SFM-123-T2-H-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-T2-H-D-A-K is a 46-position dual-row high-reliability socket strip with 1.27 mm (0.050 inch) pitch, surface mount termination, and gold-plated contacts for dense fine-pitch PCB interconnect applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-T2-H-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 46-position dual-row layout at 1.27 mm (0.050 inch) pitch achieves twice the density of standard 2.54 mm connectors
- High-reliability socket strip design with gold-plated contacts for low contact resistance and long cycle life
- Surface mount termination enables co-planar reflow soldering for compact high-density PCB assemblies
- SAMTEC SFM series Tiger Eye or equivalent contact retention ensures secure mating under vibration and shock
Applications
The SFM-123-T2-H-D-A-K is designed for high-density surface mount socket interconnects in compact embedded computing modules, FMC mezzanine cards, and high-speed data acquisition boards where the fine 1.27 mm pitch maximizes signal count within a small PCB footprint. Its 46-position dual-row format supports 23 differential pairs, making it suitable for LVDS, SERDES, and high-speed parallel bus applications. The surface mount style and gold-plated contacts ensure reliable performance in demanding telecommunications and aerospace electronics environments.
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 pitch and pin count does the SFM-123-T2-H-D-A-K use, and how does this compare to standard 2.54 mm connectors?
The SFM-123-T2-H-D-A-K uses a 1.27 mm (0.050 inch) pitch with 46 total positions in a dual-row arrangement. This fine pitch packs twice the contact density of standard 2.54 mm connectors, enabling 23 differential pairs within roughly the same board area as a 12-pin 2.54 mm connector.
For which high-speed signal applications is the SFM-123-T2-H-D-A-K particularly well suited?
The SFM-123-T2-H-D-A-K suits LVDS, CMOS parallel buses, and SERDES interfaces running at frequencies up to several GHz, thanks to its fine 1.27 mm pitch that reduces inter-contact capacitance. FPGA mezzanine cards, high-speed ADC boards, and FMC-standard modules commonly use this connector type.
What mating connector family is compatible with the SAMTEC SFM-123-T2-H-D-A-K socket strip?
The SFM series is designed to mate with SAMTEC TSM or compatible 1.27 mm pitch dual-row pin header strips. The 46-position format requires a mating pin header with the same 23-position-per-row arrangement, and the mating insertion force is typically below 2 N per contact for easy blind-mate assembly.
How does gold plating on SFM-123-T2-H-D-A-K contacts affect long-term reliability in moist environments?
Gold plating (K option) on the mating contacts provides a contact resistance below 20 milliohms and prevents oxide formation that degrades signal quality in humid or marine environments. Gold is rated for operating conditions up to 85°C and 95% relative humidity, making this connector suitable for industrial enclosures without additional moisture sealing.
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