SFM-138-02-FM-D-A SAMTEC Connector (Other) In Stock
SFM-138-02-FM-D-A is a SAMTEC 76-position dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch in a surface mount configuration. Designed for fine-pitch, high-density mating interfaces, it supports board-to-board and module-to-board interconnects with excellent contact retention. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- SFM-138-02-FM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 76 positions in a dual-row 0.050" (1.27 mm) pitch layout delivering high-density signal connectivity in a compact SMT footprint
- High-reliability female socket contact design maintains low, stable contact resistance across hundreds of mate/demate cycles
- Surface mount termination facilitates automated PCB assembly with standard pick-and-place equipment and reflow soldering
Applications
SFM-138-02-FM-D-A is used in FPGA mezzanine cards, high-speed communication modules, and embedded computing platforms requiring 76 signal paths in a 0.050" pitch dual-row surface mount socket. It is well suited for test fixture sockets, plug-in daughter cards, and industrial module interfaces where space constraints require fine-pitch connectors with high contact reliability over extended service life.
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
For a compact FPGA mezzanine interface, how much PCB space does SFM-138-02-FM-D-A's dual-row 0.050" layout occupy?
The SFM-138-02-FM-D-A has 76 positions in 2 rows of 38 contacts at 0.050" (1.27 mm) pitch. The connector body spans approximately 47.75 mm in the row direction, making the total mated footprint significantly smaller than a 0.100" pitch equivalent with the same pin count. This compact size allows FPGA mezzanine PCBs to route 76 signals within a narrow connector zone.
How does SFM-138-02-FM-D-A compare to SFM-119-L2-H-D-A when scaling a module interface from 38 to 76 signals?
SFM-138-02-FM-D-A provides 76 positions versus the 38 positions of SFM-119-L2-H-D-A, doubling the signal count while maintaining the same 0.050" (1.27 mm) dual-row pitch. Both connectors share the same surface mount termination and high-reliability contact design, so upgrading from the 38-position to the 76-position variant requires only a footprint change in PCB layout without altering the mating connector family or solder process.
What operating temperature range must SFM-138-02-FM-D-A support for industrial test fixture applications?
SAMTEC SFM series socket strips are rated for operating temperatures from -55 °C to +125 °C, covering the full industrial temperature range. This allows SFM-138-02-FM-D-A to be used in burn-in sockets and ATE fixtures exposed to thermal cycling as well as in field-deployed industrial modules where ambient temperature can exceed 85 °C. Contact current rating per pin is typically 1 A at the 0.050" pitch.
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