Overview
The BZX84C30 is a voltage regulator diode, also known as a Zener diode, manufactured by Fairchild Semiconductor, which is now part of onsemi. This component is designed to regulate voltage in electronic circuits by acting as a voltage reference. The BZX84C series includes various voltage ratings, with the BZX84C30 specifically rated for a Zener voltage of around 30 volts.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VZ (Zener Voltage) at IZ = 5.0 mA | 28.0 - 32.0 | V |
| ZZ (Zener Impedance) at IZ = 5.0 mA | 80 | Ω |
| IFRM (Repetitive Peak Forward Current) | 250 | mA |
| IZRM (Repetitive Peak Working Current) | 250 | mA |
| PD (Power Dissipation) at TA = 25°C | 250 | mW |
| RθJA (Junction-to-Ambient Thermal Resistance) | 465 | °C/W |
| TSTG (Storage Temperature Range) | -55 to +150 | °C |
| TJ (Operating Junction Temperature) | -55 to +150 | °C |
Key Features
- Low voltage regulation with a Zener voltage of 30 volts.
- High surge current capability.
- Low thermal resistance.
- Wide operating temperature range (-55°C to +150°C).
- SOT-23 package for compact design.
Applications
- Voltage regulation in power supplies and DC-DC converters.
- Overvoltage protection in electronic circuits.
- Reference voltage source in analog circuits.
- Clamping circuits to limit voltage spikes.
Q & A
- What is the primary function of the BZX84C30 diode?
The primary function of the BZX84C30 diode is to regulate voltage in electronic circuits by acting as a Zener diode.
- What is the Zener voltage rating of the BZX84C30?
The Zener voltage rating of the BZX84C30 is between 28.0 and 32.0 volts at an operating current of 5.0 mA.
- What is the maximum repetitive peak forward current for the BZX84C30?
The maximum repetitive peak forward current for the BZX84C30 is 250 mA.
- What is the power dissipation limit for the BZX84C30 at 25°C?
The power dissipation limit for the BZX84C30 at 25°C is 250 mW.
- What is the junction-to-ambient thermal resistance of the BZX84C30?
The junction-to-ambient thermal resistance of the BZX84C30 is 465 °C/W.
- What is the storage temperature range for the BZX84C30?
The storage temperature range for the BZX84C30 is -55°C to +150°C.
- In what package is the BZX84C30 available?
The BZX84C30 is available in the SOT-23 package.
- What are common applications for the BZX84C30?
Common applications include voltage regulation, overvoltage protection, reference voltage sources, and clamping circuits.
- Is the BZX84C30 still in production?
The BZX84C30 is listed as obsolete and not in production by Fairchild Semiconductor, but it may still be available from some distributors or as surplus stock.
- Where can I find more detailed specifications for the BZX84C30?
You can find detailed specifications in the datasheet available from Fairchild Semiconductor or authorized distributors like Mouser Electronics.
