SMH-128-02-L-S-TR SAMTEC Connector (Other) In Stock
The SMH-128-02-L-S-TR is a SAMTEC 0.100-inch pitch horizontal surface-mount single-row socket strip with 28 positions and a long-body low-profile SMT footprint. It provides reliable wire-to-board or board-to-board signal connections and ships in tape-and-reel format for automated SMT assembly worldwide.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- SMH-128-02-L-S-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SMH-128-02-L-S-TR?
- 0.100-inch (2.54 mm) pitch single-row horizontal SMT socket strip with 28 positions for standard module and header compatibility
- Long-body (-L) design provides additional mechanical retention and PCB footprint anchoring compared to standard-body SMH variants
- Tape-and-reel (-TR) packaging supports automated EIA-481 SMT pick-and-place assembly in high-volume production runs
- Horizontal orientation enables side-edge mating for compact PCB stack assemblies requiring less than 8 mm vertical clearance
What is SMH-128-02-L-S-TR used for?
The SMH-128-02-L-S-TR is used in prototyping modules, industrial daughter cards, and backplane expansion systems where 28-position 0.100-inch socket strips must be horizontally surface-mounted for edge mating. It suits embedded computing platforms, test and measurement instruments, and consumer electronic development boards that interface standard 0.100-inch pitch male headers. The tape-and-reel packaging makes it ideal for contract manufacturers producing large volumes of PCB assemblies with automated SMT lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SMH-128-02-L-S-TR datasheet?
SMH-128-02-L-S-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SMH-128-02-L-S-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the position count and pitch of the SMH-128-02-L-S-TR connector?
The SMH-128-02-L-S-TR is a 28-position single-row SMT socket strip at 0.100-inch (2.54 mm) pitch. This results in a total mated contact count of 28 signal lines, making it well suited for 28-bit parallel buses, combination power and signal headers, or GPIO expansion interfaces on microcontroller and FPGA development boards.
How does the long-body (-L) option of the SMH-128-02-L-S-TR improve PCB assembly reliability?
The long-body option extends the connector's housing length beyond the standard SMH form factor, increasing the solder pad area and mechanical engagement surface. This additional length improves solder joint strength under lateral peel forces and provides a larger footprint anchor, reducing the risk of connector lift-off during hand soldering or thermal stress in reflow cycles above 260°C.
Which SAMTEC header series is designed to mate with the SMH-128-02-L-S-TR?
The SMH-128-02-L-S-TR socket strip mates with SAMTEC TSW, TLW, and compatible 0.100-inch (2.54 mm) pitch male pin header series in single-row configurations. Standard mating pin headers are available in lengths from 4 mm to 12 mm above the PCB, with contact plating options including tin (Sn) and gold (Au) finishes rated for 1 A to 3 A per contact depending on the selected mating header.
When should a designer choose SMH-128-02-L-S-TR over a through-hole socket strip for a 28-position interface?
The SMH-128-02-L-S-TR is preferred over through-hole alternatives when the PCB is a single-sided SMT assembly with no through-hole tooling available, or when board thickness is less than 1.0 mm and through-hole drill registration is impractical. The SMT horizontal body also reduces component height above the PCB to approximately 4 mm versus 8 mm to 12 mm for through-hole right-angle sockets, a critical advantage in slim enclosures under 10 mm in total height.
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