Equivalent & Substitute Parts for 5HF 1 Ceramic Fuse

Part Overview

The 5HF 1 is a 1 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 and requires a fuse holder for installation. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary to maintain system functionality and ensure continued availability for replacement applications.

Substiute Parts

5HF 1

Bel Fuse Inc.In Stock: 7725HF 1 Datasheet

Current PartRFQ

5HFP 1-R

Bel Fuse Inc.In Stock: 30405HFP 1-R Datasheet

DirectRFQ

5HF 1-R

Bel Fuse Inc.In Stock: 177045HF 1-R Datasheet

Parametric EquivalentRFQ

0216001.HXP

Littelfuse Inc.In Stock: 10210216001.HXP Datasheet

SimilarRFQ

0216001.MXBP

Littelfuse Inc.In Stock: 11200216001.MXBP Datasheet

SimilarRFQ

0216001.MXGP

Littelfuse Inc.In Stock: 11160216001.MXGP Datasheet

SimilarRFQ

0216001.MXP

Littelfuse Inc.In Stock: 131840216001.MXP Datasheet

SimilarRFQ

0216001.TXP

Littelfuse Inc.In Stock: 8540216001.TXP Datasheet

SimilarRFQ

0216001.VXP

Littelfuse Inc.In Stock: 9600216001.VXP Datasheet

SimilarRFQ

BK1/S501-1-R

Eaton - Electronics DivisionIn Stock: 2864BK1/S501-1-R Datasheet

SimilarRFQ

GDA-1A

Eaton - Electronics DivisionIn Stock: 772GDA-1A Datasheet

SimilarRFQ

S501-1-R

Eaton - Electronics DivisionIn Stock: 1099S501-1-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5HF 1 is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Fast Blow (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. Variations in melting I²t, DC cold resistance, and dimensional tolerances within the 5mm x 20mm envelope do not preclude substitution, as these parameters remain within acceptable operating ranges for the specified electrical ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5HF 1-R (Bel Fuse Inc.)

The 5HF 1-R is the direct parametric equivalent from the same manufacturer as the obsolete 5HF 1. It maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. This part is the preferred choice for direct replacement in existing designs.

Secondary Recommendations: Littelfuse 216 Series (0216001.HXP, 0216001.MXBP, 0216001.MXGP, 0216001.MXP, 0216001.TXP, 0216001.VXP)

All Littelfuse 216 series parts meet the electrical and mechanical requirements of the 5HF 1. These parts are active, ROHS3 compliant, and carry comprehensive approval certifications including CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE. Selection among these variants depends on specific application requirements and availability.

Tertiary Recommendations: Eaton S501 and GDA Series (BK1/S501-1-R, GDA-1A)

Eaton parts meet all electrical and mechanical parameters and are active products. BK1/S501-1-R carries ROHS3 compliance and cURus certification. GDA-1A is SEMKO and UR certified. These options are suitable where Eaton supply chain integration is preferred.

Mounting Type Consideration:

The 5HFP 1-R differs from the 5HF 1 in mounting type (Through Hole vs. Requires Holder). This part is not a direct substitute for applications requiring a fuse holder but may be considered for designs that can accommodate axial through-hole mounting.

Frequently Asked Questions (FAQ)

Q: Can I use 5HFP 1-R as a direct replacement for 5HF 1?

A: No. The 5HFP 1-R is designed for through-hole mounting with axial leads, while the 5HF 1 requires a separate fuse holder. Physical installation differs significantly. Use 5HF 1-R or equivalent holder-type fuses for direct replacement.

Q: What is the difference between the various Littelfuse 216 series parts (MXBP, MXGP, MXP, TXP, VXP)?

A: All Littelfuse 216 series parts listed meet identical electrical and mechanical specifications for the 5HF 1 application. Differences are in internal construction and response characteristics. Selection should be based on application-specific requirements and availability.

Q: Are all substitute parts RoHS compliant?

A: Most substitute parts are ROHS3 compliant. The original 5HF 1 is RoHS non-compliant. The 5HF 1-R, all Littelfuse 216 series parts, and BK1/S501-1-R are ROHS3 compliant. GDA-1A compliance status is not specified in available data.

Q: What certifications should I verify for my application?

A: All substitute parts carry multiple approval certifications. Common certifications across all parts include CCC, CE, CSA, PSE, SEMKO, and UL/cULus variants. Verify that the selected part carries certifications required by your specific application and regional standards.

Q: Can I mix different manufacturers' fuses in the same circuit?

A: Yes, provided all parts meet the identical electrical specifications (1 A, 250 V AC, 1.5 kA breaking capacity, fast blow response). However, maintain consistency within a single circuit or system where possible to ensure uniform protection characteristics.

Q: What is the significance of melting I²t values?

A: Melting I²t indicates the thermal energy required to melt the fuse element. The 5HF 1 specifies 0.65, while Littelfuse and Eaton parts specify lower values (0.18 and 0.146 respectively). These differences remain within acceptable operating ranges for the 1 A, 250 V rating and do not preclude substitution.

Q: Are dimensional tolerances critical for fuse holder compatibility?

A: Yes. All substitute parts maintain the 5mm x 20mm package specification. Minor dimensional variations (e.g., 5.10mm vs. 5.20mm diameter) are within standard fuse holder tolerances and do not affect mechanical fit or electrical performance.