BZX84C18 (19)
The BZX84C18 series is available from Onsemi at Xecor. Designed for voltage regulation and protection, the BZX84C18 offers a Zener voltage of 18V with a tolerance of ±6.41%, a power dissipation of 350mW, and a compact SOT-23-3 package. Available in surface-mount configurations, it is ideal for applications in automotive, telecommunications, and consumer electronics. Whether used in voltage stabilization, overvoltage protection, or precision voltage reference circuits, this series ensures reliable performance, low power consumption, and high efficiency for demanding applications. Xecor is an authorized distributor for Onsemi. Please view our extensive selection of the BZX84C18 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| BZX84C18LT1G | Diode Zener SOT23 0.3W 18V single diode 0.05uA reel tape | SOT23-3 | 6,669 | |
| BZX84C18-7-F | Zener diodes meeting AEC-Q101 standards, with a 18V Zener voltage and power rating of 300mW | SOT23-3 | 8,789 | |
| BZX84C18LT1 | The BZX84C18LT1 product is a Zener Voltage Regulator Zener Diode featuring a 18V Zener voltage with a 6 | SOT-23-6 | 7,059 | |
| BZX84C18-E3-08 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R | SOT23-3 | 3,660 | |
| BZX84C18-E3-18 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R | SOT-23-3 | 2,316 | |
| BZX84C18-G3-08 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R | SOT23-3 | 6,610 | |
| BZX84C18-G3-18 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R | SOT-23-3 | 4,873 | |
| BZX84C18-HE3-08 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R Automotive AEC-Q101 | SOT23-3 | 5,149 | |
| BZX84C18-HE3-18 | Diode Zener Single 18V 5% 500mW 3-Pin SOT-23 T/R Automotive AEC-Q101 | SOT23-3 | 4,690 | |
| BZX84C18-TP | Zener Diode Single 18V 5% 45Ohm 350mW 3-Pin SOT-23 T/R | SOT23-3 | 5,633 | |
| BZX84C18CC-HF | Zener Diodes DIODE ZENER COMMON CATHODE 18V 350mW 5% SOT-23 | SOT23-3 | 3,031 | |
| BZX84C18ET1G | Zener Diode Single 18V 6% 45Ohm 300mW 3-Pin SOT-23 T/R | SOT23-3 | 5,026 | |
| BZX84C18ET1 | Zener Diode 18 V 225 mW ±6% Surface Mount SOT-23-3 (TO-236) | SOT23-3 | 6,431 | |
| BZX84C18ET3 | Zener Diode 18 V 225 mW ±6% Surface Mount SOT-23-3 (TO-236) | SOT23-3 | 5,713 | |
| BZX84C18ET3G | 225mW 18V SOT-23-3(TO-236-3) Zener Diodes ROHS | SOT23-3 | 6,693 | |
| BZX84C18HE3-TP | Zener Diode Single 18V 5% 45Ohm 350mW Automotive AEC-Q101 3-Pin SOT-23 T/R | TO-236-3 | 5,346 | |
| BZX84C18LT3 | Zener Diode 18 V 225 mW ±6% Surface Mount SOT-23-3 (TO-236) | SOT23-3 | 7,726 | |
| BZX84C18LT3G | Diode Zener Single 18V 5% 300mW 3-Pin SOT-23 T/R | SOT23-3 | 6,712 | |
| BZX84C18W-TP | Zener Diode Single 18V 5% 45Ohm 200mW 3-Pin SOT-323 T/R | SC-70, SOT-323 | 5,048 |
Key Featrues
Precision Voltage Regulation: The Zener Diode operates at a precise 18V Zener voltage with a tolerance of ±6.41%, ensuring stable voltage regulation in circuits. This accuracy is crucial for protecting sensitive components from voltage spikes and maintaining consistent performance in power supply applications.
Compact SOT-23 Package: The diode is housed in a small SOT-23-3 package, making it ideal for space-constrained applications like mobile devices, wearables, and compact electronics. Its small footprint allows for high-density PCB designs without compromising performance.
