SFM-139-02-S-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-139-02-S-D-A-K-TR is a 78-contact dual-row SMT socket strip with .050 inch pitch and gold contacts rated 1 A and 150 V. Designed for high-reliability board-to-board signal interconnects. Available in tape-and-reel from authorized global distributors.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- SFM-139-02-S-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 78-contact (39 per row) dual-row SMT socket strip at .050 inch pitch for maximum board density
- Gold-plated contacts for superior conductivity and long-term corrosion resistance in demanding environments
- Rated 1 A per contact and 150 V for reliable signal interconnect across -55°C to +125°C
- Tape-and-reel packaging with gull-wing termination for automated SMT assembly
Applications
SFM-139-02-S-D-A-K-TR provides reliable high-density socket connectivity in test and measurement instruments, telecom switching equipment, and industrial computing modules. Its 78-contact dual-row layout at .050 inch pitch enables compact board-to-board mating in space-constrained PCB assemblies. Gold-plated contacts and a -55°C to +125°C operating range suit this connector for ruggedized aerospace and military electronics.
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 are the electrical ratings per contact for SFM-139-02-S-D-A-K-TR?
Each contact in the SFM-139-02-S-D-A-K-TR is rated at 1 A current and 150 V dielectric withstanding voltage. The 78-contact gold-plated design delivers reliable signal transmission across the full operating range of -55°C to +125°C, making it suitable for high-density interconnects in industrial and defense equipment.
Which board-to-board assemblies benefit from the 78-contact dual-row layout of SFM-139-02-S-D-A-K-TR?
SFM-139-02-S-D-A-K-TR suits high pin-count board-to-board assemblies in test equipment, computing modules, and communications systems where a .050 inch pitch socket handles 78 signals in a compact footprint. Its 1 A per pin rating and gull-wing SMT termination support dense PCB layouts requiring reliable multi-channel signal routing.
When is SFM-139-02-S-D-A-K-TR a better choice than a .100 inch pitch dual-row socket strip?
SFM-139-02-S-D-A-K-TR at .050 inch pitch packs 78 contacts into roughly half the board length of a .100 inch pitch connector with the same contact count, reducing PCB real estate by approximately 50%. The 1 A per contact rating matches most .100 inch alternatives, while gold contacts improve long-term reliability across -55°C to +125°C environments.
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