TFM-120-12-L-D-LC Equivalent & Substitute Parts

Part Overview

The TFM-120-12-L-D-LC 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 or cable applications with push-pull fastening. The part is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement in the same application context.

Substiute Parts

TFM-120-12-L-D-LC

Samtec Inc.In Stock: 1212TFM-120-12-L-D-LC Datasheet

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TFM-120-32-L-D-LC

Samtec Inc.In Stock: 881TFM-120-32-L-D-LC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The TFM-120-32-L-D-LC qualifies as a substitute based on the following matching parameters:

• Manufacturer: Samtec Inc. (same manufacturer)
• Series: Tiger Eye™ TFM (same series)
• Connector Type: Header (same type)
• Contact Type: Male Pin (same contact type)
• Number of Positions: 40 (same position count)
• Number of Rows: 2 (same row configuration)
• Pitch - Mating: 0.050" (1.27mm) (identical pitch)
• Row Spacing - Mating: 0.050" (1.27mm) (identical spacing)
• Mounting Type: Surface Mount (same mounting)
• Shrouding: Shrouded - 4 Wall (same shrouding)
• Termination: Solder (same termination method)
• Fastening Type: Push-Pull (same fastening)
• Contact Shape: Square (same contact geometry)
• Contact Finish - Mating: Gold (same finish)
• Contact Material: Phosphor Bronze (same material)
• Insulation Material: Liquid Crystal Polymer (LCP) (same material)
• Current Rating: 2.9A per Contact (same current capacity)
• Voltage Rating: 275VAC (same voltage rating)
• Operating Temperature: -55°C ~ 125°C (same temperature range)
• Material Flammability Rating: UL94 V-0 (same rating)
• RoHS Status: ROHS3 Compliant (same compliance)
• Moisture Sensitivity Level: 1 (Unlimited) (same MSL)

The primary difference is the Insulation Height: TFM-120-12-L-D-LC has 0.290" (7.37mm) while TFM-120-32-L-D-LC has 0.435" (11.05mm). This dimensional variation does not affect electrical performance but impacts physical board layout and mating clearance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both TFM-120-12-L-D-LC and TFM-120-32-L-D-LC are active production parts with full ROHS3 compliance and identical electrical specifications. Selection between these parts depends on physical board layout constraints. The TFM-120-12-L-D-LC features a lower insulation height of 0.290" (7.37mm), suitable for applications with limited vertical clearance. The TFM-120-32-L-D-LC provides an increased insulation height of 0.435" (11.05mm), accommodating designs requiring greater mating clearance or component spacing. Both parts maintain identical current capacity (2.9A per contact), voltage rating (275VAC), and operating temperature range (-55°C ~ 125°C). Inventory availability is confirmed for both variants, with the TFM-120-12-L-D-LC currently stocked at higher quantities.

Frequently Asked Questions (FAQ)

Q: Can TFM-120-32-L-D-LC directly replace TFM-120-12-L-D-LC in my application?

A: Direct replacement is possible if your PCB layout accommodates the increased insulation height of 0.435" (11.05mm) versus 0.290" (7.37mm). All electrical parameters, contact ratings, and operating specifications are identical. Verify that the mating connector clearance and board-level component spacing support the taller profile.

Q: Are there electrical performance differences between these two parts?

A: No. Both parts share identical electrical specifications: 2.9A per contact current rating, 275VAC voltage rating, phosphor bronze contacts with gold mating finish, and -55°C ~ 125°C operating temperature range.

Q: What determines substitutability for Tiger Eye™ TFM series connectors?

A: Substitutability is determined by matching pitch (0.050" / 1.27mm), position count (40), row configuration (2 rows), mounting type (surface mount), shrouding style (4-wall), contact type (male pin), and electrical ratings. Physical dimensions such as insulation height may vary without affecting electrical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both TFM-120-12-L-D-LC and TFM-120-32-L-D-LC are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which part should I select if board space is constrained?

A: The TFM-120-12-L-D-LC with 0.290" (7.37mm) insulation height is suitable for space-constrained applications. Confirm that the mating connector and adjacent components provide adequate clearance at this reduced height.