Overview
The STY34NB50 is a high-performance N-channel power MOSFET manufactured by STMicroelectronics. Although it is currently listed as obsolete and no longer in production, it was highly regarded for its robust specifications and versatility in various power management applications. This MOSFET was particularly suited for high-voltage and high-current applications, such as flyback converters and LED lighting systems.
Key Specifications
| Parameter | Value |
|---|---|
| VDS (Drain-Source Voltage) | 500 V |
| RDS(on) (On-State Resistance) | 0.11 Ω |
| ID (Continuous Drain Current) | 34 A |
| VGS(th) (Threshold Voltage) | 2-4 V |
| PD (Power Dissipation) | Dependent on package and cooling conditions |
| Avalanche Capability | 100% avalanche tested |
| Protection | Zener-protected |
Key Features
- High drain-source voltage (VDS) of 500 V, making it suitable for high-voltage applications.
- Low on-state resistance (RDS(on)) of 0.11 Ω, which minimizes power losses.
- High continuous drain current (ID) of 34 A, enabling it to handle high current loads.
- 100% avalanche tested, ensuring robustness against transient conditions.
- Zener-protected, providing additional protection against voltage spikes.
Applications
- Flyback converters: Ideal for power supply designs requiring high efficiency and reliability.
- LED lighting systems: Suitable for driving high-power LEDs in various lighting applications.
- Power management systems: Can be used in a variety of power management circuits requiring high voltage and current handling.
Q & A
- What is the maximum drain-source voltage of the STY34NB50?
The maximum drain-source voltage (VDS) is 500 V. - What is the on-state resistance of the STY34NB50?
The on-state resistance (RDS(on)) is 0.11 Ω. - What is the continuous drain current rating of the STY34NB50?
The continuous drain current (ID) is 34 A. - Is the STY34NB50 avalanche tested?
Yes, the STY34NB50 is 100% avalanche tested. - What kind of protection does the STY34NB50 have?
The STY34NB50 is Zener-protected. - What are some common applications for the STY34NB50?
Common applications include flyback converters, LED lighting systems, and other power management circuits. - Is the STY34NB50 still in production?
No, the STY34NB50 is listed as obsolete and no longer manufactured. - Where can I find substitutes for the STY34NB50?
You can find substitutes on websites like Digi-Key, Mouser, or other electronic component distributors. - What is the significance of the low on-state resistance in the STY34NB50?
The low on-state resistance minimizes power losses and improves efficiency in power management applications. - How does the Zener protection in the STY34NB50 benefit its operation?
The Zener protection helps safeguard the MOSFET against voltage spikes and transient conditions.
