SCHURTER 3-103-131 Equivalent & Substitute Parts

Part Overview

The SCHURTER 3-103-131 is a 5 A, 32 V AC/DC surface mount board mount fuse in 2-SMD, Square End Block package configuration. This component is classified as Active product status and is designed for applications requiring fast-blow fuse protection in compact surface mount implementations. Substitute parts are identified to address specific application requirements, particularly where enhanced DC voltage ratings or alternative packaging formats are necessary for system compatibility.

Substiute Parts

3-103-131

SCHURTER Inc.In Stock: 30813-103-131 Datasheet

Current PartRFQ

3410.0240.02

SCHURTER Inc.In Stock: 22303410.0240.02 Datasheet

UpgradeRFQ

3410.0240.03

SCHURTER Inc.In Stock: 100403410.0240.03 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3-103-131 are qualified based on the following critical parameters that determine functional interchangeability:

Maintained Parameters (Identical):

• Current Rating: 5 A
• Voltage Rating - AC: 32 V
• Response Time: Fast Blow
• Mounting Type: Surface Mount
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Package / Case: 2-SMD, Square End Block
• Breaking Capacity @ Rated Voltage: 50 A
• Physical Dimensions: 0.126" L x 0.061" W x 0.061" H (3.20mm x 1.55mm x 1.55mm)
• RoHS Status: ROHS3 Compliant

Modified Parameters (Upgrade Characteristics):

• Voltage Rating - DC: Increased from 32 V to 125 V
• Operating Temperature Range: Extended from -55°C ~ 125°C to -55°C ~ 150°C
• Packaging Format: Changed from Cut Tape (CT) to Tape & Reel (TR)
• Approval Agency: Maintained cURus certification

The substitute parts 3410.0240.02 and 3410.0240.03 provide enhanced DC voltage capability while maintaining all critical AC/DC current and response characteristics. These parts are suitable for applications requiring higher DC voltage margins or extended thermal operating ranges.

Parameter Comparison

Engineering Selection Recommendations

Selection between the main part 3-103-131 and substitute parts 3410.0240.02 or 3410.0240.03 is determined by application voltage requirements and thermal operating conditions:

Select 3-103-131 when:

• DC voltage requirement is 32 V or lower
• Operating temperature range does not exceed -55°C to 125°C
• Cut Tape packaging format is specified for assembly processes

Select 3410.0240.02 or 3410.0240.03 when:

• DC voltage requirement exceeds 32 V and reaches up to 125 V
• Extended thermal operating range to 150°C is required
• Tape & Reel packaging format is compatible with production equipment

Both substitute parts maintain Active product status and cURus certification. The 3410.0240.03 variant provides higher inventory availability (9937 Pcs) compared to 3410.0240.02 (2151 Pcs).

Frequently Asked Questions (FAQ)

Q: Can 3410.0240.02 or 3410.0240.03 be used as direct replacements for 3-103-131 in all applications?

A: Direct substitution is valid only when the application circuit operates at DC voltages up to 125 V and does not require the specific Cut Tape packaging format. The enhanced DC voltage rating of the substitute parts does not degrade performance in lower voltage applications. Tape & Reel packaging requires compatible pick-and-place equipment.

Q: What is the difference between 3410.0240.02 and 3410.0240.03?

A: Both parts are electrically and mechanically identical. The primary difference is inventory availability: 3410.0240.03 has 9937 Pcs in stock versus 2151 Pcs for 3410.0240.02. Both are supplied in Tape & Reel format and share identical electrical specifications.

Q: Are there any thermal performance differences between the main part and substitutes?

A: The substitute parts support an extended operating temperature range of -55°C to 150°C compared to -55°C to 125°C for the main part. The Melting I²t value increases from 0.205 to 0.23, indicating slightly different thermal response characteristics. Both maintain Fast Blow response classification.

Q: Does the packaging format change affect circuit board compatibility?

A: Packaging format (Cut Tape versus Tape & Reel) affects only the supply and assembly process, not circuit board compatibility. The physical footprint and electrical interface remain identical across all three part numbers.

Q: Are all three parts RoHS and REACH compliant?

A: All three parts are ROHS3 Compliant and REACH Unaffected. Approval certifications include cURus for all parts, with the main part additionally holding UL certification.