SF-1206SP080-2 Equivalent & Substitute Parts

Part Overview

The SF-1206SP080-2 is an 800 mA, 63 V DC board mount surface 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 surface mount applications with a breaking capacity of 50A at rated voltage. The part is currently active in production with full UL approval and ROHS3 compliance. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when design revisions require alternative qualified components within the same electrical and mechanical specifications.

Substiute Parts

SF-1206SP080-2

Bourns Inc.In Stock: 712SF-1206SP080-2 Datasheet

Current PartRFQ

SF-1206S080-2

Bourns Inc.In Stock: 6084SF-1206S080-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SF-1206S080-2 is identified as a parametric equivalent to the SF-1206SP080-2 based on strict alignment of the following critical substitution parameters:

Current Rating: Both parts are rated at 800 mA Voltage Rating (DC): Both parts are rated at 63 V Response Time: Both parts are classified as Slow Blow Package / Case: Both parts use 1206 (3216 Metric) surface mount package Mounting Type: Both parts are surface mount board mount fuses Fuse Type: Both parts are board mount (cartridge style excluded) Breaking Capacity @ Rated Voltage: Both parts have 50A breaking capacity Operating Temperature Range: Both parts operate from -20°C to 105°C Physical Dimensions: Both parts share identical dimensions of 0.122" L x 0.061" W x 0.024" H (3.10mm x 1.55mm x 0.60mm) Approval Agency: Both parts carry UL approval RoHS Status: Both parts are ROHS3 compliant

The substitute part belongs to the same SinglFuse™ base product family (SF-1206) and maintains full electrical and mechanical compatibility with the primary part number.

Parameter Comparison

Engineering Selection Recommendations

Both the SF-1206SP080-2 and SF-1206S080-2 are active production parts from Bourns Inc. with full UL approval and ROHS3 compliance. Selection between these parts is based on availability and inventory status rather than electrical or mechanical performance differences. The SF-1206S080-2 maintains higher inventory levels (6060 pcs vs. 685 pcs), making it suitable for high-volume procurement scenarios. Both parts satisfy identical circuit protection requirements for 800 mA, 63 V DC applications in surface mount 1206 package configurations. The minor difference in melting I²t values (0.072 vs. 0.068) falls within the tolerance band for slow blow fuse characteristics and does not affect functional equivalence for standard board mount applications. Direct substitution is permissible without design modification or re-qualification when switching between these part numbers.

Frequently Asked Questions (FAQ)

Q: Can SF-1206S080-2 be used as a direct replacement for SF-1206SP080-2 in existing designs?

A: Yes. Both parts share identical electrical ratings (800 mA, 63 V DC), response characteristics (Slow Blow), package format (1206 / 3216 Metric), and physical dimensions. Direct substitution is permissible without PCB layout changes or design re-qualification.

Q: What is the difference between the SF-1206SP and SF-1206S series designations?

A: The series designation reflects internal Bourns manufacturing variants within the SinglFuse™ product family. Both series maintain identical electrical and mechanical specifications for the 800 mA, 63 V DC rating. The difference does not affect functional performance or compatibility.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical UL approval, ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: What does the melting I²t difference (0.072 vs. 0.068) indicate?

A: Melting I²t represents the thermal energy required to melt the fuse element. The difference of 0.004 is within normal manufacturing tolerance for slow blow fuses and does not affect circuit protection performance or trip characteristics in standard applications.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes. Both parts are active production components with UL approval and full compliance certifications. The SF-1206S080-2 offers higher inventory availability (6060 pcs), making it suitable for sustained high-volume manufacturing requirements.

Q: Are there any thermal or environmental operating condition differences?

A: No. Both parts operate across the identical temperature range of -20°C to 105°C and maintain the same MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent performance in standard industrial and commercial environments.