SCHURTER 7030.3140 Equivalent & Substitute Parts

Part Overview

The SCHURTER 7030.3140 is a 63 mA slow-blow glass cartridge fuse rated for 220 V AC and 125 V DC operation in a 5mm x 20mm form factor. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and component procurement. The fuse requires a dedicated holder for installation and is designed for applications requiring coordinated overcurrent protection across mixed AC/DC voltage environments.

Substiute Parts

7030.3140

SCHURTER Inc.In Stock: 10307030.3140 Datasheet

Current PartRFQ

0034.5031

SCHURTER Inc.In Stock: 11060034.5031 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7030.3140 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Current Rating: 63 mA (exact match required)
• Package / Case: 5mm x 20mm (physical form factor compatibility)
• Fuse Type: Cartridge, Glass (mechanical and electrical interface)
• Response Time: Slow Blow (thermal response characteristic)
• Mounting Type: Requires Holder (installation method)

Voltage Compatibility Consideration: The 7030.3140 operates at 220 V AC and 125 V DC. Substitute parts must maintain voltage ratings sufficient for the intended application circuit. The substitute identified (0034.5031) provides 250 V AC rating, which exceeds the original 220 V AC requirement and is therefore acceptable for AC applications. DC voltage rating differences must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0034.5031 is the identified substitute for the obsolete 7030.3140. Both components share identical current ratings (63 mA), response characteristics (slow blow), physical form factor (5mm x 20mm), and fuse type (cartridge, glass). Both are ROHS3 compliant and manufactured by SCHURTER Inc.

The 0034.5031 is currently in active production status, ensuring long-term availability for procurement and inventory management. The substitute provides a higher AC voltage rating (250 V versus 220 V), which is acceptable for applications originally specified for the 7030.3140 in AC circuits.

Differences in breaking capacity and melting I²t values reflect design variations between the D1TD and FTT 5x20 series. The substitute's expanded operating temperature range (-40°C ~ 85°C) provides additional thermal margin compared to the original part (-40°C ~ 70°C).

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0034.5031 directly replace the 7030.3140 in existing designs?

A: Yes, for applications operating within the specified parameters. Both components share the same current rating (63 mA), response time (slow blow), and physical dimensions (5mm x 20mm). The substitute's higher AC voltage rating (250 V) is compatible with circuits originally rated for 220 V AC. DC applications require verification that the circuit voltage does not exceed the substitute's DC rating.

Q: What are the key differences between these two fuses?

A: The primary differences are product status (0034.5031 is active; 7030.3140 is obsolete), voltage ratings (250 V AC for substitute versus 220 V AC for original), breaking capacity (35A for substitute versus 60A AC for original), and operating temperature range (85°C maximum for substitute versus 70°C for original). Both maintain identical current ratings and response characteristics.

Q: Are both fuses RoHS compliant?

A: Yes. Both the 7030.3140 and 0034.5031 are ROHS3 compliant, meeting environmental and material restriction requirements for electronic components.

Q: What holder compatibility should be considered?

A: Both fuses require a dedicated holder for installation and share the 5mm x 20mm form factor. Existing holders designed for the 7030.3140 are mechanically compatible with the 0034.5031 substitute.

Q: How do the melting I²t values differ, and what does this mean?

A: The 7030.3140 has a melting I²t of 0.35, while the 0034.5031 has 0.037. This indicates the substitute fuse has a lower thermal energy threshold before melting. This difference reflects design variations between the two series and should be considered in applications with specific thermal response requirements.