TFC-123-02-LM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-123-02-LM-D-A is a 46-position, 0.050" pitch Tiger Eye dual-row cost-effective terminal strip designed for high-density board-to-board and cable-to-board signal connections. Features a low-profile SMT footprint with latch mount option. From $3.50 in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- TFC-123-02-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 46-position dual-row layout on 0.050" (1.27 mm) pitch delivers ultra-high signal density in roughly half the board footprint of standard 0.100" connectors
- Tiger Eye contact technology provides positive engagement and low contact resistance across 46 positions, ensuring reliable signal integrity at high mating cycle counts
- Cost-effective design combines the performance of premium fine-pitch connectors with an economical price point suited for high-volume production runs
Applications
The TFC-123-02-LM-D-A is optimized for high-density signal routing between PCBs and ribbon cable assemblies in compact embedded systems, communications equipment, and portable instrumentation where 46 signals must pass through a minimal footprint. Its 0.050" pitch allows designers to achieve the same signal count as a standard 0.100" connector in approximately half the board area, enabling more compact form factors. Tiger Eye contacts make this terminal strip well-suited for backplane interconnects and daughter-card interfaces in industrial computing and test equipment requiring repeated mating cycles.
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
How does the 0.050" pitch of the TFC-123-02-LM-D-A reduce PCB area compared to standard 0.100" connectors for 46-position interfaces?
At 0.050" (1.27 mm) pitch, the 46-position TFC-123-02-LM-D-A occupies approximately half the board length of an equivalent 0.100" pitch connector. A 46-position dual-row 0.100" strip would span about 1.15 inches, whereas the TFC-123-02-LM-D-A covers roughly 0.575 inches, freeing over 14 mm of PCB length in compact embedded modules and handheld instruments.
What does the Tiger Eye contact technology in the TFC-123-02-LM-D-A offer over standard bifurcated contact designs?
Tiger Eye contacts in the TFC-123-02-LM-D-A use a symmetrical wiping action that maintains consistent contact force across all 46 positions, reducing contact resistance to under 20 milliohms per pin. This design tolerates slight pin misalignment better than bifurcated contacts, which is critical in fine-pitch 0.050" connectors where positional tolerances are tighter and mating misalignment is more likely.
For a high-density 46-channel signal acquisition board, how many mating cycles can the TFC-123-02-LM-D-A reliably sustain?
SAMTEC TFC series connectors with Tiger Eye contacts are rated for a minimum of 30 mating cycles under standard test conditions. For lab instruments and test fixtures that require frequent board swaps—where 46-channel interfaces may be mated and unmated up to 5 times per day—this rating supports approximately 6 days of continuous use before reaching the specification limit, making the TFC series more suitable for semi-permanent than daily-disconnect applications.
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