SFM-138-02-L-D-A-P SAMTEC Connector (Other) In Stock
SAMTEC SFM-138-02-L-D-A-P is a 76-position, dual-row, surface-mount socket strip with 0.050-inch (1.27 mm) pitch, offering high-reliability interconnection for board-to-board and mezzanine designs in compact, high-density PCB applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- SFM-138-02-L-D-A-P Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 76 positions in a dual-row configuration for high-density board-to-board signal routing
- 0.050 inch (1.27 mm) pitch enables compact SMT footprint for space-constrained PCB designs
- High-reliability socket construction with secure contact retention for industrial applications
- Surface-mount termination compatible with standard reflow soldering profiles
- Dual-row layout balances signal density and mechanical stability for mezzanine interconnects
Applications
The SFM-138-02-L-D-A-P is used in high-density mezzanine and board-to-board interconnect applications such as FPGA expansion modules, test and measurement instruments, and embedded computing platforms. Its 76-position, dual-row, 0.050-inch pitch design maximizes signal count in a minimal PCB area, making it a preferred choice for data acquisition cards and industrial I/O boards. The surface-mount format integrates seamlessly into automated SMT assembly lines for high-volume production.
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 SFM-138-02-L-D-A-P's 76-position dual-row layout compare to single-row connectors for high-density designs?
The SFM-138-02-L-D-A-P provides 76 contact positions in a dual-row arrangement at 0.050-inch (1.27 mm) pitch, delivering twice the pin density per linear board length compared to a single-row socket of the same pitch. This makes it advantageous for FPGA I/O expansion boards and data acquisition modules where PCB real estate is limited.
Which SAMTEC header series mates with SFM-138-02-L-D-A-P to create a complete board stacking assembly?
The SFM-138-02-L-D-A-P is designed to mate with SAMTEC TSM and TFC series headers that share the 0.050-inch (1.27 mm) pitch standard. These header families are available in various stack heights, allowing system designers to set board separation from a few millimeters up to 15 mm or more to accommodate components mounted between the two boards.
What soldering process is recommended for assembling SFM-138-02-L-D-A-P on a PCB, and are there coplanarity requirements?
The SFM-138-02-L-D-A-P is designed for surface-mount reflow soldering. Coplanarity of the SMT leads must be within 0.1 mm to ensure all 76 positions make solid solder joints simultaneously. A standard lead-free reflow profile with a peak temperature of approximately 260°C for under 30 seconds is appropriate for this connector family.
In long-lifecycle industrial programs, how should procurement teams manage sourcing risk for the SFM-138-02-L-D-A-P?
For long-lifecycle industrial programs, procurement teams should confirm the active status of the SFM-138-02-L-D-A-P at SAMTEC and establish blanket purchase orders at authorized distributors. Fine-pitch, high-position-count connectors with 76 positions at 0.050 inch pitch can carry lead times of 8 to 16 weeks during supply constraints, so safety stock equivalent to 3 to 6 months of consumption is a common planning target.
Related Guides
How to Choose a Digital Potentiometer: AD5204, AD5206, and AD8403 Selection Guide
Compare the AD5204, AD5206, and AD8403 multi-channel SPI digipots by channel count, resistance value, and package to choose the right Analog Devices digital potentiometer for your design.
Jun 21, 2026
AD7745 / AD7746 / AD7747 Capacitance-to-Digital Converter Design Guide
Complete application note for the AD774x CDC family: circuit design, shielding, conversion rate selection, and sourcing guidance for the AD7745, AD7746, and AD7747.
Jun 21, 2026
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”