SF-1206SP100-2 Equivalent & Substitute Parts

Part Overview

The SF-1206SP100-2 is a 1 A, 63 V DC surface mount board mount fuse in 1206 (3216 Metric) package format, manufactured by Bourns Inc. under the SinglFuse™ SF-1206SP series. This slow blow fuse is designed for circuit protection in compact surface mount applications with a breaking capacity of 50 A at rated voltage. The part is currently active in production with full UL approval and ROHS3 compliance. Equivalent substitute parts are identified when electrical and mechanical parameters align within the allowable specifications for this fuse category, enabling component interchangeability in board assembly and design revision scenarios.

Substiute Parts

SF-1206SP100-2

Bourns Inc.In Stock: 5270SF-1206SP100-2 Datasheet

Current PartRFQ

SF-1206S100-2

Bourns Inc.In Stock: 10372SF-1206S100-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SF-1206SP100-2 are identified based on strict equivalence of the following critical parameters:

• Current Rating: 1 A
• Voltage Rating - DC: 63 V
• Package / Case: 1206 (3216 Metric)
• Mounting Type: Surface Mount
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Response Time: Slow Blow
• Breaking Capacity @ Rated Voltage: 50 A
• Physical Dimensions: 0.122" L x 0.061" W x 0.024" H
• Operating Temperature Range: -20°C ~ 105°C
• Approval Agency: UL
• RoHS Status: ROHS3 Compliant

The SF-1206S100-2 meets all these criteria and is classified as a parametric equivalent. Both parts belong to the Bourns SinglFuse™ family and share identical electrical and mechanical specifications, differing only in internal design characteristics (melting I²t and DC cold resistance values) that do not affect functional interchangeability in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SF-1206SP100-2 and SF-1206S100-2 are active production parts manufactured by Bourns Inc. with full UL approval and ROHS3 compliance. Selection between these parts is based on availability and inventory status. The SF-1206S100-2 currently maintains higher inventory levels (10,300 pcs) compared to the SF-1206SP100-2 (5,192 pcs), making it a viable alternative for procurement planning. Both parts satisfy identical electrical and mechanical requirements for 1 A, 63 V DC surface mount fuse applications in 1206 package format. Component selection should prioritize availability and lead time considerations while maintaining compliance with circuit protection specifications.

Frequently Asked Questions (FAQ)

Q: Can SF-1206S100-2 be used as a direct replacement for SF-1206SP100-2?

A: Yes. Both parts share identical current rating (1 A), voltage rating (63 V DC), package format (1206), mounting type (surface mount), response time (slow blow), and breaking capacity (50 A). Physical dimensions and operating temperature ranges are identical. Both carry UL approval and ROHS3 compliance.

Q: What is the difference between the SF-1206SP100-2 and SF-1206S100-2?

A: The parts differ in melting I²t values (0.134 vs. 0.098) and DC cold resistance specification (not specified vs. 0.108 Ohms). These internal design characteristics do not affect functional interchangeability in circuit protection applications where current rating and voltage rating are the primary selection criteria.

Q: Are both parts compatible with existing PCB layouts?

A: Yes. Both parts use identical 1206 (3216 Metric) package format with matching physical dimensions of 0.122" L x 0.061" W x 0.024" H. No PCB layout modifications are required for substitution.

Q: What certifications apply to both substitute parts?

A: Both parts carry UL approval, ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8536.10.0040.

Q: Are there any temperature or environmental limitations for substitution?

A: Both parts operate across the identical temperature range of -20°C to 105°C with MSL 1 (Unlimited) moisture sensitivity, indicating no environmental restrictions for substitution in standard circuit protection applications.