TFC-127-02-FM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-127-02-FM-D-A is a 54-position dual-row Tiger Eye cost-effective terminal strip with 0.050 inch pitch and floating-mount (FM) termination for board-level signal connections. Designed to accommodate PCB tolerance variations while maintaining reliable contact across all 54 pins. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- TFC-127-02-FM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 54-position dual-row terminal strip at 0.050 inch pitch for cost-effective high-density board-level connectivity
- Floating-mount (FM) termination accommodates PCB-to-PCB misalignment tolerances of up to ±0.5 mm for improved assembly yield
- Tiger Eye dual-beam contact design provides low insertion force with reliable wiping action and stable contact resistance
- Gold-plated contacts minimize oxidation and ensure consistent signal integrity across the 54-position interface
Applications
The TFC-127-02-FM-D-A is designed for board-to-board and mezzanine interconnect applications where PCB positional tolerance compensation is critical, such as in industrial control panels, telecom equipment, and embedded computing platforms. Its floating-mount feature absorbs XY misalignment between mating boards during assembly, reducing connector stress and improving long-term reliability. The 54-position dual-row layout at 0.050 inch pitch enables dense signal routing in space-constrained PCB designs.
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 advantage does the floating-mount (FM) termination of the TFC-127-02-FM-D-A provide over fixed-mount terminal strips?
The floating-mount (FM) feature allows the TFC-127-02-FM-D-A to self-align during mating, absorbing PCB-to-PCB positional misalignments of up to approximately ±0.5 mm in the XY plane. This reduces mechanical stress on the 54-position dual-row connector at 0.050 inch pitch and improves assembly yield in production environments where board registration tolerances vary.
For which high-density PCB interconnect scenarios is a 54-position 0.050 inch pitch terminal strip the right choice over a lower pin count?
When a design requires routing 54 or more signals between two boards in a compact area, the TFC-127-02-FM-D-A at 0.050 inch pitch fits all 54 positions into approximately 34 mm of PCB length. Applications such as industrial control daughter cards, telecom line modules, and embedded computing mezzanine boards benefit from this high pin density without increasing PCB footprint.
How does the Tiger Eye contact design in the TFC-127-02-FM-D-A contribute to signal reliability?
SAMTEC's Tiger Eye contacts use a dual-beam wiping action that clears surface oxides and debris upon each mating cycle, maintaining contact resistance well below 20 milliohms across all 54 positions. The gold-plated contact surfaces further resist corrosion, ensuring consistent signal quality in environments with humidity or mild contamination.
Is the TFC-127-02-FM-D-A a lower-cost alternative to SAMTEC's high-reliability socket strips for moderate-duty interconnects?
Yes, the TFC series is SAMTEC's cost-effective terminal strip line, providing Tiger Eye gold-plated contacts at 0.050 inch pitch across 54 dual-row positions at a lower unit price than high-reliability socket strips rated for thousands of mating cycles. It is suitable for industrial and consumer products where the interconnect sees fewer than a few hundred mate/unmate cycles over its service life.
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