TST-111-04-S-D SAMTEC Connector (Other) In Stock
SAMTEC TST-111-04-S-D is a 22-position dual-row shrouded PCB header with 0.100 inch (2.54 mm) pitch and short tail termination, designed for reliable through-hole board connections. Available globally with competitive pricing and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 22
- Lifecycle
- ACTIVE
- Datasheet
- TST-111-04-S-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-111-04-S-D?
- 22-position dual-row shrouded header with 0.100 inch (2.54 mm) standard pitch for broad PCB and cable compatibility
- Shrouded housing provides mechanical polarization and contact protection, preventing mis-mating during assembly and cable connection
- Short tail (S) termination option suits thin PCB stackups and constrained board-to-board clearance applications
What is TST-111-04-S-D used for?
The TST-111-04-S-D is a shrouded dual-row header suited for industrial control boards, embedded computing modules, and development platforms where polarized, secure connector mating at standard 2.54 mm pitch is required. The short-tail option makes it particularly valuable in slim PCB stackup designs with limited through-hole clearance. This connector is routinely used for GPIO expansion, bus interconnects, and flat ribbon cable interfaces in both commercial and ruggedized electronics.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-111-04-S-D datasheet?
TST-111-04-S-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-111-04-S-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the short tail (S) termination of the TST-111-04-S-D differ from standard tail lengths in PCB assembly?
The short tail termination on the TST-111-04-S-D reduces the pin length protruding below the PCB, which is beneficial in stacked board assemblies where inter-board clearance is limited. Standard tail headers protrude several millimeters more, potentially interfering with adjacent components or the next PCB layer in a 2.54 mm pitch dual-row 22-position configuration.
For which embedded or industrial control applications is the TST-111-04-S-D most suitable?
The TST-111-04-S-D is well-suited for single-board computers, PLC backplanes, and industrial I/O expansion modules where a 22-pin dual-row shrouded header at 0.100 inch (2.54 mm) pitch provides GPIO, power, or bus signal routing. The shrouded design prevents accidental mis-mating in environments with vibration or frequent cable reconnection cycles.
Can the TST-111-04-S-D be used as an alternative to non-shrouded dual-row headers, and what are the trade-offs?
Yes, the TST-111-04-S-D can replace non-shrouded 22-position dual-row headers at 2.54 mm pitch, but the shroud adds slightly more body volume compared to unshrouded versions. The key benefit is polarization, which eliminates the possibility of 180-degree mis-orientation — a common assembly error on unshrouded headers. For production environments handling many cable assemblies, this reduces rework costs and field failures significantly.
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