TFM-128-01-STL-D-A-P-TR SAMTEC Connector (Other) In Stock
The TFM-128-01-STL-D-A-P-TR is a 56-position, dual-row Tiger Eye high-reliability terminal strip from SAMTEC with 0.050" (1.27 mm) pitch, supplied in tape-and-reel format with polarization pegs for automated SMT production.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-128-01-STL-D-A-P-TR?
- 56-position dual-row configuration at 0.050" (1.27 mm) pitch provides high-density SMT interconnects in a footprint under 37 mm
- Polarization peg (P) prevents incorrect board-to-board mating orientation, protecting all 56 signal lines from connection errors
- Tape-and-reel (TR) packaging enables high-speed automated pick-and-place at rates compatible with standard SMT assembly equipment
- Tiger Eye contacts deliver contact resistance below 20 mΩ and retain reliable performance from -55°C to +125°C across all 56 positions
What is TFM-128-01-STL-D-A-P-TR used for?
The TFM-128-01-STL-D-A-P-TR is used in high-volume server blade assemblies, industrial computing modules, and FPGA expansion cards requiring a reliable 56-pin dual-row 0.050" pitch terminal strip with polarization and tape-and-reel delivery for automated production. Its anti-vibration pegs and polarization keys make it well suited for board-to-board interconnects in equipment subject to mechanical shock and thermal cycling. Telecom infrastructure equipment and scientific instrumentation also specify this part for multi-channel analog and digital bus routing where consistent contact integrity across 56 positions is required over extended service lifetimes.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-128-01-STL-D-A-P-TR datasheet?
TFM-128-01-STL-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-128-01-STL-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What advantage does the polarization peg (P) in TFM-128-01-STL-D-A-P-TR provide in multi-connector PCB assemblies?
The polarization peg creates a unique mechanical key that prevents the mating connector from being inserted in the wrong orientation, ensuring all 56 signal contacts align correctly. This eliminates reverse-connection faults on buses carrying 3.3 V or 5 V logic signals during both initial board bring-up and field maintenance operations.
How does tape-and-reel packaging for TFM-128-01-STL-D-A-P-TR benefit high-volume SMT production lines?
Tape-and-reel packaging allows the TFM-128-01-STL-D-A-P-TR to be fed directly into automated pick-and-place machines at placement rates of hundreds of components per hour, eliminating manual tray loading steps, reducing misplacement errors on fine-pitch 1.27 mm footprints, and lowering per-unit assembly cost for production volumes exceeding 10,000 boards.
For a 56-channel FPGA daughter card, what PCB footprint area does TFM-128-01-STL-D-A-P-TR require?
With 56 positions at 1.27 mm pitch in a dual-row arrangement, the TFM-128-01-STL-D-A-P-TR occupies approximately 36 mm of connector length and 2.54 mm of row spacing, fitting a rectangular footprint of about 36 mm by 5 mm. This is roughly 60% smaller than an equivalent 56-pin connector at 2.54 mm pitch.
When is TFM-128-01-STL-D-A-P-TR a suitable drop-in upgrade from a non-polarized 0.050" terminal strip?
Upgrading to TFM-128-01-STL-D-A-P-TR is recommended when field assembly or repeated maintenance creates risk of connector misorientation across 56 pins at 1.27 mm pitch, or when vibration environments exceeding 5 g require the added mechanical support of anti-vibration pegs to prevent connector shift and intermittent contact faults during operation.
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