TFM-144-03-S-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-144-03-S-D-LC is a 288-pin dual-row Tiger Eye terminal strip at 0.050-inch pitch with low-clearance single-piece SMT design for high-density board interconnects. Delivers reliable signal connectivity in compact stacked PCB assemblies. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- TFM-144-03-S-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-144-03-S-D-LC?
- 0.050-inch (1.27 mm) pitch dual-row terminal strip with 288 total pins enabling twice the pin density of 0.100-inch pitch alternatives in the same board area
- Tiger Eye high-reliability contact system with double-wipe gold-plated contacts maintains contact resistance below 20 mΩ over thousands of mating cycles
- Low-clearance (LC) design minimizes mated stack height for slim mezzanine assemblies and 1U rack modules where vertical board spacing is less than 5 mm
What is TFM-144-03-S-D-LC used for?
The TFM-144-03-S-D-LC is designed for high-density mezzanine and daughtercard interconnects in telecom line cards, embedded computing blades, and compact FPGA modules where 288 signals must be routed in a minimal footprint. Its 0.050-inch pitch and low-clearance profile support tight board-to-board stacking configurations used in 1U server and network equipment designs. The Tiger Eye contact reliability makes it suitable for long-life industrial and communications infrastructure applications with demanding signal integrity requirements.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-144-03-S-D-LC datasheet?
TFM-144-03-S-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-144-03-S-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the TFM-144-03-S-D-LC compare to a 0.100-inch pitch alternative in terms of signal density per unit board area?
At 0.050-inch (1.27 mm) pitch, the TFM-144-03-S-D-LC achieves 4 times the pin density per unit area compared to a 0.100-inch pitch connector of the same pin count. Its 288 pins in dual-row format fit within a footprint approximately half the length of a comparable 0.100-inch pitch 144-pin connector, critical for high-density telecom line cards or FPGA mezzanine boards with limited PCB real estate.
For a 1U rack-mount blade server, how does the low-clearance (LC) design of the TFM-144-03-S-D-LC help with stack height constraints?
The LC designator indicates a reduced mated stack height, typically allowing board-to-board spacing of 2 mm or less, well within the tight vertical clearances found in 1U rack blade assemblies where total PCB stack height must remain under 10 mm. This enables the TFM-144-03-S-D-LC to be used in compact server blades and network switch line cards without sacrificing the 288-pin signal capacity needed for high-bandwidth data routing.
What makes the Tiger Eye contact mechanism in the TFM-144-03-S-D-LC more reliable than a standard single-beam contact for long-life applications?
The Tiger Eye contact uses a double-wipe design where 2 contact points simultaneously engage the mating surface with gold-plated (30 µin gold over 50 µin nickel) terminations, ensuring redundant electrical paths and displacing surface oxides or contaminants that degrade single-wipe contacts over time. This dual-contact wiping action sustains contact resistance below 20 mΩ across thousands of insertion cycles, making it well-suited for telecommunications infrastructure equipment with 10-plus-year design lifetimes.
Is the TFM-144-03-S-D-LC readily available for volume procurement, and what packaging formats support automated SMT assembly?
SAMTEC's TFM series benefits from Tiger Buy stocking programs with lead times as short as 1 week for standard configurations, and the TFM-144-03-S-D-LC ships to customers worldwide. For SMT production runs, tape-and-reel packaging is available to support high-speed automated pick-and-place equipment, and SAMTEC offers volume pricing breaks starting at quantities of 100 pieces, making both prototype and production procurement straightforward.
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