X0202MN 5BA4 STMicroelectronics SCR (SOT223 (3-Pin)) In Stock
X0202MN 5BA4 is a silicon-controlled rectifier (SCR) thyristor rated at 800 mA RMS current and 600 V repetitive peak off-state voltage. Packaged in a compact SOT-223 3-pin case, it delivers reliable switching for AC power control applications. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- SOT223 (3-Pin)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- X0202MN 5BA4 Datasheet PDF
- Category
- SCR
- Price
- From $0.0943(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of X0202MN 5BA4?
- 800 mA RMS on-state current rating with 600 V repetitive peak off-state voltage for robust AC switching
- Compact SOT-223 3-pin package enables efficient PCB integration with easy heatsinking via the large tab
- Low gate trigger current for direct microcontroller or optocoupler interfacing in lighting and motor control designs
What is X0202MN 5BA4 used for?
The X0202MN 5BA4 is suitable for AC power switching and phase-control applications such as lamp dimmers, small motor speed controllers, and solid-state relay circuits operating at mains voltages up to 600 V. Its SOT-223 footprint makes it an excellent choice for space-constrained PCB designs in home appliances, HVAC controls, and industrial lighting equipment. The device's low trigger sensitivity allows direct gate drive from low-power microcontroller outputs or optocoupler drivers operating at 3.3 V or 5 V logic levels.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the X0202MN 5BA4 datasheet?
X0202MN 5BA4 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for X0202MN 5BA4?
Compatible alternatives and drop-in replacements for X0202MN 5BA4:
suggested
Frequently Asked Questions
What are the maximum voltage and current ratings of the X0202MN 5BA4 thyristor?
The X0202MN 5BA4 is rated for 600 V repetitive peak off-state voltage (VDRM) and 800 mA RMS on-state current. These ratings make it suitable for mains-connected AC switching circuits operating at 110 V or 230 V supply voltages in low-power lighting and control applications.
Which PCB package does the X0202MN 5BA4 use, and how does it compare to a TO-92 package for thermal performance?
The X0202MN 5BA4 uses a SOT-223 package, which provides a large metal tab for improved thermal dissipation compared to the standard TO-92 3-pin through-hole package. The SOT-223 tab can be soldered to a copper pour or heatsink plane on the PCB, improving thermal resistance and allowing sustained operation at the full 800 mA current rating.
Can the X0202MN 5BA4 be triggered directly from a 3.3 V microcontroller GPIO pin?
Yes, the X0202MN 5BA4 has a low gate trigger current requirement, typically around 5 mA to 10 mA at gate voltages below 1.5 V, making it compatible with 3.3 V or 5 V microcontroller outputs through a simple series resistor. An optocoupler is recommended for mains-isolated designs to protect the MCU from 600 V line transients.
What types of applications are best served by the X0202MN 5BA4 SCR?
The X0202MN 5BA4 is ideal for AC phase-control circuits such as lamp dimmers operating at 230 V, 50 Hz mains, as well as small motor speed control and solid-state relay designs. Its 800 mA current rating covers loads up to approximately 180 W at 230 V, making it well-suited for small appliance control, heater regulation, and fan speed adjustment circuits.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1060 | $0.11 |
| 4000+ | $0.0969 | $387.40 |
| 8000+ | $0.0955 | $764.32 |
| 16000+ | $0.0943 | $1508.32 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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