Overview
The BZX84B4V3-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 precision in voltage regulation. The BZX84B4V3-HE3-18 is specifically designed to operate with a nominal Zener voltage of 4.3 volts, making it suitable for a wide range of applications requiring stable voltage reference points.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Zener Voltage Range | VZ | 4.0 to 4.6 | V |
| Test Current | IZT | 5 mA | mA |
| Reverse Leakage Current | IR | 1 μA | μA |
| Dynamic Resistance | ZZ | 600 Ω | Ω |
| Temperature Coefficient | αVZ | -6 to -1 x 10^-4/°C | 10^-4/°C |
| Power Dissipation | Ptot | 300 mW | mW |
| Thermal Resistance Junction to Ambient Air | RthJA | 420 K/W | K/W |
| Junction Temperature | Tj | 150 °C | °C |
| Storage Temperature Range | Tstg | -65 to +150 °C | °C |
| Operating Temperature Range | Top | -55 to +150 °C | °C |
| Package | SOT-23 | ||
| Molding Compound | UL 94 V-0 | ||
| Moisture Sensitivity Level | MSL level 1 (according J-STD-020) |
Key Features
- High Precision Zener Voltage: Graded according to the international E24 standard with a nominal Zener voltage of 4.3 volts and a tolerance of ± 5%.
- Low Dynamic Resistance: Ensures stable voltage regulation under varying current conditions.
- High Reliability: AEC-Q101 qualified, making it suitable for automotive and other high-reliability applications.
- Compact Package: SOT-23 package, ideal for space-constrained designs.
- Wide Operating Temperature Range: Operates from -55 °C to +150 °C, suitable for various environmental conditions.
- RoHS Compliant: Meets environmental regulations, ensuring the component is free from hazardous substances.
Applications
- Voltage Regulation: Used in voltage regulator circuits to provide stable reference voltages.
- Overvoltage Protection: Acts as a voltage clamp to protect electronic circuits from voltage spikes and surges.
- Automotive Electronics: Suitable for use in automotive systems due to its AEC-Q101 qualification.
- Consumer Electronics: Used in various consumer electronic devices requiring stable voltage references.
- Industrial Control Systems: Employed in industrial control systems for reliable voltage regulation and protection.
Q & A
- What is the nominal Zener voltage of the BZX84B4V3-HE3-18?
The nominal Zener voltage is 4.3 volts.
- What is the tolerance of the Zener voltage?
The Zener voltage tolerance is ± 5%.
- What is the test current for the Zener voltage measurement?
The test current is 5 mA.
- What is the dynamic resistance of the BZX84B4V3-HE3-18?
The dynamic resistance is 600 Ω.
- What is the maximum power dissipation of the component?
The maximum power dissipation is 300 mW.
- What is the thermal resistance junction to ambient air?
The thermal resistance junction to ambient air is 420 K/W.
- What is the operating temperature range of the BZX84B4V3-HE3-18?
The operating temperature range is -55 °C to +150 °C.
- Is the BZX84B4V3-HE3-18 RoHS compliant?
Yes, it is RoHS compliant.
- What package type is used for the BZX84B4V3-HE3-18?
The component is packaged in an SOT-23 package.
- What are some common applications of the BZX84B4V3-HE3-18?
Common applications include voltage regulation, overvoltage protection, automotive electronics, consumer electronics, and industrial control systems.
