TFM-120-12-SM-D-A Equivalent & Substitute Parts

Part Overview

The TFM-120-12-SM-D-A is a surface mount rectangular connector header manufactured by Samtec Inc. as part of the Tiger Eye™ TFM series. This 40-position, dual-row connector operates at 0.050" (1.27mm) pitch and is designed for board-to-board applications with push-pull fastening. The part is active in production with 1060 units currently in stock. Substitute parts are identified to address inventory availability, lead time requirements, or specific mechanical height specifications for different PCB stack-up configurations.

Substiute Parts

TFM-120-12-SM-D-A

Samtec Inc.In Stock: 1071TFM-120-12-SM-D-A Datasheet

Current PartRFQ

TFM-120-12-S-D-A

Samtec Inc.In Stock: 2037TFM-120-12-S-D-A Datasheet

SimilarRFQ

TFM-120-22-S-D-A

Samtec Inc.In Stock: 1151TFM-120-22-S-D-A Datasheet

SimilarRFQ

TFM-120-32-S-D-A

Samtec Inc.In Stock: 1213TFM-120-32-S-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFM-120-12-SM-D-A is determined by the following invariant parameters across all qualified alternatives:

• Manufacturer: Samtec Inc.
• Series: Tiger Eye™ TFM
• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 40
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Shrouding: Shrouded - 4 Wall
• Fastening Type: Push-Pull
• Contact Length - Mating: 0.139" (4.63mm)
• Contact Shape: Square
• Contact Finish - Mating: Gold (30.0µin / 0.76µm)
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Current Rating: 2.9A per Contact
• Voltage Rating: 275VAC
• Operating Temperature: -55°C ~ 125°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Product Status: Active

The primary variable parameter is insulation height, which accommodates different PCB stack-up requirements while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain identical electrical performance and mechanical compatibility with the TFM-120-12-SM-D-A. Selection between TFM-120-12-SM-D-A, TFM-120-12-S-D-A, TFM-120-22-S-D-A, and TFM-120-32-S-D-A is determined solely by insulation height requirements for specific PCB stack-up configurations:

• TFM-120-12-SM-D-A and TFM-120-12-S-D-A: 0.290" (7.37mm) insulation height for standard stack-up applications
• TFM-120-22-S-D-A: 0.360" (9.14mm) insulation height for intermediate stack-up clearance
• TFM-120-32-S-D-A: 0.435" (11.05mm) insulation height for extended stack-up applications

All parts are active products with ROHS3 compliance, UL94 V-0 flammability rating, and unlimited moisture sensitivity level (MSL 1). Inventory availability ranges from 1060 to 2000 units across all variants.

Frequently Asked Questions (FAQ)

Q: Can TFM-120-12-S-D-A replace TFM-120-12-SM-D-A?

A: Yes. Both parts share identical electrical specifications, mechanical dimensions except for insulation height, and are functionally interchangeable when the 0.290" (7.37mm) insulation height is compatible with the PCB stack-up design.

Q: What is the primary difference between these substitute parts?

A: Insulation height is the only variable parameter. TFM-120-12-SM-D-A and TFM-120-12-S-D-A both measure 0.290" (7.37mm), while TFM-120-22-S-D-A measures 0.360" (9.14mm) and TFM-120-32-S-D-A measures 0.435" (11.05mm). Selection depends on available clearance in the PCB assembly.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four parts are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.

Q: What is the current and voltage rating for these connectors?

A: All parts are rated for 2.9A per contact and 275VAC maximum voltage.

Q: Do these connectors operate across the same temperature range?

A: Yes. All parts operate from -55°C to 125°C.

Q: Which part should I select if I need maximum clearance?

A: TFM-120-32-S-D-A provides the maximum insulation height of 0.435" (11.05mm) for applications requiring extended stack-up clearance.