TST-112-05-S-D SAMTEC Connector (Other) In Stock
Samtec TST-112-05-S-D is a 24-position dual-row shrouded PCB header with 0.100" (2.54 mm) pitch and through-hole solder termination. The polarizing shroud ensures correct cable assembly orientation and prevents mis-mating. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- TST-112-05-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-112-05-S-D?
- 24-position dual-row shrouded header at 0.100" (2.54 mm) pitch provides polarization and mis-mate protection for ribbon cable and discrete wire harness connections
- Through-hole solder termination delivers robust mechanical retention in applications subject to vibration and repeated cable connect-disconnect cycles
- Single-piece molded housing (S-D) integrates polarizing key for correct orientation, eliminating costly miswiring in production and field-service scenarios
What is TST-112-05-S-D used for?
The TST-112-05-S-D is widely used in industrial control panels, robotics harnesses, and embedded computing backplanes where reliable 0.100" pitch ribbon cable connections are required with foolproof polarity. The shrouded body protects the 24 contact pins from accidental shorting during board handling and cable routing. Its standard 2.54 mm pitch is compatible with the broad ecosystem of 0.100" pitch IDC ribbon cable assemblies used in instrumentation and automation systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-112-05-S-D datasheet?
TST-112-05-S-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-112-05-S-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What total contact count and row configuration does the TST-112-05-S-D provide at 0.100" pitch?
The TST-112-05-S-D is a dual-row, 12-position-per-row header, yielding 24 total contacts at the industry-standard 0.100" (2.54 mm) pitch. This layout is compatible with 24-conductor IDC ribbon cable assemblies and discrete wire harnesses commonly used in industrial control and embedded computing applications.
How does the shrouded housing on the TST-112-05-S-D reduce assembly errors compared to an unshrouded header?
The molded polarizing shroud on the TST-112-05-S-D physically blocks reversed or offset mating of IDC connectors, preventing costly miswiring in the field. Without a shroud, operators can seat a 24-pin cable assembly offset by 2 pins or in reversed polarity, which can damage circuits drawing currents above 1 A. The keyed shroud eliminates this risk entirely.
Which cable assembly types mate reliably with the TST-112-05-S-D header in industrial environments?
The TST-112-05-S-D is designed to mate with standard 24-conductor, 0.100" pitch IDC ribbon cable assemblies using housings such as the Samtec IDSD or compatible third-party IDC sockets. In industrial environments with vibration up to 10 G, the through-hole mounting pins provide mechanical stability that surface-mount alternatives cannot match.
Is the TST-112-05-S-D a cost-effective substitute for a 26-pin shrouded header when only 24 signals are needed?
Yes. When a design requires only 24 signals, specifying the TST-112-05-S-D avoids paying for the extra 2 contacts found in a 26-pin header. At 0.100" (2.54 mm) pitch the PCB footprint is also 0.2" shorter, which can be significant in dense backplane layouts where board real estate is priced at a premium.
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