High Power Dissipation (350mW): With a power dissipation rating of 350mW, this Zener diode can handle higher power loads compared to standard 300mW diodes. This feature enhances its reliability in demanding applications such as automotive electronics and industrial control systems.
AEC-Q101 Qualification: The diode is AEC-Q101 qualified, ensuring it meets stringent automotive industry standards for reliability and performance. This makes it suitable for use in harsh environments, such as automotive systems, where temperature fluctuations and vibrations are common.
Low Reverse Leakage Current (100nA): The diode exhibits a low reverse leakage current of 100nA, minimizing power loss and improving efficiency in low-power circuits. This feature is particularly beneficial in battery-operated devices, extending battery life and enhancing energy efficiency.
Compact SOT-23 Package: The diode is housed in a small SOT-23-3 package, making it ideal for space-constrained applications like mobile devices, wearables, and compact electronics. Its small footprint allows for high-density PCB designs without compromising performance.
High Power Dissipation (350mW): With a power dissipation rating of 350mW, this Zener diode can handle higher power loads compared to standard 300mW diodes. This feature enhances its reliability in demanding applications such as automotive electronics and industrial control systems.
AEC-Q101 Qualification: The diode is AEC-Q101 qualified, ensuring it meets stringent automotive industry standards for reliability and performance. This makes it suitable for use in harsh environments, such as automotive systems, where temperature fluctuations and vibrations are common.
Low Reverse Leakage Current (100nA): The diode exhibits a low reverse leakage current of 100nA, minimizing power loss and improving efficiency in low-power circuits. This feature is particularly beneficial in battery-operated devices, extending battery life and enhancing energy efficiency.
Applications
Voltage Regulation in Portable Electronics: The BZX84C18 Zener diode is ideal for providing stable voltage regulation in portable electronic devices, such as smartphones and tablets. Its 18V Zener voltage and 350mW power dissipation ensure reliable performance in compact designs, making it suitable for protecting sensitive components from voltage spikes and ensuring consistent operation in battery-powered applications.
Overvoltage Protection in Automotive Systems: With its AEC-Q101 qualification, the BZX84C18 Zener diode is well-suited for automotive applications, such as overvoltage protection in electronic control units (ECUs) and infotainment systems. Its 18V Zener voltage and 6.4% tolerance ensure precise clamping, safeguarding automotive electronics from voltage transients and ensuring compliance with stringent automotive standards.
Signal Clipping in Audio Circuits: The BZX84C18 Zener diode can be used in audio circuits for signal clipping and waveform shaping. Its 18V Zener voltage and low reverse leakage current (100 nA) make it an excellent choice for maintaining signal integrity and preventing distortion in audio amplifiers and effects pedals, ensuring high-quality sound reproduction.
Voltage Reference in Power Supplies: The BZX84C18 Zener diode is suitable for use as a voltage reference in low-power DC-DC converters and linear regulators. Its 18V Zener voltage and 350mW power dissipation provide a stable reference point, ensuring accurate voltage regulation and efficient power management in industrial and consumer power supply designs.
Overvoltage Protection in Automotive Systems: With its AEC-Q101 qualification, the BZX84C18 Zener diode is well-suited for automotive applications, such as overvoltage protection in electronic control units (ECUs) and infotainment systems. Its 18V Zener voltage and 6.4% tolerance ensure precise clamping, safeguarding automotive electronics from voltage transients and ensuring compliance with stringent automotive standards.
Signal Clipping in Audio Circuits: The BZX84C18 Zener diode can be used in audio circuits for signal clipping and waveform shaping. Its 18V Zener voltage and low reverse leakage current (100 nA) make it an excellent choice for maintaining signal integrity and preventing distortion in audio amplifiers and effects pedals, ensuring high-quality sound reproduction.
Voltage Reference in Power Supplies: The BZX84C18 Zener diode is suitable for use as a voltage reference in low-power DC-DC converters and linear regulators. Its 18V Zener voltage and 350mW power dissipation provide a stable reference point, ensuring accurate voltage regulation and efficient power management in industrial and consumer power supply designs.
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