Equivalent & Substitute Parts for 5HFP 800

Part Overview

The 5HFP 800 is an 800 mA, 250 V AC/DC ceramic cartridge fuse with a 5mm x 20mm axial form factor, designed for through-hole mounting applications. Manufactured by Bel Fuse Inc., this component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing system support and new designs. The fuse features fast-blow response characteristics and is rated for breaking capacity of 1.5 kA at rated voltage, with operating temperature range of -55°C to 125°C.

Substiute Parts

5HFP 800

Bel Fuse Inc.In Stock: 11175HFP 800 Datasheet

Current PartRFQ

5HF 1-R

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

DirectRFQ

5HFP 800-R

Bel Fuse Inc.In Stock: 20025HFP 800-R Datasheet

DirectRFQ

0216.800MXEP

Littelfuse Inc.In Stock: 16980216.800MXEP Datasheet

DirectRFQ

0001.1003.PT

SCHURTER Inc.In Stock: 23030001.1003.PT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5HFP 800 is determined by the following critical parameters:

Primary Substitution Criteria:

• Current Rating: 800 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic
• Package / Case: 5mm x 20mm (Axial)
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 1.5 kA

Direct Equivalents maintain identical electrical and mechanical specifications with active product status. These parts are sourced from Bel Fuse Inc., Littelfuse Inc., and SCHURTER Inc., all meeting the core dimensional and electrical requirements.

Secondary Consideration: The 5HF 1-R represents a higher current rating variant (1 A versus 800 mA) and requires holder mounting rather than through-hole mounting. This part is included due to explicit listing in the substitute field but does not meet the primary substitution criteria for direct replacement in applications requiring 800 mA protection.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (800 mA, 250 V AC/DC):

The 5HFP 800-R is the primary recommended substitute. As an active product from the original manufacturer (Bel Fuse Inc.), it maintains identical electrical and mechanical specifications to the obsolete 5HFP 800, including current rating, voltage rating, package dimensions, and mounting configuration. The 5HFP 800-R carries ROHS3 compliance and expanded approval certifications (cULus added), providing enhanced regulatory coverage for new designs.

The 0216.800MXEP (Littelfuse Inc.) and 0001.1003.PT (SCHURTER Inc.) are functionally equivalent alternatives meeting all primary substitution criteria. Both are active products with ROHS3 compliance. The 0216.800MXEP offers broader approval agency coverage (CCC, CE, CSA, SEMKO, UL, VDE), while the 0001.1003.PT carries cURus certification. Dimensional variations exist within the 5mm x 20mm form factor specification, with the 0216.800MXEP measuring 6.00mm diameter and the 0001.1003.PT measuring 5.40mm diameter.

For Higher Current Applications (1 A, 250 V AC/DC):

The 5HF 1-R is not a direct replacement due to higher current rating (1 A versus 800 mA) and different mounting requirement (requires holder versus through-hole). This part is suitable only for applications where 1 A protection is specified and holder-based mounting is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the 5HFP 800-R be used as a direct replacement for the obsolete 5HFP 800?

A: Yes. The 5HFP 800-R maintains identical electrical specifications (800 mA, 250 V AC/DC), fuse type (ceramic cartridge), package dimensions (5mm x 20mm axial), and mounting configuration (through-hole). Both parts have identical melting I²t values (0.36) and breaking capacity (1.5 kA). The primary difference is product status (active versus obsolete) and enhanced regulatory compliance (ROHS3 compliant).

Q: What are the differences between the Littelfuse 0216.800MXEP and Bel Fuse 5HFP 800-R?

A: Both parts meet the core electrical requirements (800 mA, 250 V, 1.5 kA breaking capacity, fast-blow response). Differences include: manufacturer (Littelfuse versus Bel Fuse), melting I²t value (0.285 versus 0.36), DC cold resistance (0.295 versus 0.206 ohms), physical dimensions (6.00mm diameter versus 5.50mm diameter), and approval agency certifications. The 0216.800MXEP has broader UL/VDE coverage; the 5HFP 800-R has cULus certification.

Q: Can the 5HF 1-R substitute for the 5HFP 800?

A: No, not as a direct replacement. The 5HF 1-R has a higher current rating (1 A versus 800 mA) and requires holder-based mounting rather than through-hole mounting. Use this part only in applications specifically designed for 1 A protection with holder-compatible sockets.

Q: Are all substitute parts ROHS3 compliant?

A: The 5HFP 800 is RoHS non-compliant. All active substitute parts (5HFP 800-R, 0216.800MXEP, 0001.1003.PT, and 5HF 1-R) are ROHS3 compliant, meeting current environmental regulations for new designs and manufacturing.

Q: What is the significance of the melting I²t and DC cold resistance differences?

A: Melting I²t and DC cold resistance are thermal and electrical characteristics that affect fuse response behavior. The 5HFP 800 and 5HFP 800-R have identical I²t values (0.36), ensuring equivalent thermal response. The 0216.800MXEP (0.285) and 0001.1003.PT (0.469) have different I²t values, which may affect response time characteristics in specific circuit conditions. DC cold resistance variations (0.15 to 0.295 ohms) impact circuit voltage drop and power dissipation. Verify these parameters against circuit design requirements before substitution.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring 800 mA, 250 V protection with through-hole mounting, select based on approval agency requirements and supply chain availability. The 5HFP 800-R (Bel Fuse) is recommended for continuity with the original design. The 0216.800MXEP (Littelfuse) is suitable for applications requiring UL/VDE certifications. The 0001.1003.PT (SCHURTER) is suitable for applications requiring cURus certification. All three are active products with ROHS3 compliance.