SCHURTER 7030.3240 Equivalent & Substitute Parts

Part Overview

The SCHURTER 7030.3240 is a 200 mA glass cartridge fuse rated for 220 V AC and 32 V DC operation in a 5mm x 20mm form factor. This fuse is designed for applications requiring slow-blow response characteristics and is mounted within a separate holder assembly. The part is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

7030.3240

SCHURTER Inc.In Stock: 10537030.3240 Datasheet

Current PartRFQ

0034.5036

SCHURTER Inc.In Stock: 20540034.5036 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7030.3240 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Current Rating: 200 mA (exact match required)
• Fuse Type: Cartridge, Glass (form factor and construction type)
• Package / Case: 5mm x 20mm (physical dimensions for holder compatibility)
• Response Time: Slow Blow (thermal response characteristic)
• Mounting Type: Requires Holder (installation method)

Voltage Compatibility Criteria: The substitute part must support the application voltage requirements. The original part operates at 220 V AC and 32 V DC. A substitute with higher voltage ratings (250 V AC) provides adequate margin for the original application while maintaining the same current and form factor specifications.

The SCHURTER 0034.5036 meets all mandatory matching criteria and provides enhanced voltage capability, making it a direct functional substitute for the obsolete 7030.3240.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 0034.5036 is the appropriate substitute for the obsolete SCHURTER 7030.3240 based on the following engineering factors:

Product Status: The 0034.5036 maintains active product status with current manufacturing and distribution support, whereas the 7030.3240 is obsolete and subject to availability constraints.

Electrical Compatibility: Both fuses share identical current ratings (200 mA) and response characteristics (Slow Blow). The substitute's 250 V AC rating exceeds the original 220 V AC requirement, providing operational margin within the same application envelope.

Physical Compatibility: Both components utilize the 5mm x 20mm cartridge form factor and require holder-based mounting, ensuring mechanical interchangeability within existing socket assemblies.

Thermal Performance: The substitute operates across an extended temperature range (-40°C ~ 85°C) compared to the original (-40°C ~ 70°C), providing enhanced thermal margin for industrial applications.

Regulatory Compliance: The 0034.5036 carries cURus certification (combined UL and CSA approval) and is RoHS3 compliant, meeting current regulatory requirements for component procurement.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0034.5036 be used as a direct replacement for the 7030.3240 in existing equipment?

A: Yes. Both fuses share identical current ratings (200 mA), response characteristics (Slow Blow), and physical dimensions (5mm x 20mm). The substitute's higher voltage rating (250 V AC versus 220 V AC) provides adequate margin for the original application without affecting circuit protection function.

Q: What is the significance of the different breaking capacity ratings (50A versus 35A)?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt at its rated voltage. The original part specifies 50A at rated voltage, while the substitute specifies 35A. Both values are within acceptable ranges for 200 mA fuses in standard circuit protection applications. Application-specific fault current analysis determines whether this difference impacts suitability.

Q: Are there physical dimension differences between the two fuses?

A: The original fuse measures 0.197" diameter x 0.787" length (5.00mm x 20.00mm). The substitute measures 0.205" diameter x 0.787" length (5.20mm x 20.00mm). The 0.20mm diameter increase remains within standard holder tolerances for 5mm x 20mm cartridge fuses and does not affect mechanical compatibility.

Q: What certifications apply to the substitute part?

A: The SCHURTER 0034.5036 carries cURus certification (combined UL and CSA approval) and is RoHS3 compliant. The original part carried UR certification. Both certifications are recognized for industrial and commercial fuse applications.

Q: Does the extended operating temperature range of the substitute affect circuit protection characteristics?

A: The substitute operates from -40°C to 85°C, compared to the original's -40°C to 70°C range. This extended upper temperature limit provides additional thermal margin but does not alter the fuse's response time classification (Slow Blow) or current rating (200 mA) within the specified operating envelope.

Q: What is the difference in melting I²t values between the two fuses?

A: The original fuse specifies 0.39 melting I²t, while the substitute specifies 1.73 melting I²t. This parameter indicates the thermal energy required to melt the fuse element. The higher value in the substitute reflects differences in element design while maintaining the same current rating and response classification. Application-specific transient current analysis determines whether this difference impacts circuit protection requirements.