Samtec TFM-120-32-L-D-A Equivalent & Substitute Parts

Part Overview

The Samtec TFM-120-32-L-D-A is a surface mount rectangular connector header from the Tiger Eye™ TFM series. This shrouded 4-wall header features 40 positions arranged in 2 rows with 0.050" (1.27mm) pitch, designed for board-to-board or cable applications. The connector is Active status and widely stocked (1036 pcs available), making it suitable for production environments. Alternative models within the same series provide equivalent electrical and mechanical performance with variations in insulation height, enabling selection based on specific PCB layout requirements.

Substiute Parts

TFM-120-32-L-D-A

Samtec Inc.In Stock: 1108TFM-120-32-L-D-A Datasheet

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TFM-120-12-L-D-A

Samtec Inc.In Stock: 1190TFM-120-12-L-D-A Datasheet

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TFM-120-22-L-D-A

Samtec Inc.In Stock: 1060TFM-120-22-L-D-A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TFM-120-32-L-D-A are selected from the same Samtec Tiger Eye™ TFM series based on strict electrical and mechanical compatibility criteria. All substitute parts maintain identical specifications for:

• Pitch (0.050" / 1.27mm)
• Number of positions (40)
• Number of rows (2)
• Contact type (Male Pin)
• Mounting type (Surface Mount)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Current rating (2.9A per Contact)
• Voltage rating (275VAC)
• Operating temperature range (-55°C ~ 125°C)
• Contact material (Phosphor Bronze)
• Insulation material (Liquid Crystal Polymer - LCP)
• Compliance certifications (ROHS3, UL94 V-0)

The primary differentiator among substitute parts is insulation height, which affects PCB stackup and board-level clearance. This parameter is non-electrical and does not impact signal integrity or current-carrying capacity.

Parameter Comparison

Engineering Selection Recommendations

All three parts—TFM-120-32-L-D-A, TFM-120-12-L-D-A, and TFM-120-22-L-D-A—are Active status products from Samtec Inc. with identical electrical ratings, compliance certifications (ROHS3, UL94 V-0), and environmental specifications. Selection between these parts is determined solely by PCB stackup requirements and available vertical clearance.

The TFM-120-32-L-D-A features the highest insulation height at 0.435" (11.05mm), suitable for applications requiring maximum component clearance above the PCB. The TFM-120-22-L-D-A provides a mid-range profile at 0.360" (9.14mm). The TFM-120-12-L-D-A offers the lowest profile at 0.290" (7.37mm) for space-constrained designs.

All parts maintain identical electrical performance, current capacity, voltage ratings, and temperature operating ranges. Substitution is mechanically feasible when PCB layout accommodates the respective insulation heights. All parts are REACH Unaffected and carry MSL 1 (Unlimited) moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can TFM-120-12-L-D-A replace TFM-120-32-L-D-A in an existing design?

A: Substitution is possible if the PCB layout provides sufficient clearance for the lower insulation height of 0.290" (7.37mm) versus the original 0.435" (11.05mm). Electrical performance is identical. Verify mating connector compatibility and board-level component spacing before implementation.

Q: What is the primary difference between these three connector models?

A: The insulation height is the only mechanical difference. TFM-120-32-L-D-A: 0.435" (11.05mm), TFM-120-22-L-D-A: 0.360" (9.14mm), TFM-120-12-L-D-A: 0.290" (7.37mm). All other electrical, thermal, and compliance specifications are identical.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental regulations for electronic components.

Q: What is the current rating per contact for these connectors?

A: All three parts are rated for 2.9A per contact at 275VAC, with an operating temperature range of -55°C to 125°C.

Q: Do these connectors require special handling or storage?

A: All three parts carry MSL 1 (Unlimited) moisture sensitivity classification, indicating no special moisture control measures are required during storage or handling.

Q: Can these connectors be used interchangeably in high-frequency applications?

A: Electrical specifications are identical across all three parts. Interchangeability depends on PCB layout constraints related to insulation height and mating connector availability. Consult application-specific signal integrity requirements.