Overview
The BZX84-A4V7/DG/B4R is a low-power voltage regulator diode manufactured by Nexperia USA Inc. This component is part of the BZX84 series, which is known for its high performance and reliability in various electronic applications. The BZX84-A4V7 is packaged in a small SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package, making it suitable for space-constrained designs. It is designed to provide stable voltage regulation and protection in a wide range of electronic systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VZ (Nominal Zener Voltage) | IZ = 5 mA | 4.65 | - | 4.75 | V |
| IF (Continuous Forward Current) | - | - | - | 200 | mA |
| Ptot (Total Power Dissipation) | Tamb ≤ 25 °C | - | - | 250 | mW |
| PZSM (Non-repetitive Peak Reverse Power Dissipation) | tp = 100 μs; Tj = 25 °C prior to surge | - | - | 40 | W |
| Tj (Junction Temperature) | - | -65 | - | 150 | °C |
| VF (Forward Voltage) | IF = 10 mA | - | - | 0.9 | V |
| IR (Reverse Current) | VR = 1 V | - | - | 20 | μA |
| Tolerance | - | - | - | ±1% | - |
Key Features
- Total Power Dissipation: Maximum of 250 mW, ensuring efficient operation in low-power applications.
- Tolerance Series: Available in ±1%, ±2%, and approximately ±5% tolerance ranges, offering flexibility in design requirements.
- Working Voltage Range: Nominal working voltages from 2.4 V to 75 V (E24 range), covering a wide spectrum of applications.
- Non-repetitive Peak Reverse Power Dissipation: Up to 40 W, providing robust protection against voltage spikes.
- Small Package Size: SOT23 (TO-236AB) package, ideal for space-constrained designs.
- Lead-Free and RoHS Compliant: Ensuring environmental compliance and safety.
Applications
- General Regulation Functions: Suitable for maintaining stable voltage levels in various electronic systems.
- Overvoltage Protection: Protects sensitive components from voltage spikes and transients, enhancing system reliability.
- Signal Conditioning: Used in sensor circuits to provide reference voltages and stabilize signals.
- Power Management: Helps maintain a stable power supply in automotive and industrial electronic systems.
- Automotive Systems: Ideal for applications such as infotainment systems, lighting, and power supplies in vehicles.
Q & A
- What is the nominal Zener voltage of the BZX84-A4V7?
The nominal Zener voltage is 4.7 V, with a tolerance of ±1% (4.65 V to 4.75 V).
- What is the maximum continuous forward current for the BZX84-A4V7?
The maximum continuous forward current is 200 mA.
- What is the total power dissipation of the BZX84-A4V7?
The total power dissipation is up to 250 mW at an ambient temperature of 25 °C.
- What is the non-repetitive peak reverse power dissipation of the BZX84-A4V7?
The non-repetitive peak reverse power dissipation is up to 40 W for a pulse duration of 100 μs.
- What is the junction temperature range for the BZX84-A4V7?
The junction temperature range is from -65 °C to 150 °C.
- What is the forward voltage of the BZX84-A4V7 at 10 mA?
The forward voltage is up to 0.9 V at a forward current of 10 mA.
- Is the BZX84-A4V7 lead-free and RoHS compliant?
Yes, the BZX84-A4V7 is lead-free and RoHS compliant.
- What package type is the BZX84-A4V7 available in?
The BZX84-A4V7 is available in the SOT23 (TO-236AB) package.
- What are some common applications of the BZX84-A4V7?
Common applications include general regulation functions, overvoltage protection, signal conditioning, and power management in automotive and industrial systems.
- Is the BZX84-A4V7 suitable for automotive applications?
Yes, the BZX84-A4V7 is suitable for automotive applications due to its high reliability and performance.
