TST-115-03-T-D SAMTEC Connector (Other) In Stock
Samtec TST-115-03-T-D is a 30-position shrouded dual-row PCB header with 0.100" (2.54 mm) pitch and matte tin over nickel contacts. It features phosphor bronze male contacts and through-hole termination with a polarizing shroud for reliable board-to-cable or board-to-board connections.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 30
- Lifecycle
- ACTIVE
- Datasheet
- TST-115-03-T-D Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 30-position dual-row male header at 0.100" (2.54 mm) pitch with protective shroud for polarized, keyed mating
- Phosphor bronze contacts with matte tin over nickel finish providing robust low-resistance termination across industrial temperature ranges
- Shrouded housing prevents incorrect connector insertion orientation in board-to-cable and board-to-board assembly
- Through-hole termination with 1.8-inch body length for high-contact-count, mechanically secure PCB mounting
Applications
The TST-115-03-T-D is used for board-to-cable and board-to-board interconnects in industrial control systems, automation equipment, and embedded computing platforms requiring a reliable 30-position, 0.100" pitch shrouded header. Its polarizing shroud and phosphor bronze contacts make it a preferred choice for ribbon cable connectors, internal system wiring harnesses, and I/O expansion modules where keyed mating prevents field installation errors. The connector is also commonly specified in test fixture designs and development boards where high pin-count, durable through-hole headers simplify prototype wiring.
Specifications
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 1.8inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | MATTE TIN OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | GLASS FILLED POLYESTER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.1inch |
| Mating Contact Row Spacing | 0.1inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.54mm |
| Polarization Key | POLARIZATION NOTCH |
| Terminal Length | 0.565inch |
| Terminal Pitch | 2.54mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the TST-115-03-T-D shrouded header provide?
The TST-115-03-T-D is a 30-position (15 pins per row, dual-row) shrouded male PCB header with a 0.100" (2.54 mm) pitch. The 2.54 mm standard pitch ensures compatibility with a wide range of mating receptacles, ribbon cable connectors, and IDC sockets commonly used in industrial and embedded system wiring.
Why does the shroud on the TST-115-03-T-D matter for system assembly and field maintenance?
The polarizing shroud on the TST-115-03-T-D physically prevents mating connectors from being inserted upside down or offset by 1 row, eliminating reverse-polarity connection errors that could damage circuits. For industrial control panels and embedded systems serviced in the field, this keying feature reduces the risk of technician wiring errors on 30-pin high-density headers during maintenance or replacement.
What contact material and finish does the TST-115-03-T-D use, and how does this affect long-term connector reliability?
The TST-115-03-T-D uses phosphor bronze contacts with a matte tin over nickel finish on mating surfaces. Phosphor bronze provides excellent spring retention for consistent contact force over thousands of mating cycles, while the nickel barrier prevents tin migration to the base material. This combination suits applications requiring reliable low-resistance connections across the industrial temperature range in environments with vibration or repeated cable disconnection.
When is the TST-115-03-T-D preferred over a 0.050" pitch SMT connector for a 30-position interface?
The TST-115-03-T-D at 0.100" (2.54 mm) pitch is preferred over 0.050" SMT alternatives when the application involves frequent mating cycles, field-replaceable cable harnesses, or situations where manual handling without precision tooling is required. The 2.54 mm pitch allows hand-termination with IDC ribbon cable tools, and through-hole mounting provides superior pull-out force compared to SMT connectors in harsh mechanical or vibration environments.
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