Littelfuse 0662.200ZRLL Equivalent & Substitute Parts

Part Overview

The Littelfuse 0662.200ZRLL is a 200 mA, 250 V AC/DC board mount fuse with fast blow response time, designed for through hole radial mounting in vertical orientation. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

0662.200ZRLL

Littelfuse Inc.In Stock: 8240662.200ZRLL Datasheet

Current PartRFQ

37002000000

Littelfuse Inc.In Stock: 91937002000000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0662.200ZRLL is determined by strict equivalence across the following parameters:

• Current Rating: 200 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can, Vertical (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)

The substitute part Littelfuse 37002000000 meets all mandatory electrical and mechanical parameters. While dimensional and performance characteristics show minor variations, these fall within acceptable tolerances for board mount fuse applications.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 37002000000 is the primary substitute for the obsolete 0662.200ZRLL. Both components are manufactured by Littelfuse Inc. and maintain identical electrical ratings across current, voltage, and response characteristics. The substitute part carries active product status, ensuring ongoing availability and supply chain continuity.

The 37002000000 provides enhanced breaking capacity (50 A versus 35 A) and higher melting I²t (0.03 versus 0.024), representing improved performance margins. Height dimension variance (8.00mm versus 8.45mm) is minimal and does not preclude direct board-level substitution in standard through hole mounting applications.

Both components satisfy identical regulatory certifications including ROHS3 compliance and VDE approval. The substitute part includes additional CCC and cURus certifications and specifies operating temperature range (-40°C ~ 85°C), providing enhanced documentation for system integration.

Frequently Asked Questions (FAQ)

Q: Can the 37002000000 be used as a direct replacement for the 0662.200ZRLL?

A: Yes. Both components share identical current rating (200 mA), voltage rating (250 V AC), response time (fast blow), mounting type (through hole), and package configuration (radial, can, vertical). Electrical performance is equivalent for board mount fuse applications.

Q: What is the significance of the different breaking capacity ratings?

A: The 37002000000 provides 50 A breaking capacity compared to 35 A for the 0662.200ZRLL. This represents enhanced fault current handling capability and does not affect normal circuit operation at the 200 mA rated current.

Q: Are there dimensional compatibility concerns?

A: The substitute part measures 0.335" Dia x 0.315" H (8.50mm x 8.00mm) versus the original 0.335" Dia x 0.333" H (8.50mm x 8.45mm). The 0.45mm height reduction is within standard PCB mounting tolerances and does not compromise mechanical fit in through hole applications.

Q: What is the product status difference, and why does it matter?

A: The 0662.200ZRLL is classified as obsolete, while the 37002000000 is active. Active status ensures continued manufacturing, documented supply availability, and manufacturer support for technical specifications and compliance documentation.

Q: Are regulatory certifications equivalent?

A: Both components are ROHS3 compliant and carry VDE approval. The 37002000000 includes additional CCC and cURus certifications. Both satisfy standard regulatory requirements for board mount fuse applications in industrial and consumer electronics.

Q: What packaging format is available for the substitute part?

A: The 37002000000 is supplied in Cut Tape (CT) packaging, suitable for automated assembly processes and component handling in production environments.