TFM-138-22-SM-D-A-P-TR SAMTEC Connector (Other) In Stock
The TFM-138-22-SM-D-A-P-TR is a SAMTEC Tiger Eye high-reliability dual-row terminal strip with 0.050-inch (1.27 mm) pitch and 76 total pins. It supports surface mount assembly with superior contact reliability for high-density PCB interconnects. Available in tape-and-reel format with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- TFM-138-22-SM-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-SM-D-A-P-TR?
- 0.050 inch (1.27 mm) ultra-fine pitch dual-row design delivering 76 pins in a compact SMT footprint
- High-reliability Tiger Eye contact geometry maintaining consistent low-resistance connections under mechanical stress and vibration
- Surface mount (SM) termination style enabling fully automated reflow soldering without through-hole drilling
- Tape-and-reel (TR) packaging compatible with high-speed automated pick-and-place assembly for volume production
What is TFM-138-22-SM-D-A-P-TR used for?
The TFM-138-22-SM-D-A-P-TR is used in demanding high-density board-to-board and board-to-module interconnect applications in aerospace, defense, and industrial computing systems. Its 76-pin dual-row layout at 0.050 inch pitch allows engineers to route a large number of signals through a minimal PCB area. The surface mount design simplifies assembly and is well-suited for rugged environments where connector reliability under vibration and thermal cycling is essential.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-138-22-SM-D-A-P-TR datasheet?
TFM-138-22-SM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-138-22-SM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many pins does the TFM-138-22-SM-D-A-P-TR have, and what is its pin arrangement?
The TFM-138-22-SM-D-A-P-TR has 76 total pins arranged in 2 rows of 38 contacts, with a 0.050 inch (1.27 mm) pitch between adjacent pins. This dual-row configuration allows high-density signal routing in compact PCB layouts, making it suitable for mezzanine card and backplane connector applications in embedded and industrial systems.
What makes the Tiger Eye contact design in TFM-138-22-SM-D-A-P-TR suitable for high-reliability applications?
The Tiger Eye contact geometry provides a redundant wiping action that displaces surface oxides and contaminants, ensuring consistent electrical contact resistance below 20 milliohms even after repeated mating cycles. This makes the TFM-138-22-SM-D-A-P-TR particularly reliable in defense, aerospace, and industrial environments subject to vibration and thermal cycling from -55°C to +125°C.
Can the TFM-138-22-SM-D-A-P-TR be assembled using standard SMT reflow soldering processes?
Yes, the TFM-138-22-SM-D-A-P-TR features surface mount (SM) termination and is supplied in tape-and-reel format, making it fully compatible with automated SMT pick-and-place and reflow soldering at standard lead-free reflow temperatures of 260°C peak. This eliminates the need for manual through-hole insertion and wave soldering, reducing assembly cost and improving throughput.
When would a designer choose the TFM-138-22-SM-D-A-P-TR over a connector with a larger 0.100 inch pitch?
A designer would choose the TFM-138-22-SM-D-A-P-TR when the PCB layout requires routing 76 signals through a footprint that is approximately half the size of a 0.100 inch pitch equivalent, because the 0.050 inch pitch halves the connector length. This is critical in space-constrained applications such as small form factor computing modules, high-density backplanes, and portable industrial instruments where every square millimeter of board area matters.
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