Littelfuse 0218.063MXEP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0218.063MXEP is a 63 mA, 250 V AC/DC slow-blow glass cartridge fuse with a 5mm x 20mm axial form factor. This component is designed for circuit protection in applications requiring time-delayed response characteristics. The part maintains active product status with full RoHS3 compliance and multiple international approvals including UL, CE, VDE, CSA, and CCC certification. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and safety certifications align with the original specification.

Substiute Parts

0218.063MXEP

LittelfuseIn Stock: 12100218.063MXEP Datasheet

Current PartRFQ

0034.3105.PT

SCHURTER Inc.In Stock: 13850034.3105.PT Datasheet

DirectRFQ

BK/S506-V-63-R

Eaton - Electronics DivisionIn Stock: 823BK/S506-V-63-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0218.063MXEP are qualified based on the following critical parameters:

• Current Rating: Exact match at 63 mA
• Voltage Rating (AC): Exact match at 250 V
• Response Time: Slow-blow characteristic maintained
• Package / Case: 5mm x 20mm axial form factor
• Fuse Type: Glass cartridge construction
• Mounting Type: Through-hole configuration
• Breaking Capacity: 35 A minimum at rated voltage
• RoHS Compliance: ROHS3 Compliant status

All identified substitutes meet these core electrical and mechanical requirements, ensuring direct functional equivalence in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with full RoHS3 compliance. The Littelfuse 0218.063MXEP carries the broadest certification portfolio including UL, CE, VDE, CSA, CCC, K-MARK, and SEMKO approvals. The SCHURTER 0034.3105.PT holds cURus certification. The Eaton BK/S506-V-63-R provides BSI, CCC, CSA, IMQ, SEMKO, UR, and VDE certifications. Selection should be based on specific application certification requirements and regional compliance mandates. All three parts are functionally equivalent for 63 mA, 250 V AC/DC circuit protection with slow-blow response in 5mm x 20mm through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0034.3105.PT directly replace the Littelfuse 0218.063MXEP?

A: Yes. Both parts share identical electrical ratings (63 mA, 250 V AC/DC), response time (slow-blow), and mechanical package (5mm x 20mm axial). Both are ROHS3 compliant and rated for 35 A breaking capacity.

Q: What is the difference between the Eaton BK/S506-V-63-R and the Littelfuse part?

A: The Eaton part meets the same electrical and mechanical specifications. Physical dimensions vary slightly (5.54mm diameter vs. 6.00mm, and 21.10mm length vs. 22.50mm), but both conform to the 5mm x 20mm package classification. Certification coverage differs, with Eaton providing BSI, IMQ, and UR approvals in addition to shared certifications.

Q: Are there dimensional tolerances that affect interchangeability?

A: All three parts are specified as 5mm x 20mm axial cartridge fuses. Actual measured dimensions show minor variations within manufacturing tolerances. Physical fit in standard fuse holders designed for this package class is maintained across all three parts.

Q: Which part should I select if my application requires specific regional certifications?

A: The Littelfuse 0218.063MXEP provides the most comprehensive certification coverage including K-MARK and SEMKO. The Eaton BK/S506-V-63-R includes BSI and IMQ certifications. The SCHURTER 0034.3105.PT carries cURus certification. Verify your application's specific certification requirements against each part's approval agency list.

Q: Do these parts have different melting I²t characteristics?

A: Yes. Melting I²t values are 0.0117 (Littelfuse), 0.0401 (SCHURTER), and 0.021 (Eaton). While these values differ, all parts maintain the same 63 mA current rating and slow-blow response classification. Application-specific thermal performance requirements should be evaluated against these specifications.