SFM-124-T2-SM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-124-T2-SM-D-A-K is a 48-position dual-row high-reliability surface mount socket strip with 0.050 inch pitch and short metal latch retention for secure PCB-to-PCB mating. Features 24 pins per row for ultra-high-density interconnects. Available in stock worldwide with competitive pricing.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- SFM-124-T2-SM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 48-position dual-row socket at 0.050 inch (1.27 mm) pitch providing 24 pins per row for ultra-high-density PCB-to-PCB signal connections in compact board layouts
- Short metal latch (SM) retention ensuring reliable mechanical coupling and preventing accidental unmating under vibration and shock conditions
- High-reliability SMT socket strip design with spring contacts maintaining consistent electrical performance across thermal cycling from -55°C to +125°C
Applications
The SAMTEC SFM-124-T2-SM-D-A-K is designed for high-density, high-reliability PCB-to-PCB socket applications in military, aerospace, industrial automation, and medical electronics where 48 signal channels must be reliably connected in space-constrained assemblies. Its 0.050 inch pitch dual-row footprint spans a minimal PCB area compared to 0.100 inch pitch alternatives, making it ideal for daughter card interfaces, FPGA expansion modules, and RF module sockets. The short metal latch provides additional mechanical retention to keep the mated assembly secure under shock and vibration.
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
How does the 0.050 inch pitch of SFM-124-T2-SM-D-A-K reduce PCB footprint compared to standard 0.100 inch pitch sockets?
At 0.050 inch (1.27 mm) pitch with 24 positions per row in a dual-row configuration, the SFM-124-T2-SM-D-A-K occupies approximately 1.2 inches (30 mm) of linear PCB length for 48 contacts, compared to roughly 2.4 inches (61 mm) required by a 0.100 inch pitch 48-position strip. This 50% footprint reduction is critical for high-density daughter card and module designs where every millimeter of board space is reserved for functional circuitry.
What role does the short metal latch (SM) play in securing SFM-124-T2-SM-D-A-K in vibration environments?
The short metal latch (SM) feature of SFM-124-T2-SM-D-A-K provides mechanical retention between the socket and its mating header by engaging a locking tab upon full insertion. In vibration environments such as industrial machinery or aerospace platforms subject to accelerations exceeding 5g, the metal latch prevents the 48 contacts from partially unmating, maintaining consistent signal integrity and preventing intermittent electrical failures that would occur without mechanical retention.
For a 48-channel data acquisition module, how does SFM-124-T2-SM-D-A-K compare to SFM-121-L2-LM-D-A-K?
The SFM-124-T2-SM-D-A-K provides 48 positions at 0.050 inch pitch with a short metal latch, while the SFM-121-L2-LM-D-A-K offers 42 positions with a long metal latch. For 48-channel applications, SFM-124-T2-SM-D-A-K is the direct fit as it provides all 48 signal contacts in a single connector, whereas SFM-121-L2-LM-D-A-K would require supplementary contacts. The longer latch of the SFM-121 series provides stronger retention, while the SM latch of SFM-124 is sufficient for most industrial vibration profiles up to approximately 10g.
Is SFM-124-T2-SM-D-A-K suitable for high-speed digital signals at frequencies above 100 MHz?
The SFM-124-T2-SM-D-A-K's 0.050 inch pitch and surface mount construction minimize stub length and parasitic inductance per contact, generally supporting signal integrity for digital interfaces operating at 100 MHz to several hundred MHz. SAMTEC SFM series sockets are typically characterized for signal propagation with insertion loss below -1 dB at 500 MHz in matched-impedance systems, making them suitable for USB 2.0, LVDS, and similar moderate-speed differential interfaces routed across the 48-contact socket.
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