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MMBZ20VALT3 from MOTOROLA

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MMBZ20VALT3

Manufacturer: MOTOROLA, MOTO

24 and 40 Watt Peak Power Zener Transient Voltage Suppressors

Partnumber Manufacturer Quantity Availability
MMBZ20VALT3 MOTOROLA, MOTO 10050 In Stock

Description and Introduction

24 and 40 Watt Peak Power Zener Transient Voltage Suppressors # Introduction to the MMBZ20VALT3 Zener Diode  

The MMBZ20VALT3 is a surface-mount Zener diode designed for voltage regulation and transient suppression in electronic circuits. Part of the small-signal diode family, this component is housed in a compact SOT-23 package, making it suitable for space-constrained applications such as portable devices, power supplies, and communication equipment.  

With a nominal Zener voltage (VZ) of 20V, the MMBZ20VALT3 provides precise voltage clamping, ensuring stable operation in circuits requiring overvoltage protection. It features a low dynamic impedance, which enhances its ability to maintain consistent voltage regulation under varying current conditions.  

Key characteristics of the MMBZ20VALT3 include a power dissipation rating of 350mW and a typical operating temperature range of -55°C to +150°C, ensuring reliable performance in diverse environments. Its fast response time makes it effective in suppressing voltage spikes, protecting sensitive components from damage.  

Common applications include voltage reference circuits, signal conditioning, and ESD (electrostatic discharge) protection. Engineers often integrate this diode into designs where precision and reliability are critical.  

The MMBZ20VALT3 is widely used in consumer electronics, automotive systems, and industrial controls, offering a balance of performance and efficiency. Its compatibility with automated assembly processes further enhances its appeal for high-volume manufacturing.  

For optimal performance, designers should consider factors such as load conditions, thermal management, and circuit layout when implementing this Zener diode in their designs.

Application Scenarios & Design Considerations

24 and 40 Watt Peak Power Zener Transient Voltage Suppressors

Alternative Part Number

  • BZX84C20 --: Single 20V zener in SOT-23 with similar power rating; widely available and a common substitute for dual-diode clamp applications.
  • MMBZ20VAL --: Same dual 20V zener clamp function in SOT-23 from the successor of Motorola's discrete business; direct functional equivalent.
  • AZ23C20 --: Dual common-anode 20V zener in SOT-23, matching the dual-diode configuration and voltage of the original part.
  • PESD20VL1BA --: 20V low-capacitance ESD protection diode in SOT-23, functionally similar for transient clamping where the original dual zener was used for protection.
  • SD05 --: SOT-23 transient voltage suppressor with comparable clamping behavior, suitable as an ESD/transient protection alternative in the same footprint.

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