SFM-120-01-S-S Equivalent & Substitute Parts

Part Overview

The SFM-120-01-S-S is a 20-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for board-to-board or cable applications. This connector features a 0.050" (1.27mm) pitch, through-hole solder termination, and gold-plated mating contacts rated for 3.2A per contact at 250VAC. The part is Active status and ROHS3 compliant, making it suitable for industrial and commercial applications requiring reliable interconnection in temperature ranges from -55°C to 125°C.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when inventory levels require sourcing alternatives, or when design flexibility permits the use of functionally compatible components within the same connector family.

Substiute Parts

SFM-120-01-S-S

Samtec Inc.In Stock: 866SFM-120-01-S-S Datasheet

Current PartRFQ

SFM-120-01-S-S-A

Samtec Inc.In Stock: 1154SFM-120-01-S-S-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFM-120-01-S-S is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Number of positions (20)
• Pitch specification (0.050" / 1.27mm)
• Mounting method (Through Hole)
• Termination type (Solder)
• Contact finish material (Gold)
• Electrical ratings (3.2A per contact, 250VAC minimum)
• Operating temperature range (-55°C to 125°C minimum)
• Compliance certifications (UL94 V-0, ROHS3)

The SFM-120-01-S-S-A qualifies as a direct substitute based on full alignment with these parameters. Both parts belong to the Tiger Eye™ SFM series and share identical mechanical and electrical specifications. The SFM-120-01-S-S-A includes a board guide feature, which represents an enhancement rather than a deviation from the base specification.

Parameter Comparison

Engineering Selection Recommendations

Both the SFM-120-01-S-S and SFM-120-01-S-S-A are Active status components with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on design requirements and application constraints:

The SFM-120-01-S-S provides the base connector configuration without additional mechanical features. The SFM-120-01-S-S-A includes a board guide feature, which enhances mechanical alignment during mating operations. This feature does not alter electrical performance or thermal characteristics.

Both parts are electrically and mechanically interchangeable within applications designed for the SFM-120 base product number. Current inventory levels show 1054 units available for the SFM-120-01-S-S-A compared to 756 units for the SFM-120-01-S-S, which may influence procurement decisions based on lead time and availability requirements.

Frequently Asked Questions (FAQ)

Q: Are the SFM-120-01-S-S and SFM-120-01-S-S-A electrically identical?

A: Yes. Both parts share identical electrical specifications including 3.2A per contact current rating, 250VAC voltage rating, and gold-plated mating contacts with 30.0µin (0.76µm) thickness. Operating temperature range, insulation material, and contact material are identical.

Q: What is the functional difference between these two part numbers?

A: The SFM-120-01-S-S-A includes a board guide feature. This is a mechanical enhancement that improves alignment during connector mating. It does not affect electrical performance, thermal ratings, or mechanical compatibility with standard mating connectors.

Q: Can I use the SFM-120-01-S-S-A as a direct replacement for the SFM-120-01-S-S in existing designs?

A: Yes. The SFM-120-01-S-S-A is a direct substitute. All critical parameters including pitch, position count, mounting type, termination method, and electrical ratings are identical. PCB layout and connector footprints are compatible.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 125°C and maintain the same UL94 V-0 flammability rating across this range.

Q: What compliance certifications apply to both parts?

A: Both the SFM-120-01-S-S and SFM-120-01-S-S-A are ROHS3 compliant and carry UL94 V-0 material flammability certification. Both are classified under ECCN EAR99 and HTSUS 8536.69.4040.