TFM-139-22-LM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-139-22-LM-D-A-P-TR is a 78-position dual-row Tiger Eye terminal strip at 0.050 inch pitch with low-profile SMT tails and tape-and-reel packaging, engineered for high-density mezzanine and board-to-board signal interconnects. Available worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFM-139-22-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-139-22-LM-D-A-P-TR?
- 78-position dual-row array at 0.050 inch (1.27 mm) pitch delivers high contact density for FPGA and processor module mezzanine interconnects
- Low-profile SMT tail (LM) reduces installed connector height for tight board-to-board stacking clearances
- Tiger Eye contact wiping action maintains low contact resistance below a few milliohms across 500+ mating cycles
- Tape-and-reel (TR) packaging enables automated SMD pick-and-place assembly at high production volumes
What is TFM-139-22-LM-D-A-P-TR used for?
The TFM-139-22-LM-D-A-P-TR is designed for high-density mezzanine module interconnects in FPGA development boards, network processing cards, and embedded SBC expansion connectors where 78 signals must pass through a compact 0.050 inch pitch SMT footprint. Its low-profile tail style minimizes the board-to-board spacing required in slim chassis designs. Tape-and-reel delivery integrates seamlessly into automated SMT assembly lines for high-volume electronics manufacturing.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-139-22-LM-D-A-P-TR datasheet?
TFM-139-22-LM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-139-22-LM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the total contact count and row arrangement of the TFM-139-22-LM-D-A-P-TR?
The TFM-139-22-LM-D-A-P-TR provides 78 positions arranged in a dual-row layout at 0.050 inch (1.27 mm) pitch, with 39 contacts per row, supporting high-density FPGA I/O expansion, memory bus routing, and general-purpose digital signal distribution across mezzanine board interfaces.
How does the low-profile (LM) tail style affect board-to-board stacking height compared to standard tail connectors?
The LM low-profile tail extends only a short distance below the PCB surface, reducing the total installed height of the connector stack by several millimeters compared to standard-length tails. This enables board-to-board separation distances as tight as a few millimeters in slim embedded computing and network switching modules.
For what production volumes is the tape-and-reel (TR) packaging of the TFM-139-22-LM-D-A-P-TR most cost-effective?
The TFM-139-22-LM-D-A-P-TR in tape-and-reel format is most cost-effective for production runs exceeding 500 units, where automated SMT pick-and-place machines place components at rates above 1000 per hour, significantly reducing per-unit assembly labor cost versus manual tube-fed or tray-packaged alternatives.
What contact performance guarantee does the Tiger Eye technology provide for the TFM-139-22-LM-D-A-P-TR over its service life?
SAMTEC Tiger Eye contacts deliver a wiping engagement stroke that mechanically removes surface oxide on every mating cycle, maintaining contact resistance below a few milliohms for a minimum of 500 insertion and withdrawal cycles. This reliability level supports field-replaceable mezzanine modules in industrial control systems and defense electronics that require consistent signal integrity over years of operation.
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