SCHURTER 7010.6400.39 Board Mount Axial Fuse Equivalent & Substitute Parts

Part Overview

The SCHURTER 7010.6400.39 is a 3 A, 125 V AC/DC board mount axial fuse with fast blow response characteristics. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The fuse is designed for through-hole mounting applications with a cartridge, non-standard (axial) package configuration.

Key Parameters

Parameter	Value
Current Rating	3 A
Voltage Rating (AC)	125 V
Voltage Rating (DC)	125 V
Response Time	Fast Blow
Mounting Type	Through Hole
Fuse Type	Board Mount (Cartridge Style Excluded)
Package / Case	Cartridge, Non-Standard (Axial)
Breaking Capacity @ Rated Voltage	300 A
Melting I²t	2.4
Operating Temperature Range	-55°C ~ 85°C
Size / Dimension	0.093" Dia x 0.315" L (2.36mm x 8.00mm)

Substitute Part Grouping Explanation

Substitution of the SCHURTER 7010.6400.39 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Parameters:

Current Rating: 3 A
Voltage Rating (AC): 125 V
Voltage Rating (DC): 125 V
Response Time: Fast Blow
Breaking Capacity @ Rated Voltage: 300 A
Melting I²t: 2.4

Mechanical Parameters:

Mounting Type: Through Hole
Fuse Type: Board Mount (Cartridge Style Excluded)
Package / Case: Cartridge, Non-Standard (Axial)
Size / Dimension: 0.093" Dia x 0.315" L (2.36mm x 8.00mm)
Operating Temperature Range: -55°C ~ 85°C

All identified substitute parts maintain identical values across these parameters, ensuring direct functional and physical compatibility.

Parameter Comparison

Parameter	7010.6400.39 (Main)	7010.6400.47 (Substitute)	7010.6400.13 (Substitute)
Current Rating (Amps)	3 A	3 A	3 A
Voltage Rating - AC	125 V	125 V	125 V
Voltage Rating - DC	125 V	125 V	125 V
Response Time	Fast Blow	Fast Blow	Fast Blow
Mounting Type	Through Hole	Through Hole	Through Hole
Fuse Type	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)
Package / Case	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)	Cartridge, Non-Standard (Axial)
Breaking Capacity @ Rated Voltage	300 A	300 A	300 A
Melting I²t	2.4	2.4	2.4
Operating Temperature Range	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Size / Dimension	0.093" Dia x 0.315" L (2.36mm x 8.00mm)	0.093" Dia x 0.315" L (2.36mm x 8.00mm)	0.093" Dia x 0.315" L (2.36mm x 8.00mm)
Product Status	Obsolete	Active	Active
Series	172321	172321	172321

Engineering Selection Recommendations

Primary Substitute: SCHURTER 7010.6400.47

The 7010.6400.47 is the recommended substitute for the obsolete 7010.6400.39. This part maintains active product status and provides full electrical and mechanical equivalence. The 7010.6400.47 carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for new designs and production applications.

Secondary Substitute: SCHURTER 7010.6400.13

The 7010.6400.13 provides parametric equivalence with identical electrical and mechanical specifications. This part is supplied in bulk packaging and maintains active product status with ROHS3 compliance and REACH unaffected status. Selection between 7010.6400.47 and 7010.6400.13 depends on packaging requirements and procurement volume specifications.

Both substitute parts are members of the SCHURTER 172321 series and are manufactured by SCHURTER Inc., ensuring design continuity and supply chain consistency.

Frequently Asked Questions (FAQ)

Q: Can the 7010.6400.47 be used as a direct replacement for the 7010.6400.39?

A: Yes. The 7010.6400.47 maintains identical electrical ratings (3 A, 125 V AC/DC, fast blow response), mechanical dimensions (0.093" Dia x 0.315" L), mounting configuration (through hole, board mount axial), and performance characteristics (300 A breaking capacity, 2.4 melting I²t). Direct substitution is supported without circuit modification.

Q: What is the difference between 7010.6400.47 and 7010.6400.13?

A: Both parts are electrically and mechanically equivalent. The primary difference is packaging: 7010.6400.47 is supplied in standard packaging, while 7010.6400.13 is supplied in bulk packaging. Both maintain active product status and current regulatory compliance.

Q: Why is the 7010.6400.39 classified as obsolete?

A: The 7010.6400.39 has been discontinued by SCHURTER Inc. The active equivalents 7010.6400.47 and 7010.6400.13 provide identical functionality and are recommended for all new designs and ongoing production requirements.

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

A: The substitute parts 7010.6400.47 and 7010.6400.13 carry ROHS3 compliance and REACH unaffected status. The original 7010.6400.39 does not list approval agency certification. Both substitutes maintain the same GAM T1 approval agency classification where applicable.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. All parts in this equivalence group are rated for 125 V AC and 125 V DC operation, supporting dual-voltage applications within the specified voltage and current parameters.

Q: What is the significance of the 2.4 melting I²t value?

A: The melting I²t of 2.4 defines the thermal energy required to melt the fuse element. This parameter is identical across all equivalent parts, ensuring consistent protection characteristics and response behavior in circuit applications.

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

A: Yes. All parts maintain the same axial cartridge dimensions of 0.093" diameter by 0.315" length (2.36mm x 8.00mm), ensuring compatibility with existing through-hole mounting footprints and mechanical assemblies.

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