SGD Family
STA Series
The STA series is a multifunctional overvoltage protection component specifically designed for 5V electrostatic protection in the automotive and motorcycle industries. The following is a detailed introduction.
Series Features
Complies with ISO10605 automotive ESD standards
Easy to solder
To meet the soldering performance needs of high-speed data transmission interfaces, the STA series adopts a unique SGD packaging process that offers 20% better solderability than other products of the same size in the industry.
High current capability
To support the high current demands of the automotive and motorcycle industries, the STA series uses a specialized SGD packaging process that enables 20% higher surge current capacity compared to similar-sized products on the market.
Product Features
Size: 0201in ~ 0603in
Operating Voltage: 5V
ESD capability (C4 level): 15KV ~ 25KV
Surge current capability (8/20μs): 5A ~ 14A
Operating Temperature: -55°C ~ 150°C
Compliant with ISO 10605
Series Advantages
Small Size, High Energy, Capacitance Matching
Small Size
To meet the space constraints of the automotive and motorcycle industries, the STA series offers the industry's smallest protective component, effectively reducing PCB footprint.
High Energy Handling
To meet the high energy requirements of the automotive and motorcycle industries, the STA series uses a Clipper process that increases contact area and enhances conductivity, enabling fast and efficient dissipation of surge energy.
Capacitance Matching
In CAN transmission, MLCC capacitors are often used for capacitance matching. The STA series offers a variety of capacitance values to effectively address and suppress noise generation.
Product Specifications
| Part Number | Reverse Working Voltage | Parasitic Capacitance | ESD Ability | Clamping Voltage | Peak Pulse Power | Peak Pulse Current |
|---|---|---|---|---|---|---|
| 0402TA3R3-100K-11 | 3.3V | 10.0pF | ±25KV | 10V | 80W | 8A |
| 0402TA050-0R3W-1 | 5.0V | 0.3pF | ±20KV | 10V | 54W | 3A |
| 0402TA050-2R5A-11 | 5.0V | 2.5pF | ±12KV | 16V | 45W | 3A |
| 0402TA050-100A-11 | 5.0V | 10.0pF | ±25KV | 12V | 96W | 8A |
| 0402TA050-170K-11 | 5.0V | 17.0pF | ±25KV | 12V | 80W | 8A |
| 0402TA070-100A-11 | 7.0V | 12.0pF | ±25KV | 12V | 72W | 6A |
| 0402TA120-060A-11 | 12.0V | 6.0pF | ±25KV | 22V | 130W | 6A |
| 0603TA3R3-100K-11 | 3.3V | 10.0pF | ±25KV | 10V | 80W | 8A |
| 0603TA050-2R5A-11 | 5.0V | 2.5pF | ±12KV | 16V | 45W | 3A |
| 0603TA050-100A-11 | 5.0V | 10.0pF | ±25KV | 12V | 96W | 8A |
Application Scenarios
Sensors
Many sensors in vehicles operate on 5V and return analog or digital signals to the ECU.
ECU（Engine Control Unit，電子控制單元）
The ECU requires regulated 5V power to supply sensors, internal MCUs, and data communication.
Instrument Panel and Display System
The MCU in digital instrument panels may operate on 5V power.
Automotive Infotainment System and USB Power Delivery
Certain components in the multimedia system (e.g., audio amplifier, MCU) USB charging ports typically provide 5V output (e.g., USB-A, USB-C).Devices such as GPS units, dash cams, and in-vehicle cameras are often powered by 5V USB.
In automotive and motorcycle circuits, 5V is primarily used for the ECU, sensors, communication systems (such as CAN Bus and OBD-II), dashboards, in-vehicle entertainment systems, and USB charging. While the main vehicle power supply is typically 12V (or 24V for some commercial vehicles), many electronic components still rely on 5V or 3.3V to operate.
