TFC-124-02-LM-D-A SAMTEC Connector (Other) In Stock
TFC-124-02-LM-D-A is a SAMTEC Tiger Eye 48-position dual-row terminal strip at 0.050" (1.27 mm) pitch with low-profile SMT mounting and dual-row layout. Rated at 2 A per contact for mixed signal and power distribution in high-density board-to-board interconnect. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- TFC-124-02-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 48-position dual-row layout at 0.050" (1.27 mm) pitch achieves high signal density in a short connector footprint for compact PCB designs
- Tiger Eye wiping contact geometry ensures low contact resistance below 20 milliohms and reliable electrical continuity across repeated mating cycles
- 2 A per-contact current rating permits mixed power and signal routing within a single 48-pin connector, eliminating separate power headers
- Low-profile SMT (-LM) termination style suits reflow soldering and automated assembly on thin board stacks with height constraints
Applications
TFC-124-02-LM-D-A is used in FPGA daughter-card connections, embedded computing module stacking, and high-density instrumentation where 48 signals must pass through a 0.050" pitch dual-row connector. Its 2 A per contact rating allows power and high-speed data signals to share the same connector body in rack-mount compute and storage systems. The low-profile SMT termination suits thin form-factor designs such as COM Express modules and industrial IoT edge compute boards.
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 pin count and pitch of TFC-124-02-LM-D-A, and how does it compare to a standard 0.100" header in board space?
TFC-124-02-LM-D-A has 48 positions in a dual-row configuration at 0.050" (1.27 mm) pitch, giving 24 columns. At 0.050" column spacing the connector body length is approximately 30.5 mm, roughly half the length of an equivalent 48-position dual-row 0.100" header. This halving of connector footprint is a major advantage in densely routed FPGA carrier or embedded compute PCB designs where routing channels are scarce.
For a signal-integrity-sensitive FPGA interface, how does the Tiger Eye contact in TFC-124-02-LM-D-A perform at data rates above 1 Gbps?
SAMTEC Tiger Eye contacts maintain consistent normal force of approximately 100 gF across mating cycles, yielding contact resistance below 20 milliohms and minimizing reflections. The 0.050" pitch dual-row geometry also keeps pin-to-pin capacitance low, typically under 0.5 pF per pin, enabling signal integrity at differential data rates up to 3 Gbps without requiring exotic low-loss PCB materials for the connector transition.
Can TFC-124-02-LM-D-A carry power in addition to digital signals, and what is the maximum power per connector?
Each contact in TFC-124-02-LM-D-A is rated for 2 A continuous current. With 48 contacts total, designers can dedicate 4 pins to a 3.3 V rail (8 A maximum), 4 pins to a 1.8 V rail, and use the remaining 40 for high-speed I/O — a common allocation in FPGA mezzanine card (FMC) designs. Total power delivery capability across all 48 pins reaches up to 96 A in theory, though thermal and derating constraints in practice limit shared connectors to substantially less.
Which SAMTEC mating receptacle series is designed to mate with TFC-124-02-LM-D-A for board stacking applications?
TFC-124-02-LM-D-A mates with SAMTEC TFM or FLE series receptacles in the Tiger Eye 0.050" family, specifically 2×24 dual-row variants. Stacking height options range from approximately 4 mm to 12 mm depending on the receptacle post length, allowing designers to accommodate different component heights on the mezzanine card. The Tiger Eye mating interface also tolerates ±0.1 mm of lateral misalignment during card insertion.
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