TFM-120-32-SM-D-A Equivalent & Substitute Parts

Part Overview

The TFM-120-32-SM-D-A is a surface mount rectangular connector header from Samtec Inc.'s 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 status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement while accommodating specific board layout or stacking height requirements.

Substiute Parts

TFM-120-32-SM-D-A

Samtec Inc.In Stock: 941TFM-120-32-SM-D-A Datasheet

Current PartRFQ

TFM-120-12-S-D-A

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

MFR RecommendedRFQ

TFM-120-22-S-D-A

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

MFR RecommendedRFQ

TFM-120-32-S-D-A

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFM-120-32-SM-D-A is determined by the following invariant parameters that must remain constant across all substitute parts:

• 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
• Termination: Solder
• Fastening Type: Push-Pull
• Shrouding: Shrouded - 4 Wall
• Current Rating: 2.9A per Contact
• Voltage Rating: 275VAC
• Operating Temperature: -55°C ~ 125°C
• Contact Finish - Mating: Gold (30.0µin / 0.76µm)
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The primary variable parameter is Insulation Height, which differs among substitute parts. This variation accommodates different board stacking configurations while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts—TFM-120-12-S-D-A, TFM-120-22-S-D-A, and TFM-120-32-S-D-A—maintain Active product status and full ROHS3 compliance. Selection between these parts is determined solely by board stacking height requirements:

• TFM-120-12-S-D-A: 0.290" (7.37mm) insulation height for compact assemblies
• TFM-120-22-S-D-A: 0.360" (9.14mm) insulation height for intermediate stacking
• TFM-120-32-S-D-A: 0.435" (11.05mm) insulation height, electrically and mechanically identical to the main part TFM-120-32-SM-D-A

All parts share identical electrical ratings, contact materials, finishes, temperature ranges, and regulatory certifications. The choice between substitutes depends exclusively on available board clearance and mating connector height specifications.

Frequently Asked Questions (FAQ)

Q: Can TFM-120-12-S-D-A replace TFM-120-32-SM-D-A?

A: Yes, electrically and mechanically. The TFM-120-12-S-D-A has a lower insulation height (0.290" vs 0.435"), making it suitable for space-constrained applications. Verify that the reduced stacking height accommodates your mating connector and board layout.

Q: What is the difference between these substitute parts?

A: The only difference is insulation height. All three substitutes maintain identical connector type, contact configuration, pitch, current rating, voltage rating, operating temperature, and material specifications. The insulation height variation allows selection based on available vertical clearance in the assembly.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TFM-120-12-S-D-A, TFM-120-22-S-D-A, and TFM-120-32-S-D-A are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Can I use TFM-120-32-S-D-A as a direct replacement for TFM-120-32-SM-D-A?

A: Yes. Both parts have identical insulation height (0.435" / 11.05mm) and all electrical and mechanical parameters. They are functionally equivalent.

Q: What determines whether a part can substitute for the main part?

A: Substitution is valid when the connector type, contact type, position count, row configuration, pitch, row spacing, mounting type, termination, fastening type, shrouding, current rating, voltage rating, operating temperature, contact finish, contact material, insulation material, flammability rating, and compliance status remain unchanged. Insulation height variation is the only allowable parameter difference.

Q: Are there inventory considerations for these substitutes?

A: Inventory levels vary. TFM-120-12-S-D-A has 2000 pcs, TFM-120-22-S-D-A has 1119 pcs, and TFM-120-32-S-D-A has 1138 pcs available. Verify current stock status before design finalization.