SCHURTER 7010.2440 Equivalent & Substitute Parts

Part Overview

The SCHURTER 7010.2440 is a 2.5A 125VAC fast-blow glass cartridge fuse requiring a holder for installation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing maintenance and new designs. The non-standard cartridge dimensions (0.185" Dia x 0.630" L) and specific voltage rating define the substitution parameters for this product category.

Substiute Parts

7010.2440

SCHURTER Inc.In Stock: 7987010.2440 Datasheet

Current PartRFQ

022502.5HXP

Littelfuse Inc.In Stock: 1426022502.5HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SCHURTER 7010.2440 is determined by the following critical parameters:

• Current Rating: 2.5 A (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Voltage Rating - AC: Minimum 125 V (equal or higher acceptable)
• Mounting Type: Requires Holder (exact match required)

The Littelfuse 022502.5HXP qualifies as a substitute based on matching current rating, fuse type, response time, and mounting requirements. The substitute provides higher AC voltage rating (250 V) and additional DC voltage capability (125 V DC), which are compatible with the original application parameters. Physical dimensions differ slightly but remain within acceptable cartridge holder tolerances for the 2AG/5mm x 15mm standard form factor.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 022502.5HXP is the qualified substitute for the obsolete SCHURTER 7010.2440. Selection is based on:

• Identical current rating and fast-blow response characteristics
• Higher AC voltage rating (250 V vs. 125 V) provides enhanced safety margin
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance maintained across both components
• Approval certifications (CE, CSA, PSE, UL) on the substitute provide broader regulatory coverage
• Extended operating temperature range (-55°C ~ 125°C) offers greater environmental flexibility

Physical dimension differences are minor and compatible with standard 2AG cartridge holder specifications. The substitute's improved breaking capacity and lower melting I²t value indicate superior performance characteristics within the same current class.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 022502.5HXP directly replace the SCHURTER 7010.2440 in existing designs?

A: Yes, provided the cartridge holder accommodates the 2AG 5mm x 15mm form factor. The substitute's slightly smaller dimensions (0.177" Dia x 0.570" L) are compatible with standard 2AG holders. Verify holder specifications before installation.

Q: What is the significance of the higher voltage rating on the substitute?

A: The Littelfuse part is rated for 250 VAC and 125 VDC, compared to the original 125 VAC rating. This higher voltage rating is compatible with the original application and provides additional safety margin. The current rating (2.5 A) and response time (fast blow) remain identical, which are the primary protection parameters.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The Littelfuse substitute carries additional approval certifications (CE, CSA, PSE, UL) compared to the SCHURTER original, which enhances regulatory coverage for international applications.

Q: How do the melting I²t values differ, and does this affect substitution?

A: The SCHURTER part has a melting I²t of 3.4, while the Littelfuse substitute is 2.68. Both values indicate fast-blow characteristics. The lower I²t on the substitute means it will respond slightly faster to overcurrent conditions, which is acceptable for protection applications and does not compromise compatibility.

Q: What holder type is required for the Littelfuse 022502.5HXP?

A: The Littelfuse part requires a 2AG cartridge holder designed for 5mm x 15mm fuses. Verify that existing holder specifications match this standard before substitution.