TST-105-04-H-D SAMTEC Connector (Other) In Stock
SAMTEC TST-105-04-H-D is a 10-position dual-row shrouded PCB header with 0.100 inch (2.54 mm) pitch and high-profile termination, featuring male square pins for reliable board-to-cable connectivity. Its polarized shroud and dual-row layout enable dense signal routing in embedded and prototyping applications. Ideal for JTAG debug ports, I/O expansion connectors, and sensor module interfaces requiring a 10-pin 2.54 mm pitch header.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- TST-105-04-H-D Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TST-105-04-H-D?
- 10-position dual-row layout on 0.100 inch (2.54 mm) pitch for medium-density signal and power interconnection
- High-profile pin termination enabling through-hole mounting with extended stand-off for thick PCB stackups
- Polarized shroud housing preventing mis-mating and protecting square male pins from mechanical damage
- Compatible with standard IDC ribbon cable and individual socket connectors for flexible cabling
- Tin or gold contact finish options supporting 1 A per contact rating for mixed signal and low-current power applications
What is TST-105-04-H-D used for?
The TST-105-04-H-D is widely used as a JTAG, SWD, or SPI debug and expansion header on embedded microcontroller boards and FPGA development platforms where a 10-position 2.54 mm pitch dual-row interface is the standard. Its shrouded housing and polarization key make it a reliable choice for field-replaceable cable harnesses in industrial I/O modules and robotic controller boards requiring frequent connector mating and unmating. The connector also appears in prototyping shields, sensor breakout boards, and data acquisition systems where 10 positions cover a combination of power, ground, clock, data, and chip-select signals in a compact footprint.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TST-105-04-H-D datasheet?
TST-105-04-H-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-105-04-H-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal lines can the TST-105-04-H-D accommodate, and how does the dual-row layout optimize PCB footprint?
The TST-105-04-H-D provides 10 positions arranged in 2 rows of 5 contacts at 0.100 inch (2.54 mm) pitch, accommodating 10 independent signal or power lines within a board footprint of approximately 12.7 mm x 5.08 mm. Compared to a single-row 10-position header of the same pitch, the dual-row arrangement reduces the connector's board length by half, which is valuable on compact embedded controller PCBs where the 10-pin interface must fit alongside other connectors and components.
What connector types mate with TST-105-04-H-D, and what cable assembly options are available for 10-pin 2.54 mm dual-row headers?
The TST-105-04-H-D mates with SAMTEC's TSW and SQT female socket housing series as well as standard IDC 10-pin ribbon cable connectors on 0.100 inch pitch, which are available pre-assembled at cable lengths from 150 mm to 600 mm. Flat ribbon cables are the most common choice for connecting 10-pin JTAG headers to debug probes, providing 10 conductors at 0.100 inch pitch in a flexible form factor that routes neatly within equipment enclosures.
Why is a shrouded header like TST-105-04-H-D preferred over an unshrouded version for a 10-pin JTAG or SWD debug interface?
An unshrouded 10-pin header allows a 10-wire IDC cable to be plugged in 180 degrees reversed, applying VTREF to the TMS or TDO pin and potentially damaging the target processor or debug probe. The TST-105-04-H-D's polarized shroud physically prevents reverse insertion of the mating socket, eliminating this failure mode on boards where 10-pin JTAG or SWD interfaces are serviced by multiple engineers or field technicians who may not verify pin 1 orientation before connecting.
Can TST-105-04-H-D carry both power and signals in the same 10-position connector, and what is the current limit per contact?
Yes, SAMTEC's TST-series 0.100 inch pitch connectors carry approximately 1 A per contact at room temperature, so in a 10-position TST-105-04-H-D it is practical to dedicate 2 pins for a 3.3 V supply, 2 pins for ground, and 6 pins for SPI, I2C, UART, or GPIO signals. If higher current is needed for a 5 V power rail, adjacent contacts can be paralleled to share up to 2 A or 3 A, provided the PCB traces and cable wire gauge also support the combined current without excessive voltage drop.
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