TFM-146-05-S-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-146-05-S-D-LC is a high-reliability Tiger Eye dual-row terminal strip with 0.050" (1.27 mm) pitch, 46-position single-row (92 total contacts) in a surface-mount LC package for high-density PCB interconnect. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 92
- Lifecycle
- ACTIVE
- Datasheet
- TFM-146-05-S-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-146-05-S-D-LC?
- Tiger Eye high-reliability contact system with gold-plated finish for stable low-resistance connections across thousands of mating cycles
- 46-position dual-row layout (92 total contacts) at 0.050" (1.27 mm) pitch, enabling very high signal density in a compact SMT footprint
- Surface-mount LC package supports automated reflow assembly at peak temperatures up to 260°C without through-hole processing
What is TFM-146-05-S-D-LC used for?
The TFM-146-05-S-D-LC is ideal for high-channel-count board-to-board and mezzanine interconnect in telecommunications line cards, FPGA prototyping platforms, and data center switching equipment where 92 contacts must be accommodated at 1.27 mm pitch. Its Tiger Eye contact system ensures signal integrity across high-speed differential pairs and dense mixed-signal buses in applications subject to repeated mating and vibration. Defense electronics and network equipment manufacturers also use this connector series for plug-in module interfaces requiring long-life, reliable electrical performance over the product lifetime.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-146-05-S-D-LC datasheet?
TFM-146-05-S-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-146-05-S-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the TFM-146-05-S-D-LC provide, and what pitch are they on?
The TFM-146-05-S-D-LC is a 46-position dual-row connector at 0.050" (1.27 mm) pitch, providing 92 total contacts in a single SMT component. This high contact count at 1.27 mm pitch gives approximately 4 times the density of a 2.54 mm pitch equivalent, making it suitable for FPGA I/O banks, high-speed SerDes interfaces, and mixed-signal busses requiring more than 80 connections in a compact footprint.
In a telecom line card design, how does the TFM-146-05-S-D-LC handle repeated hot-swap or field replacement cycles?
The Tiger Eye contact geometry used in the TFM-146-05-S-D-LC is specifically engineered for high-cycle mating durability, with gold-plated contacts rated for thousands of insertions while maintaining contact resistance below 20 milliohms. For telecom line cards subject to quarterly maintenance cycles over 10-year service lives, this equates to more than 40 mating cycles with consistent electrical performance, far exceeding the 25-cycle rating of standard tin-plated connectors in similar pitch classes.
What is the advantage of the LC (surface-mount) package on TFM-146-05-S-D-LC over a through-hole version for PCB manufacturing?
The LC surface-mount package eliminates the need to drill 92 through-holes in the PCB, saving approximately 10 to 15 seconds of drill time per board and reducing raw board cost by avoiding the additional copper plating required for through-hole barrels. In automated SMT lines processing thousands of boards per shift, this translates to meaningful throughput gains and allows both sides of the PCB to be populated in a single reflow pass without wave soldering the connector separately.
Which SAMTEC mating receptacle families are compatible with TFM-146-05-S-D-LC for board-to-board stacking?
The TFM-146-05-S-D-LC mates with SAMTEC Tiger Eye receptacle strips in the SFML or SFM series at 0.050" (1.27 mm) pitch in matching 46-position dual-row configurations. Stack heights between mated boards are typically available in increments from 4 mm to 20 mm depending on the receptacle selected, providing design flexibility for enclosures ranging from ultra-compact 5 mm board-to-board stacks in portable instruments to 15 mm stacks in chassis-mounted compute modules.
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