TFC-120-32-L-D Equivalent & Substitute Parts

Part Overview

The TFC-120-32-L-D is a Samtec Tiger Eye™ TFC series rectangular connector header designed for surface mount applications. This 40-position, 2-row board-to-board connector operates across -55°C to 125°C with a 0.050" (1.27mm) pitch and supports 3.1A per contact at 275VAC. The part is Active status and ROHS3 compliant with MSL 1 rating, making it suitable for industrial and commercial electronic assemblies requiring reliable push-pull mated connections.

Substitute parts are identified to address inventory availability, regional sourcing requirements, or design flexibility while maintaining electrical and mechanical compatibility within the Tiger Eye™ TFC series.

Substiute Parts

TFC-120-32-L-D

Samtec Inc.In Stock: 935TFC-120-32-L-D Datasheet

Current PartRFQ

TFC-120-32-L-D-A

Samtec Inc.In Stock: 1174TFC-120-32-L-D-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the TFC-120-32-L-D family is determined by strict equivalence across the following critical parameters:

• Pitch and row spacing (0.050" / 1.27mm)
• Position count and row configuration (40 positions, 2 rows)
• Contact type and material (Male Pin, Phosphor Bronze)
• Electrical ratings (3.1A per contact, 275VAC)
• Operating temperature range (-55°C ~ 125°C)
• Mounting method (Surface Mount, Solder termination)
• Shrouding configuration (Shrouded - 4 Wall)
• Fastening mechanism (Push-Pull)
• Compliance certifications (ROHS3, UL94 V-0, MSL 1)

The substitute part TFC-120-32-L-D-A maintains all critical electrical and mechanical parameters. The only documented difference is the addition of a Board Guide feature in the substitute variant, which does not affect electrical compatibility or mating interface dimensions.

Parameter Comparison

Engineering Selection Recommendations

Both TFC-120-32-L-D and TFC-120-32-L-D-A are Active status products from Samtec Inc. with identical electrical specifications, mechanical dimensions, and compliance certifications. Selection between these parts should be based on:

1. Inventory availability and lead time requirements
2. PCB design requirements for board guide alignment features
3. Regional sourcing and supply chain considerations
4. Design revision control and documentation requirements

The TFC-120-32-L-D-A includes a Board Guide feature that provides additional mechanical alignment during assembly. This feature does not alter the electrical mating interface, contact pitch, or electrical performance characteristics. Both parts are ROHS3 compliant, UL94 V-0 rated, and carry MSL 1 classification.

Frequently Asked Questions (FAQ)

Q: Are TFC-120-32-L-D and TFC-120-32-L-D-A electrically interchangeable?

A: Yes. Both parts maintain identical electrical ratings (3.1A per contact, 275VAC), contact materials (Phosphor Bronze with gold mating finish), and operating temperature ranges (-55°C ~ 125°C). The mating interface, pitch (0.050"), and row spacing are identical.

Q: What is the difference between these two part numbers?

A: The TFC-120-32-L-D-A includes a Board Guide feature for enhanced mechanical alignment during assembly. All other specifications, including electrical performance, mechanical dimensions, and compliance ratings, are identical.

Q: Can I use TFC-120-32-L-D-A as a direct replacement for TFC-120-32-L-D in existing designs?

A: Yes, provided your PCB layout accommodates the Board Guide feature. The mating interface and electrical characteristics are fully compatible. Verify PCB footprint clearances if the Board Guide adds mechanical constraints to your assembly.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is valid when the following parameters match: pitch (0.050"), row spacing (0.050"), position count (40), row configuration (2), contact type (Male Pin), mounting method (Surface Mount), shrouding (Shrouded - 4 Wall), fastening type (Push-Pull), current rating (3.1A per contact), voltage rating (275VAC), and operating temperature range (-55°C ~ 125°C).

Q: Are both parts RoHS compliant?

A: Yes. Both TFC-120-32-L-D and TFC-120-32-L-D-A are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.

Q: What is the packaging format for these connectors?

A: Both parts are supplied in Tube packaging format.