BZX284-B12,115

The BZX284-B12,115 is a precision voltage reference diode manufactured by NXP Semiconductors. This component is designed to provide a stable reference voltage, making it ideal for various applications in electronic circuits, including voltage regulation, signal conditioning, and analog-to-digital conversion.

Key Features:

1. Voltage Reference: The BZX284 series offers a nominal reference voltage of 12V, which is highly stable over a range of operating conditions. This makes it suitable for applications requiring a reliable voltage reference.

2. Zener Diode Configuration: The device operates as a Zener diode, allowing it to maintain a constant voltage across its terminals even when the current flowing through it varies within specified limits. This characteristic is crucial for maintaining voltage stability in circuits.

3. Temperature Coefficient: The BZX284-B12,115 has a low temperature coefficient, which means that its output voltage changes very little with temperature variations. This stability is essential for precision applications where temperature fluctuations can affect performance.

4. Power Dissipation: The diode is designed to handle a maximum power dissipation of around 1W, allowing it to operate effectively in various circuit configurations without overheating.

5. Package Type: The BZX284-B12,115 is typically available in a DO-35 glass package, which is compact and suitable for through-hole mounting. This package design helps in minimizing space on the PCB while providing adequate thermal performance.

6. Reverse Voltage Rating: The device is rated for a reverse voltage of 12V, making it suitable for applications that require a stable reference voltage in this range.

7. Applications: Common applications for the BZX284-B12,115 include power supplies, voltage regulation circuits, reference voltage sources for operational amplifiers, and other analog circuits where a stable voltage is critical.

8. Pin Configuration: The diode typically has two terminals: the anode and cathode. The cathode is marked with a band, indicating the direction of current flow and ensuring correct installation in the circuit.

Electrical Characteristics:

• Nominal Voltage: 12V
• Zener Impedance: Low impedance at specified test conditions, ensuring minimal voltage drop under load.
• Dynamic Resistance: Provides a measure of the diode's response to changes in current, which is important for understanding its performance in varying load conditions.

Conclusion:

The BZX284-B12,115 from NXP Semiconductors is a reliable and efficient voltage reference diode that offers excellent stability and performance for a wide range of electronic applications. Its robust design and low temperature coefficient make it a preferred choice for engineers looking to implement precise voltage regulation in their circuits.