Littelfuse 0217.630MXE Glass Cartridge Fuse 630mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0217.630MXE is a 630mA 250VAC fast-blow glass cartridge fuse in 5x20mm axial package format, designed for through-hole mounting applications. This part carries an obsolete product status, making identification of active equivalent and substitute components essential for ongoing design support and procurement continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts satisfy the core functional requirements within the allowed parameter tolerances for this fuse category.

Substiute Parts

0217.630MXE

Littelfuse Inc.In Stock: 8110217.630MXE Datasheet

Current PartRFQ

0217.630MXEP

Littelfuse Inc.In Stock: 19520217.630MXEP Datasheet

Parametric EquivalentRFQ

0034.1514

SCHURTER Inc.In Stock: 12410034.1514 Datasheet

MFR RecommendedRFQ

BK/GDB-V-630MA

Eaton - Electronics DivisionIn Stock: 971BK/GDB-V-630MA Datasheet

MFR RecommendedRFQ

BK/S500-V-63-R

Eaton - Electronics DivisionIn Stock: 1163BK/S500-V-63-R Datasheet

MFR RecommendedRFQ

BK/S500-V-630-R

Eaton - Electronics DivisionIn Stock: 748BK/S500-V-630-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution validity for the 0217.630MXE is determined by strict alignment of the following parameters: current rating (630mA), voltage rating (250VAC), fuse type (glass cartridge), package dimensions (5x20mm), response time (fast blow), and breaking capacity (35A). All identified substitutes maintain these core electrical and mechanical specifications. Mounting type variations (through-hole versus requires-holder) represent mechanical interface differences that must be evaluated within specific circuit board design constraints. Parts with differing current ratings or voltage specifications are excluded from this equivalency list.

Parameter Comparison

Engineering Selection Recommendations

Primary Equivalent (Active Status): The Littelfuse 0217.630MXEP represents the direct active equivalent to the obsolete 0217.630MXE. Both parts share identical electrical specifications (630mA, 250VAC), fuse type (glass cartridge), package format (5x20mm axial), and response time (fast blow). The 0217.630MXEP maintains through-hole mounting compatibility and carries ROHS3 compliance status, making it the preferred replacement for new procurement and design updates.

Cross-Manufacturer Substitutes: The Eaton BK/S500-V-630-R and BK/GDB-V-630MA fuses satisfy all core electrical and mechanical requirements. Both maintain 630mA current rating, 250VAC voltage rating, fast-blow response, 35A breaking capacity, and through-hole mounting. The BK/S500-V-630-R carries broader approval agency coverage (BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE), while the BK/GDB-V-630MA provides UL and VDE certification. Both are RoHS compliant.

Holder-Dependent Alternative: The SCHURTER 0034.1514 maintains electrical equivalence but requires a separate fuse holder for mounting. This part is suitable only for designs where holder integration is already specified or where board redesign accommodates holder installation. Melting I²t value (0.303) differs from the main part, representing a tighter thermal response characteristic.

Compliance Consideration: All active substitutes provide RoHS compliance, addressing regulatory requirements that the obsolete 0217.630MXE does not meet. Selection should prioritize parts matching the approval agency requirements of the target application region.

Frequently Asked Questions (FAQ)

Q: Can the 0217.630MXEP directly replace the 0217.630MXE without circuit modification?

A: Yes. The 0217.630MXEP is electrically and mechanically identical to the 0217.630MXE. Both share the same current rating (630mA), voltage rating (250VAC), fuse type (glass cartridge), package dimensions (5x20mm axial), response time (fast blow), and through-hole mounting interface. No circuit redesign is required.

Q: What is the difference between the Littelfuse and Eaton substitutes?

A: All three manufacturers (Littelfuse, SCHURTER, Eaton) provide parts meeting the 630mA, 250VAC, 5x20mm specification. Differences exist in approval agency certifications, melting I²t values, and physical dimensions within tolerance. The Eaton BK/S500-V-630-R carries the broadest certification coverage. Selection depends on regional compliance requirements and existing supplier qualification.

Q: Why does the SCHURTER 0034.1514 require a holder?

A: The 0034.1514 is designed for use with a separate fuse holder assembly rather than direct through-hole PCB mounting. This represents a different mechanical interface. Use this part only if your circuit board design includes a fuse holder socket. Direct PCB mounting is not possible without holder integration.

Q: Are there current rating differences among the substitutes?

A: No. All substitutes listed maintain the 630mA current rating. The BK/S500-V-63-R (63mA) is excluded from this equivalency list due to its significantly lower current rating and is not suitable for this application.

Q: What does melting I²t indicate, and why do values differ?

A: Melting I²t is a thermal characteristic indicating the fuse's response to overcurrent conditions. The main part (0.409) and most substitutes (0.35-0.41) fall within a compatible range. The SCHURTER 0034.1514 (0.303) represents a faster thermal response. Verify that your circuit protection design accommodates the specific I²t value of your selected substitute.

Q: Which substitute offers the best RoHS compliance?

A: The Littelfuse 0217.630MXEP carries ROHS3 compliance. The Eaton BK/S500-V-630-R and BK/GDB-V-630MA are RoHS compliant. All three active substitutes meet modern RoHS requirements, unlike the obsolete 0217.630MXE (RoHS non-compliant).