TFC-137-02-L-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC TFC-137-02-L-D-A-K is a 74-position Tiger Eye cost-effective terminal strip with 0.050" pitch and dual-row through-hole low-profile design. It delivers high-density signal interconnect for backplane and mezzanine board applications. Globally available through authorized SAMTEC distribution channels.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- TFC-137-02-L-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 74-position dual-row configuration at 0.050" (1.27 mm) pitch for maximum signal density in compact PCB designs
- Tiger Eye contact technology ensuring high normal force and reliable electrical contact resistance below 20 milliohms across mating cycles
- Low-profile through-hole mounting option suitable for applications requiring mechanical robustness and vibration resistance
- Gold-plated contacts providing corrosion resistance and stable low-resistance connections in demanding industrial environments
Applications
The TFC-137-02-L-D-A-K is well-suited for high-density backplane assemblies, mezzanine card interfaces, and multi-board embedded computing systems where 74 signals must be routed reliably within a 1.27 mm pitch footprint. It is commonly used in telecommunications infrastructure, industrial automation controllers, and defense electronics that require consistent connector performance under vibration and temperature variation. Data acquisition systems and test instrumentation platforms also leverage this connector for its high position count and compact layout.
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
What is the position count and pitch of the TFC-137-02-L-D-A-K terminal strip?
The TFC-137-02-L-D-A-K provides 74 positions in a dual-row arrangement with a 0.050" (1.27 mm) pitch. This combination delivers one of the highest signal densities available in the Tiger Eye terminal strip family, allowing designers to route 74 independent signals through a single compact connector footprint on space-constrained PCBs in industrial and telecom applications.
How does the low-profile mounting of TFC-137-02-L-D-A-K benefit board stack height?
The low-profile (L suffix) through-hole mounting design minimizes the connector height above the PCB surface, which is critical in multi-board assemblies with tight vertical clearances. Reducing connector height by even 1 mm to 2 mm can allow an additional PCB layer in the stack, enabling denser system packaging in 1U rack equipment or compact embedded modules where overall system height is a strict constraint.
When should engineers choose the 74-position TFC-137-02-L-D-A-K over a lower position-count Tiger Eye variant?
Engineers should select the 74-position TFC-137-02-L-D-A-K when their design requires routing 60 or more signals through a single connector to reduce board space, compared to using two 42-position connectors. Consolidating into one 74-position unit reduces BOM line items and can lower assembly cost by cutting placements from 2 down to 1 per board, saving time in high-volume PCB production.
What contact plating and normal force characteristics does TFC-137-02-L-D-A-K offer for reliable signal integrity?
The TFC-137-02-L-D-A-K uses gold-plated Tiger Eye contacts engineered to exert higher normal force than conventional stamped contacts. This keeps contact resistance consistently below 20 milliohms across thousands of mating cycles and prevents intermittent opens caused by vibration or thermal cycling, making this connector suitable for reliable 74-channel signal transmission over the product lifetime in industrial and defense environments.
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