TFM-146-04-S-D-LC SAMTEC Connector (Other) In Stock
The SAMTEC TFM-146-04-S-D-LC is a 92-position dual-row high-reliability Tiger Eye terminal strip with 0.050" (1.27 mm) pitch in a short, low-clearance surface-mount configuration. Purpose-built for dense signal routing and high-cycle board-to-board interconnects in space-constrained electronic systems. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 92
- Lifecycle
- ACTIVE
- Datasheet
- TFM-146-04-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-146-04-S-D-LC?
- 92-position dual-row layout on 0.050" (1.27 mm) pitch provides maximum signal density for complex FPGA and ASIC board interconnect designs
- Tiger Eye contact system delivers superior wiping action and contact retention force, ensuring long-term reliability in multi-cycle mating applications
- Short low-clearance (S-LC) profile reduces above-board height for ultra-slim board-to-board stacking configurations in demanding enclosures
What is TFM-146-04-S-D-LC used for?
The TFM-146-04-S-D-LC is designed for demanding high pin-count board-to-board applications including FPGA mezzanine cards, network switch line cards, and high-performance computing daughter boards that require 92 signal connections within a compact 0.050" pitch footprint. Its short low-clearance SMT profile makes it an excellent choice for military electronics, aerospace avionics, and industrial automation modules where board stack height is tightly constrained. The proven Tiger Eye contact technology ensures stable contact resistance even after extended use in vibration or thermal cycling environments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-146-04-S-D-LC datasheet?
TFM-146-04-S-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-146-04-S-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many pins does the TFM-146-04-S-D-LC provide, and how does the dual-row 0.050" pitch affect routing density?
The TFM-146-04-S-D-LC provides 92 positions in a dual-row (2x46) arrangement on a 0.050" (1.27 mm) pitch, delivering twice the pin density per unit board length compared to a standard 0.100" (2.54 mm) pitch header. This enables engineers to route 92 signals across a board interface in roughly the same PCB footprint that a conventional dual-row 0.100" connector would require for only 46 positions.
For which high-reliability industries does the Tiger Eye contact system in the TFM-146-04-S-D-LC offer the most significant performance benefit?
Military avionics, aerospace data acquisition systems, and industrial robotics benefit most from the Tiger Eye contact system, which maintains reliable low contact resistance across hundreds of mate-unmate cycles while withstanding vibration and shock loads. In a 92-position connector carrying mixed signal and power lines, the wiping action of the Tiger Eye contacts prevents oxide buildup that could cause intermittent failures in critical real-time control or data-recording applications.
When is the short low-clearance TFM-146-04-S-D-LC a better procurement choice than the standard-height TFM series for mezzanine card designs?
The short low-clearance variant is the better choice when the mechanical envelope constrains the board-to-board gap to less than a standard TFM body height, such as in slim 1U or 2U rack-mount chassis, compact embedded modules, or stacked mezzanine PCBs with board spacing below 10 mm. Selecting the S-LC body style avoids costly mechanical rework or custom spacers while maintaining the full 92-position signal count and Tiger Eye reliability of the standard series.
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