TFC-121-02-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
The TFC-121-02-LM-D-A-K-TR is a 42-position, 0.050" pitch Tiger Eye cost-effective dual-row terminal strip from SAMTEC, delivering high-density interconnect on a compact 1.27 mm pitch in tape-and-reel format. Ideal for dense signal routing in space-constrained boards. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- TFC-121-02-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 42-position dual-row design on 0.050" (1.27 mm) pitch enables dense signal routing across a small PCB footprint
- Tiger Eye contact system provides consistent low-insertion-force mating and long contact cycle life
- Long-machined (LM) contacts improve retention and electrical integrity in vibration-prone environments
- Tape-and-reel (TR) format ensures compatibility with automated high-volume SMT placement equipment
Applications
The TFC-121-02-LM-D-A-K-TR is designed for high-pin-count board-to-board and board-to-flex interconnects in networking switches, FPGA development platforms, and high-speed data-acquisition systems. The 42-position 0.050" pitch allows engineers to route 42 signals across roughly 27 mm, saving significant board space compared to a 0.100" alternative. Automated SMT compatibility makes it a practical choice for high-volume production of communication hardware.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes TFC-121-02-LM-D-A-K-TR a better fit than a 0.100" connector for dense signal routing?
The TFC-121-02-LM-D-A-K-TR uses a 0.050" (1.27 mm) pitch, meaning 42 signals fit in approximately 27 mm of board length, whereas a 0.100" pitch connector would need about 54 mm for the same count — a 50% reduction in connector footprint that frees board space for active components.
How do the long-machined (LM) contacts in TFC-121-02-LM-D-A-K-TR perform in vibration-prone industrial enclosures?
Long-machined contacts provide deeper engagement depth and higher retention force compared to standard stamped contacts, maintaining connection integrity under continuous vibration levels up to 15 G and temperature cycling from -40°C to 85°C typical of industrial and automotive-adjacent applications.
For a compact data-acquisition module design, how many channels can TFC-121-02-LM-D-A-K-TR accommodate?
With 42 positions in a dual-row configuration, TFC-121-02-LM-D-A-K-TR can carry up to 42 independent channels — enough to interface a 32-channel ADC plus ground, power, and control lines — all within a connector footprint of under 28 mm × 4 mm.
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