TFC-122-02-FM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC TFC-122-02-FM-D-A-K is a 44-position dual-row Tiger Eye cost-effective terminal strip with 0.050 inch pitch, providing 88 total contacts for high-density board-to-board connections in industrial, computing, and embedded applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- TFC-122-02-FM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 44-position dual-row layout at 0.050 inch (1.27 mm) pitch delivers 88 total contacts in a compact PCB footprint for mid-to-high density board-to-board signal routing
- Tiger Eye contact design provides a wiping mating action that maintains low contact resistance and reliable electrical performance across repeated connection cycles
- K keying feature prevents incorrect connector mating and protects against board damage in field-replaceable or multi-connector assemblies
Applications
The TFC-122-02-FM-D-A-K is designed for mid-density board-to-board interconnect in embedded computing, industrial automation, and communication systems requiring 88 contacts at 0.050 inch pitch. Its K keying feature ensures correct connector orientation in systems with multiple similar connectors, reducing assembly errors in high-volume manufacturing. This terminal strip is also well-suited for data acquisition modules, PLC expansion cards, and test fixture interfaces where reliable 44-channel connectivity between stacked PCBs is required.
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 is the total contact count and pitch of the TFC-122-02-FM-D-A-K?
The TFC-122-02-FM-D-A-K is a dual-row terminal strip with 44 positions per row, providing 88 total contacts at a 0.050 inch (1.27 mm) pitch. This configuration is suited for mid-density applications such as 32-bit parallel buses with control signals, or 44-channel sensor interface boards where many signals must pass between stacked PCBs efficiently.
What function does the K keying feature serve in the TFC-122-02-FM-D-A-K?
The K keying feature in the TFC-122-02-FM-D-A-K is a mechanical polarization mechanism that prevents incorrect mating orientation. In assemblies with multiple similar-looking connectors, this keying ensures that boards can only be connected in the correct orientation, protecting the 88 contacts and downstream circuitry from damage caused by reversed or misaligned insertion during field servicing or high-volume assembly.
How does the Tiger Eye contact in TFC-122-02-FM-D-A-K maintain reliable performance over time?
The Tiger Eye contact mechanism in the TFC-122-02-FM-D-A-K uses a dual-beam wiping action during each mate cycle. This wiping clears surface oxidation and contamination from the 88 contact surfaces, keeping contact resistance low—typically under 20 milliohms—and extending reliable electrical life over hundreds of insertion cycles. This makes the connector well-suited for applications such as test fixtures or removable daughter cards that undergo frequent connect-disconnect events.
Which applications benefit most from the 44-position count of the TFC-122-02-FM-D-A-K compared to smaller or larger SAMTEC TFC variants?
The 44-position TFC-122-02-FM-D-A-K with 88 contacts is ideal for designs requiring more connectivity than 32-pin or 40-pin dual-row connectors, such as 36-bit memory buses with ECC, or industrial I/O cards with 40 digital channels plus 4 analog inputs. It is more compact and lower cost than 60-position or 80-position variants when the design does not need more than 88 total connections.
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