SFM-123-T2-LM-D-LC SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-T2-LM-D-LC is a 46-position dual-row high-reliability socket strip on a fine 0.050 inch (1.27 mm) pitch, designed for surface mount board-to-board or mezzanine card interconnection. Gold-plated contacts rated at 1 A per pin deliver low-resistance signal and light-power distribution in a compact SMT footprint. Available from authorized global distributors with worldwide shipping for samples and production orders.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-T2-LM-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-123-T2-LM-D-LC?
- 46 positions in dual-row 0.050" (1.27 mm) pitch enabling ultra-compact surface mount board-to-board interconnection
- High-reliability socket strip construction with gold-plated contacts for low insertion resistance and extended mating cycle life
- 1 A per contact rating supports signal and low-power distribution across all 46 positions simultaneously
- Low-profile surface mount footprint compatible with standard lead-free reflow assembly processes up to 260 °C
What is SFM-123-T2-LM-D-LC used for?
The SFM-123-T2-LM-D-LC is used in mezzanine card, daughter-board, and module-to-carrier interconnect designs in defense avionics, high-reliability industrial computing, and advanced test equipment where a compact 46-position fine-pitch socket is required. Its gold-plated contacts and high-reliability socket construction provide stable contact resistance across thousands of mating cycles and wide temperature ranges. The 0.050 inch pitch allows designers to route 46 signals in a connector body less than half the length required by standard 0.100 inch alternatives.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-123-T2-LM-D-LC datasheet?
SFM-123-T2-LM-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-123-T2-LM-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and rows does the SFM-123-T2-LM-D-LC provide, and at what pitch?
The SFM-123-T2-LM-D-LC provides 46 contact positions in a dual-row configuration of 23 contacts per row, on a 0.050 inch (1.27 mm) pitch. This fine pitch delivers roughly twice the contact density per unit board length compared to 0.100 inch pitch alternatives, making it ideal for compact mezzanine card and daughter-board designs where PCB space is at a premium.
For a defense or aerospace design, what makes the SFM-123-T2-LM-D-LC more suitable than a standard commercial socket strip?
The SFM-123-T2-LM-D-LC is built to SAMTEC's high-reliability socket strip standard, featuring gold-plated contacts rated for thousands of mating cycles with stable contact resistance typically below 20 milliohms. It withstands operating temperatures from -55 °C to +125 °C and is qualified for environments with vibration and mechanical shock, meeting the durability demands of avionics, defense electronics, and space-grade computing where commercial grade components would degrade prematurely.
What current can each contact in the SFM-123-T2-LM-D-LC handle, and how can contacts be combined for power rails?
Each contact in the SFM-123-T2-LM-D-LC is rated at 1 A. For higher-current power rails, designers can connect multiple contacts in parallel — for example, 3 contacts in parallel supply up to 3 A for a 3.3 V bus, while the remaining 43 contacts carry independent signal lines, making the connector flexible for mixed signal-and-power distribution on a single 46-position socket.
Is the SFM-123-T2-LM-D-LC compatible with standard SMT reflow assembly processes?
Yes, the SFM-123-T2-LM-D-LC is a surface mount component compatible with lead-free reflow profiles conforming to IPC/JEDEC J-STD-020, with a recommended peak reflow temperature not exceeding 260 °C. Its SMT footprint fits standard 0.050 inch pitch PCB land patterns, and the component can be placed with automated pick-and-place equipment, eliminating the need for manual soldering across all 46 positions.
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About SAMTEC
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