SCHURTER 7010.9903.55 Surface Mount Fuse Equivalent & Substitute Parts

Part Overview

The SCHURTER 7010.9903.55 is a 375 mA surface mount board fuse in the MKF series, featuring a 2-SMD square end block package with fast blow response characteristics. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing production requirements, maintenance operations, and design continuity where this fuse type is specified in existing applications.

Substiute Parts

7010.9903.55

SCHURTER Inc.In Stock: 9667010.9903.55 Datasheet

Current PartRFQ

7010.9903.57

SCHURTER Inc.In Stock: 8787010.9903.57 Datasheet

SimilarRFQ

7010.9903.03

SCHURTER Inc.In Stock: 11487010.9903.03 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 7010.9903.55 are determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 375 mA
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Mounting Type: Surface Mount
• Package / Case: 2-SMD, Square End Block
• Response Time: Fast Blow
• Operating Temperature Range: -55°C ~ 85°C
• Size / Dimension: 0.276" L x 0.100" W x 0.100" H (7.00mm x 2.54mm x 2.54mm)
• Manufacturer: SCHURTER Inc.
• Series: MKF
• Approval Agency: cURus

The substitute parts listed below meet all mandatory matching parameters. The primary distinction between the main part and substitutes is product status and voltage rating specification. The main part (7010.9903.55) does not specify voltage ratings, while substitute parts include explicit voltage ratings of 125 V AC and 125 V DC.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes:

The parts 7010.9903.57 and 7010.9903.03 are direct functional equivalents to the obsolete 7010.9903.55. Both substitute parts are classified as active product status, ensuring ongoing availability and supply chain continuity.

7010.9903.57 (Tape & Reel Packaging): This substitute is supplied in Tape & Reel (TR) packaging format. Selection of this part is appropriate for high-volume production environments and automated assembly operations where tape and reel packaging provides manufacturing efficiency.

7010.9903.03 (Bulk Packaging): This substitute is supplied in bulk packaging format. Selection of this part is appropriate for lower-volume applications, prototype development, and environments where bulk packaging meets procurement and assembly requirements.

Compliance Considerations:

Both substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. Both parts maintain cURus approval agency certification consistent with the original part specification.

Voltage Rating Specification:

The substitute parts explicitly specify 125 V AC and 125 V DC voltage ratings. Applications requiring the original 7010.9903.55 must operate within these voltage parameters to ensure proper fuse operation and safety compliance.

Frequently Asked Questions (FAQ)

Q: Can 7010.9903.57 and 7010.9903.03 be used interchangeably with 7010.9903.55?

A: Yes. Both substitute parts meet all mandatory electrical and mechanical parameters. The primary difference is packaging format: 7010.9903.57 is supplied in Tape & Reel format, while 7010.9903.03 is supplied in bulk format. Selection between these substitutes depends on production volume and assembly process requirements.

Q: What is the significance of the voltage rating specification in the substitute parts?

A: The substitute parts specify 125 V AC and 125 V DC voltage ratings. These ratings define the maximum voltage at which the fuse operates safely and provides rated breaking capacity. Applications must operate within these voltage parameters.

Q: Why is the original part 7010.9903.55 classified as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The substitute parts 7010.9903.57 and 7010.9903.03 are active products providing equivalent functionality with current manufacturing support and regulatory compliance.

Q: Are there packaging considerations when switching from 7010.9903.55 to substitute parts?

A: Yes. The original part packaging format is not specified in available data. Substitute part 7010.9903.57 is supplied in Tape & Reel format suitable for automated assembly. Substitute part 7010.9903.03 is supplied in bulk format. Assembly process compatibility with the selected packaging format must be confirmed.

Q: Do the substitute parts maintain the same physical dimensions as the original part?

A: Yes. All parts share identical dimensions: 0.276" L x 0.100" W x 0.100" H (7.00mm x 2.54mm x 2.54mm). PCB footprint and mechanical fit are identical across all three parts.

Q: What is the breaking capacity specification for the substitute parts?

A: Both substitute parts specify 300A breaking capacity at rated voltage. This parameter is not specified for the original part 7010.9903.55.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing.