TFC-145-02-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TFC-145-02-LM-D-A-K-TR is a 90-position Tiger Eye cost-effective terminal strip with 0.050" (1.27 mm) pitch in a dual-row configuration with keying and tape-and-reel packaging. Delivers 90 high-density contacts for fine-pitch mezzanine and daughter card interconnects. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 90
- Lifecycle
- ACTIVE
- Datasheet
- TFC-145-02-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-145-02-LM-D-A-K-TR?
- 90-position dual-row 0.050" (1.27 mm) pitch Tiger Eye terminal strip for ultra-high-density fine-pitch board interconnects
- Keyed (K) polarization feature prevents mis-mating among multiple fine-pitch connectors on shared PCB assemblies
- Tape-and-reel (TR) format supports automated SMT pick-and-place placement of the 90-contact strip in production volumes
What is TFC-145-02-LM-D-A-K-TR used for?
The TFC-145-02-LM-D-A-K-TR is designed for high-density daughter card, mezzanine board, and FPGA module interconnects requiring 90 signal or power contacts at a compact 0.050" pitch. Its Tiger Eye contact design provides reliable wiping action across mating surfaces, maintaining low contact resistance after repeated insertions in test fixture and prototype swap environments. The keyed dual-row layout prevents costly mis-mating in systems where multiple 90-pin connectors of identical pitch are mounted in close proximity.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-145-02-LM-D-A-K-TR datasheet?
TFC-145-02-LM-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-145-02-LM-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal lines can the TFC-145-02-LM-D-A-K-TR carry, and how does 0.050" pitch achieve that density in a compact PCB area?
The TFC-145-02-LM-D-A-K-TR provides 90 contacts in a dual-row arrangement at 0.050" (1.27 mm) pitch, enabling 90 independent signal or power lines in the footprint that a 45-position 0.100" pitch dual-row connector would occupy. This halved pitch reduces connector board length by approximately 50%, freeing significant PCB real estate in dense FPGA or processor module designs.
What is the Tiger Eye contact design and how does it maintain reliable contact resistance after repeated mating cycles?
Tiger Eye is SAMTEC's tuning-fork contact geometry where two resilient tines form a socket that grips the mating pin on both sides, providing dual-contact wiping action. This dual-wipe mechanism maintains low contact resistance—typically under 20 milliohms—after 50 or more insertion and extraction cycles, which is important in test fixture and daughter-card swap applications where connectors are mated and unmated frequently.
When should a design team choose the TFC-145-02-LM-D-A-K-TR over a lower pin-count connector at the same 0.050" pitch for an FPGA interface board?
Engineers select the 90-position TFC-145-02-LM-D-A-K-TR when an FPGA daughter card must export 80 or more I/O lines, power rails, and ground returns through a single connector site, because using two or three smaller fine-pitch connectors would require additional PCB routing complexity and increase the risk of ground bounce across separated connector pairs. A single 90-contact connector also simplifies mechanical alignment during board stacking compared to multi-connector assemblies.
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