TFM-138-12-STL-D-A-P-TR SAMTEC Connector (Other) In Stock
The SAMTEC TFM-138-12-STL-D-A-P-TR is a high-reliability Tiger Eye dual-row terminal strip with 0.050 inch (1.27 mm) pitch and 76 pins across 38 positions per row. The surface-mount through-lead (STL) termination style suits wave-solder and reflow processes requiring extra mechanical retention. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-138-12-STL-D-A-P-TR?
- 0.050 inch (1.27 mm) pitch dual-row layout delivering 76 contacts in a compact SMT footprint for dense signal bus connections
- STL (surface-mount through-lead) termination providing superior mechanical retention compared to standard SMT pads, resisting connector pull-off under mating forces
- Tiger Eye contact system maintaining reliable low-resistance connections across extended mating cycles in high-vibration and thermal-cycling environments
What is TFM-138-12-STL-D-A-P-TR used for?
The TFM-138-12-STL-D-A-P-TR is used in industrial control systems, defense hardware, and telecom equipment requiring 76 signal contacts at 1.27 mm pitch with added mechanical strength from through-lead SMT anchoring. The STL termination style is favored in applications where repeated mating and unmating could stress standard surface-mount pads, such as test fixture interfaces and field-replaceable module connectors. Tape-and-reel packaging streamlines automated SMT assembly at volume.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-138-12-STL-D-A-P-TR datasheet?
TFM-138-12-STL-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-138-12-STL-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the STL suffix mean on the TFM-138-12-STL-D-A-P-TR, and how does it improve mechanical performance?
STL stands for surface-mount through-lead, meaning the connector leads pass through small PCB holes in addition to being soldered to surface pads, providing significantly higher pull-off and lateral retention force than standard SMT alone, which is important for this 76-pin connector in applications subject to mechanical shock or frequent mating cycles.
What are the pin count and contact pitch of the TFM-138-12-STL-D-A-P-TR?
The TFM-138-12-STL-D-A-P-TR features 76 total contacts arranged in 2 rows of 38 positions at a 0.050 inch (1.27 mm) pitch, providing high-density signal routing capability for parallel buses, memory interfaces, and FPGA I/O connections in compact board designs.
In which harsh-environment applications is the TFM-138-12-STL-D-A-P-TR commonly used?
This connector is deployed in defense avionics, industrial robotics, and railway control electronics where Tiger Eye contacts maintain stable contact resistance across thousands of mating cycles and where operating temperatures may range from -55°C to +125°C with exposure to shock and vibration per MIL-spec requirements.
How does the TFM-138-12-STL-D-A-P-TR compare to TFM series variants without STL termination for wave-solder processes?
The STL termination enables the TFM-138-12-STL-D-A-P-TR to be processed through wave solder or selective soldering in addition to reflow, with the through-lead anchors providing a solderable via path that increases solder joint area and mechanical strength compared to surface-pad-only variants of the same 76-pin 1.27 mm pitch housing.
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About SAMTEC
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