Littelfuse 0217.315H Glass Cartridge Fuse 315mA 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0217.315H is a 315mA 250VAC fast-blow glass cartridge fuse in 5x20mm form factor, designed for circuit protection in AC/DC applications. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications. Substitute parts must preserve the 315mA current rating, 250V voltage rating, fast-blow response characteristic, and 5x20mm physical dimensions to ensure direct functional compatibility in existing designs.

Key Parameters

Parameter	Value
Current Rating	315 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Fast Blow
Package / Case	5mm x 20mm
Breaking Capacity @ Rated Voltage	35A
Mounting Type	Requires Holder
Operating Temperature Range	-55°C to 125°C
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Current Rating: 315 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Fast Blow (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Breaking Capacity: 35A (exact match required)
Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these criteria. Variations in secondary parameters such as DC cold resistance, melting I²t, and approval agency certifications do not affect functional substitutability but may influence application-specific compliance requirements.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage Rating (AC)	Response Time	Package	Breaking Capacity	Product Status	RoHS Status
0217.315H	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Obsolete	RoHS non-compliant
0217.315HXP	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
0217.315MXBP	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
0217.315MXP	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
0217.315TXP	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
0217.315VXP	Littelfuse Inc.	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
BK/GDB-315MA	Eaton - Electronics Division	315 mA	250 V	Fast Blow	5x20mm	35A	Active	RoHS Compliant
BK/GMA-315-R	Eaton - Electronics Division	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
BK/S500-315-R	Eaton - Electronics Division	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant
BK1/GMA-315-R	Eaton - Electronics Division	315 mA	250 V	Fast Blow	5x20mm	35A	Active	RoHS Compliant
BK1/S500-315-R	Eaton - Electronics Division	315 mA	250 V	Fast Blow	5x20mm	35A	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the 0217.315H and maintain identical electrical and mechanical specifications. Selection among active alternatives should prioritize:

Littelfuse Series 217 Variants (0217.315HXP, 0217.315MXBP, 0217.315MXP, 0217.315TXP, 0217.315VXP): These parts represent direct manufacturer evolution from the obsolete 0217.315H, offering ROHS3 compliance and active product status. The 0217.315MXP variant has the highest inventory availability (9,856 pcs), providing supply chain stability.

Eaton GMA Series (BK/GMA-315-R, BK1/GMA-315-R): These parts offer ROHS3 or RoHS compliance with active status. The BK/GMA-315-R variant has substantial inventory (4,682 pcs) and is designated as manufacturer-recommended.

Eaton S500 Series (BK/S500-315-R, BK1/S500-315-R): These parts provide ROHS3 compliance, active status, and comprehensive international certifications (BSI, CCC, CSA, cULus, IMQ, SEMKO, VDE). Both variants maintain 35A breaking capacity and are suitable for applications requiring broad regulatory approval.

Eaton GDB Series (BK/GDB-315MA): This variant offers RoHS compliance and active status with UL and VDE certifications, suitable for applications with specific approval requirements.

For new designs or long-term supply assurance, Littelfuse Series 217 variants are recommended due to direct manufacturer lineage and ROHS3 compliance. For applications requiring specific international certifications, Eaton S500 series variants provide the broadest approval coverage.

Frequently Asked Questions (FAQ)

Q: Can the 0217.315H be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts maintain identical current rating (315 mA), voltage rating (250 V AC), response time (fast-blow), package dimensions (5x20mm), and breaking capacity (35A). Direct mechanical and electrical compatibility is assured.

Q: What is the difference between Littelfuse and Eaton substitute options?

A: Both manufacturers produce functionally equivalent 315mA 250VAC fast-blow glass cartridge fuses in 5x20mm form factor. Littelfuse variants represent direct evolution from the obsolete 0217.315H within the same Series 217 family. Eaton variants (GMA, S500, GDB series) offer alternative sourcing with different approval agency certifications. Selection depends on supply availability, compliance requirements, and design qualification history.

Q: Are there differences in DC cold resistance among the substitute parts?

A: Yes. DC cold resistance varies across manufacturers and series (ranging from 0.839 Ohms to 3.1 Ohms). This parameter does not affect substitutability for AC circuit protection applications but may influence performance in DC circuits. Verify DC cold resistance compatibility with application requirements before selection.

Q: Do all substitute parts require the same holder as the 0217.315H?

A: Yes. All substitute parts are cartridge-type fuses requiring a holder for installation. The 5x20mm physical dimensions ensure mechanical compatibility with existing fuse holders designed for the 0217.315H.

Q: Which substitute part offers the best supply availability?

A: The Littelfuse 0217.315MXP variant has the highest inventory (9,856 pcs), followed by the Eaton BK/GMA-315-R (4,682 pcs). Both are active products with ROHS3 compliance.

Q: Are all substitute parts RoHS compliant?

A: Most substitute parts are ROHS3 compliant. The Eaton BK/GDB-315MA and BK1/GMA-315-R variants are RoHS compliant (not ROHS3). The original 0217.315H is RoHS non-compliant. Verify compliance requirements for your application before selection.

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