TFC-121-02-F-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC TFC-121-02-F-D-A-K is a 42-position Tiger Eye cost-effective terminal strip with 0.050" pitch and dual-row SMT mounting. It provides reliable signal connections in a compact footprint suitable for high-density PCB designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TFC-121-02-F-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-121-02-F-D-A-K?
- 42-position dual-row layout at 0.050" (1.27 mm) pitch enabling high-density interconnect in space-constrained designs
- Tiger Eye contact technology delivering superior normal force for consistent low-resistance electrical contact over thousands of mating cycles
- Surface-mount footprint compatible with standard SMT reflow soldering processes for streamlined PCB manufacturing
- Gold-plated contacts providing low contact resistance and long-term reliability against oxidation and corrosion
What is TFC-121-02-F-D-A-K used for?
The TFC-121-02-F-D-A-K is designed for high-density board-to-board and wire-to-board interconnect in telecommunications equipment, embedded computing platforms, and industrial control systems. Its 42-position, 0.050" pitch layout is ideal for connecting mezzanine cards, daughter boards, and backplane assemblies where signal count and board space must both be optimized. Medical devices and test instrumentation also benefit from its reliable contact performance and compact form factor.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFC-121-02-F-D-A-K datasheet?
TFC-121-02-F-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-121-02-F-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key dimensions and position count of the TFC-121-02-F-D-A-K connector?
The TFC-121-02-F-D-A-K is a 42-position dual-row terminal strip with a 0.050" (1.27 mm) pitch. This compact pitch allows routing of 42 signals within a minimal PCB footprint, making it highly suitable for telecom and embedded computing boards where connector density is a primary design constraint. The dual-row layout halves the board length compared to a single-row equivalent.
How does the Tiger Eye contact technology in TFC-121-02-F-D-A-K improve connection reliability?
Tiger Eye contacts are engineered to generate higher normal force compared to standard stamped contacts, which keeps the mating interface firmly engaged across temperature swings and vibration. This results in contact resistance typically under 20 milliohms and consistent signal integrity over thousands of insertion and extraction cycles. The design reduces the risk of intermittent connections in demanding industrial or telecom operating environments.
What PCB assembly method is compatible with the TFC-121-02-F-D-A-K, and what solder process does it support?
The TFC-121-02-F-D-A-K uses a surface-mount footprint fully compatible with standard SMT reflow soldering at temperatures up to 260°C per IPC-J-STD-020. This allows it to be placed and soldered alongside other SMT components in a single pass through a reflow oven, simplifying the assembly process and reducing manufacturing cycle time for high-volume PCB production runs.
In what applications is the 42-position TFC-121-02-F-D-A-K typically deployed?
This connector is widely used in networking switches, industrial PLCs, embedded computing modules, and medical instrumentation where 42 signals must be routed reliably at 1.27 mm pitch. It is also found in backplane assemblies and mezzanine card interfaces in defense electronics and test-and-measurement equipment, where the combination of high contact density, SMT mounting, and gold-plated contacts meets both space and reliability requirements.
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