TFM-125-01-SM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-125-01-SM-D-A-P-TR is a high-reliability Tiger Eye dual-row SMT terminal strip at 0.050" (1.27 mm) pitch with 50 total positions, above-board (A) polarized (P) configuration, and tape-and-reel packaging. The solderable SMT contacts support automated reflow assembly for dense mezzanine interconnects. From $4.80, available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFM-125-01-SM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-125-01-SM-D-A-P-TR?
- 50-position dual-row SMT terminal strip at 0.050" (1.27 mm) pitch supporting high-density mezzanine board-to-board interconnects
- Tiger Eye multi-finger contacts maintain stable contact resistance below 20 milliohms across 500+ insertion cycles
- Tape-and-reel (TR) packaging enables direct automated pick-and-place loading on high-volume SMT production lines
What is TFM-125-01-SM-D-A-P-TR used for?
The TFM-125-01-SM-D-A-P-TR is engineered for high-density mezzanine and daughter-card interconnects in military, avionics, and high-reliability industrial electronics requiring 50 signal lines at 1.27 mm pitch. The above-board (A) configuration provides the vertical clearance needed for components mounted between the base and mezzanine boards, while the polarized (P) housing eliminates mis-mating in safety-critical assemblies. Tape-and-reel packaging streamlines high-volume automated SMT manufacturing.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-125-01-SM-D-A-P-TR datasheet?
TFM-125-01-SM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-125-01-SM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the above-board (A) option on TFM-125-01-SM-D-A-P-TR mean for board-to-board stack height?
The above-board option positions the 50-position dual-row terminal strip contacts so they extend above the PCB surface, increasing the total mezzanine stack height by approximately 1 mm to 3 mm compared to a flush-mount configuration. This additional clearance at 0.050" (1.27 mm) pitch allows passives or decoupling capacitors to be placed on the base board surface beneath the mezzanine layer without mechanical interference, a common requirement in compact embedded computing and avionics module designs.
For a high-cycle military connector application, why is Tiger Eye contact technology specified over a standard single-beam design?
Tiger Eye contacts use a multi-beam wiping action that distributes the normal contact force across multiple fingers, maintaining reliable electrical engagement below 20 milliohms contact resistance across more than 500 mating cycles. Standard single-beam contacts degrade more rapidly under repeated insertion in military field-replaceable units and test sockets, where the TFM-125-01-SM-D-A-P-TR's 50-position Tiger Eye contacts must retain performance through environmental stress including -55°C to 125°C temperature cycling per MIL-STD-810.
How does the polarized (P) housing on the TFM-125-01-SM-D-A-P-TR prevent mis-mating in a 50-pin mezzanine assembly?
The polarized housing incorporates a mechanical key feature that physically blocks the mating 50-position connector from engaging in any incorrect orientation, preventing reversed insertion that could apply 3.3 V or 5 V supply rails to logic signal pins on the mezzanine board. This polarization is mandatory in avionics line-replaceable units and military computing modules where a single mis-mated 50-pin connection could damage ASICs or FPGAs worth hundreds of dollars in production assemblies.
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