TFC-149-02-L-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC TFC-149-02-L-D-A-K is a 298-position Tiger Eye cost-effective terminal strip with 0.050-inch pitch and dual-row through-hole construction, delivering high-density signal connections with reliable Tiger Eye contacts. Right-angle (L) termination suits edge-mount and horizontal mating configurations. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- TFC-149-02-L-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 298 positions (149 per row) at 0.050-inch pitch for very high signal density in a single connector
- Tiger Eye bifurcated contact design providing dual-wipe low-resistance connection at each pin
- Right-angle (L) termination enabling horizontal board-edge mating and space-saving PCB layouts
- Cost-effective design combining Tiger Eye reliability with competitive per-position pricing for volume builds
Applications
The TFC-149-02-L-D-A-K is deployed in high-density backplane and card-edge interconnect systems, FPGA I/O expansion boards, and multi-channel data acquisition instruments where 298 right-angle through-hole signal connections are needed in a single connector. Its Tiger Eye contacts and right-angle orientation suit horizontal mating configurations in rack-mounted systems, industrial field-bus modules, and parallel-bus evaluation platforms.
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 pin count and pitch of the TFC-149-02-L-D-A-K, and how does the dual-row layout help in dense designs?
The TFC-149-02-L-D-A-K has 298 total positions across 2 rows of 149 pins each at 0.050-inch (1.27 mm) pitch. The dual-row arrangement doubles the number of signals per unit length of connector body, allowing designers to consolidate a very large signal bus into a single connector and minimize the occupied board area compared to using several lower-count alternatives.
Why would an engineer choose the right-angle (L) termination style of the TFC-149-02-L-D-A-K over straight-pin variants?
The L (right-angle) termination directs the solder tails horizontally along the PCB surface rather than straight down, which allows the connector to mate with a cable or board presented parallel to the PCB plane. This is ideal for card-edge or front-panel access scenarios in rack-mounted equipment, reducing overall system height. Right-angle connectors also provide a mechanical lever advantage that can ease hand-insertion of mating connectors in field-service situations.
Which application scenarios benefit most from the TFC-149-02-L-D-A-K at 0.050-inch pitch?
This connector is well suited for FPGA mezzanine card I/O buses carrying 200+ differential or single-ended signals, parallel acquisition front-ends in oscilloscopes and logic analyzers, and VME or VPX backplane transition module interconnects. At 0.050-inch pitch, it can carry digital signals at rates up to several hundred MHz with careful PCB impedance control, making it a practical choice for high-speed parallel data paths in industrial and instrumentation designs.
How does the SAMTEC Tiger Eye technology in the TFC-149-02-L-D-A-K affect long-term mating reliability?
Tiger Eye contacts use a bifurcated beam geometry that creates 2 independent contact points per pin, so if one wipe path encounters surface contamination, the second beam maintains a low-resistance connection. SAMTEC specifies Tiger Eye contacts for extended mating cycle durability, typically rated beyond 500 cycles, which is critical in test-fixture sockets and production jigs where connectors are repeatedly engaged and disengaged. This dual-wipe approach also lowers the measured contact resistance variation across all 298 positions in the TFC-149-02-L-D-A-K.
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