TST-102-03-G-D SAMTEC Connector (Other) In Stock
The SAMTEC TST-102-03-G-D is a 4-position dual-row shrouded PCB header with 2.54 mm (0.100 inch) pitch and phosphor bronze male contacts finished with 10 µin gold over 50 µin nickel for high-reliability mating. Its compact 0.5 inch body suits space-constrained PCB designs. Available through authorized worldwide distributors for prototyping and volume production.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- TST-102-03-G-D Datasheet PDF
- Category
- Connector
- Price
- From $1.2500(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-102-03-G-D?
- 4-position dual-row shrouded PCB header with 2.54 mm pitch — compact 0.5 inch body for minimal PCB real estate
- 10 µin gold over 50 µin nickel contact finish provides high-cycle mating reliability and corrosion resistance for demanding signal interfaces
- Phosphor bronze contact material delivers superior spring force and low contact resistance for stable electrical performance
- Shrouded body with rectangular contact pattern ensures polarized mating with standard 2.54 mm dual-row female sockets
- Gold termination finish on through-hole tails supports selective and wave soldering for flexible PCB assembly
What is TST-102-03-G-D used for?
The TST-102-03-G-D shrouded PCB header is used in test and measurement equipment, debug programming interfaces, and high-reliability embedded systems where repeated mate/unmate cycles require gold contact durability. Its 4-position dual-row layout fits compact JTAG, SPI, and I2C header footprints on microcontroller evaluation boards and sensor breakout modules. The heavy gold contact finish makes it appropriate for medical device interconnects and aerospace instrumentation boards demanding IPC Class 3 reliability standards.
What are the specifications of TST-102-03-G-D?
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.365inch |
| Body Length | 0.5inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (10) OVER NICKEL (50) |
| Contact Finish Termination | Gold (Au) - 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 | e4 |
| 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 | 4 |
| 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-102-03-G-D datasheet?
TST-102-03-G-D Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TST-102-03-G-D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many mating cycles can the TST-102-03-G-D contacts withstand given the gold finish specification?
The TST-102-03-G-D uses 10 µin gold over 50 µin nickel on the mating contact surface, which SAMTEC rates for 500 or more mating cycles under standard test conditions. This exceeds the 25-cycle rating of gold-flash contacts, making the TST-102-03-G-D appropriate for test jigs, debug headers, and field-replaceable modules that see frequent connector cycling.
What contact material does the TST-102-03-G-D use and why does it matter for signal integrity?
The contacts are made from phosphor bronze, which provides a higher elastic modulus than brass and maintains a normal contact force of 100 grams or more per pin over thousands of deflection cycles. This spring characteristic keeps the mating contact resistance below 20 milliohms throughout the connector's service life, which is critical in sensitive analog sensor interfaces and high-speed digital headers running at signal rise times below 5 nanoseconds.
What female socket series is designed to mate with the TST-102-03-G-D?
SAMTEC's SSW or SSQ series dual-row female sockets at 2.54 mm pitch with 4 positions (2 per row) are the designed mating partner for the TST-102-03-G-D. The shroud on the header aligns the socket during engagement and provides a polarized key that prevents 180-degree misalignment, protecting the 4 gold-plated pin contacts from bending damage.
For a compact programming header design, how much PCB area does the TST-102-03-G-D occupy?
The TST-102-03-G-D body measures 0.5 inches long by 0.365 inches wide and 0.365 inches deep, occupying approximately 0.18 square inches of PCB footprint. This small size makes it practical as a dedicated JTAG or SPI debug header on boards as small as 20 mm × 20 mm, without consuming excessive board area relative to the 4-pin signal count.
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Why Buy from FindMyChip
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+ | $1.5500 | $3875.00 |
| 5000+ | $1.2800 | $6400.00 |
| 7500+ | $1.2500 | $9375.00 |
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