SFM-138-02-H-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-138-02-H-D-A-K is a 76-position dual-row high-reliability socket strip with 0.050" pitch for surface mount board-to-board connections. It features 2 rows of 38 contacts with gold-plated terminations for long service life and high mating cycles. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- SFM-138-02-H-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 0.050" pitch SMT socket strip for ultra-high-density board-to-board signal routing
- High reliability gold-plated contacts rated for hundreds of mating cycles to withstand frequent module swapping
- Surface mount termination simplifies automated assembly and reduces solder joint count versus through-hole alternatives
Applications
The SFM-138-02-H-D-A-K is designed for high-density mezzanine and daughter card interconnects in telecommunications, embedded computing, and test equipment. Its 0.050" pitch dual-row socket provides 76 positions in a compact SMT footprint, supporting both high-speed digital signals and mixed-signal interfaces on densely packed PCBs. System integrators use it to build stackable module systems where daughter boards must be inserted and removed repeatedly during system integration and field maintenance.
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 does the 0.050" pitch of SFM-138-02-H-D-A-K compare to standard 0.100" pitch connectors for high-density designs?
At 0.050" (1.27 mm) pitch versus the standard 0.100" (2.54 mm) pitch, the SFM-138-02-H-D-A-K fits 76 positions into roughly half the board edge length that a 0.100" pitch equivalent would need. For example, a 76-position 0.050" dual-row connector strip spans approximately 48 mm, whereas an equivalent 0.100" version would span about 96 mm, which matters in constrained mezzanine card layouts.
What makes SFM-138-02-H-D-A-K suitable for frequently swapped module assemblies in test systems?
The SFM-138-02-H-D-A-K carries SAMTEC's high-reliability rating, which typically means gold-plated contacts engineered for 500 or more mating cycles without significant contact resistance increase. In automated test equipment where daughter cards under test are exchanged dozens of times per day, this ensures consistent 50 mΩ or lower contact resistance throughout the connector's rated service life.
Can the SFM-138-02-H-D-A-K be processed through a standard lead-free reflow oven, and at what peak temperature?
Yes, the SFM-138-02-H-D-A-K is designed for surface mount reflow assembly compatible with standard lead-free soldering profiles peaking at 260°C. Its SMT terminations align with J-STD-020 reflow guidelines, allowing it to be placed and soldered alongside other SMT components in a single-pass reflow oven without special thermal considerations beyond standard moisture sensitivity level handling.
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