SCHURTER 3-103-090 Surface Mount Fuse: Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-103-090 is a 250 mA, 125 V AC/DC surface mount board fuse in the MGA-A series. This fast-blow fuse is designed for circuit protection in applications requiring compact, high-reliability surface mount components. The part is active and widely stocked, with 794 units available in Tape & Reel packaging. Substitute parts are identified to address packaging format requirements, extended operating temperature ranges, or alternative sourcing needs while maintaining identical electrical and mechanical specifications.

Substiute Parts

3-103-090

SCHURTER Inc.In Stock: 8943-103-090 Datasheet

Current PartRFQ

3410.0022.01

SCHURTER Inc.In Stock: 10103410.0022.01 Datasheet

UpgradeRFQ

3410.0022.02

SCHURTER Inc.In Stock: 16503410.0022.02 Datasheet

UpgradeRFQ

3-103-091

SCHURTER Inc.In Stock: 40553-103-091 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3-103-090 are classified based on packaging format and series designation while maintaining identical electrical performance:

Upgrade Substitutes (3410.0022.01, 3410.0022.02): These parts belong to the MGA series (versus MGA-A) and share all critical electrical parameters: 250 mA current rating, 125 V AC/DC voltage rating, fast-blow response, 50 A AC / 300 A DC breaking capacity, and identical physical dimensions. The key differentiators are packaging format (Strip for 3410.0022.01; Tape & Reel for 3410.0022.02) and extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). Melting I²t differs (0.0009 versus 0.00013), and DC cold resistance is specified (0.8 Ohms).

Parametric Equivalent (3-103-091): This part maintains identical electrical and thermal specifications to the 3-103-090, including the MGA-A series designation, 0.00013 melting I²t, and -55°C to 125°C operating temperature. The primary difference is packaging format (Cut Tape versus Tape & Reel). Both carry cURus and UL approvals.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select 3-103-091 when Cut Tape packaging is required. This part maintains all electrical parameters, thermal characteristics, and dual agency approvals (cURus, UL) identical to the 3-103-090.

For Extended Temperature Applications: Select 3410.0022.01 (Strip) or 3410.0022.02 (Tape & Reel) when operating temperature range must extend to 150°C. Both parts maintain the 250 mA / 125 V AC/DC rating and identical physical dimensions. Note that these parts carry cURus approval only; UL approval is not listed.

For Packaging Format Flexibility: The 3410.0022.02 provides Tape & Reel packaging identical to the main part while offering extended temperature capability. The 3410.0022.01 offers Strip packaging for applications where bulk component handling is preferred.

All substitute parts are active products with confirmed inventory availability and maintain ROHS3 compliance and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can 3-103-091 be used as a direct replacement for 3-103-090? A: Yes. Both parts share identical electrical ratings (250 mA, 125 V AC/DC), response time (fast-blow), breaking capacity (50 A AC / 300 A DC), physical dimensions, operating temperature range (-55°C to 125°C), and dual agency approvals (cURus, UL). The only difference is packaging format: 3-103-090 is supplied in Tape & Reel, while 3-103-091 is supplied in Cut Tape.

Q: What is the difference between the MGA-A series (3-103-090, 3-103-091) and the MGA series (3410.0022.01, 3410.0022.02)? A: The MGA series parts offer an extended operating temperature range of -55°C to 150°C compared to -55°C to 125°C for MGA-A. The melting I²t value also differs (0.0009 for MGA versus 0.00013 for MGA-A). All other electrical parameters remain identical. MGA-A parts carry both cURus and UL approvals, while MGA parts carry cURus approval only.

Q: Which substitute should I select if my application requires Tape & Reel packaging and extended temperature operation? A: Select 3410.0022.02. This part provides Tape & Reel packaging identical to the 3-103-090 while extending the operating temperature range to 150°C. Verify that cURus approval meets your application requirements, as UL approval is not listed for this part.

Q: Are all substitute parts physically compatible with the original design? A: Yes. All substitute parts maintain the identical 2-SMD, Square End Block package and physical dimensions of 0.126" L x 0.061" W x 0.061" H (3.20mm x 1.55mm x 1.55mm). PCB footprints and mounting requirements are identical.

Q: What compliance certifications apply to each part? A: The 3-103-090 and 3-103-091 carry cURus and UL approvals. The 3410.0022.01 and 3410.0022.02 carry cURus approval only. All parts are ROHS3 compliant and REACH unaffected.