Samtec TFM-125-22-L-D Equivalent & Substitute Parts

Part Overview

The Samtec TFM-125-22-L-D is a surface mount rectangular connector header from the Tiger Eye™ TFM series, designed for board-to-board or cable applications. This 50-position connector operates across industrial temperature ranges and maintains active product status with full RoHS3 compliance. Substitute parts within this series are identified based on matching core electrical and mechanical parameters while accommodating variations in insulation height and optional features such as board guides or pick-and-place compatibility.

Substiute Parts

TFM-125-22-L-D

Samtec Inc.In Stock: 1071TFM-125-22-L-D Datasheet

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TFM-125-12-L-D

Samtec Inc.In Stock: 1017TFM-125-12-L-D Datasheet

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TFM-125-22-L-D-A

Samtec Inc.In Stock: 1259TFM-125-22-L-D-A Datasheet

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TFM-125-32-L-D-A

Samtec Inc.In Stock: 1179TFM-125-32-L-D-A Datasheet

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TFM-125-32-L-D-A-K

Samtec Inc.In Stock: 717TFM-125-32-L-D-A-K Datasheet

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TFM-125-32-L-D-P

Samtec Inc.In Stock: 869TFM-125-32-L-D-P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TFM-125-22-L-D are qualified based on the following core parameters that must remain constant across all alternatives:

Fixed Parameters (Must Match):

• Manufacturer: Samtec Inc.
• Series: Tiger Eye™ TFM
• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 50
• Number of Rows: 2
• Pitch - Mating: 0.050" (1.27mm)
• Row Spacing - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Termination: Solder
• Contact Finish - Mating: Gold
• Contact Material: Phosphor Bronze
• Insulation Material: Liquid Crystal Polymer (LCP)
• Operating Temperature: -55°C ~ 125°C
• Current Rating: 2.9A per Contact
• Voltage Rating: 275VAC
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

• Insulation Height: 0.290" (7.37mm) to 0.435" (11.05mm)
• Features: Optional Board Guide and/or Pick and Place compatibility

All substitute parts maintain identical electrical performance and thermal specifications while offering flexibility in mechanical form factor and assembly features.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full ROHS3 compliance, ensuring long-term availability and regulatory alignment. Selection among alternatives depends on mechanical clearance requirements and assembly process capabilities:

TFM-125-12-L-D provides the lowest profile option at 0.290" insulation height, suitable for space-constrained applications where vertical clearance is limited.

TFM-125-22-L-D-A matches the original part's insulation height of 0.360" while adding board guide features for improved mechanical stability during mating operations.

TFM-125-32-L-D-A, TFM-125-32-L-D-A-K, and TFM-125-32-L-D-P offer increased insulation height of 0.435" for applications requiring additional standoff distance. The "-A-K" variant includes both board guide and pick-and-place features for automated assembly environments, while the "-P" variant provides pick-and-place compatibility without board guides.

Frequently Asked Questions (FAQ)

Q: Can I substitute TFM-125-12-L-D for TFM-125-22-L-D in my design?

A: Yes, provided your PCB layout accommodates the reduced insulation height of 0.290" versus 0.360". All electrical parameters, contact ratings, and thermal specifications remain identical. Verify clearance between the connector body and adjacent components.

Q: What is the difference between TFM-125-22-L-D and TFM-125-22-L-D-A?

A: The "-A" suffix indicates the addition of board guide features. Both parts share identical insulation height (0.360"), electrical ratings, and contact configuration. Board guides provide mechanical alignment assistance during connector mating but do not affect electrical performance.

Q: Are the higher-profile variants (0.435" insulation height) electrically equivalent?

A: Yes. TFM-125-32-L-D-A, TFM-125-32-L-D-A-K, and TFM-125-32-L-D-P maintain all electrical specifications, current ratings, and voltage ratings of the original part. The increased insulation height accommodates specific mechanical or assembly requirements without altering circuit performance.

Q: Which variant should I select for automated pick-and-place assembly?

A: TFM-125-32-L-D-A-K includes both board guide and pick-and-place features optimized for automated assembly processes. TFM-125-32-L-D-P provides pick-and-place compatibility without board guides if your assembly equipment does not require guide features.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring regulatory alignment and moisture handling consistency across the entire product family.

Q: What is the impact of insulation height variation on circuit design?

A: Insulation height affects only the vertical clearance between the PCB surface and the connector body. Electrical performance, impedance, and signal integrity remain unchanged. Select based on available PCB clearance and mechanical constraints in your application.