TFC-139-02-LM-D-A SAMTEC Connector (Other) In Stock
The SAMTEC TFC-139-02-LM-D-A is a 78-position dual-row Tiger Eye cost-effective terminal strip with 0.050" (1.27mm) pitch and right-angle surface-mount termination. It supports high-density signal routing with reliable Tiger Eye contacts suited for FFC and ribbon cable interfaces in space-constrained PCB designs. Available in stock with worldwide shipping for prototype and volume production orders.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFC-139-02-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-139-02-LM-D-A?
- 78-position dual-row layout at 0.050" (1.27mm) pitch for very high signal density
- Right-angle surface-mount termination for horizontal PCB edge cable routing
- Tiger Eye contact technology enabling low insertion force and reliable electrical connections
- Cost-effective terminal strip design ideal for volume production applications
What is TFC-139-02-LM-D-A used for?
The TFC-139-02-LM-D-A is designed for high-density right-angle board edge interfaces in computing modules, test and measurement equipment, and industrial control systems. Its 78-position dual-row 1.27mm pitch layout accommodates wide parallel buses and multi-channel interfaces where cable connections exit horizontally from the PCB. The Tiger Eye contact design ensures robust and repeatable connectivity across many mating cycles in demanding field environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-139-02-LM-D-A datasheet?
TFC-139-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-139-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the total pin count and row configuration of the SAMTEC TFC-139-02-LM-D-A?
The TFC-139-02-LM-D-A has 78 positions arranged in 2 rows at 0.050" (1.27mm) pitch, with 39 contacts per row. This dual-row layout enables very high signal density for wide parallel data buses, multi-channel sensor arrays, or combined signal-and-power connections in a compact right-angle surface-mount package.
How does right-angle mounting in the TFC-139-02-LM-D-A benefit chassis and panel designs?
Right-angle termination allows cables connected to the TFC-139-02-LM-D-A to exit parallel to the PCB surface rather than vertically, reducing the overall height of the assembly inside an enclosure. This is particularly advantageous in rack-mount or slim panel computers where vertical clearance above the PCB is limited to a few millimeters and 78 signals must route horizontally to a chassis panel or adjacent board.
Which high-channel-count applications specifically suit the 78-position TFC-139-02-LM-D-A?
Applications requiring 64-bit or 72-bit parallel buses with additional ground or power lines, such as FPGA I/O expansion boards, high-resolution ADC front ends with 78 or more channels, and multi-axis motor control interfaces, are well suited to the 78-position TFC-139-02-LM-D-A at 1.27mm pitch. Its pin count matches common 78-conductor flat cable widths available from multiple ribbon cable suppliers.
Is the TFC-139-02-LM-D-A compatible with flat flexible cable assemblies?
Yes, the TFC-139-02-LM-D-A mates with 1.27mm pitch flat flexible cables (FFC) and flat printed cables (FPC) in 78-conductor configurations. These cable assemblies are available as standard off-the-shelf items from major cable manufacturers, simplifying sourcing and enabling rapid prototyping for designs using this connector as a board edge interface.
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