SCHURTER 7010.9840.53 Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The SCHURTER 7010.9840.53 is a 2.5 A ceramic surface mount cartridge fuse with fast blow response time. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The part operates as an AC/DC fuse cartridge in a non-standard form factor and is currently available with 819 pieces in stock from original inventory.

Substiute Parts

7010.9840.53

SCHURTER Inc.In Stock: 9097010.9840.53 Datasheet

Current PartRFQ

7010.9840.57

SCHURTER Inc.In Stock: 12167010.9840.57 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7010.9840.53 is based on the following critical parameters that must remain constant:

Mandatory Matching Parameters:

• Current Rating: 2.5 A
• Fuse Type: Cartridge, Ceramic
• Mounting Type: Surface Mount
• Response Time: Fast Blow
• Series: 172876
• Manufacturer: SCHURTER Inc.

The SCHURTER 7010.9840.57 qualifies as a direct substitute because it maintains all mandatory parameters while providing additional specification detail and active product status. The substitute part adds defined voltage ratings (125 V AC / 125 V DC), operating temperature range (-55°C ~ 125°C), and regulatory compliance certifications (cURus, RoHS3, REACH Unaffected) that were not specified in the original part documentation.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 7010.9840.57 is the appropriate substitute for the obsolete SCHURTER 7010.9840.53. Selection is based on the following engineering criteria:

Product Status: The main part is classified as obsolete, while the substitute maintains active product status with SCHURTER Inc., ensuring continued availability and manufacturing support.

Electrical Equivalence: Both parts maintain identical current ratings (2.5 A), fuse type (ceramic cartridge), and response characteristics (fast blow). The substitute provides explicit voltage specifications (125 V AC / 125 V DC) and breaking capacity (300 A) that define the operational envelope.

Regulatory Compliance: The substitute carries cURus approval certification and is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for component procurement and deployment.

Physical Compatibility: Both parts share identical mounting type (surface mount), package form (non-standard cartridge), and series designation (172876), confirming mechanical and electrical socket compatibility.

Inventory Availability: The substitute part maintains higher stock levels (1126 pieces) compared to the obsolete part (819 pieces), supporting production continuity.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 7010.9840.57 be used as a direct replacement for the 7010.9840.53 in existing designs?

A: Yes. Both parts share identical current ratings, fuse type, mounting configuration, and response time. The substitute is mechanically and electrically compatible with the original part's socket and circuit requirements.

Q: What is the significance of the voltage ratings specified in the substitute part?

A: The 125 V AC / 125 V DC ratings define the maximum voltage at which the fuse will operate within its specified breaking capacity (300 A). These ratings were not documented in the original part specification but are standard for this fuse series.

Q: Does the substitute part meet current regulatory standards?

A: Yes. The SCHURTER 7010.9840.57 carries cURus certification, is RoHS3 compliant, and is REACH unaffected, meeting current regulatory requirements for component procurement and use in regulated applications.

Q: Are there any dimensional differences between the two parts?

A: The substitute part specifies dimensions of 0.079" diameter by 0.276" length (2.00mm x 7.00mm). The original part dimensions were not documented. Both parts use identical non-standard cartridge packaging within the 172876 series.

Q: What is the melting I²t value and why is it relevant?

A: The melting I²t of 0.91 represents the thermal energy required to melt the fuse element. This parameter defines the fuse's response to overcurrent conditions and is consistent with fast blow ceramic fuse characteristics.

Q: Should the 7010.9840.53 be phased out in favor of the 7010.9840.57?

A: The obsolete status of the 7010.9840.53 indicates that SCHURTER Inc. has discontinued production. For new designs and production continuity, the SCHURTER 7010.9840.57 should be specified as the active equivalent.