SFM-145-L2-STL-D-A SAMTEC Connector (Other) In Stock
SAMTEC SFM-145-L2-STL-D-A is a 90-position dual-row SMT socket strip with 0.050" (1.27 mm) pitch and stacking hardware for precise board-to-board height control. Gold-plated contacts are rated at 3 A per pin and support operating temperatures from -55°C to +125°C. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 90
- Lifecycle
- ACTIVE
- Datasheet
- SFM-145-L2-STL-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 90-position dual-row layout on 0.050" (1.27 mm) pitch enables ultra-high-density board-to-board connections in space-constrained designs
- Stacking hardware (STL suffix) provides controlled board-to-board standoff height for reliable mezzanine and daughtercard assemblies
- Gold-plated contacts rated at 3 A per pin with -55°C to +125°C operating range for high-reliability industrial and telecom applications
Applications
The SFM-145-L2-STL-D-A is designed for high-density mezzanine and daughtercard interconnect applications in telecommunications infrastructure, data-center switching equipment, and rugged industrial control systems. Its stacking hardware enables precise board-to-board height control, making it ideal for multi-board stack assemblies where mechanical alignment and signal integrity across 90 positions are critical.
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 is the pitch and position count of the SFM-145-L2-STL-D-A, and what current rating do its contacts carry?
The SFM-145-L2-STL-D-A provides 90 positions on a 0.050" (1.27 mm) pitch in a dual-row surface-mount configuration, with each gold-plated female contact rated at 3 A continuous current, making it suitable for dense signal and moderate power distribution in mezzanine card applications.
How does the stacking hardware (STL) in the SFM-145-L2-STL-D-A benefit mezzanine board designs?
The STL stacking hardware sets a defined board-to-board standoff height, typically 2 mm to 8 mm depending on the selected stack, ensuring consistent mechanical alignment across 90 positions and reducing the risk of contact wipe and intermittent connections during thermal cycling from -55°C to +125°C.
When should a designer choose the SFM-145-L2-STL-D-A over a lower-density 0.100" pitch alternative?
When PCB real estate is limited and routing 90 signals in a dual-row footprint is necessary, the 0.050" pitch of the SFM-145-L2-STL-D-A reduces the connector footprint by approximately 50% compared with equivalent 0.100" pitch socket strips, enabling more compact daughtercard designs without sacrificing the 3 A per-pin current capacity.
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