TFM-143-03-LM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-143-03-LM-D-LC is a high-reliability Tiger Eye terminal strip connector with 0.050 inch (1.27 mm) pitch, dual-row, 43-position surface-mount design offering low-profile mounting and latching cover. Features gold-plated contacts for superior electrical reliability. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- TFM-143-03-LM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-143-03-LM-D-LC?
- 0.050 inch (1.27 mm) fine-pitch dual-row layout with 86 total contacts in minimal PCB footprint
- Tiger Eye contact geometry delivering exceptional retention force and low contact resistance below 20 milliohms
- Low-profile SMT mounting with optional latching cover (LC) for added connector security in demanding environments
What is TFM-143-03-LM-D-LC used for?
The TFM-143-03-LM-D-LC is designed for dense board-to-board signal routing in high-channel-count data acquisition systems, FPGA daughter cards, and compact industrial controllers where 86 contacts must be placed in minimal space. Its low-profile surface-mount footprint and latching cover make it particularly suitable for applications subject to mechanical shock or vibration, such as avionics test equipment and ruggedized embedded platforms.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-143-03-LM-D-LC datasheet?
TFM-143-03-LM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-143-03-LM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the TFM-143-03-LM-D-LC provide, and what pitch does it use?
The TFM-143-03-LM-D-LC is a 43-position dual-row connector providing 86 total contacts arranged at a 0.050 inch (1.27 mm) pitch. This fine pitch allows high pin density on compact PCBs, making it practical to route 86 independent signals through a board edge area of approximately 55 mm in length.
What does the LC suffix designate on the TFM-143-03-LM-D-LC, and why is it preferred in rugged environments?
The LC suffix stands for latching cover, an integrated mechanical retention feature that secures the mated pair against accidental disconnection. In environments subject to vibration or repeated handling, the latching cover maintains contact force and keeps resistance below 20 milliohms per pin, which is critical for signal integrity in industrial controls, avionics test fixtures, and portable instruments.
Can the TFM-143-03-LM-D-LC handle mixed signal and power lines on the same connector?
Yes, the TFM series supports mixed use across its 86 pins. Individual pins are rated for approximately 1 ampere per contact at up to 125°C operating temperature, allowing designers to assign dedicated power rails alongside multiple data lines. This is common in FPGA mezzanine boards where several 3.3 V or 1.8 V rails share the 0.050 inch pitch connector with high-speed differential pairs.
Where can engineers source the TFM-143-03-LM-D-LC and what quantities are typically available?
The TFM-143-03-LM-D-LC is available through SAMTEC's authorized distribution network, including major electronics distributors. It is typically stocked in quantities from 1 to 1000 pieces, and SAMTEC offers same-day or next-day shipping for standard items. For volume orders above 500 pieces, negotiated pricing is available with lead times generally under 4 weeks.
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About SAMTEC
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