SFM-119-02-STL-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-119-02-STL-D-A-K-TR is a 38-position, dual-row high-reliability socket strip with 0.050" (1.27 mm) pitch for surface mount assembly. It uses an STL stand-off tail for improved flux-cleaning clearance, with contacts rated at 1.0 A per pin up to 125°C. Available in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 38
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 38-position dual-row layout at 0.050" (1.27 mm) pitch achieves high signal density in a compact SMT footprint for board-to-board interconnects
- STL stand-off tail maintains a 0.15 mm clearance beneath the body to enable post-reflow flux cleaning compliant with IPC cleanliness requirements
- High-reliability stamped gold-plated contacts rated 1.0 A per contact at 125°C ensure consistent low-resistance mating throughout the connector's service life
Applications
The SFM-119-02-STL-D-A-K-TR is designed for 38-signal mezzanine card, daughter-card, and module-to-baseboard interconnects in industrial computing, communications, and instrumentation systems requiring IPC Class 3 assembly cleanliness. The STL stand-off ensures that flux residue beneath the connector body can be fully removed by aqueous washing after reflow soldering, preventing long-term ionic contamination. Tape-and-reel packaging enables automated SMT placement in high-volume production environments with standard pick-and-place equipment.
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 STL stand-off tail on the SFM-119-02-STL-D-A-K-TR support IPC Class 3 cleanliness requirements?
The STL stand-off tail elevates the connector body approximately 0.15 mm above the PCB surface, creating a gap for aqueous wash fluid to penetrate and flush out flux residue after reflow soldering. IPC-A-610 Class 3 requires ionic contamination below 1.56 µg NaCl equivalent per cm², and trapped flux under a 38-position footprint can easily exceed this threshold without the stand-off clearance.
For a 38-channel sensor interface PCB, what are the electrical ratings of each contact in the SFM-119-02-STL-D-A-K-TR?
Each of the 38 contacts is rated for 1.0 A continuous current at an operating temperature up to 125°C. The 0.050" (1.27 mm) pitch dual-row layout provides 19 contacts per row, allowing designers to dedicate individual contacts to analog signals at currents well below 1.0 A, or to configure pairs in parallel to handle up to 2.0 A for low-voltage power rails within the same connector.
When is the SFM-119-02-STL-D-A-K-TR preferred over a non-stand-off SMT connector of the same pin count?
The SFM-119-02-STL-D-A-K-TR is preferred in applications requiring IPC Class 2 or Class 3 post-solder cleaning, such as aerospace, medical, and high-reliability industrial assemblies. Non-stand-off variants trap flux directly under the 38-position footprint where wash fluid cannot reach. The STL variant is also preferred when conformal coating must be applied uniformly beneath the connector, requiring a minimum 0.1 mm gap.
Does the tape-and-reel (TR) packaging format of the SFM-119-02-STL-D-A-K-TR reduce assembly cost for volume production?
Yes, the TR suffix specifies EIA-481-compliant tape-and-reel packaging that feeds directly into standard SMT pick-and-place feeders. For production runs of 1000 units or more, tape-and-reel reduces per-part handling time to under 0.5 seconds and eliminates manual tray loading, cutting assembly labor cost per 38-position connector by 30–50% compared to tray-packed alternatives at typical SMT line rates.
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