SFMC-120-T2-S-D Equivalent & Substitute Parts

Part Overview

The SFMC-120-T2-S-D is a 40-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 and push-pull fastening. The part is currently active in production with 1000 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when specific design variations are required.

Substiute Parts

SFMC-120-T2-S-D

Samtec Inc.In Stock: 1110SFMC-120-T2-S-D Datasheet

Current PartRFQ

SFMC-120-02-S-D

Samtec Inc.In Stock: 1101SFMC-120-02-S-D Datasheet

SimilarRFQ

SFMC-120-L2-S-D

Samtec Inc.In Stock: 1144SFMC-120-L2-S-D Datasheet

SimilarRFQ

SFMC-120-L2-S-D-P

Samtec Inc.In Stock: 1095SFMC-120-L2-S-D-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFMC-120-T2-S-D are qualified based on the following critical parameters that must remain constant across all alternatives:

• Number of Positions: 40
• Pitch - Mating: 0.050" (1.27mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.050" (1.27mm)
• Connector Type: Receptacle
• Contact Type: Female Socket
• Mounting Type: Surface Mount
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Finish - Mating: Gold
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• Insulation Material: Liquid Crystal Polymer (LCP)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The three identified substitutes (SFMC-120-02-S-D, SFMC-120-L2-S-D, SFMC-120-L2-S-D-P) meet all these critical parameters. Variations in contact material (Beryllium Copper vs. Phosphor Bronze) and optional features (Pick and Place capability) do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

All four part numbers (SFMC-120-T2-S-D, SFMC-120-02-S-D, SFMC-120-L2-S-D, SFMC-120-L2-S-D-P) are active products from Samtec Inc. with identical electrical and mechanical specifications. All are ROHS3 compliant and carry UL94 V-0 flammability certification.

Selection between these parts should be based on:

1. Availability: All substitute parts maintain adequate inventory levels (1000–1088 units in stock).
2. Contact Material: The primary part uses Phosphor Bronze contacts, while substitutes use Beryllium Copper. Both materials meet the specified current rating and operating temperature range.
3. Assembly Requirements: SFMC-120-L2-S-D-P includes Pick and Place capability, which may be advantageous for automated assembly processes.
4. Compliance: All parts maintain identical RoHS and flammability certifications.

Frequently Asked Questions (FAQ)

Q: Can SFMC-120-02-S-D, SFMC-120-L2-S-D, or SFMC-120-L2-S-D-P be used as direct replacements for SFMC-120-T2-S-D?

A: Yes. All substitute parts share identical pitch (0.050"), position count (40), row configuration (2 rows), mounting type (surface mount), and termination method (solder). Electrical performance and thermal operating range are equivalent.

Q: What is the difference between Phosphor Bronze and Beryllium Copper contacts?

A: The primary part uses Phosphor Bronze contacts, while the three substitutes use Beryllium Copper. Both materials are rated for 2.9A per contact and operate across the -55°C to 125°C temperature range specified for this connector series.

Q: Does the Pick and Place feature on SFMC-120-L2-S-D-P affect electrical compatibility?

A: No. The Pick and Place feature is a manufacturing convenience option that does not alter electrical or mechanical compatibility. It is relevant only to assembly process selection.

Q: Are all parts RoHS3 compliant?

A: Yes. All four part numbers are ROHS3 compliant with UL94 V-0 flammability certification and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part should be selected if the primary part is unavailable?

A: Selection should prioritize availability and assembly requirements. SFMC-120-L2-S-D-P is recommended for automated assembly environments due to Pick and Place capability. SFMC-120-L2-S-D and SFMC-120-02-S-D are functionally equivalent alternatives with comparable inventory levels.