TST-104-05-G-D SAMTEC Connector (Other) In Stock
SAMTEC TST-104-05-G-D is an 8-position dual-row shrouded PCB header connector with 0.100" (2.54 mm) pitch and a gold-plated contact finish for superior electrical performance. Designed in a vertical through-hole configuration, it provides keyed and protected interconnection for standard ribbon cable and IDC mating connectors. Suitable for industrial control, embedded computing, and test equipment requiring reliable multi-signal 8-pin board connections.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TST-104-05-G-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-104-05-G-D?
- 8-position dual-row shrouded design at 0.100" (2.54 mm) pitch with mechanical keying to prevent mis-mating in production and field environments
- Gold-plated (G suffix) contact finish delivers low and stable contact resistance for high-cycle-count or precision signal applications
- Vertical through-hole mounting allows secure PCB attachment and robust strain relief for ribbon cable connections
- Shrouded housing protects 8 male pins from mechanical damage and ESD during assembly, transport, and connector mating
- Compatible with standard 8-position 2.54 mm pitch IDC ribbon cable connectors for simple cable assembly integration
What is TST-104-05-G-D used for?
The SAMTEC TST-104-05-G-D is used in embedded controller boards, JTAG and programming headers, and industrial sensor modules where 8-position keyed interconnect with gold-plated contacts is required. Its 2.54 mm pitch and dual-row shrouded configuration make it directly compatible with standard 8-pin IDC ribbon cables and box-header mating connectors used throughout industrial automation and instrumentation. The gold contact finish is particularly valued in test-fixture and programming-jig applications where frequent mating cycles demand durable, low-resistance contact surfaces over thousands of insertions.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-104-05-G-D datasheet?
TST-104-05-G-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-104-05-G-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the G suffix mean for the TST-104-05-G-D and how does it affect connector performance?
The G suffix in TST-104-05-G-D designates a gold contact finish on the mating surfaces, providing significantly lower and more stable contact resistance than tin-finished variants over thousands of mating cycles. Gold plating resists oxidation and sulfidation in humid or mildly corrosive environments, making the TST-104-05-G-D suitable for test fixtures, programming jigs, and precision signal headers that undergo more than 100 insertion and removal cycles. The 8-position gold-contact header is also preferred in RF-adjacent or low-level signal applications where consistent sub-milliohm contact resistance is critical.
Which embedded or industrial designs commonly use the 8-position dual-row SAMTEC TST-104-05-G-D header?
JTAG debug connectors, SPI bus expansion headers, and industrial I/O breakout boards frequently use the TST-104-05-G-D because 8 positions at 0.100" pitch cover common 4-wire, 6-wire, and 8-wire protocols while the shrouded body prevents accidental reverse connection. Embedded Linux boards, PIC and ARM microcontroller programming adapters, and sensor-hub PCBs also use this header to provide gold-contact reliability for periodic firmware updates or production test access without degrading signal integrity over repeated connections.
How does the TST-104-05-G-D compare to a non-shrouded 8-pin header at the same pitch for production use?
The TST-104-05-G-D adds a shroud around the 8 male pins, providing mechanical keying that prevents reverse insertion and physically protects the pins during cable attachment on a production line or in the field. A non-shrouded 8-pin header at 0.100" pitch lacks this keying feature, increasing the risk of bent pins or reversed cable connections that could damage attached circuitry. The shrouded TST-104-05-G-D is therefore preferred for any assembly where the mating connector will be attached by hand without a fixture to guide alignment, especially in low-light or high-speed assembly environments.
What ribbon cable or mating connector types are compatible with the TST-104-05-G-D?
The TST-104-05-G-D accepts standard 8-position 2.54 mm pitch IDC box-header mating connectors such as those commonly used with flat ribbon cables terminated by IDC mass-displacement tooling. These cables and connectors are widely available in 8-conductor versions for SPI, JTAG, UART, and GPIO harnesses. The shrouded body also accepts polarized box connectors that carry a polarization key tab, which fits into the slot in the shroud to guarantee correct orientation every time across all 8 positions.
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