SCHURTER 7010.7120.39 Board Mount Fuse Equivalent & Substitute Parts

Part Overview

The SCHURTER 7010.7120.39 is a 4A 125VAC board mount fuse with axial through-hole mounting. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications. The fuse features fast-blow response characteristics and is rated for 300A breaking capacity at rated voltage. Locating functionally equivalent substitutes ensures design continuity and supply chain reliability for applications requiring this specific electrical and mechanical configuration.

Substiute Parts

7010.7120.39

SCHURTER Inc.In Stock: 12157010.7120.39 Datasheet

Current PartRFQ

7010.7120.47

SCHURTER Inc.In Stock: 7147010.7120.47 Datasheet

SimilarRFQ

7010.7120.13

SCHURTER Inc.In Stock: 10197010.7120.13 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SCHURTER 7010.7120.39 is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Current Rating: 4 A
• Voltage Rating (AC): 125 V
• Response Time: Fast Blow
• Mounting Type: Through Hole
• Package / Case: Cartridge, Non-Standard (Axial)
• Size / Dimension: 0.093" Dia x 0.315" L (2.36mm x 8.00mm)
• Breaking Capacity @ Rated Voltage: 300A
• Melting I²t: 4
• Operating Temperature Range: -55°C ~ 85°C

All identified substitute parts maintain identical electrical performance and mechanical compatibility with the original component. Substitutes are selected from the SCHURTER 172322 series, ensuring design continuity and functional interchangeability in board mount fuse applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SCHURTER 7010.7120.13

The 7010.7120.13 is the recommended substitute for the obsolete 7010.7120.39. This part maintains complete electrical and mechanical equivalence across all critical parameters. The 7010.7120.13 offers the following advantages:

• Active product status with confirmed inventory availability (985 Pcs)
• ROHS3 compliance and REACH unaffected status
• Extended voltage rating specification (125V AC and 125V DC) providing broader application compatibility
• Identical dimensional, electrical, and thermal characteristics
• CSA and UR regulatory approvals

Secondary Substitute: SCHURTER 7010.7120.47

The 7010.7120.47 provides an alternative substitute with identical electrical and mechanical specifications. This part is active and maintains full parametric equivalence. Selection between 7010.7120.13 and 7010.7120.47 may be determined by packaging requirements, inventory availability, or supply chain considerations, as both parts are functionally interchangeable.

Both substitute parts are suitable for direct replacement in applications originally designed for the 7010.7120.39 without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the 7010.7120.47 be used as a direct replacement for the 7010.7120.39?

A: Yes. The 7010.7120.47 maintains identical electrical ratings (4A, 125VAC), response time (Fast Blow), breaking capacity (300A), and physical dimensions (0.093" Dia x 0.315" L). Both parts are through-hole mounted axial cartridge fuses in the SCHURTER 172322 series and are functionally interchangeable.

Q: What is the difference between 7010.7120.13 and 7010.7120.47?

A: Both parts are electrically and mechanically equivalent to the original 7010.7120.39. The primary difference is that 7010.7120.13 specifies dual voltage ratings (125V AC and 125V DC), while 7010.7120.47 specifies 125V AC only. The 7010.7120.13 is available in bulk packaging, whereas 7010.7120.47 packaging is not specified. Both are ROHS3 compliant and REACH unaffected.

Q: Are there any regulatory compliance differences between the substitute parts?

A: The 7010.7120.13 carries CSA and UR approvals. The 7010.7120.47 carries CSA, GAM T1, and UR approvals. Both substitutes are ROHS3 compliant and REACH unaffected. The original 7010.7120.39 carried CSA, GAM T1, and UR approvals. Regulatory requirements for your specific application determine which substitute is appropriate.

Q: Can I use the 7010.7120.13 in a DC application?

A: The 7010.7120.13 is rated for 125V DC operation, making it suitable for DC applications. The 7010.7120.47 and original 7010.7120.39 are specified for AC operation only. If your application requires DC operation, the 7010.7120.13 is the appropriate substitute.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts share identical dimensions: 0.093" Dia x 0.315" L (2.36mm x 8.00mm). They are all through-hole mounted axial cartridge fuses and are mechanically interchangeable on the PCB.

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

A: The melting I²t value for all three parts is 4. This parameter defines the thermal energy required to melt the fuse element and is critical for coordinating fuse protection with circuit design. Identical I²t values ensure equivalent protection characteristics across all substitute parts.

Q: Why is the original 7010.7120.39 obsolete?

A: Product obsolescence is determined by the manufacturer. The active substitutes 7010.7120.13 and 7010.7120.47 provide continued availability of functionally equivalent components for new designs and replacement applications.