ZMM5225B-7 Discrete Semiconductor Products

The ZMM5225B-7 is a single Zener diode, manufactured by ON Semiconductor. It is used in applications requiring protection from excessive transients and is also capable of reliable thermal operation up to a power dissipation of 500 mW. It features low reverse leakage, a maximum operating voltage of 7.0 V, and an operating temperature range of -65 °C to +125 °C. This makes the ZMM5225B-7 an ideal choice for applications where the reverse voltage is not to exceed the maximum rating of 7.0 V.

In addition to its low reverse leakage, the ZMM5225B-7 also has an excellent noise immunity and a low temperature coefficient. It is capable of withstanding voltage transients up to ± 20 V for up to 1 ms. The device is voltage-temperature rated to ensure reliable operation even during extreme temperature changes. This makes the ZMM5225B-7 highly suitable for applications in harsh environments, such as automotive, telecom, and medical systems.

The working principle of the ZMM5225B-7 is based on the principle of a Zener diode, which is a two-terminal device with a moderately low reverse breakdown voltage. When the Zener diode is reverse-biased, the high electric potential found in the depletion region provides an electric field that causes electrons and holes to flow across the junction, forming a strong reverse current. This prevents an excess of voltage from damaging the device or other components in the circuit. The Zener diode also works as a voltage regulator, providing a steady voltage to the circuit.

The ZMM5225B-7 is commonly used in automotive and telecom applications, where it is used for overvoltage protection in devices such as voltage converters and voltage-mode switching power supplies. It can also be used as a clamp for voltage transients, and in low-voltage circuits where its excellent temperature stability provides reliability and protection from overvoltage. The ZMM5225B-7 is available in a TO-220 package, making it easy to integrate into circuit boards.

Overall, the ZMM5225B-7 is an ideal choice for applications requiring reliable voltage regulation and protection from excessive transients. It has a maximum voltage rating of 7.0 V, an operating temperature range of -65 °C to +125 °C, and excellent noise immunity and temperature stability. For those seeking an ideal and reliable single Zener diode, the ZMM5225B-7 is a great option.