SCHURTER 0034.5215 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.5215 is a 300 mA, 250 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for 3AB and 3AG holder compatibility. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The fuse operates across a temperature range of -55°C to 125°C and meets CSA and UL approval standards.

Key Parameters

Parameter	Value
Current Rating	300 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"
Breaking Capacity @ Rated Voltage	35 A
Operating Temperature Range	-55°C ~ 125°C
Size / Dimension	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
RoHS Status	ROHS3 Compliant
Approval Agencies	CSA, UL

Substitute Part Grouping Explanation

Substitution for the SCHURTER 0034.5215 is determined by strict equivalence across the following critical parameters:

Current Rating: 300 mA (exact match required)
Voltage Rating: 250 V AC (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
Breaking Capacity: 35 A (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

All substitute parts listed below meet these criteria. Differences in melting I²t values and DC cold resistance do not affect functional substitution within the specified electrical and mechanical parameters.

Parameter Comparison

Parameter	SCHURTER 0034.5215	Littelfuse 0313.300MXP	Eaton BK/MDL-3/10-R	Eaton MDL-3/10-R	Littelfuse 0313.300HXP	Littelfuse 0313.300VXP
Current Rating (Amps)	300 mA	300 mA	300 mA	300 mA	300 mA	300 mA
Voltage Rating - AC	250 V	250 V	250 V	250 V	250 V	250 V
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"
Breaking Capacity @ Rated Voltage	35 A	35 A	35 A	35 A	35 A	35 A
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	Not specified	Not specified	-55°C ~ 125°C	-55°C ~ 125°C
Size / Dimension	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agencies	CSA, UL	CE, CSA, UL	CE, CSA, UL	CE, CSA, UL	CE, CSA, UL	CE, CSA, UL

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the SCHURTER 0034.5215 based on electrical and mechanical parameter matching. Selection among substitutes should be based on the following factors:

Product Status: The Littelfuse 0313.300MXP, 0313.300HXP, and 0313.300VXP, as well as the Eaton BK/MDL-3/10-R and MDL-3/10-R, are all active products with ongoing manufacturer support, unlike the obsolete SCHURTER original.

Compliance and Certifications: The Littelfuse parts (0313.300MXP, 0313.300HXP, 0313.300VXP) and Eaton parts (BK/MDL-3/10-R, MDL-3/10-R) all carry CE, CSA, and UL approvals, providing broader regulatory coverage than the original part's CSA and UL certifications.

Inventory Availability: Current stock levels vary across substitute options, with Eaton BK/MDL-3/10-R offering 1334 units, Littelfuse 0313.300MXP offering 1149 units, and Littelfuse 0313.300VXP offering 924 units.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the SCHURTER 0034.5215?

A: Yes. All listed parts meet identical electrical and mechanical specifications: 300 mA current rating, 250 V AC voltage rating, slow-blow response, 3AB/3AG package compatibility, and 35 A breaking capacity. Physical dimensions and holder compatibility are identical.

Q: What is the difference between the Littelfuse 0313.300MXP, 0313.300HXP, and 0313.300VXP?

A: These three Littelfuse parts are parametrically equivalent across all critical electrical and mechanical parameters. Differences exist in melting I²t values (0.73 for all three) and DC cold resistance (3.135 Ohms for all three), which do not affect functional substitution within the specified operating parameters.

Q: Are the Eaton MDL-3/10-R and BK/MDL-3/10-R interchangeable?

A: Yes. Both Eaton parts meet identical electrical and mechanical specifications. The BK/MDL-3/10-R variant carries explicit temperature range specifications (-55°C ~ 125°C is not stated for MDL-3/10-R), but both are functionally equivalent for the defined application parameters.

Q: Does the operating temperature range matter for my application?

A: The SCHURTER 0034.5215 and most substitute parts (Littelfuse 0313.300MXP, 0313.300HXP, 0313.300VXP) specify -55°C ~ 125°C operation. The Eaton parts do not provide explicit temperature range specifications in the available data. If your application requires confirmed temperature range coverage, select from the Littelfuse options or verify Eaton specifications with the manufacturer.

Q: What certifications do these substitute parts carry?

A: The Littelfuse parts (0313.300MXP, 0313.300HXP, 0313.300VXP) and Eaton parts (BK/MDL-3/10-R, MDL-3/10-R) all carry CE, CSA, and UL approvals. The original SCHURTER part carries CSA and UL approvals only.

Q: Are all these parts RoHS compliant?

A: Yes. All substitute parts are RoHS compliant. The SCHURTER 0034.5215 is ROHS3 compliant, as are the Littelfuse parts and Eaton BK/MDL-3/10-R. The Eaton MDL-3/10-R is listed as RoHS compliant.

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