TFM-138-22-LM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-138-22-LM-D-A-P-TR is a high-reliability Tiger Eye dual-row terminal strip with 76 pins at .050" (1.27 mm) pitch, featuring long-tail SMT termination, alignment post, and polarization for automated PCB assembly. Supplied in tape-and-reel from authorized global distributors.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- TFM-138-22-LM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-138-22-LM-D-A-P-TR?
- 76-position dual-row .050" (1.27 mm) pitch Tiger Eye terminal strip with long-tail (LM) SMT termination for improved solder joint robustness
- Long-tail SMT solder tails extend solder fillet height, increasing joint shear strength for applications with thermal cycling from -55°C to +125°C
- Alignment post (A) and polarization (P) prevent mismatement of 76 signal pins and support repeatable automated pick-and-place assembly
What is TFM-138-22-LM-D-A-P-TR used for?
The TFM-138-22-LM-D-A-P-TR is designed for high-reliability board-to-board interconnect in military avionics, space electronics, and rugged industrial computing where 76 pins at .050" pitch maximize signal density per unit PCB area. The long-tail SMT termination improves solder joint fatigue resistance under thermal cycling and mechanical stress, making it well-suited for ruggedized embedded controllers and airborne processing modules. Tape-and-reel packaging supports high-volume automated SMT assembly on defense and telecom production lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-138-22-LM-D-A-P-TR datasheet?
TFM-138-22-LM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-138-22-LM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pin count and pitch of the TFM-138-22-LM-D-A-P-TR, and how does it compare to the 84-pin TFM-142 variant?
The TFM-138-22-LM-D-A-P-TR provides 76 positions in a dual-row layout at .050" (1.27 mm) pitch, making it 8 pins shorter than the TFM-142 variant and approximately 5 mm shorter in connector body length, offering designers a mid-range pin-count option for board-to-board interconnect where full 84-pin density is not required.
Why does the LM long-tail SMT termination on the TFM-138-22-LM-D-A-P-TR improve solder joint reliability in ruggedized applications?
The LM long-tail design extends the SMT solder tail length, increasing solder fillet height by approximately 0.3 mm to 0.5 mm compared to standard tails, which improves resistance to shear forces during thermal cycling between -55°C and +125°C and reduces solder joint cracking risk in avionics and defense modules subject to vibration above 10g.
Which markets typically procure the TFM-138-22-LM-D-A-P-TR in tape-and-reel format, and what quantities per reel are expected?
Aerospace, defense, and high-reliability industrial manufacturers source the TFM-138-22-LM-D-A-P-TR in tape-and-reel format with typical reel quantities of 500 to 1,000 parts per reel, enabling continuous feed into automated SMT pick-and-place machines and reducing setup changeover time on production lines assembling hundreds of boards per shift.
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