Overview
The BZX84C33-HE3-18 is a silicon planar Zener diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the BZX84 series, which is known for its high reliability and stability in voltage regulation applications. The BZX84C33-HE3-18 is specifically designed to provide a stable voltage reference with a nominal Zener voltage of 3.3 volts.
Key Specifications
| Parameter | Test Condition | Symbol | Value | Unit |
|---|---|---|---|---|
| Zener Voltage Range | - | VZ | 3.1 - 3.5 | V |
| Test Current | IZT = 5 mA | IZT | 5 | mA |
| Reverse Leakage Current | VR = 1 V | IR | 1 | μA |
| Dynamic Resistance | f = 1 kHz, IZT = 5 mA | ZZ | 600 | Ω |
| Temperature Coefficient | - | αVZ | -8 to -3 | 10-4/°C |
| Power Dissipation | Tamb = 25 °C, device on fiberglass substrate | Ptot | 300 | mW |
| Thermal Resistance Junction to Ambient Air | Tamb = 25 °C, device on fiberglass substrate | RthJA | 420 | K/W |
| Junction Temperature | - | Tj | 150 | °C |
| Storage Temperature Range | - | Tstg | -65 to 150 | °C |
Key Features
- Stable Voltage Reference: The BZX84C33-HE3-18 provides a stable Zener voltage of 3.3 volts, making it suitable for voltage regulation applications.
- Low Dynamic Resistance: With a dynamic resistance of 600 Ω at 5 mA, this diode ensures minimal voltage drop and high stability.
- Temperature Stability: The temperature coefficient ranges from -8 to -3 x 10-4/°C, ensuring stable performance over a wide temperature range.
- High Reliability: Manufactured by Vishay, a leading semiconductor company, ensuring high reliability and durability.
- Compact Package: Available in the SOT-23 package, making it suitable for space-constrained designs.
Applications
- Voltage Regulation: Ideal for voltage regulation circuits where a stable reference voltage is required.
- Overvoltage Protection: Can be used to protect electronic circuits from overvoltage conditions.
- Signal Conditioning: Suitable for signal conditioning and filtering applications due to its stable voltage characteristics.
- Power Supplies: Used in power supply circuits to provide a stable voltage reference.
- Automotive and Industrial Electronics: Applicable in various automotive and industrial electronic systems requiring stable voltage references.
Q & A
- What is the nominal Zener voltage of the BZX84C33-HE3-18?
The nominal Zener voltage is 3.3 volts.
- What is the test current for the Zener voltage measurement?
The test current is 5 mA.
- What is the dynamic resistance of the BZX84C33-HE3-18 at 5 mA?
The dynamic resistance is 600 Ω.
- What is the temperature coefficient range for this diode?
The temperature coefficient ranges from -8 to -3 x 10-4/°C.
- What is the maximum power dissipation for the BZX84C33-HE3-18?
The maximum power dissipation is 300 mW at Tamb = 25 °C.
- What is the thermal resistance junction to ambient air for this diode?
The thermal resistance junction to ambient air is 420 K/W.
- What is the maximum junction temperature for the BZX84C33-HE3-18?
The maximum junction temperature is 150 °C.
- What is the storage temperature range for this component?
The storage temperature range is -65 to 150 °C.
- In what package is the BZX84C33-HE3-18 available?
The BZX84C33-HE3-18 is available in the SOT-23 package.
- What are some common applications for the BZX84C33-HE3-18?
Common applications include voltage regulation, overvoltage protection, signal conditioning, power supplies, and various automotive and industrial electronic systems.
