TFC-137-02-LM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-137-02-LM-D-A is a 74-position dual-row Tiger Eye cost-effective terminal strip connector with 0.050" (1.27 mm) pitch. Designed for high-density board-to-board and mezzanine interconnects, it features gold-plated mating contacts for reliable, low-resistance signal connectivity.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- TFC-137-02-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-137-02-LM-D-A?
- 74-position dual-row layout at 0.050" (1.27 mm) pitch supporting very high signal density per connector
- Gold-plated mating contacts on phosphor bronze for low contact resistance and extended mating reliability
- Tiger Eye cost-effective design provides an economical solution for high-position-count 1.27 mm pitch interconnects
- Dual-row 74-pin configuration reduces connector count on densely populated backplane and mezzanine PCB designs
What is TFC-137-02-LM-D-A used for?
The TFC-137-02-LM-D-A is used in high-signal-count mezzanine board, backplane, and daughter-card interconnect applications such as FPGA development platforms, embedded server modules, and large-scale industrial control systems. Its 74-position dual-row layout at 0.050" pitch allows designers to consolidate many parallel data and control signals into a single compact connector. The Tiger Eye construction makes it a cost-competitive choice for volume production environments where large pin counts are required without the premium pricing of specialty connectors.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-137-02-LM-D-A datasheet?
TFC-137-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-137-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signals can the TFC-137-02-LM-D-A route, and what pitch does it use?
The TFC-137-02-LM-D-A routes 74 signals through a dual-row (2-row) arrangement at a 0.050" (1.27 mm) pitch. This high position count allows designers to consolidate large numbers of data, control, or power signals through a single compact connector, reducing the total number of connectors needed on backplane or mezzanine PCBs.
For an FPGA mezzanine module needing 74 parallel signals, how does TFC-137-02-LM-D-A compare to using multiple smaller connectors?
Replacing multiple smaller connectors with a single TFC-137-02-LM-D-A 74-position dual-row 1.27 mm pitch connector reduces board real estate, simplifies routing, and lowers assembly labor per signal. A single 74-pin connector also minimizes the risk of mismatched mating during board stacking, which is a common failure mode when multiple smaller connectors are used in parallel for FPGA daughter-card interfaces.
What contact finish does the TFC-137-02-LM-D-A use, and how does it perform in industrial environments?
The TFC-137-02-LM-D-A features gold-plated mating contacts on phosphor bronze material. Gold plating provides corrosion resistance and stable contact resistance typically below 20 milliohms across the rated mating cycles, ensuring reliable electrical performance in industrial environments with temperature cycling, humidity, or mild contamination exposure.
When is the Tiger Eye TFC-137-02-LM-D-A a better procurement choice than a standard SAMTEC terminal strip with the same 74-pin count?
The Tiger Eye variant (TFC-137-02-LM-D-A) is preferred when budget constraints require lower unit cost per connector while still achieving acceptable contact reliability for the expected mating cycle life and operating environment. For 74-pin dual-row 1.27 mm pitch applications in non-extreme environments where standard cycle counts (typically under a few hundred mates) are expected, the Tiger Eye series provides the best cost-per-pin ratio compared to premium SAMTEC alternatives.
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