TFM-123-04-S-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-123-04-S-D-LC is a high-reliability Tiger Eye terminal strip with 0.050 inch pitch featuring 46 contacts in a dual-row vertical SMT configuration with leave-clearance (LC) design. This compact connector delivers precise board-to-board signal routing with robust Tiger Eye contacts in space-constrained electronics. Available from authorized global distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- TFM-123-04-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-123-04-S-D-LC?
- 46-position dual-row Tiger Eye terminal strip at 0.050 inch (1.27 mm) pitch with vertical SMT mounting and leave-clearance (LC) body for solder inspection access
- High-reliability Tiger Eye dual-beam contact system ensures low contact resistance and consistent signal integrity over extended mating cycles
- Compact 1.27 mm pitch dual-row footprint reduces PCB area by up to 50 percent compared to 2.54 mm pitch connectors with equivalent contact count
What is TFM-123-04-S-D-LC used for?
The TFM-123-04-S-D-LC is used in FPGA mezzanine card interconnects, embedded signal processing boards, and high-density digital communication modules where 46-contact SMT connectors at 1.27 mm pitch are required. Its leave-clearance body design facilitates post-reflow solder joint inspection, making it well-suited for high-reliability industrial, defense, and telecommunications assemblies with strict quality verification requirements. The connector also serves compact data acquisition systems and portable instrumentation requiring reliable board-to-board signal connections in minimal footprint.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-123-04-S-D-LC datasheet?
TFM-123-04-S-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-123-04-S-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the LC designator mean in TFM-123-04-S-D-LC and how does it affect PCB assembly?
LC stands for leave clearance, meaning the connector body is elevated slightly above the PCB surface to allow visual and automated optical inspection of solder joints beneath the connector after reflow. For the 46-contact dual-row, 0.050 inch pitch footprint, this clearance gap typically measures around 0.5 mm, facilitating IPC-class solder quality verification without desoldering the part.
How many contacts does the TFM-123-04-S-D-LC provide and how are they configured?
The TFM-123-04-S-D-LC provides 46 total contacts in a dual-row layout with 23 contacts per row at 0.050 inch (1.27 mm) pitch. This high-density SMT configuration supports 46 independent signal lines in a compact footprint, suitable for FPGA mezzanine cards, signal routing boards, and high-speed digital backplane applications.
For which board-to-board applications does TFM-123-04-S-D-LC outperform a standard 2.54 mm pitch connector?
The TFM-123-04-S-D-LC outperforms 2.54 mm pitch connectors in size-constrained designs where 46 contacts must fit within a reduced PCB area, delivering approximately 50 percent footprint reduction at 1.27 mm pitch. It is preferred in compact embedded computing, portable medical devices, and miniature sensor interfaces where board space is at a premium and high-reliability Tiger Eye contacts are required.
Can TFM-123-04-S-D-LC be sourced in large volumes and what lead times should buyers expect?
The TFM-123-04-S-D-LC is available through SAMTEC authorized distributors globally, with standard stock quantities supporting production orders of hundreds to thousands of units at 0.050 inch pitch, 46-contact configuration. Lead times vary by distributor and order volume, typically ranging from same-day shipment for stocked quantities to 8 to 12 weeks for high-volume custom orders, making early procurement planning advisable for production ramp-up.
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