Overview
The BZX84-B3V9/DG/B4R, produced by Nexperia USA Inc., is a single Zener diode designed to provide voltage regulation in a variety of electronic devices. This component is part of the BZX84 series, known for its reliability and wide range of applications. The BZX84-B3V9 is specifically rated for a Zener voltage of 3.9V, making it suitable for use in circuits requiring stable voltage reference points.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 3.9 | V |
| Test Current (IZT) | 2 mA | mA |
| Total Power Dissipation (Ptot) | ≤ 250 mW | mW |
| Reverse Leakage Current (IR) at VR | ≤ 0.5 μA | μA |
| Dynamic Resistance (ZZ) at IZT | ≈ 90 Ω | Ω |
| Temperature Coefficient (αVZ) | ≈ 10^-4/°C | /°C |
| Operating Temperature Range | -55 to +150 °C | °C |
| Package Type | SOT-23, TO-236AB |
Key Features
- Silicon planar Zener diodes with high stability and reliability.
- Zener voltages graded according to the international E24 standard.
- Available in ±2% tolerance series.
- AEC-Q101 qualified versions available for automotive applications.
- ESD capability according to AEC-Q101: human body model > 8 kV, machine model > 800 V.
- RoHS-compliant and commercial grade options.
Applications
The BZX84-B3V9/DG/B4R is used in a wide range of electronic devices, including:
- Computers and smartphones for voltage regulation.
- Televisions and other consumer electronics for stable voltage reference points.
- Automotive systems, particularly in AEC-Q101 qualified versions.
- Medical devices requiring precise voltage control.
- Industrial control systems and power supplies.
Q & A
- What is the Zener voltage of the BZX84-B3V9/DG/B4R?
The Zener voltage is 3.9V.
- What is the total power dissipation of this diode?
The total power dissipation is ≤ 250 mW.
- What are the operating temperature ranges for this component?
The operating temperature range is -55 to +150 °C.
- Is the BZX84-B3V9/DG/B4R RoHS-compliant?
- What are the available package types for this diode?
The available package types are SOT-23 and TO-236AB.
- Does this diode have AEC-Q101 qualification?
- What is the dynamic resistance of the BZX84-B3V9/DG/B4R at the test current?
The dynamic resistance is approximately 90 Ω at the test current.
- What is the reverse leakage current at the specified reverse voltage?
The reverse leakage current is ≤ 0.5 μA at the specified reverse voltage.
- What are some common applications of the BZX84-B3V9/DG/B4R?
- What is the ESD capability of this diode according to AEC-Q101?
8 kV for the human body model and > 800 V for the machine model.
