Littelfuse 4626-01 Equivalent & Substitute Parts

Part Overview

The Littelfuse 4626-01 is a 6-position fuse block designed for fuse circuit applications. This component is classified as obsolete and does not meet RoHS compliance requirements. Due to its obsolete status and non-compliant RoHS classification, identifying functionally equivalent active alternatives is essential for ongoing system maintenance and new design implementations.

Substiute Parts

4626-01

Littelfuse Inc.In Stock: 9484626-01 Datasheet

Current PartRFQ

BF201-6P

MPD (Memory Protection Devices)In Stock: 1156BF201-6P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The MPD BF201-6P serves as the manufacturer-recommended substitute for the Littelfuse 4626-01. Substitution compatibility is determined by the following critical parameters:

• Number of Circuits: Both parts provide 6-circuit fuse block functionality
• Fuse Type: Cartridge-based fuse holder configuration
• Fuseholder Type: Block-style design
• Moisture Sensitivity Level: Both rated at MSL 1 (Unlimited)
• Termination Style: Screw terminal connection method

The BF201-6P maintains functional equivalence through identical circuit count and termination architecture while providing active product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The MPD BF201-6P is the designated substitute for the obsolete Littelfuse 4626-01. Selection of the BF201-6P is supported by:

• Active Product Status: The BF201-6P maintains current manufacturing and supply chain availability, eliminating obsolescence risk
• RoHS Compliance: The BF201-6P meets RoHS requirements, satisfying regulatory and procurement standards for new installations and system upgrades
• Functional Equivalence: Identical circuit count (6), fuse type (cartridge), and termination method (screw terminal) ensure direct functional replacement
• Identical MSL Rating: Both components share MSL 1 classification, maintaining equivalent moisture handling characteristics

Frequently Asked Questions (FAQ)

Q: Can the MPD BF201-6P directly replace the Littelfuse 4626-01 in existing applications?

A: Yes. Both components provide 6-circuit cartridge fuse block functionality with screw terminal termination. The BF201-6P maintains the same electrical and mechanical interface requirements.

Q: What is the primary advantage of switching to the BF201-6P?

A: The BF201-6P is an active product with RoHS compliance, whereas the 4626-01 is obsolete and non-compliant. This ensures long-term supply availability and regulatory alignment.

Q: Are there any mounting differences between these components?

A: The BF201-6P is specified as chassis mount. Verify that your application supports chassis mount configuration before implementation.

Q: What fuse specifications are compatible with the BF201-6P?

A: The BF201-6P accommodates 3AG cartridge fuses sized 0.25" diameter × 1.26" length (6.35mm × 32mm). Confirm fuse specifications match your circuit protection requirements.

Q: Is the moisture sensitivity level the same between both parts?

A: Yes. Both the 4626-01 and BF201-6P are rated at MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.