SF-1206SP300-2 Equivalent & Substitute Parts

Part Overview

The SF-1206SP300-2 is a 3A, 32VDC surface mount board mount fuse in 1206 (3216 Metric) package format, manufactured by Bourns Inc. under the SinglFuse™ SF-1206SP series. This component is classified as Active product status and is designed for applications requiring slow blow fuse protection in compact surface mount configurations. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling design flexibility and supply chain optimization.

Substiute Parts

SF-1206SP300-2

Bourns Inc.In Stock: 2543SF-1206SP300-2 Datasheet

Current PartRFQ

SF-1206S300-2

Bourns Inc.In Stock: 20386SF-1206S300-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF-1206SP300-2 is determined by strict equivalence across the following critical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating (DC): 32 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: 50A (exact match required)
• Operating Temperature Range: -20°C ~ 105°C (exact match required)
• Physical Dimensions: 0.122" L x 0.061" W x 0.024" H (exact match required)
• Compliance: ROHS3 Compliant, UL Approved (exact match required)

The SF-1206S300-2 meets all substitution criteria as a parametric equivalent within the SinglFuse™ product family.

Parameter Comparison

Engineering Selection Recommendations

Both the SF-1206SP300-2 and SF-1206S300-2 are Active status products manufactured by Bourns Inc. and carry identical electrical and mechanical specifications for fuse protection applications. Both components are ROHS3 Compliant and UL Approved, meeting regulatory requirements for industrial and commercial applications. Selection between these parts is determined by packaging requirements: the SF-1206SP300-2 is supplied in Tape & Reel (TR) format, while the SF-1206S300-2 is available in Cut Tape (CT) and Digi-Reel® formats. The difference in Melting I²t values (1.285 versus 0.933) reflects thermal response characteristics within the slow blow classification and does not affect substitution eligibility when electrical and mechanical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can SF-1206S300-2 be used as a direct replacement for SF-1206SP300-2?

A: Yes. Both parts are parametric equivalents with identical current rating (3A), voltage rating (32VDC), response time (Slow Blow), package format (1206), mounting type (Surface Mount), breaking capacity (50A), operating temperature range (-20°C ~ 105°C), and physical dimensions. Both are ROHS3 Compliant and UL Approved.

Q: What is the difference between these two parts?

A: The primary difference is packaging format. SF-1206SP300-2 is supplied in Tape & Reel (TR), while SF-1206S300-2 is supplied in Cut Tape (CT) and Digi-Reel® formats. Additionally, the Melting I²t values differ (1.285 versus 0.933), representing thermal response variations within the slow blow fuse classification.

Q: Are there any compatibility concerns when substituting between these parts?

A: No compatibility concerns exist. Both parts share identical electrical ratings, mechanical dimensions, mounting specifications, and regulatory approvals. Substitution is valid for all applications where the SF-1206SP300-2 is specified.

Q: Which part should be selected for new designs?

A: Selection should be based on packaging requirements and supply chain availability. Both parts are Active status and equally suitable for new designs. Verify packaging format compatibility with your assembly process before selection.

Q: Do these parts require any special handling or storage considerations?

A: Both parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no special moisture control requirements during storage or handling.