TFC-139-02-F-D-A-K-TR SAMTEC Connector (Other) In Stock
TFC-139-02-F-D-A-K-TR is a 78-position dual-row Tiger Eye cost-effective terminal strip from SAMTEC operating on a fine 0.050 inch (1.27 mm) pitch for high-density board-to-board signal interconnects. It features SAMTEC's Tiger Eye contact system for reliable low-insertion-force mating and is supplied in tape-and-reel for automated SMD assembly. Available from global distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFC-139-02-F-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 78-position dual-row layout on ultra-fine 0.050 inch (1.27 mm) pitch enabling very high signal density in compact PCB interconnect zones
- SAMTEC Tiger Eye contact technology providing reliable low-insertion-force mating with consistent contact resistance across 78 positions
- Tape-and-reel (TR) packaging supporting automated SMD pick-and-place assembly for high-volume production efficiency
Applications
TFC-139-02-F-D-A-K-TR is suited for FPGA daughter card interfaces, high-density backplane mezzanine connections, and multi-channel signal routing in embedded computing and test equipment where 78 positions of 0.050 inch pitch connectivity minimize board footprint. Its Tiger Eye contact design provides reliable mating in environments subject to vibration and thermal cycling, making it applicable in military electronics, aerospace, and industrial embedded computing modules. The fine pitch and high position count reduce the number of separate connectors needed, simplifying PCB layout on constrained boards.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does TFC-139-02-F-D-A-K-TR provide for high-density signal interconnects?
TFC-139-02-F-D-A-K-TR provides 78 positions arranged in a dual-row configuration on a 0.050 inch (1.27 mm) pitch. This fine pitch enables routing of 78 individual signals in approximately half the board length that a standard 0.100 inch pitch connector of the same position count would require, making it ideal for FPGA expansion headers, SoM-to-carrier board connectors, and high-density mezzanine interfaces in space-constrained designs.
What is SAMTEC's Tiger Eye contact technology and how does it benefit repeated mating cycles in test equipment?
SAMTEC Tiger Eye contacts use a precision-formed tined beam design that provides consistent wiping action and low insertion force across all 78 positions during each mating cycle. In test and measurement equipment where daughter cards may be swapped dozens or hundreds of times during development and production testing, Tiger Eye contacts maintain contact resistance below a few milliohms over thousands of cycles, reducing intermittent connection failures that can corrupt test results.
How does 0.050 inch pitch of TFC-139-02-F-D-A-K-TR compare to 0.100 inch pitch connectors for FPGA board designs?
At 0.050 inch pitch, TFC-139-02-F-D-A-K-TR occupies roughly half the connector length of a 0.100 inch pitch alternative carrying the same 78 signals. For an FPGA expansion header routed to a daughter card, this pitch reduction saves approximately 40–50 mm of board edge length, freeing PCB real estate for decoupling capacitors, power regulation, and signal conditioning circuits that must be co-located with the FPGA I/O banks.
What production assembly advantages does the tape-and-reel packaging of TFC-139-02-F-D-A-K-TR offer versus tray-packed connectors?
Tape-and-reel (TR) packaging of TFC-139-02-F-D-A-K-TR allows the connector to be loaded into standard SMD feeder magazines for automated pick-and-place, eliminating manual handling of individual components from trays. This reduces placement cycle time per board, lowers defect rates from misorientation, and enables lights-out SMT production for high volumes of 1000 units or more per run, which is particularly valuable when each board carries multiple 78-position connectors requiring precise co-planarity.
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