Littelfuse 0662.200HXLL Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0662.200HXLL is a 200 mA, 250 V AC/DC board mount fuse with radial, can-style vertical mounting. This component belongs to the LT-5™ 662 series and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs or field replacements.

Substiute Parts

0662.200HXLL

Littelfuse Inc.In Stock: 12060662.200HXLL Datasheet

Current PartRFQ

37302000000

Littelfuse Inc.In Stock: 293237302000000 Datasheet

MFR RecommendedRFQ

0034.6007

SCHURTER Inc.In Stock: 12980034.6007 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0662.200HXLL are qualified based on the following critical parameters:

• Current Rating: 200 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Board Mount, Through Hole mounting
• Package / Case: Radial, Can, Vertical configuration
• Response Time: Fast Blow characteristic
• RoHS Compliance: ROHS3 Compliant

Two substitute parts meet these criteria: the Littelfuse 37302000000 (MFR Recommended) and the SCHURTER 0034.6007 (Direct Manufacturer). Both maintain identical electrical ratings and mounting characteristics while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 37302000000 is designated as the MFR Recommended substitute. This part maintains active product status, ensuring long-term availability and supply chain stability. It carries CSA and cULus certifications, providing regulatory compliance for most applications. The increased breaking capacity of 50A offers enhanced protection margins compared to the original 35A specification.

The SCHURTER 0034.6007 serves as an alternative direct manufacturer substitute. This part also maintains active status with CCC, cURus, and VDE certifications. It preserves the original breaking capacity specification of 35A and offers dimensional compatibility within acceptable tolerances for through-hole radial mounting applications.

Both substitutes are ROHS3 compliant and suitable for applications requiring 200 mA, 250 V AC/DC protection with fast-blow response characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 37302000000 be used as a direct replacement for the 0662.200HXLL?

A: Yes. Both parts share identical electrical ratings (200 mA, 250 V AC/DC), fuse type (board mount, through hole), and package configuration (radial, can, vertical). The 37302000000 is the manufacturer-recommended substitute and maintains active product status.

Q: What is the difference between the 37302000000 and 0034.6007 substitutes?

A: Both parts meet the core electrical and mechanical requirements. The 37302000000 is a Littelfuse product with a higher breaking capacity (50A vs. 35A) and CSA/cULus certifications. The 0034.6007 is a SCHURTER product with CCC/cURus/VDE certifications and matches the original breaking capacity specification of 35A. Selection depends on certification requirements and supply chain preferences.

Q: Are there dimensional differences between these parts?

A: Minor height variations exist. The 0662.200HXLL measures 0.333" H, the 37302000000 measures 0.315" H, and the 0034.6007 measures 0.335" H. All share the same 0.335" diameter. These variations are within acceptable tolerances for through-hole radial mounting on standard PCB layouts.

Q: Do all substitute parts carry the same regulatory certifications?

A: No. The original part carries CSA, SEMKO, UL, and VDE certifications. The 37302000000 carries CSA and cULus certifications. The 0034.6007 carries CCC, cURus, and VDE certifications. Application requirements and regional regulations determine which certifications are necessary.

Q: Why is the original part obsolete?

A: The 0662.200HXLL belongs to the LT-5™ 662 series, which has been superseded by newer product lines. The 37302000000 (TR5® 373 series) represents the current generation equivalent from Littelfuse.