SCHURTER 7040.3190 Equivalent & Substitute Parts

Part Overview

The SCHURTER 7040.3190 is a 10A 125VAC slow-blow glass cartridge fuse in 5x20mm form factor, designed for applications requiring holder-mounted protection. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

The primary reason for seeking substitutes is the obsolete product status, which limits availability for new orders and long-term supply chain reliability. Active equivalent parts with comparable electrical characteristics and identical mechanical form factors are available to ensure continuity in fuse protection applications.

Substiute Parts

7040.3190

SCHURTER Inc.In Stock: 10767040.3190 Datasheet

Current PartRFQ

0001.2514

SCHURTER Inc.In Stock: 230450001.2514 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7040.3190 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Current Rating: 10 A (exact match required)
• Package / Case: 5mm x 20mm (mechanical compatibility with existing holders)
• Mounting Type: Requires Holder (same installation method)
• Response Time: Slow Blow (identical protection characteristic)

Acceptable Variation Parameters:

• Voltage Rating - AC: The substitute part (0001.2514) operates at 250V AC, which exceeds the 125V AC requirement and is therefore suitable for applications rated at or below 125V AC
• Fuse Type: Substitution from glass to ceramic cartridge is permissible when all other parameters align, as both types provide equivalent protection function in the same form factor
• Breaking Capacity: Higher breaking capacity in the substitute (1kA AC vs. 50A) provides enhanced protection margin
• Operating Temperature Range: Extended range (-55°C ~ 125°C vs. -40°C ~ 70°C) accommodates broader environmental conditions

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0001.2514 is a direct functional substitute for the obsolete 7040.3190 based on the following engineering criteria:

Electrical Compatibility: Both parts share identical 10A current rating and slow-blow response time. The substitute's higher AC voltage rating (250V vs. 125V) ensures safe operation in applications designed for the original part. The addition of 150V DC rating in the substitute expands application flexibility without compromising AC circuit protection.

Mechanical Compatibility: Identical 5x20mm form factor and holder-mount design ensure drop-in replacement capability without modification to existing fuse holders or circuit board layouts.

Regulatory & Compliance: Both parts are ROHS3 compliant and REACH unaffected. The substitute carries expanded approval certifications (cURus, VDE) compared to the original part (UR), providing enhanced regulatory coverage for international applications.

Product Availability: The substitute is classified as active with substantial inventory (22,984 pcs), ensuring reliable long-term supply compared to the obsolete status of the original part.

Thermal Performance Consideration: The substitute exhibits lower melting I²t (400 vs. 2200), indicating faster thermal response. This characteristic is acceptable for slow-blow fuse applications and may provide improved protection in circuits sensitive to transient overcurrent conditions.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0001.2514 be used as a direct replacement for the 7040.3190 in existing designs?

A: Yes. Both parts maintain identical current rating (10A), response time (slow-blow), and mechanical form factor (5x20mm). The substitute is mechanically and electrically compatible with existing fuse holders and circuit designs rated for 125V AC operation.

Q: What is the difference between glass and ceramic cartridge fuses?

A: Glass and ceramic are different fuse element materials. Both provide equivalent protection function in the same form factor. Ceramic fuses typically offer higher breaking capacity and extended temperature ranges, as demonstrated by the 0001.2514 substitute.

Q: Why does the substitute have a higher voltage rating (250V AC vs. 125V AC)?

A: Higher voltage rating indicates the fuse can safely operate in circuits with higher voltage stress without degradation. A 250V-rated fuse is suitable for 125V applications and provides additional safety margin. This is standard practice in component substitution.

Q: Is the lower melting I²t value (400 vs. 2200) a concern?

A: No. Lower melting I²t indicates faster thermal response to overcurrent conditions. For slow-blow fuses, this characteristic is acceptable and may provide improved protection sensitivity in certain circuit applications. The 10A current rating remains the primary protection parameter.

Q: Are there any temperature range limitations with the substitute?

A: The substitute operates across -55°C to 125°C, which exceeds the original part's range (-40°C to 70°C). This extended range accommodates broader environmental conditions and is fully compatible with applications designed for the original part's temperature specifications.

Q: What certifications apply to the substitute part?

A: The 0001.2514 carries cURus and VDE approvals, providing broader regulatory coverage than the original part's UR certification. Both parts are ROHS3 compliant and REACH unaffected.