TST-104-03-T-D SAMTEC Connector (Other) In Stock
SAMTEC TST-104-03-T-D is an 8-position, 2.54 mm pitch dual-row shrouded PCB header with male square-pin contacts and tin (200 microinch) over nickel mating finish. Features a 0.70 x 0.365 x 0.365 inch shrouded body for keyed, polarized connections in board-to-wire and board-to-board assemblies. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TST-104-03-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
- 8-position dual-row shrouded housing on 2.54 mm (0.100 inch) pitch provides polarization and contact protection to prevent mis-mating
- Tin (200 microinch) over nickel contact finish delivers robust corrosion resistance and reliable electrical contact for industrial PCB header applications
- Male square-pin contact style compatible with standard 2.54 mm female housing assemblies for versatile wire-to-board and board-to-board connectivity
Applications
The TST-104-03-T-D is used in industrial control panels, power distribution boards, and embedded systems where a polarized 8-pin shrouded header prevents incorrect cable mating and protects contacts from mechanical damage. Its 2.54 mm pitch and dual-row layout support a wide range of standard crimp-style female housings commonly used in industrial wiring harnesses and development boards. The through-hole termination provides strong PCB anchoring suitable for connectors subject to repeated cable insertion and removal cycles.
Specifications
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 0.7inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | TIN (200) OVER NICKEL |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| 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 | 8 |
| 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
Why does the TST-104-03-T-D use a shrouded housing and how does it prevent mis-mating?
The TST-104-03-T-D features a shrouded housing measuring 0.70 x 0.365 x 0.365 inches that surrounds and protects the 8 male square pins, providing a physical key that guides the mating female connector into the correct orientation. This prevents reversed or off-center mating that could damage the 8 pins or cause wiring errors in industrial control, power distribution, or automation systems where incorrect connections could cause equipment damage or safety hazards.
What contact plating does the TST-104-03-T-D use and how does it affect connector longevity?
The TST-104-03-T-D uses tin (200 microinch) over nickel mating contact finish, which provides corrosion resistance and a low-resistance electrical interface suitable for signal and low-power applications. The 200 microinch tin thickness is thicker than standard tin plating (typically 100 microinch), extending wear life through more mating cycles and maintaining reliable contact resistance across all 8 positions in industrial environments with humidity or mild chemical exposure.
Which cable assembly connectors mate with the TST-104-03-T-D's 2.54 mm pitch dual-row header?
The TST-104-03-T-D mates with standard 2-row, 2.54 mm pitch female crimp housing assemblies such as SAMTEC's IDSS or FCS series, as well as third-party IDC and discrete wire female housings for the 0.100 inch pitch. These mating assemblies accommodate wire gauges from 22 AWG to 28 AWG, supporting signal current levels up to approximately 1 A per contact, suitable for logic-level and low-power interfaces.
For a board design needing fewer than 8 pins, what similar SAMTEC TST series alternatives are available at 2.54 mm pitch?
SAMTEC's TST series offers shrouded dual-row headers in multiple position counts including 2, 3, 4, 5, 6, and 7 positions, all sharing the same 2.54 mm (0.100 inch) pitch and compatible tin-over-nickel contact finish as the TST-104-03-T-D. For example, TST-103-03-T-D provides 6 positions and TST-102-03-T-D provides 4 positions, maintaining the same shrouded housing style for polarized, protected connections in compact board designs.
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