SFMC-105-02-L-D-P Equivalent & Substitute Parts

Part Overview

The SFMC-105-02-L-D-P is a 10-position receptacle connector manufactured by Samtec Inc. from the Tiger Eye™ SFMC series. This surface mount board-to-board connector features 0.050" (1.27mm) pitch mating with gold-plated contacts and is designed for applications requiring reliable interconnection in compact form factors. The part maintains Active product status with 1015 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on equivalent electrical and mechanical specifications.

Substiute Parts

SFMC-105-02-L-D-P

Samtec Inc.In Stock: 1068SFMC-105-02-L-D-P Datasheet

Current PartRFQ

LPPB052NFSS-RC

Sullins Connector SolutionsIn Stock: 9425LPPB052NFSS-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFMC-105-02-L-D-P is determined by the following critical parameters that must align across parts:

• Connector Position Count: 10 positions (fixed requirement)
• Mating Pitch: 0.050" (1.27mm) (fixed requirement)
• Row Configuration: 2 rows at 0.050" (1.27mm) spacing (fixed requirement)
• Mounting Technology: Surface Mount (fixed requirement)
• Contact Finish: Gold plating on mating surface (fixed requirement)
• Insulation Material: Liquid Crystal Polymer (LCP) (fixed requirement)
• Compliance Standards: UL94 V-0 flammability rating and ROHS3 compliance (fixed requirement)

The LPPB052NFSS-RC from Sullins Connector Solutions satisfies all critical substitution parameters. Both parts share identical position count, pitch, row spacing, surface mount configuration, gold contact finish, LCP insulation, and equivalent compliance certifications. Differences in operating temperature range, current rating, and contact material do not preclude substitution when application requirements fall within the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SFMC-105-02-L-D-P and LPPB052NFSS-RC maintain Active product status with current manufacturing availability. Both parts carry ROHS3 compliance and UL94 V-0 flammability certification, meeting equivalent regulatory requirements for industrial and commercial applications.

Selection between these parts depends on application-specific current requirements. The SFMC-105-02-L-D-P supports 2.9A per contact and operates across -55°C to 125°C. The LPPB052NFSS-RC supports 1A per contact with operating range of -40°C to 125°C. Applications requiring currents exceeding 1A per contact or operating below -40°C must use the SFMC-105-02-L-D-P. Applications within 1A per contact and -40°C to 125°C temperature range are compatible with either part.

Both parts feature identical mating pitch, row configuration, surface mount technology, and gold contact finish on LCP insulation. Physical dimensions are equivalent (insulation height difference of 0.02mm is negligible for board-level integration). Both employ push-pull fastening and solder termination.

Frequently Asked Questions (FAQ)

Q: Can LPPB052NFSS-RC directly replace SFMC-105-02-L-D-P in existing designs?

A: Direct replacement is possible only when application current requirements do not exceed 1A per contact and operating temperature remains within -40°C to 125°C. The identical 0.050" pitch, 2-row configuration, surface mount footprint, and gold contact finish ensure mechanical and electrical compatibility within these constraints. PCB layout and mating connector compatibility must be verified independently.

Q: What is the significance of the connector type difference (Receptacle vs. Header)?

A: The SFMC-105-02-L-D-P is a receptacle (female socket), while the LPPB052NFSS-RC is a header with top or bottom entry capability. Both are designed for board-to-board interconnection. The mating interface and contact geometry remain compatible due to standardized 0.050" pitch specifications. System-level design must confirm that the mating connector type (plug or receptacle) is appropriate for the substitute part's header configuration.

Q: Are there temperature-related limitations for the LPPB052NFSS-RC?

A: The LPPB052NFSS-RC operates from -40°C to 125°C, which is 15°C higher on the lower end compared to the SFMC-105-02-L-D-P (-55°C to 125°C). Applications requiring operation below -40°C must use the SFMC-105-02-L-D-P. Both parts maintain equivalent performance within the overlapping -40°C to 125°C range.

Q: How do the contact materials differ, and does this affect substitution?

A: The SFMC-105-02-L-D-P uses beryllium copper contacts, while the LPPB052NFSS-RC uses phosphor bronze. Both materials are standard for connector applications and provide equivalent electrical conductivity and durability. The gold plating on mating surfaces ensures consistent contact resistance regardless of base material. Contact material selection does not preclude substitution when other electrical and mechanical parameters align.

Q: What is the impact of current rating differences?

A: The SFMC-105-02-L-D-P is rated for 2.9A per contact, while the LPPB052NFSS-RC is rated for 1A per contact. Applications requiring current transmission exceeding 1A per contact must use the SFMC-105-02-L-D-P. For applications operating at or below 1A per contact, both parts are electrically equivalent. Current requirements must be calculated based on actual circuit design to determine substitution feasibility.

Q: Are both parts equally available for procurement?

A: The SFMC-105-02-L-D-P has 1015 units in current inventory, while the LPPB052NFSS-RC has 9345 units in current inventory. Both parts maintain Active product status. Inventory levels may fluctuate; current availability should be confirmed at time of procurement.

Q: Do both parts meet the same compliance standards?

A: Both parts are ROHS3 compliant, carry UL94 V-0 flammability rating, and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. Both have Moisture Sensitivity Level 1 (Unlimited). Compliance requirements are equivalent for regulatory purposes.