SFM-125-T2-H-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-T2-H-D-LC is a 50-position dual-row high-reliability surface mount socket strip with 0.050" (1.27 mm) pitch and low-clearance (LC) profile. Features enhanced contact plating for extended cycle life and superior signal integrity in demanding applications. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- SFM-125-T2-H-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row 0.050" (1.27 mm) pitch SMT socket strip with low-clearance (LC) profile for slim board stacks
- High-reliability (H) grade contact system rated for 500+ mating cycles with minimal contact resistance increase
- Low-clearance (LC) variant enables board-to-board stacking heights as low as a few millimeters for compact module assemblies
- Dual-row layout provides 25 positions per row, optimizing signal density for FPGA, SoC, and mezzanine card interfaces
Applications
The SFM-125-T2-H-D-LC is ideal for compact board-to-board and mezzanine module stacking applications in aerospace, defense electronics, and high-performance embedded computing where a low-clearance 0.050" pitch connector with 50 positions minimizes stack height. Its high-reliability rating supports demanding environments such as ruggedized avionics systems, portable military radios, and industrial controllers with frequent connector mating cycles. The dual-row SMT design integrates easily into automated assembly processes for high-density signal routing between carrier boards and expansion modules.
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 makes the low-clearance (LC) variant of SFM-125-T2-H-D-LC different from standard SFM series connectors?
The low-clearance (LC) designation on the SFM-125-T2-H-D-LC specifies a reduced mated board-to-board stack height compared to standard SFM variants, enabling board separations as small as a few millimeters. This is critical in slim module assemblies, wearable electronics, and portable instruments where every millimeter of stack height matters and a 50-position 0.050" pitch interface must fit within tight dimensional envelopes.
How many mating cycles is the SFM-125-T2-H-D-LC rated for and what industries require this?
The high-reliability (H) grade SFM-125-T2-H-D-LC is rated for 500 or more mating cycles with contact resistance remaining below specified limits, meeting requirements for aerospace, defense, and medical electronics where connectors are frequently disconnected for maintenance, testing, or field repair. The enhanced gold-plated contact finish sustains low contact resistance across the full 50 positions through repeated use at operating temperatures from -55°C to +125°C.
Can SFM-125-T2-H-D-LC be used with automated SMT pick-and-place assembly equipment?
The SFM-125-T2-H-D-LC is a surface mount component compatible with automated SMT pick-and-place assembly and reflow soldering at lead-free peak temperatures up to 260°C per J-STD-020. Its dual-row 0.050" pitch layout maintains coplanarity across all 50 positions to ensure reliable solder joint formation without hand-soldering, supporting high-volume production workflows in telecommunications, medical device, and industrial electronics manufacturing.
What is a cost-effective alternative to SFM-125-T2-H-D-LC for lower-reliability applications?
For applications that do not require the high-reliability (H) grade, the standard SFM-125-T2-D-LC (without the H designation) offers the same 50-position dual-row 0.050" pitch and low-clearance profile at a lower cost. Alternatively, the SFM-125-L2-D-LC provides a longer tail SMT termination option; designers should select based on board thickness and solder paste requirements rather than contact cycle life when mating cycles are expected to remain below 100.
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