Littelfuse 37002000410 Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 37002000410 is a 200 mA, 250 V AC/DC board mount fuse with fast blow response time, designed for through-hole radial mounting in electronic assemblies. This TR5® 370 series fuse is actively produced and widely stocked. Substitute parts are identified when equivalent electrical ratings, mechanical form factors, and approval certifications align with the original specification, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

37002000410

Littelfuse Inc.In Stock: 119137002000410 Datasheet

Current PartRFQ

37002000430

Littelfuse Inc.In Stock: 122237002000430 Datasheet

Parametric EquivalentRFQ

37302000410

Littelfuse Inc.In Stock: 159837302000410 Datasheet

Parametric EquivalentRFQ

0034.6007

SCHURTER Inc.In Stock: 12980034.6007 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 37002000410 are classified based on strict electrical and mechanical parameter alignment:

Parametric Equivalents (Littelfuse Series):

• 37002000430 and 37302000410 maintain identical current rating (200 mA), voltage rating (250 V AC), response time (Fast Blow), mounting type (Through Hole), and package form (Radial, Can, Vertical). All three operate within -40°C ~ 85°C and meet ROHS3 compliance. These parts are interchangeable where the TR5® 370 or TR5® 373 series designation is acceptable.

Direct Manufacturer Equivalent (Cross-Manufacturer):

• 0034.6007 (SCHURTER Inc., MSF 250 series) matches the same current rating (200 mA), voltage rating (250 V AC), response time (Fast Blow), mounting type (Through Hole), and package form (Radial, Can, Vertical). Dimensional tolerance is within acceptable limits (0.335" Dia x 0.335" H vs. 0.335" Dia x 0.315" H). Operating temperature range and RoHS3 compliance are identical.

Substitution is valid only when all critical parameters—current rating, voltage rating, response time, mounting type, and package form—are matched.

Parameter Comparison

Engineering Selection Recommendations

Littelfuse 37002000430: Direct parametric equivalent with identical electrical and mechanical specifications. Approved by CCC, cURus, SEMKO, and VDE. Suitable for applications requiring TR5® 370 series certification or where Littelfuse supply chain preference exists.

Littelfuse 37302000410: Parametric equivalent from the TR5® 373 series with identical current, voltage, and response characteristics. Approved by CSA and cULus. Melting I²t value (0.0065) differs from the main part (0.03), indicating faster thermal response. Select this part only when TR5® 373 series certification is acceptable and faster thermal response is compatible with circuit protection requirements.

SCHURTER 0034.6007: Cross-manufacturer equivalent from the MSF 250 series. Maintains identical electrical ratings and response time. Breaking capacity is 35A versus 50A on the Littelfuse parts. Height dimension is 0.335" (8.50mm) versus 0.315" (8.00mm) on the main part. Approved by CCC, cURus, and VDE. Select this part when SCHURTER supply chain is preferred and the reduced breaking capacity and increased height are compatible with PCB layout and circuit protection requirements.

All substitute parts are ROHS3 compliant and actively produced.

Frequently Asked Questions (FAQ)

Q: Can 37002000430 be used as a direct replacement for 37002000410? A: Yes. Both parts share identical current rating (200 mA), voltage rating (250 V AC), response time (Fast Blow), mounting type (Through Hole), package form (Radial, Can, Vertical), and dimensions. Both are Littelfuse TR5® 370 series with active product status.

Q: What is the difference between 37302000410 and 37002000410? A: The primary difference is the melting I²t value: 37302000410 has 0.0065 versus 37002000410 at 0.03. This indicates faster thermal response in the 37302000410. Both maintain identical current, voltage, and response time ratings. The 37302000410 is TR5® 373 series versus TR5® 370 series.

Q: Can SCHURTER 0034.6007 replace Littelfuse 37002000410? A: Electrical substitution is valid based on matching current (200 mA), voltage (250 V AC), and response time (Fast Blow). However, breaking capacity differs (35A vs. 50A), and height dimension is 0.335" versus 0.315". Verify that reduced breaking capacity and increased height are compatible with your circuit protection design and PCB layout before substitution.

Q: Are all substitute parts RoHS compliant? A: Yes. All parts listed—37002000410, 37002000430, 37302000410, and 0034.6007—are ROHS3 compliant.

Q: What approval certifications should I consider when selecting a substitute? A: The main part (37002000410) carries CCC, cURus, SEMKO, and VDE approvals. Substitute 37002000430 shares these certifications. Substitute 37302000410 carries CSA and cULus approvals. Substitute 0034.6007 carries CCC, cURus, and VDE approvals. Select based on your circuit's required certification standard.

Q: Can these fuses be used in both AC and DC applications? A: All parts are rated for 250 V AC/DC operation within the specified -40°C ~ 85°C operating temperature range.