SCHURTER 3-103-094 Surface Mount Fuse – Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-103-094 is a 375 mA, 125 V AC/DC surface mount board fuse in 2-SMD, Square End Block package configuration. This fast-blow fuse is designed for circuit protection in applications requiring board-level mounting without cartridge-style housings. The part is Active status and widely stocked, with 1,068 units available. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging format changes, or design revisions.

Substiute Parts

3-103-094

SCHURTER Inc.In Stock: 10993-103-094 Datasheet

Current PartRFQ

3410.0022.03

SCHURTER Inc.In Stock: 38823410.0022.03 Datasheet

UpgradeRFQ

3410.0022.04

SCHURTER Inc.In Stock: 107823410.0022.04 Datasheet

UpgradeRFQ

3410.0025.03

SCHURTER Inc.In Stock: 36473410.0025.03 Datasheet

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3-103-095

SCHURTER Inc.In Stock: 37533-103-095 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3-103-094 is determined by the following critical parameters:

Electrical Parameters (Must Match):

• Current Rating: 375 mA
• Voltage Rating (AC): 125 V
• Voltage Rating (DC): 125 V
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 50A AC, 300A DC

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 2-SMD, Square End Block
• Size / Dimension: 0.126" L x 0.061" W x 0.061" H (3.20mm x 1.55mm x 1.55mm)

Allowable Variations:

• Packaging Format: Tape & Reel (TR) or Cut Tape (CT)
• Series designation: MGA-A or MGA
• Operating Temperature Range: May extend beyond -55°C ~ 125°C
• Approval Agency: May include additional certifications beyond cURus, UL

Substitute parts meeting all electrical and mechanical parameters are functionally equivalent for direct replacement in the same circuit protection application.

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical & Mechanical Equivalents (375 mA Rating):

Parts 3410.0025.03 and 3-103-095 are direct functional equivalents to the 3-103-094, matching all critical electrical parameters (375 mA, 125 V AC/DC, Fast Blow) and mechanical specifications (2-SMD, Square End Block, identical dimensions). Both are Active status products with full ROHS3 compliance.

Part 3-103-095 maintains identical series designation (MGA-A) and dual cURus/UL approval matching the main part. This part is available in Cut Tape (CT) packaging format, suitable for applications requiring individual component handling rather than reel-based assembly.

Part 3410.0025.03 operates across an extended temperature range (-55°C ~ 150°C) compared to the main part (-55°C ~ 125°C), providing enhanced thermal performance in elevated-temperature environments. This part carries cURus approval and is available in Tape & Reel format with 3,546 units in stock.

Current-Reduced Alternatives (250 mA Rating):

Parts 3410.0022.03 and 3410.0022.04 are not direct substitutes due to reduced current rating (250 mA versus 375 mA). These parts are electrically distinct and must not be used as replacements unless circuit design explicitly permits lower current protection thresholds. Both parts share identical mechanical packaging and extended operating temperature range (-55°C ~ 150°C).

Frequently Asked Questions (FAQ)

Q: Can I use part 3410.0022.03 or 3410.0022.04 as a replacement for 3-103-094?

A: No. These parts have a 250 mA current rating, while the 3-103-094 is rated for 375 mA. Current rating is a critical electrical parameter that determines circuit protection characteristics. Using a lower-rated fuse creates inadequate protection and violates design specifications.

Q: What is the difference between 3-103-094 and 3-103-095?

A: Both parts are 375 mA, 125 V AC/DC surface mount fuses with identical electrical and mechanical specifications. The primary difference is packaging format: 3-103-094 is supplied in Tape & Reel (TR) format, while 3-103-095 is supplied in Cut Tape (CT) format. Both carry cURus and UL approvals and are functionally interchangeable.

Q: Why does 3410.0025.03 have a different melting I²t value than 3-103-094?

A: The melting I²t value (0.0037 versus 0.00035) reflects internal fuse element design differences between the MGA-A series (3-103-094) and MGA series (3410.0025.03). Despite this difference, both parts maintain identical current rating (375 mA), voltage rating (125 V AC/DC), response time (Fast Blow), and breaking capacity (50A AC, 300A DC), making them electrically equivalent for circuit protection applications.

Q: Can I substitute 3410.0025.03 in applications requiring UL approval?

A: Part 3410.0025.03 carries cURus approval only. If your application requires UL certification, use 3-103-094 or 3-103-095, both of which carry dual cURus/UL approval.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (3410.0022.03, 3410.0022.04, 3410.0025.03, and 3-103-095) are ROHS3 compliant, matching the environmental compliance status of the main part 3-103-094.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous reels suitable for automated pick-and-place assembly equipment. Cut Tape (CT) packaging supplies components on tape segments, suitable for manual handling or lower-volume assembly processes. Both formats contain the same component; packaging format selection depends on assembly methodology.