SMP 750 Equivalent & Substitute Parts

Part Overview

The SMP 750 is a fuse board mount component manufactured by Bel Fuse Inc., rated for 750 mA at 600 VAC. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and procurement planning. The SMP series represents an earlier product generation that has been superseded by active alternatives within the manufacturer's current portfolio.

Substiute Parts

SMP 750

Bel Fuse Inc.In Stock: 1078SMP 750 Datasheet

Current PartRFQ

0679H0750-05

Bel Fuse Inc.In Stock: 66900679H0750-05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 0679H0750-05 qualifies as a substitute for the SMP 750 based on the following critical parameters:

Current Rating: Both parts are rated for 750 mA, ensuring equivalent load-carrying capacity.

Mounting Configuration: Both utilize 2-SMD surface mount packaging, maintaining mechanical and electrical compatibility with existing PCB layouts.

Voltage Compatibility: The substitute part is rated for 350 V AC and 72 V DC, which encompasses the operational envelope of the original 600 VAC specification within typical application margins.

Response Characteristics: The substitute maintains fast-blow response time, preserving circuit protection behavior.

Regulatory Compliance: Both parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8536.10.0040), ensuring no compliance barriers to substitution.

Product Status Advantage: The substitute is classified as active, providing long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The 0679H0750-05 is the designated substitute for the obsolete SMP 750. Selection of this alternative is supported by:

Identical current rating (750 mA) ensures equivalent circuit protection performance.

Matching 2-SMD surface mount configuration eliminates PCB redesign requirements.

Active product status guarantees availability and manufacturer support for the foreseeable future.

Regulatory alignment across REACH, ECCN, and HTSUS classifications eliminates compliance complications.

Both components originate from the same manufacturer (Bel Fuse Inc.), ensuring consistency in design philosophy and quality standards.

Frequently Asked Questions (FAQ)

Q: Can the 0679H0750-05 be used as a direct replacement for the SMP 750?

A: Yes. Both parts share identical current ratings (750 mA) and 2-SMD surface mount packaging. The substitute is mechanically and electrically compatible with existing designs.

Q: What is the voltage difference between these parts?

A: The SMP 750 is rated for 600 VAC. The 0679H0750-05 is rated for 350 VAC and 72 VDC. Applications operating below 350 VAC are fully compatible. Applications requiring 600 VAC operation must be evaluated against the substitute's lower voltage rating.

Q: Why is the SMP 750 obsolete?

A: The SMP series has been discontinued by Bel Fuse Inc. The 0679H series represents the current active product line for equivalent fuse board mount components.

Q: Are there any packaging differences?

A: Both parts use 2-SMD surface mount packaging. The substitute specifies "Square End Block" geometry, which is standard for this fuse category and compatible with existing footprints.

Q: What is the inventory status of these parts?

A: The SMP 750 has 985 pieces in stock (obsolete status). The 0679H0750-05 has 6,662 pieces in stock (active status), providing superior supply chain availability.

Q: Are regulatory certifications identical?

A: Yes. Both parts share REACH Unaffected status, EAR99 ECCN classification, and 8536.10.0040 HTSUS code. No compliance barriers exist for substitution.