Overview
The BZX84C3V9LT1 is a low-power Zener voltage regulator diode produced by onsemi. This component is part of the BZX84 series, which is known for its high precision and reliability in voltage regulation. The BZX84C3V9LT1 is housed in a small SOT23 (TO-236AB) surface-mounted device (SMD) plastic package, making it suitable for a wide range of applications where space is limited.
This diode is designed to provide stable voltage regulation with a nominal Zener voltage of 3.9V and a tolerance of approximately ±5%. It is part of a series that includes 37 different breakdown voltages, ranging from 2.4V to 75V, catering to various voltage regulation needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type Number | BZX84C3V9LT1 | - |
| Package | SOT23 (TO-236AB) | - |
| Package Size | 2.9 x 1.3 x 1 mm | mm |
| Nominal Zener Voltage (VZ) | 3.9 V | V |
| Zener Voltage Tolerance | ±5% | % |
| Minimum Zener Voltage (VZmin) | 3.7 V | V |
| Maximum Zener Voltage (VZmax) | 4.1 V | V |
| Zener Current (IZT) | 5 mA | mA |
| Maximum Forward Current (IF) | 200 mA | mA |
| Total Power Dissipation (Ptot) | ≤250 mW | mW |
| Non-repetitive Peak Reverse Power Dissipation | ≤40 W | W |
| Maximum Junction Temperature (TJmax) | 150°C | °C |
| Voltage Temperature Coefficient | -3 mV/K | mV/K |
Key Features
- Low Power Consumption: The BZX84C3V9LT1 has a total power dissipation of ≤250 mW, making it suitable for low-power applications.
- Precision Voltage Regulation: With a nominal Zener voltage of 3.9V and a tolerance of approximately ±5%, this diode provides stable voltage regulation.
- Compact Package: Housed in a small SOT23 package, this component is ideal for space-constrained designs.
- Wide Operating Temperature Range: The diode can operate up to a maximum junction temperature of 150°C.
- Low Voltage Temperature Coefficient: The voltage temperature coefficient is -3 mV/K, ensuring minimal voltage drift with temperature changes.
Applications
- Automotive Electronics: Suitable for use in automotive systems due to its robustness and reliability.
- Industrial Control Systems: Used in various industrial applications for voltage regulation and stabilization.
- Consumer Electronics: Found in consumer devices such as mobile phones, tablets, and other portable electronics.
- Power Supplies: Used in power supply units for voltage regulation and protection.
- Computing and Networking Equipment: Used in computing and networking devices to ensure stable voltage levels.
Q & A
- What is the nominal Zener voltage of the BZX84C3V9LT1?
The nominal Zener voltage is 3.9V.
- What is the tolerance of the BZX84C3V9LT1 Zener voltage?
The tolerance is approximately ±5%.
- What is the maximum total power dissipation of the BZX84C3V9LT1?
The maximum total power dissipation is ≤250 mW.
- What is the package type of the BZX84C3V9LT1?
The package type is SOT23 (TO-236AB).
- What is the maximum junction temperature of the BZX84C3V9LT1?
The maximum junction temperature is 150°C.
- What is the voltage temperature coefficient of the BZX84C3V9LT1?
The voltage temperature coefficient is -3 mV/K.
- What are some common applications of the BZX84C3V9LT1?
Common applications include automotive electronics, industrial control systems, consumer electronics, power supplies, and computing and networking equipment.
- What is the maximum forward current of the BZX84C3V9LT1?
The maximum forward current is 200 mA.
- Is the BZX84C3V9LT1 RoHS compliant?
Yes, the BZX84C3V9LT1 is RoHS compliant.
- Where can I find detailed datasheets for the BZX84C3V9LT1?
Detailed datasheets can be found on the onsemi website, as well as through distributors like Mouser and Digi-Key.
