TFC-142-02-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC TFC-142-02-LM-D-A-K is an 84-position Tiger Eye cost-effective terminal strip with 0.050" (1.27 mm) pitch, dual-row surface-mount design with long machined contacts providing dependable mating performance in dense PCB interconnect assemblies.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 84
- Lifecycle
- ACTIVE
- Datasheet
- TFC-142-02-LM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-142-02-LM-D-A-K?
- 84-position dual-row layout at 0.050" (1.27 mm) pitch enables very high pin-count board interconnects in a compact footprint
- Tiger Eye machined contact design delivers reliable normal force and low contact resistance across 200+ mating cycles
- Long machined (LM) contacts offer deeper insertion depth for improved board-to-board alignment tolerance
- Gold-plated interface and cost-effective construction provide Samtec quality at reduced per-pin cost for volume production
What is TFC-142-02-LM-D-A-K used for?
The TFC-142-02-LM-D-A-K is designed for high-density mezzanine and daughter-card assemblies where 84 signal lines must be routed between stacked PCBs using a 1.27 mm pitch footprint. It is used in FPGA development platforms, multi-channel data acquisition boards, and server expansion modules demanding reliable contact integrity. The long machined contact variant provides extra mechanical stability during mating in vibration-sensitive industrial and telecom enclosures.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-142-02-LM-D-A-K datasheet?
TFC-142-02-LM-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-142-02-LM-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What differentiates the long machined (LM) contact option of TFC-142-02-LM-D-A-K from the standard contact variant?
The LM designation indicates long machined contacts that extend deeper into the mating connector by approximately 0.5 mm compared to standard contacts, improving board-to-board alignment and retention force. This additional depth reduces the risk of partial mating in vibration environments and is rated for 200+ mating cycles with 30 µin minimum gold plating on the mating area.
How many signals can the TFC-142-02-LM-D-A-K route and what board footprint does it occupy?
The TFC-142-02-LM-D-A-K provides 84 positions arranged in 2 rows of 42 contacts each, spaced at 0.050" (1.27 mm) pitch. The dual-row footprint spans approximately 53 mm in length and under 4 mm in width, allowing 84 signal or power lines in a footprint smaller than many 50-position single-row alternatives on standard PCB layouts.
For which high-density computing or instrumentation designs is the TFC-142-02-LM-D-A-K a suitable choice?
This 84-position, 1.27 mm pitch terminal strip is well suited to FPGA mezzanine cards conforming to VITA 57.1 FMC standards, multi-channel signal digitizers, industrial motion-control backplanes, and network switch line cards where routing more than 80 differential or single-ended signals between boards is required within a constrained board area of less than 60 mm.
Is the TFC-142-02-LM-D-A-K compatible with standard SMT reflow soldering processes?
Yes, the TFC-142-02-LM-D-A-K is designed for SMT mounting and is compatible with standard convection reflow soldering profiles up to 260°C peak temperature per IPC/JEDEC J-STD-020 guidelines. The housing material is rated to withstand solder reflow temperatures, and the gold-plated contacts maintain surface integrity after a single reflow pass for 84-pin coplanar solder joints.
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