1206SFS700F/24-2 Equivalent & Substitute Parts

Part Overview

The 1206SFS700F/24-2 is a 7A 24VDC surface mount board mount fuse manufactured by Littelfuse Inc. in the 1206 (3216 Metric) package format. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part features slow blow response characteristics and is suitable for applications requiring overcurrent protection in 24V DC systems.

Substiute Parts

1206SFS700F/24-2

Littelfuse Inc.In Stock: 12291206SFS700F/24-2 Datasheet

Current PartRFQ

SF-1206SP700M-2

Bourns Inc.In Stock: 1037SF-1206SP700M-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1206SFS700F/24-2 is based on strict equivalence across the following critical parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating (DC): 24 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
• Breaking Capacity @ Rated Voltage: 60 A (exact match required)
• Melting I²t: 10 (exact match required)
• DC Cold Resistance: 0.01 Ohms (exact match required)

The substitute part SF-1206SP700M-2 manufactured by Bourns Inc. meets all critical electrical and mechanical parameters, enabling direct functional replacement in circuit designs originally specified for the 1206SFS700F/24-2.

Parameter Comparison

Engineering Selection Recommendations

The SF-1206SP700M-2 manufactured by Bourns Inc. is the qualified substitute for the obsolete 1206SFS700F/24-2. Selection of this substitute is supported by the following factors:

• All critical electrical parameters match exactly: 7A current rating, 24V DC voltage rating, slow blow response, 60A breaking capacity, and 10 melting I²t.
• Physical dimensions and package format are identical, ensuring PCB layout compatibility without redesign.
• Both components maintain ROHS3 compliance and MSL 1 rating, meeting environmental and handling requirements.
• The substitute part is in active production status, providing supply continuity and long-term availability.
• Operating temperature range of the substitute (-55°C ~ 150°C) exceeds the original specification (-55°C ~ 125°C), offering enhanced thermal margin.
• Standard Tape & Reel packaging is available for the substitute, supporting automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SF-1206SP700M-2 be used as a direct replacement for 1206SFS700F/24-2 without circuit modification?

A: Yes. The substitute part meets all critical electrical and mechanical specifications. No circuit modifications are required. PCB footprints are identical, and the component can be placed using existing assembly procedures.

Q: What is the primary reason for substitution?

A: The 1206SFS700F/24-2 is classified as obsolete. The SF-1206SP700M-2 provides equivalent functionality with active production status and assured long-term availability.

Q: Are there differences in operating temperature ranges?

A: The substitute part operates across -55°C ~ 150°C, compared to the original -55°C ~ 125°C. This represents an extended upper temperature limit and does not create compatibility issues.

Q: What packaging options are available for the substitute?

A: The SF-1206SP700M-2 is supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly.

Q: Do both parts carry the same regulatory certifications?

A: Both components are ROHS3 compliant and carry MSL 1 rating. The original part lists UL approval; the substitute does not specify approval agency in the provided data.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.126" L x 0.063" W x 0.038" H (3.20mm x 1.60mm x 0.97mm) in the 1206 (3216 Metric) package, ensuring identical PCB footprint compatibility.