TZMB15-GS18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	15V
Tolerance:	±2%
Power - Max:	500mW
Impedance (Max) (Zzt):	30 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 11V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package:	SOD-80 MiniMELF

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Introduction to the TZMB15-GS18

The TZMB15-GS18 is a low-power typical Zener diode produced by Diodes Incorporated. It is mainly used in voltage regulation and clippers (frequency control) applications. The diode is a single terminal, general-purpose device, able to operate in temperatures between -40°C and +85°C.

Features and Specifications

The TZMB15-GS18 features a range of parameters that define its performance and reliability. These include, but are not limited to:• Power Dissipation: 190 mW • Repetitive Reverse Voltage: 6.8V • Breakdown Voltage (Vbrey): 6.8V • Maximum Peak Reverse Current (IrM): 500 nA • Forward Voltage at IF = 1mA: 1.3V • Zener Impedance (Zzt @ I vz): 8 ohms • Temperature Coefficient of Zener Voltage: 0.07%/K • Maximum Zener Voltage (Vz max): 6.5V

Applications and Working Principle

The TZMB15-GS18 is often used in voltage regulator circuits where a reliable and low-cost solution is preferred. When voltage is applied, holes and electrons flow into the diode junction, releasing energy in the form of heat. This creates a space charge layer in front of the junction which acts as a barrier and results in the voltage not rising further. The voltage regulator works by relying on the Zener effect, in which electrons jump across the depleted space charge layer, resulting in a constant voltage independent of the applied current. In addition to voltage regulation, the TZMB15-GS18 can also be used in clippers and frequency control applications. Clippers refer to circuits used to limit the peak voltage of waveforms, allowing for waveform shaping. The TZMB15-GS18 can be used in these circuits due to its low power consumption, high reverse breakdown voltage, and reliable operation over a wide temperature range. In frequency control applications, the diode is used to shape a waveform by clipping off frequency components above a certain threshold. This is enabled by the diode’s low reverse breakdown voltage, as well as its ability to produce an almost symmetrical limit waveform.

Conclusion

The TZMB15-GS18 is a reliable and low-power Zener diode produced by Diodes Incorporated. It is used in a variety of applications, such as voltage regulation, clipper, and frequency control circuits. Its low power consumption, high reverse breakdown voltage, and reliable operation over a wide temperature range make it suitable for these applications.

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