TST-102-05-L-D SAMTEC Connector (Other) In Stock
TST-102-05-L-D is a 4-position dual-row shrouded PCB header from SAMTEC with 0.100 inch (2.54 mm) pitch and through-hole mounting. Features polarizing shroud for keyed mating and reliable board-to-board connectivity. Ideal for backplane, industrial control, and embedded system interfaces. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- TST-102-05-L-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-L-D?
- Dual-row 4-position layout at 0.100 inch (2.54 mm) pitch for compact high-density connectivity
- Polarizing shroud prevents mis-mating, ensuring reliable 2 A per pin signal integrity in vibration-prone environments
- Through-hole mounting provides robust mechanical retention and solder joint reliability in harsh applications
- Compatible with standard 0.100 inch mating connectors across a broad -55°C to +125°C temperature range
What is TST-102-05-L-D used for?
TST-102-05-L-D is used in industrial control panels, embedded system motherboards, and test-and-measurement equipment where reliable 0.100 inch pitch board-to-board connections are required. The shrouded 4-position dual-row header enables keyed, polarized mating between PCBs, reducing assembly errors in high-volume manufacturing. It is also well suited for backplane interconnect systems and robotics controllers that demand mechanically secure 2.54 mm pitch connections.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-102-05-L-D datasheet?
TST-102-05-L-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-102-05-L-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the pitch and row configuration of the TST-102-05-L-D connector, and how does it affect PCB layout?
The TST-102-05-L-D uses a 0.100 inch (2.54 mm) pitch dual-row configuration with 4 positions total (2 pins per row). On a PCB, this means a through-hole footprint of 2 rows spaced 0.100 inch apart, requiring a minimum pad-to-pad clearance of 0.100 inch. The shroud adds additional keepout area but ensures polarized mating, which simplifies assembly in systems using standard 2.54 mm pitch ribbon or discrete wire harnesses.
For a robotics controller that experiences vibration, how does the TST-102-05-L-D maintain connection integrity?
The TST-102-05-L-D's polarizing shroud mechanically locks the mating connector, preventing accidental disconnection during vibration up to typical industrial ratings. Its through-hole mounting pins provide a solder joint that withstands mechanical stress better than surface-mount alternatives. The dual-row 4-position arrangement distributes mating force across multiple contacts, and the 0.100 inch pitch allows each pin to carry up to 2 A of current, supporting motor encoder signal and low-power control lines simultaneously.
When is TST-102-05-L-D preferable to an unsealed open-frame header for backplane signal routing?
The TST-102-05-L-D is preferable when polarized keyed mating is required to avoid incorrect insertion during maintenance or field servicing. In backplane applications carrying multiple 5 V or 3.3 V signal buses across 4 positions, the shroud prevents reversed connector installation that could damage components. For unsealed open-frame headers, there is no physical polarization, increasing risk of mis-mating. The dual-row 0.100 inch pitch also provides 4 independent contact points, allowing signal and return lines to share the same 4-pin header without additional connectors.
What is the operating temperature range of the TST-102-05-L-D and which environments does this support?
SAMTEC TST-series connectors are typically rated for -55°C to +125°C operating temperatures, making the TST-102-05-L-D suitable for industrial, automotive auxiliary, and outdoor embedded systems. At -55°C, the shroud material retains its dimensional stability, ensuring the 0.100 inch pitch alignment is maintained for reliable mating. At +125°C, the through-hole solder joints and contact resistance remain stable, supporting continuous signal paths in motor drives, power supplies, and harsh-environment control boards.
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