SFMC-125-02-S-D-P Equivalent & Substitute Parts

Part Overview

The SFMC-125-02-S-D-P is a 50-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFMC series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated female socket contacts rated at 2.9A per contact. The part maintains active product status and is ROHS3 compliant with UL94 V-0 flammability rating. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

SFMC-125-02-S-D-P
Samtec Inc.In Stock: 1017SFMC-125-02-S-D-P Datasheet
SFMC-125-02-S-D-P
Current Part
SFMC-125-02-SM-D-K
Samtec Inc.In Stock: 928SFMC-125-02-SM-D-K Datasheet
SFMC-125-02-SM-D-K
Similar

Key Parameters

Parameter Value
Manufacturer Part Number SFMC-125-02-S-D-P
Manufacturer Samtec Inc.
Series Tiger Eye™ SFMC
Connector Type Receptacle
Contact Type Female Socket
Number of Positions 50
Pitch - Mating 0.050" (1.27mm)
Number of Rows 2
Row Spacing - Mating 0.050" (1.27mm)
Mounting Type Surface Mount
Termination Solder
Fastening Type Push-Pull
Contact Finish - Mating Gold
Contact Finish Thickness - Mating 30.0µin (0.76µm)
Current Rating 2.9A per Contact
Operating Temperature -55°C ~ 125°C
Material Flammability Rating UL94 V-0
Insulation Material Liquid Crystal Polymer (LCP)
Contact Material Beryllium Copper
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SFMC-125-02-S-D-P are determined by strict equivalence across the following critical parameters:

  • Connector type (Receptacle)
  • Contact type (Female Socket)
  • Number of positions (50)
  • Pitch specification (0.050" / 1.27mm mating pitch)
  • Row configuration (2 rows with 0.050" row spacing)
  • Mounting method (Surface Mount)
  • Termination type (Solder)
  • Fastening mechanism (Push-Pull)
  • Contact finish (Gold at 30.0µin thickness)
  • Current rating (2.9A per contact)
  • Operating temperature range (-55°C ~ 125°C)
  • Insulation material (Liquid Crystal Polymer)
  • Contact material (Beryllium Copper)
  • Compliance standards (UL94 V-0, ROHS3)

The SFMC-125-02-SM-D-K meets all these criteria and is classified as a direct substitute within the Tiger Eye™ SFMC series.

Parameter Comparison

Parameter SFMC-125-02-S-D-P SFMC-125-02-SM-D-K
Manufacturer Samtec Inc. Samtec Inc.
Series Tiger Eye™ SFMC Tiger Eye™ SFMC
Connector Type Receptacle Receptacle
Contact Type Female Socket Female Socket
Number of Positions 50 50
Pitch - Mating 0.050" (1.27mm) 0.050" (1.27mm)
Number of Rows 2 2
Row Spacing - Mating 0.050" (1.27mm) 0.050" (1.27mm)
Mounting Type Surface Mount Surface Mount
Termination Solder Solder
Fastening Type Push-Pull Push-Pull
Contact Finish - Mating Gold Gold
Contact Finish Thickness - Mating 30.0µin (0.76µm) 30.0µin (0.76µm)
Current Rating 2.9A per Contact 2.9A per Contact
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Material Flammability Rating UL94 V-0 UL94 V-0
Insulation Material Liquid Crystal Polymer (LCP) Liquid Crystal Polymer (LCP)
Contact Material Beryllium Copper Beryllium Copper
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

Both the SFMC-125-02-S-D-P and SFMC-125-02-SM-D-K maintain active product status within the Tiger Eye™ SFMC series. Both parts are ROHS3 compliant and carry UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications. The parts are electrically and mechanically interchangeable based on all provided specifications. Selection between these parts should be based on inventory availability and supply chain requirements, as both meet identical performance and compliance criteria.

Frequently Asked Questions (FAQ)

Q: Are SFMC-125-02-S-D-P and SFMC-125-02-SM-D-K electrically interchangeable?

A: Yes. Both connectors feature identical electrical specifications including 50-position configuration, 0.050" pitch, 2.9A per contact current rating, and gold-plated beryllium copper contacts. They are electrically interchangeable in applications requiring these specifications.

Q: What is the significance of the pitch specification in connector substitution?

A: Pitch (0.050" / 1.27mm) defines the center-to-center spacing between contacts. Connectors with different pitch values are not mechanically compatible. Both substitute parts maintain identical pitch specifications, ensuring mechanical compatibility with mating connectors.

Q: Do both parts support the same mounting method?

A: Yes. Both SFMC-125-02-S-D-P and SFMC-125-02-SM-D-K are surface mount receptacles with solder termination and push-pull fastening. They are compatible with identical PCB assembly processes.

Q: What does the row spacing parameter indicate?

A: Row spacing (0.050" / 1.27mm) specifies the distance between the two rows of contacts. Both parts maintain identical row spacing, ensuring compatibility with the same mating connector designs.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, carry UL94 V-0 flammability rating, and maintain MSL 1 (Unlimited) moisture sensitivity level. Compliance certifications are identical.

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