TFC-144-02-L-D-A-K-TR SAMTEC Connector (Other) In Stock
TFC-144-02-L-D-A-K-TR is a SAMTEC Tiger Eye 88-position dual-row terminal strip with 0.050" (1.27 mm) pitch in a low-profile SMT package with tape-and-reel packaging. Rated at 2 A per contact and includes a polarizing key to prevent mis-insertion. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- TFC-144-02-L-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 88-position dual-row layout at 0.050" (1.27 mm) pitch provides the highest signal density in the Tiger Eye terminal strip family for FPGA and high-speed PCB interconnect
- Polarizing key (-K option) prevents incorrect connector orientation during field replacement, reducing risk of board damage in production and maintenance
- 2 A per-contact current capacity enables combined power and high-speed signal routing within the same 88-pin connector body
- Tape-and-reel (-TR) packaging is fully compatible with standard SMT pick-and-place equipment, supporting high-volume automated assembly lines
Applications
TFC-144-02-L-D-A-K-TR is deployed in high-pin-count FPGA mezzanine card (FMC) interconnect, server blade-to-backplane interfaces, and advanced telecom line cards where 88 signal and power connections must fit within a 0.050" pitch dual-row footprint. Its polarizing key prevents mis-orientation during daughtercard installation, which is critical in hot-swap rack-mount equipment and field-serviceable embedded computing systems. Tape-and-reel packaging suits high-throughput SMT assembly for volumes above 500 assemblies per shift.
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 total pin count does TFC-144-02-L-D-A-K-TR provide, and how does the 0.050" pitch compare to a 0.100" alternative in connector body length?
TFC-144-02-L-D-A-K-TR has 88 positions in a 2-row layout at 0.050" (1.27 mm) pitch, giving 44 columns. The connector body length is approximately 55.9 mm. An equivalent 88-position dual-row connector at 0.100" pitch would measure about 111 mm — double the length — making the 0.050" Tiger Eye version the preferred choice wherever PCB routing channels between connectors are narrower than 60 mm.
How does the polarizing key (-K) option on TFC-144-02-L-D-A-K-TR prevent mis-insertion damage in a hot-swap server application?
The -K suffix adds a molded plastic polarizing peg on the connector housing that mates only with a corresponding keyway on the receptacle. In a 2 A per pin, 88-position connector, inserting the plug reversed without this key could apply 3.3 V or 5 V power pins directly to signal I/O pads, potentially destroying FPGA I/O banks rated at 1.8 V. The polarizing key blocks insertion beyond approximately 3 mm unless properly aligned, making it a zero-cost board protection measure in hot-swap equipment.
For an FMC (FPGA Mezzanine Card) design, how many high-speed differential pairs can TFC-144-02-L-D-A-K-TR accommodate alongside power pins?
With 88 total contacts and the VITA 57.1 FMC standard pin assignment, a typical allocation reserves 10 pins for VCC (3.3 V at 2 A each = 20 A total), 8 pins for ground, and 4 pins for control signals, leaving 66 pins for high-speed signals. At 0.050" dual-row pitch with differential pairs routed on adjacent columns, TFC-144-02-L-D-A-K-TR can carry up to 33 differential pairs simultaneously, each capable of 3 Gbps with matched-length PCB routing.
Between TFC-143-02-L-D-A-K-TR (86 positions) and TFC-144-02-L-D-A-K-TR (88 positions), which is preferred for a design needing 84 signal pins plus 4 dedicated ground returns?
TFC-144-02-L-D-A-K-TR with 88 positions provides exactly 88 pins, fitting 84 signal pins plus 4 ground returns with no unused contacts. TFC-143-02-L-D-A-K-TR at 86 positions would leave only 82 signal pins after 4 grounds, requiring an additional connector or power-pin reassignment. Selecting TFC-144-02-L-D-A-K-TR avoids this constraint and adds 2 spare pins for future expansion without changing the PCB form factor.
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