SFM-139-02-FM-D-A SAMTEC Connector (Other) In Stock
SAMTEC SFM-139-02-FM-D-A is a 78-position dual-row SMT socket strip with 0.050" (1.27 mm) pitch. Features high-reliability surface-mount termination with female contacts rated for 3 A per pin and operating temperatures from -55°C to +125°C. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- SFM-139-02-FM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 78-position dual-row layout on 0.050" (1.27 mm) pitch for ultra-high-density board-to-board mating
- Surface-mount termination rated at 3 A per pin, supporting robust power and signal distribution
- High-reliability design rated for operating temperatures from -55°C to +125°C with gold-plated contacts
Applications
The SFM-139-02-FM-D-A is designed for high-density board-to-board interconnect in applications such as telecommunications equipment, data-center servers, and industrial control systems. Its 0.050" pitch allows engineers to route 78 signals in the space of a standard 2-row footprint, making it well suited for compact daughtercard and mezzanine card designs requiring reliable, repeatable SMT assembly.
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 contact pitch and current rating of the SFM-139-02-FM-D-A?
The SFM-139-02-FM-D-A uses a 0.050" (1.27 mm) pitch across 78 positions in a dual-row arrangement, with each contact rated at 3 A continuous current and gold plating for low contact resistance in demanding signal and power applications.
What operating temperature range does the SFM-139-02-FM-D-A support, and which environments is it suited for?
This connector is rated for -55°C to +125°C, making it suitable for harsh industrial, aerospace ground support, and high-reliability telecommunications environments where wide thermal cycling and long service life are required.
When is the SFM-139-02-FM-D-A a better choice than a through-hole socket strip for a mezzanine card design?
For mezzanine card designs requiring automated SMT assembly and a low-profile footprint, the SFM-139-02-FM-D-A's surface-mount termination eliminates hand-soldering steps, reduces board thickness by at least 2 mm compared with through-hole alternatives, and is compatible with standard 0.050" pitch SFM mating headers from SAMTEC.
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