SFM-138-02-FM-D-A-K SAMTEC Connector (Other) In Stock
The SFM-138-02-FM-D-A-K is a high-reliability, dual-row surface-mount socket strip featuring 76 positions at a 0.050" (1.27 mm) pitch. It delivers dense, reliable board-to-board connectivity for space-constrained electronic assemblies. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- SFM-138-02-FM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 76-position dual-row layout at 0.050" (1.27 mm) pitch delivers high signal density for parallel bus and mixed I/O interfaces
- High-reliability SMT termination survives thermal cycling from -55°C to +125°C and mechanical vibration without contact failure
- Low-profile surface-mount footprint enables compact mezzanine and daughter-card stacking configurations
- Part of the Samtec SFM series, ensuring precise mating compatibility with matching headers for a complete 76-pin interconnect solution
Applications
The SFM-138-02-FM-D-A-K is used in high-density mezzanine and board-to-board interconnect designs such as FPGA evaluation modules, networking line cards, and embedded computing daughterboards requiring up to 76 signal connections. Its 0.050-inch pitch dual-row configuration supports differential pairs, power rails, and high-speed single-ended signals in a compact SMT package. The connector is reflow-compatible, simplifying integration into automated PCB assembly lines.
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 signal positions does SFM-138-02-FM-D-A-K offer, and what is the contact pitch?
The SFM-138-02-FM-D-A-K provides 76 positions arranged in 2 rows of 38 contacts each, with a 0.050-inch (1.27 mm) pitch. This configuration supports dense routing of parallel data buses, differential pairs such as LVDS or PCIe, and combined signal-plus-power interfaces within a narrow SMT footprint of approximately 48 mm in length.
In which temperature range can the SFM-138-02-FM-D-A-K reliably operate for industrial or harsh-environment applications?
The SFM-138-02-FM-D-A-K is rated for operation from -55°C to +125°C, covering both industrial (-40°C to +85°C) and extended temperature ranges. This thermal stability makes it suitable for industrial automation controllers, test equipment exposed to wide ambient swings, and telecommunications hardware installed in outdoor or unconditioned enclosures.
How does SFM-138-02-FM-D-A-K compare to a 76-pin through-hole connector in terms of PCB assembly?
Unlike through-hole connectors that require drilling 76 holes per connector and wave or selective soldering, the SFM-138-02-FM-D-A-K uses SMT pads that are populated and reflowed in the same process step as other surface-mount devices. This eliminates a separate assembly stage, reduces cycle time, and results in a lower board thickness since no component protrudes through the PCB.
What mating Samtec header completes the 76-position connector pair for a board-to-board stack?
The SFM-138-02-FM-D-A-K mates with the corresponding Samtec TSM or SFM series 76-position header sharing the 0.050-inch pitch and dual-row layout. The matched pair provides a contact resistance typically below 20 milliohms and a mechanical mating force suitable for repeated insertions exceeding 100 cycles without significant wear.
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