TFC-137-02-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TFC-137-02-LM-D-A-K-TR is a 74-position Tiger Eye cost-effective dual-row terminal strip with 0.050" (1.27 mm) pitch in a tape-and-reel SMD format. It offers low-insertion-force contacts with gold-plated termination for reliable board-to-board interconnection. Compact footprint suits high-density PCB designs with worldwide distribution.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- TFC-137-02-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-137-02-LM-D-A-K-TR?
- 74 positions across a dual-row layout at 0.050 inch (1.27 mm) pitch, enabling high-density signal routing within a minimal PCB footprint
- Tiger Eye contact technology provides low-insertion-force mating with robust gold-plated terminations rated for reliable electrical performance over repeated mate-demate cycles
- Tape-and-reel (TR) packaging supports automated SMD pick-and-place assembly for high-volume production with consistent placement accuracy
- Cost-effective TFC series construction offers an economical alternative to premium board-to-board connectors without sacrificing 2 A per contact current rating
What is TFC-137-02-LM-D-A-K-TR used for?
The TFC-137-02-LM-D-A-K-TR is used on backplanes, daughter cards, and FPGA mezzanine boards where 74 signals must cross a board-to-board interface within a 1.27 mm pitch grid. Its low-profile strip format suits rack-mount networking equipment and test-and-measurement instruments that require dense multi-signal connections. The tape-and-reel format makes it equally suitable for high-volume consumer electronics assembly lines requiring automated placement.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-137-02-LM-D-A-K-TR datasheet?
TFC-137-02-LM-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-137-02-LM-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the TFC-137-02-LM-D-A-K-TR provide, and how does that translate to PCB footprint width?
The TFC-137-02-LM-D-A-K-TR has 74 positions arranged in a dual-row configuration at a 0.050 inch (1.27 mm) pitch. The dual-row layout places 37 contacts per row, resulting in a row-to-row spacing of approximately 1.27 mm and a total connector body length of about 47 mm, making it one of the most space-efficient 74-position SMD terminal strips available for high-density signal boards.
What current and voltage rating does each contact in the TFC-137-02-LM-D-A-K-TR support for signal and low-power supply lines?
Each contact in the SAMTEC TFC series is rated at up to 1 A continuous current per pin and 125 V AC/DC working voltage. For 74-position boards carrying mixed signal and power lines, this allows designers to allocate several adjacent pins as a 3 A to 5 A power rail by paralleling 3 to 5 contacts, while the remaining pins carry logic-level signals at 3.3 V or 5 V without additional derating.
When is the TFC-137-02-LM-D-A-K-TR a better choice than a standard 0.100 inch pitch header for a compact mezzanine card design?
A 0.100 inch (2.54 mm) pitch header with 74 positions would require roughly twice the board edge length compared with the 0.050 inch (1.27 mm) pitch TFC series. When PCB real estate is constrained to less than 50 mm along the connector axis, the TFC-137-02-LM-D-A-K-TR is the preferred choice because it fits the same 74-pin interface in approximately half the footprint, freeing space for additional components on the mezzanine.
Does the tape-and-reel packaging of the TFC-137-02-LM-D-A-K-TR support standard SMD feeder widths used on common pick-and-place machines?
Yes, the TR suffix indicates 24 mm or 32 mm carrier tape packaging compliant with EIA-481 standards, which is compatible with most standard SMD feeders on Yamaha, Fuji, and Juki pick-and-place platforms. Each reel typically contains 500 to 1000 pieces, allowing uninterrupted automated placement for production runs exceeding several hundred boards without manual reload.
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