TFM-143-04-F-D-LC SAMTEC Connector (Other) In Stock
The SAMTEC TFM-143-04-F-D-LC is a high-reliability Tiger Eye terminal strip with 0.050" (1.27 mm) pitch featuring a dual-row, female contact, low-profile configuration with board-lock retention. Supporting 86 positions in a compact SMT footprint, it delivers consistent mating performance for demanding board-to-board applications. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- TFM-143-04-F-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-143-04-F-D-LC?
- Tiger Eye female contacts on 0.050" (1.27 mm) pitch deliver dual-beam wiping action for low, stable contact resistance across hundreds of mating cycles
- Low-profile (LC) board-lock design mechanically secures the connector to the PCB, resisting pullout forces encountered during repeated mating in 86-position high-density layouts
- Dual-row configuration offers approximately 4× pin density compared to 0.100" pitch alternatives, maximizing signal count within a constrained PCB footprint
What is TFM-143-04-F-D-LC used for?
The TFM-143-04-F-D-LC is engineered for high-density mezzanine and board-to-board interconnections in FPGA carrier cards, communications line cards, and compact embedded computing modules. The low-profile board-lock variant adds mechanical robustness for applications subject to vibration or frequent mating, such as test sockets and modular instrument backplanes. With 86 positions on a 0.050" pitch, it efficiently routes high-speed parallel buses and differential pairs in space-constrained PCB designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-143-04-F-D-LC datasheet?
TFM-143-04-F-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-143-04-F-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the board-lock (LC) feature on TFM-143-04-F-D-LC improve mechanical reliability compared to standard surface-mount connectors?
The board-lock posts press into PCB holes and provide a mechanical anchor independent of the solder joints, substantially increasing resistance to pull-out and shear forces on the 86-position, 0.050" pitch connector. This is particularly valuable in field-serviceable equipment where the connector may be mated and unmated many times, and in vibration-prone environments such as industrial machinery or aerospace test racks operating across -55°C to +125°C.
For a high-speed FPGA mezzanine design, how many differential pairs can TFM-143-04-F-D-LC support?
With 86 positions arranged in 2 rows on 0.050" (1.27 mm) pitch, the TFM-143-04-F-D-LC can accommodate up to 43 differential pairs if all contacts are used for differential signaling, or a mix of up to 32 differential pairs plus power and ground contacts in a typical FPGA mezzanine board configuration targeting multi-gigabit serial lanes.
When should a designer choose TFM-143-04-F-D-LC over a 0.100" pitch alternative for a backplane design?
A designer should select the TFM-143-04-F-D-LC when board area is constrained and signal count exceeds what a 0.100" pitch connector can fit within the allowed connector zone. At 0.050" pitch, the TFM-143-04-F-D-LC provides roughly 4 times the pin density, enabling 86 connections in approximately the same PCB length that a 0.100" dual-row connector would use for only 22 positions, making it ideal for compact, high-channel-count instrumentation.
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About SAMTEC
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