TFM-143-05-H-D-LC SAMTEC Connector (Other) In Stock
Samtec TFM-143-05-H-D-LC is a Tiger Eye dual-row terminal strip with 0.050" (1.27 mm) pitch, 43-position high-profile surface-mount configuration and lead-compatible contact finish. Provides 86 total contacts for high-density board interconnects in high-reliability programs. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- TFM-143-05-H-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-143-05-H-D-LC?
- Dual-row 43-position high-profile (H) surface-mount terminal strip at 0.050" (1.27 mm) pitch delivers 86 total contacts for FPGA breakouts and dense signal buses
- Lead-compatible (LC) contact finish supports both tin-lead and lead-free soldering, making the part eligible for military, aerospace, and high-reliability exemption programs
- Tiger Eye contact geometry produces a self-wiping mating interface that maintains contact resistance below 20 mΩ across hundreds of mate-unmate cycles
What is TFM-143-05-H-D-LC used for?
The TFM-143-05-H-D-LC is designed for high-density board-to-board or board-to-module interconnects in military avionics, radar systems, and space-qualified electronics where both lead-compatible processing and high contact count at 1.27 mm pitch are required. The 86-contact layout accommodates wide parallel data buses, multiple differential pairs, and mixed power-and-signal routing on a single connector. The high-profile (H) body height provides additional clearance for PCB traces and components routed beneath the connector mating zone.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-143-05-H-D-LC datasheet?
TFM-143-05-H-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-143-05-H-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the TFM-143-05-H-D-LC provide and how does that support wide parallel bus designs?
The TFM-143-05-H-D-LC provides 86 total contacts — 43 positions across 2 rows at 0.050" (1.27 mm) pitch. This high contact count can simultaneously carry a 64-bit data bus with additional address, control, and power supply pins, making it suitable for FPGA daughter-card interfaces, processor module breakouts, and high-speed data acquisition boards.
What does the H (high-profile) designation on the TFM-143-05-H-D-LC mean for PCB layout clearance?
The H suffix indicates an elevated connector body height compared to standard and low-profile TFM variants. The additional height — typically several millimeters above the PCB surface — provides routing clearance for PCB traces and components placed under the mated connector stack, which is valuable when routing 86 signals beneath a 1.27 mm pitch dual-row strip in a dense layout.
Why is the LC (lead-compatible) contact finish critical for aerospace or military procurement of the TFM-143-05-H-D-LC?
Military and aerospace programs operating under exemptions such as MIL-PRF-31032 or ESA ECSS standards require tin-lead solder to avoid tin whisker nucleation, which can cause short circuits in high-voltage or space environments. The LC finish on the TFM-143-05-H-D-LC allows processing with 63/37 SnPb solder paste at reflow temperatures around 183 °C without voiding reliability qualification test results.
When is the TFM-143-05-H-D-LC more suitable than a lower-position-count connector like the TFM-107 series for a system design?
A designer should choose the TFM-143-05-H-D-LC over the 14-contact TFM-107 when the interface requires more than approximately 60 signals and consolidating them into a single 86-pin, 1.27 mm pitch connector is preferred over using multiple smaller connectors. Fewer connectors reduce PCB footprint overhead, simplify cable management, and lower the risk of incomplete mating that grows with each additional connector in a system.
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