Littelfuse 37005000430 Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 37005000430 is a 500 mA, 250 V AC/DC board mount fuse with fast blow response characteristics. This radial, can-style through-hole component is designed for circuit protection in industrial and commercial applications. The part maintains active product status with full compliance to international safety standards including CCC, cURus, SEMKO, and VDE certifications. Substitute parts are identified to address inventory availability, regional certification requirements, or specific application constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

37005000430

Littelfuse Inc.In Stock: 84337005000430 Datasheet

Current PartRFQ

37005000410

Littelfuse Inc.In Stock: 215137005000410 Datasheet

DirectRFQ

37305000410

Littelfuse Inc.In Stock: 168037305000410 Datasheet

Parametric EquivalentRFQ

0034.6011

SCHURTER Inc.In Stock: 34630034.6011 Datasheet

DirectRFQ

0034.6071

SCHURTER Inc.In Stock: 15480034.6071 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of electrical parameters and mechanical form factors. The primary substitution criteria are:

• Current Rating: 500 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Style: Radial, Can, Vertical (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents (Littelfuse): Parts 37005000410 and 37305000410 are Littelfuse products within the TR5® series that maintain identical electrical specifications and physical dimensions. These parts differ only in series designation and internal melting I²t characteristics, which do not affect substitution eligibility for the specified application parameters.

Cross-Manufacturer Equivalents (SCHURTER): Parts 0034.6011 and 0034.6071 are SCHURTER MSF 250 series fuses that match all critical electrical and mechanical parameters. Physical dimensions are 0.335" Dia × 0.335" H (8.50 mm × 8.50 mm), representing a minor height variation of 0.020" (0.50 mm) from the main part. Breaking capacity is 35 A versus 50 A for the main part.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and full RoHS3 compliance. Selection between Littelfuse and SCHURTER equivalents depends on certification requirements and application constraints.

Littelfuse 37005000410: Identical to the main part 37005000430 in all electrical and mechanical specifications. Holds certifications for CCC, cURus, SEMKO, and VDE. Recommended for direct replacement where Littelfuse TR5® 370 series continuity is required.

Littelfuse 37305000410: Maintains identical electrical performance and physical dimensions. Operates within the TR5® 373 series with CSA and cULus certifications. Suitable for applications requiring North American certification emphasis.

SCHURTER 0034.6011 and 0034.6071: Both parts meet all electrical specifications with MSF 250 series certification (CCC, cURus, VDE for 0034.6011; no approval agency listed for 0034.6071). Physical height is 0.335" (8.50 mm) versus 0.315" (8.00 mm) for the main part. Breaking capacity is 35 A versus 50 A. These parts are suitable for applications where the dimensional and breaking capacity variations are acceptable and SCHURTER product qualification is preferred.

Frequently Asked Questions (FAQ)

Q: Can 37005000410 be used as a direct replacement for 37005000430?

A: Yes. Both parts are Littelfuse TR5® 370 series fuses with identical current rating (500 mA), voltage rating (250 V AC), response time (fast blow), mounting type (through hole), package style (radial, can, vertical), dimensions (0.335" Dia × 0.315" H), breaking capacity (50 A), and operating temperature range (-40°C to 85°C). All certifications and compliance standards are equivalent.

Q: What are the differences between Littelfuse and SCHURTER substitute options?

A: Littelfuse parts 37005000410 and 37305000410 maintain the exact physical dimensions and 50 A breaking capacity of the main part. SCHURTER parts 0034.6011 and 0034.6071 have a height of 0.335" (8.50 mm) instead of 0.315" (8.00 mm) and a breaking capacity of 35 A instead of 50 A. All parts share identical electrical specifications (500 mA, 250 V AC, fast blow response).

Q: Are there packaging format differences among the substitute parts?

A: Yes. Parts 37005000430, 37005000410, 37305000410, and 0034.6011 are supplied in Bulk packaging. Part 0034.6071 is supplied in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Which substitute part has the highest inventory availability?

A: SCHURTER 0034.6011 has the highest inventory with 3403 pieces in stock, followed by Littelfuse 37005000410 with 2100 pieces.

Q: Do all substitute parts meet the same international certifications as the main part?

A: Littelfuse 37005000410 matches the main part's certifications (CCC, cURus, SEMKO, VDE). Littelfuse 37305000410 holds CSA and cULus certifications. SCHURTER 0034.6011 holds CCC, cURus, and VDE certifications. SCHURTER 0034.6071 has no approval agency listed. Certification selection depends on regional and application-specific requirements.