SFM-123-02-FM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-123-02-FM-D-A-K-TR is a 46-position dual-row 0.050" pitch surface-mount high-reliability socket strip with flush-mount (FM) termination and gold-plated contacts rated for 1 A per pin. Suited for high-channel-count mezzanine board-to-board interconnects requiring low-profile and secure-mating kinematic retention.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- SFM-123-02-FM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 46-position dual-row layout at 0.050" (1.27 mm) pitch delivers high signal density in a compact SMT footprint
- Flush-mount (FM) termination and kinematic (K) locking retention prevent accidental unmating in vibration-prone environments
- Tape-and-reel (TR) packaging enables automated SMT pick-and-place assembly with consistent placement accuracy for high-volume production
Applications
The SFM-123-02-FM-D-A-K-TR is used in high-density mezzanine interconnect assemblies for FPGA daughtercards, test-and-measurement equipment, and industrial computing modules that require 46 signal connections at 0.050" pitch with secure mechanical retention. Its flush-mount design and kinematic locking feature make it reliable in board stacks subject to mechanical stress or vibration during field operation.
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 many positions does the SFM-123-02-FM-D-A-K-TR have, and what current can each contact handle?
The SFM-123-02-FM-D-A-K-TR provides 46 total positions in a dual-row format at 0.050" (1.27 mm) pitch, with 23 contacts per row. Each gold-plated contact is rated for 1 A continuous current, enabling mixed signal and low-power routing across 46 channels in a single compact SMT footprint.
What advantage does the flush-mount (FM) termination provide for the SFM-123-02-FM-D-A-K-TR compared to standard tail variants?
The flush-mount (FM) termination keeps solder tails flush with the connector body bottom, reducing the standoff height above the PCB surface and enabling placement in ultra-thin PCB stacks where standard SMT tails would add unwanted height. This is especially valuable for compact mezzanine designs with board separations below 5 mm, maintaining signal integrity across 46 positions.
In what industrial or ruggedized applications is the kinematic (K) locking feature of the SFM-123-02-FM-D-A-K-TR most critical?
The kinematic (K) retention system is most critical in transportation, industrial automation, and military-grade electronics where PCB stacks may experience vibration or shock loads exceeding several g-forces. This locking feature maintains reliable 1 A-rated contact engagement across 200+ mating cycles without requiring additional mechanical fasteners or brackets to prevent inadvertent unmating.
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