SCHURTER 0034.5135 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.5135 is a 3 A, 250 V AC/DC fast-blow glass cartridge fuse in 3AB/3AG package format (1/4" x 1-1/4"). This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing system support and procurement. The fuse requires a compatible holder and is approved by CSA and UL standards. Equivalent parts maintain identical electrical and mechanical specifications while substitute parts offer compatible operation within defined parameter ranges.

Substiute Parts

0034.5135

SCHURTER Inc.In Stock: 10320034.5135 Datasheet

Current PartRFQ

8020.5073

SCHURTER Inc.In Stock: 7178020.5073 Datasheet

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0312003.HXP

Littelfuse Inc.In Stock: 14750312003.HXP Datasheet

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0312003.MXP

Littelfuse Inc.In Stock: 123840312003.MXP Datasheet

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0312003.VXP

Littelfuse Inc.In Stock: 7420312003.VXP Datasheet

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AGC-3-R

Eaton - Electronics DivisionIn Stock: 882AGC-3-R Datasheet

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BK/AGC-3-R

Eaton - Electronics DivisionIn Stock: 6667BK/AGC-3-R Datasheet

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3AG 3-R

Bel Fuse Inc.In Stock: 128293AG 3-R Datasheet

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FSA-3A

OptiFuseIn Stock: 11529FSA-3A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

• Current Rating: 3 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Size / Dimension: 0.250" Dia x 1.252" L (6.35mm x 31.80mm)
• Operating Temperature Range: -55°C ~ 125°C

Allowable Variation Parameters:

• Breaking Capacity @ Rated Voltage: 100 A to 200 A
• Melting I²t: 14 to 45.9
• DC Cold Resistance: 0.033 to 0.0427 Ohms

All identified substitute parts meet these criteria and are approved by recognized certification agencies (UL, CSA, cURus, CE, PSE, KC).

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain continuity. Selection should prioritize parts with the broadest certification coverage:

Highest Compatibility: Littelfuse 0312003.HXP, 0312003.MXP, and 0312003.VXP offer identical electrical specifications with expanded international approvals (CE, CSA, KC, PSE, UL), providing flexibility for global applications.

Mechanical Equivalence: Bel Fuse 3AG 3-R and OptiFuse FSA-3A maintain dimensional parity with the original SCHURTER part (0.250" Dia x 1.252" L) and match the 200 A breaking capacity specification.

Eaton AGC Series: AGC-3-R and BK/AGC-3-R provide CSA and UL certification with established market presence. The BK/AGC-3-R variant offers higher inventory availability (6,557 units).

All substitute parts comply with ROHS3 and REACH requirements, maintaining environmental and regulatory compliance equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SCHURTER 0034.5135 with any of the listed parts?

A: Yes. All listed parts meet the critical electrical and mechanical parameters: 3 A current rating, 250 V AC voltage rating, fast-blow response, glass cartridge type, and 3AB/3AG package format with 0.250" diameter and 1.252" length (±0.002"). Dimensional tolerance of ±0.002" is within standard mechanical compatibility for cartridge fuse holders.

Q: What is the difference between the Littelfuse 0312003.HXP, 0312003.MXP, and 0312003.VXP variants?

A: These three Littelfuse parts are electrically and mechanically identical, sharing the same 3 A, 250 V specifications, 100 A breaking capacity, and 14 melting I²t rating. Differences are limited to internal packaging or distribution channel designations. All three are interchangeable.

Q: Why do some substitute parts have different breaking capacities (100 A vs. 200 A)?

A: Breaking capacity variation (100 A to 200 A) is an allowable parameter for substitution. The original SCHURTER part specifies 200 A breaking capacity; Littelfuse and Eaton variants specify 100 A. Both ratings exceed typical circuit protection requirements for 3 A fuses in standard applications. System design must confirm that 100 A breaking capacity is acceptable for the intended circuit.

Q: Are there any temperature range differences I should consider?

A: All substitute parts maintain the -55°C to 125°C operating temperature range specified for the original SCHURTER component. No thermal derating is required when substituting.

Q: Which substitute part has the best availability?

A: Bel Fuse 3AG 3-R offers the highest inventory (12,754 units), followed by Littelfuse 0312003.MXP (12,307 units) and OptiFuse FSA-3A (11,500 units). Eaton BK/AGC-3-R provides 6,557 units. All parts are in active production with new original stock.

Q: Do I need to change the fuse holder when substituting?

A: No. All substitute parts use the same 3AB/3AG package format and require the same holder type as the original SCHURTER 0034.5135. Physical installation is identical.

Q: What certifications should I prioritize for my application?

A: Selection depends on geographic and regulatory requirements. For North American applications, CSA and UL certifications are standard. For international markets, Littelfuse parts with CE, CSA, KC, and PSE approvals provide broader compliance. Verify your specific application requirements before final selection.