SFM-149-L2-H-D-A-K SAMTEC Connector (Other) In Stock
The SFM-149-L2-H-D-A-K is a Samtec 98-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in a surface mount package. It provides 196 contacts total for ultra-high-density PCB-to-board mating in advanced electronics. Available from authorized distributors with global inventory and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- SFM-149-L2-H-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 196-contact (98 positions x 2 rows) 0.050" (1.27 mm) pitch socket strip enabling ultra-high-density board-to-board interconnects in minimal PCB area
- High-reliability contact system designed for 500 or more mating cycles with stable contact resistance across extended temperature ranges from -55°C to +125°C
- Surface mount termination with horizontal (L2) lead style for low-profile SMT assembly compatible with automated reflow soldering processes
Applications
The SFM-149-L2-H-D-A-K is ideal for high-pin-count mezzanine card sockets, FPGA module interfaces, and advanced processor board-to-board stacking that require 196 contacts in a compact SMT footprint. Its fine 1.27 mm pitch and dual-row layout support high-speed parallel buses and mixed power-signal connections in defense electronics, data center networking, and scientific instrumentation. The high-reliability construction ensures consistent performance in vibration-prone and thermally demanding industrial and aerospace 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
How many contacts does the SFM-149-L2-H-D-A-K provide and what is its row configuration?
The SFM-149-L2-H-D-A-K provides 196 contacts arranged in a dual-row layout with 98 positions per row at a 0.050 inch (1.27 mm) pitch. This high contact count in a fine-pitch dual-row format enables dense parallel bus connections between stacked boards without requiring multiple separate connectors or larger board area.
For which high-reliability applications is the SFM-149-L2-H-D-A-K specifically designed?
This connector is specifically designed for applications requiring sustained performance across 500 or more mating cycles and operating temperatures from -55°C to +125°C, such as military avionics, space electronics, industrial robotics, and telecommunications infrastructure. Its high-reliability grade makes it suitable where standard commercial connectors would experience contact degradation or mechanical failure over time.
What does the L2 lead style designation mean for the SFM-149-L2-H-D-A-K mounting process?
The L2 designation indicates a horizontal lead style optimized for surface mount reflow assembly, allowing the connector to be placed flat onto PCB pads and soldered in a standard convection reflow oven at peak temperatures up to 260°C. This eliminates through-hole drilling requirements and supports fully automated SMT assembly for production volumes requiring consistent placement of all 196 pins.
How does the SFM-149-L2-H-D-A-K benefit FPGA and processor module designs over lower pin-count alternatives?
With 196 pins at 1.27 mm pitch, the SFM-149-L2-H-D-A-K accommodates wide parallel buses including 128-bit or wider data paths, multiple power rails, and control signals in a single compact mating interface. Compared to using four 49-position connectors, a single 98-position dual-row connector reduces PCB routing complexity, lowers mating force variability, and shrinks the total connector footprint by roughly 40 percent.
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