TST-104-03-L-D SAMTEC Connector (Other) In Stock
TST-104-03-L-D is a SAMTEC 8-position dual-row shrouded PCB header at 0.100" (2.54 mm) pitch with gold-over-nickel mating contacts. Features low-profile shrouded housing for keyed, polarized mating with 0.100" pitch sockets. Available in stock worldwide.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TST-104-03-L-D Datasheet PDF
- Category
- Connector
- Price
- From $1.0800(MOQ 2500)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-104-03-L-D?
- 8-position dual-row shrouded header at 2.54 mm (0.100 inch) pitch with polarized keying to prevent reversed insertion
- 10 µin gold over nickel mating contact finish for reliable, low-resistance connections across repeated mating cycles
- Square-pin contact style compatible with machine-pin and stamped-pin socket families in the SAMTEC TST ecosystem
- Through-hole termination with tin over nickel solder tails for robust wave-solder or hand-solder PCB attachment
- Compact body footprint of 0.7 inch × 0.365 inch suitable for space-constrained board-to-wire and board-to-board interconnect areas
What is TST-104-03-L-D used for?
The TST-104-03-L-D is used in board-to-wire and board-to-board interconnect applications in industrial control panels, test and measurement equipment, and embedded development platforms where a reliable 8-circuit 2.54 mm pitch shrouded header is needed. The shrouded, keyed housing prevents misinsertion during field wiring, making it a practical choice for power supply interface connectors and ribbon-cable to PCB transitions in equipment that undergoes periodic maintenance. Engineers also select this series for prototype and low-volume production runs where hand solderability and wide socket compatibility reduce tooling and assembly cost.
What are the specifications of TST-104-03-L-D?
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 0.7inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (10) 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 |
| Plating Thickness | 10u inch |
| 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 |
Where can I find the TST-104-03-L-D datasheet?
TST-104-03-L-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-104-03-L-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions are in the TST-104-03-L-D and what is the contact pitch?
The TST-104-03-L-D has 8 positions arranged in a dual-row configuration at 2.54 mm (0.100 inch) pitch, giving 4 contacts per row. This industry-standard pitch is widely compatible with ribbon cables, IDC connectors, and DIP-style socket strips, simplifying sourcing of mating components across multiple vendors.
What contact finish does the TST-104-03-L-D use and what contact resistance should designers expect?
The mating contacts are finished with 10 µin gold over a nickel barrier layer, providing contact resistance typically below 30 mΩ at the initial mating. This gold finish resists oxidation and maintains stable resistance through hundreds of mating cycles, important for test and measurement applications where connector wear from frequent disconnects could degrade signal integrity.
Does the TST-104-03-L-D shroud help prevent misinsertion in field-wired industrial enclosures?
Yes. The plastic shroud surrounding the 8 contact pins mechanically keys the connector so that a mating socket can only be inserted in one orientation, eliminating the risk of reversed polarity connections during field wiring or maintenance. In 24 V DC industrial control wiring, reversed connection without polarization can damage logic-level circuits, so the shroud provides a low-cost mitigation without requiring additional locking hardware.
What current and voltage ratings apply to the TST-104-03-L-D for mixed power and signal use?
SAMTEC TST-series headers at 2.54 mm pitch are rated for approximately 3 A per pin at an insulation voltage of 250 V AC. With 8 pins available, designers can allocate 2 pins for a 3.3 V or 5 V power rail at up to 6 A combined, while dedicating the remaining 6 pins to digital I/O or UART signals, all within a single 8-position connector footprint.
Which socket connector families mate with the TST-104-03-L-D for a complete interconnect solution?
The TST-104-03-L-D mates with SAMTEC's SSW, SNT, and TST socket-strip families at 2.54 mm pitch, as well as standard IDC ribbon cable sockets from multiple manufacturers. The dual-row 4×2 pattern is also physically compatible with 8-pin DIP sockets and machine-pin socket strips, giving engineers broad second-source flexibility when building prototype rigs or production harnesses.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500+ | $1.3500 | $3375.00 |
| 5000+ | $1.1100 | $5550.00 |
| 7500+ | $1.0800 | $8100.00 |
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