercial equipment.

Key Parameters

Parameter	Value
Current Rating	8 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Package / Case	5mm x 20mm
Response Time	Fast Blow
Breaking Capacity @ Rated Voltage	1.5 kA
Operating Temperature Range	-55°C to 125°C
Mounting Type	Requires Holder

Substitute Part Grouping Explanation

Substitution eligibility for the 5HF 8 is determined by strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Current Rating: 8 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Fast Blow (exact match required)
Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)

All substitute parts listed meet these criteria. Variations in secondary parameters such as melting I²t, DC cold resistance, and dimensional tolerances (within 5mm x 20mm specification) do not disqualify substitution eligibility when primary electrical and mechanical parameters align.

Parameter Comparison

Part Number	Manufacturer	Current Rating (A)	Voltage Rating (V AC)	Package	Response Time	Breaking Capacity (kA)	Operating Temp (°C)	Product Status	RoHS Status
5HF 8	Bel Fuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Obsolete	Non-compliant
5HF 8-R	Bel Fuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant
0001.1013	SCHURTER Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant
0216008.MXBP	Littelfuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant
0216008.MXP	Littelfuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant
0216008.TXP	Littelfuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant
0216008.VXP	Littelfuse Inc.	8	250	5mm x 20mm	Fast Blow	1.5	-55 to 125	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: 5HF 8-R (Bel Fuse Inc.)

The 5HF 8-R is the direct active-production equivalent of the obsolete 5HF 8. Both parts share identical electrical and mechanical specifications. The 5HF 8-R carries ROHS3 compliance and maintains active product status with 13,177 units in stock, making it the preferred choice for direct replacement in existing designs and new applications.

Secondary Recommendations: SCHURTER 0001.1013 and Littelfuse 0216008 Series

SCHURTER 0001.1013 and the Littelfuse 0216008 series (MXBP, MXP, TXP, VXP variants) meet all primary substitution criteria. These parts are manufactured by established suppliers with active product status and ROHS3 compliance. Selection among these alternatives depends on supply chain availability, procurement lead times, and existing supplier relationships. All variants maintain identical electrical performance and mechanical compatibility with the 5HF 8 specification.

Compliance Considerations:

All recommended substitutes carry ROHS3 compliance, addressing regulatory requirements that the original 5HF 8 (non-compliant) does not satisfy. Approval agencies vary by manufacturer but include CE, CSA, PSE, and other recognized certifications across all substitute options.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the 5HF 8?

A: Yes. All listed substitute parts meet the identical electrical and mechanical specifications: 8 A, 250 V AC, 5mm x 20mm ceramic cartridge fuse with fast-blow response and 1.5 kA breaking capacity. Physical installation and electrical performance are equivalent.

Q: What is the difference between the Littelfuse 0216008 variants (MXBP, MXP, TXP, VXP)?

A: All four Littelfuse variants (0216008.MXBP, 0216008.MXP, 0216008.TXP, 0216008.VXP) share identical electrical and mechanical parameters. Variant designations reflect internal manufacturing or packaging differences that do not affect functional compatibility with the 5HF 8 specification.

Q: Why is the original 5HF 8 marked as obsolete?

A: The 5HF 8 is classified as obsolete, indicating it is no longer in active production. The 5HF 8-R serves as the active-production replacement with equivalent specifications and improved compliance status.

Q: Are there any differences in melting I²t or DC cold resistance between substitutes?

A: Secondary parameters such as melting I²t and DC cold resistance vary slightly among manufacturers (ranging from 64.315 to 126 for I²t, and 0.009 to 0.0123 Ohms for DC resistance). These variations remain within acceptable tolerances for the 8 A, 250 V fast-blow cartridge fuse category and do not affect substitution eligibility.

Q: Do all substitute parts require the same holder as the 5HF 8?

A: Yes. All substitute parts are 5mm x 20mm ceramic cartridge fuses requiring a compatible holder. Existing 5mm x 20mm fuse holders are compatible with all listed substitutes.

Q: Which substitute offers the best supply availability?

A: The 5HF 8-R (Bel Fuse Inc.) has the highest inventory level at 13,177 units in stock, followed by 0216008.MXP (Littelfuse) with 2,382 units. Both represent strong supply positions for immediate procurement.

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