TST-102-05-H-D SAMTEC Connector (Other) In Stock
The SAMTEC TST-102-05-H-D is a 4-position dual-row shrouded PCB header with 0.100 inch (2.54 mm) pitch, designed for reliable board-to-wire and board-to-board signal connections. Its shroud provides polarisation and protects contacts from misalignment, making it ideal for industrial, embedded, and test equipment applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- TST-102-05-H-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-102-05-H-D?
- 4-position dual-row configuration on 0.100 inch (2.54 mm) pitch for standard cable compatibility
- Full shroud body providing contact polarisation and protection against misalignment during mating
- PCB through-hole mounting with tail length suited for wave or hand soldering assembly
- High-reliability gold-plated contacts rated for low milliohm contact resistance in signal applications
- Industry-standard 0.100 inch pitch accepting IDC ribbon cables and discrete crimp housings
What is TST-102-05-H-D used for?
The TST-102-05-H-D is a staple connector in embedded system development, industrial sensor interfaces, and test fixture wiring where 0.100 inch pitch ribbon or discrete-wire harnesses carry 4-pin signals or low-power rails up to 1 A per contact. Its shrouded body is especially useful in production environments where repeated plug-and-unplug cycles demand polarised, fool-proof mating. It also appears in programmers, JTAG headers, and debug harnesses on microcontroller evaluation boards requiring reliable 2.54 mm pitch connectivity.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-102-05-H-D datasheet?
TST-102-05-H-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-102-05-H-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and row count does the TST-102-05-H-D use, and which cable assemblies are directly compatible?
The TST-102-05-H-D uses 0.100 inch (2.54 mm) pitch in a dual-row 4-pin (2×2) layout. This pitch matches standard IDC ribbon-cable connectors, Dupont-style crimp housings, and most 0.1-inch female discrete-wire assemblies, making it compatible with a wide range of off-the-shelf cable accessories used in embedded systems and lab instrumentation.
How does the shrouded housing of TST-102-05-H-D prevent mating errors in production assembly?
The full shroud on the TST-102-05-H-D physically limits insertion to the correct orientation by guiding the mating plug and blocking a 180° reversed connection. In automated test fixture and production programming setups where operators repeatedly plug and unplug a 4-pin harness, this polarisation feature reduces rework caused by reversed connectors and protects the gold-plated contacts from bent-pin damage.
What current rating per contact does the TST-102-05-H-D support, and can it carry 3.3 V or 5 V power alongside signal lines?
SAMTEC TST-series headers are rated for approximately 1 A per contact on 0.100 inch pitch, which comfortably handles 3.3 V or 5 V power lines sharing the 4-pin connector with logic-level signals. Allocating 2 contacts to a 5 V rail gives a combined 2 A capability, sufficient for powering small microcontrollers or sensor modules without a separate power connector.
When is TST-102-05-H-D a better choice than a 4-pin JST-PH connector for an embedded debug interface?
The TST-102-05-H-D on 2.54 mm pitch accepts IDC and standard Dupont cables already in every lab tool kit, eliminating the need for custom JST-PH crimp assemblies. For a JTAG or SWD debug port where engineers connect off-the-shelf 4-pin ribbon cables rather than purpose-built harnesses, the SAMTEC shrouded header provides polarised, tool-less mating with lower cable cost than 2 mm JST-PH assemblies.
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