Equivalent & Substitute Parts for 0678H5000-22

Part Overview

The 0678H5000-22 is a 5 A, 250 V AC / 125 V DC surface mount board mount fuse manufactured by Bel Fuse Inc. This component is classified as an active product and is designed for applications requiring overcurrent protection in surface mount configurations. The fuse features a 2-SMD square end block package with a breaking capacity of 300 A AC and 2 kA DC. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and package specifications are maintained across the product line.

Substiute Parts

0678H5000-22

Bel Fuse Inc.In Stock: 6800678H5000-22 Datasheet

Current PartRFQ

0678H5000-02

Bel Fuse Inc.In Stock: 141660678H5000-02 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0678H5000-22 is determined by strict equivalence across the following critical parameters:

• Current Rating: 5 A (exact match required)
• Voltage Ratings: 250 V AC and 125 V DC (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Package Configuration: 2-SMD, Square End Block (exact match required)
• Physical Dimensions: 0.386" L x 0.120" W x 0.120" H (exact match required)
• Breaking Capacity: 300 A AC, 2 kA DC (exact match required)
• DC Cold Resistance: 0.016 Ohms (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Melting I²t: 10 (exact match required)

The substitute part 0678H5000-02 meets all these criteria and is therefore electrically and mechanically interchangeable with the 0678H5000-22.

Parameter Comparison

Engineering Selection Recommendations

Both the 0678H5000-22 and 0678H5000-02 are active products from Bel Fuse Inc. and maintain identical electrical and mechanical specifications. The primary distinction lies in regulatory approvals and certifications:

• 0678H5000-22 carries cURus and TUV approvals
• 0678H5000-02 carries AEC-Q200 and cURus approvals

Selection between these parts should be based on the specific regulatory and certification requirements of the target application. Both parts are ROHS3 compliant and suitable for the same electrical circuit protection applications. The 0678H5000-02 offers higher inventory availability (14,059 pcs vs. 641 pcs), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the 0678H5000-02 be used as a direct replacement for the 0678H5000-22?

A: Yes. Both parts are electrically and mechanically identical with matching current ratings (5 A), voltage ratings (250 V AC / 125 V DC), package configurations (2-SMD, Square End Block), and physical dimensions (9.80mm x 3.05mm x 3.05mm). The parts differ only in regulatory certifications.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by exact equivalence in current rating, AC/DC voltage ratings, mounting type, package configuration, physical dimensions, breaking capacity, DC cold resistance, operating temperature range, and melting I²t value.

Q: Are there any compliance differences between these parts?

A: The 0678H5000-22 is approved by cURus and TUV. The 0678H5000-02 is approved by AEC-Q200 and cURus. Both are ROHS3 compliant. Application-specific regulatory requirements should determine which part is appropriate.

Q: What is the difference in packaging between these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging. No packaging differences exist between the two parts.

Q: Can these parts be used interchangeably in automotive applications?

A: The 0678H5000-02 carries AEC-Q200 certification, which is specific to automotive applications. The 0678H5000-22 does not carry this certification. For automotive applications, the 0678H5000-02 is the appropriate selection.