SMF51AHRQG

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TVS (Transient Voltage Suppressor) Diodes are becoming ever more important in modern electronic applications. The SMF51AHRQG, from STMicroelectronics, is a 30V 5kW bidirectional transient voltage suppressor, suitable for protecting a variety of analog and digital electronic equipment, such as computers, cell phones, and telecommunication equipment. This device’s TVS diodes are specifically designed to protect sensitive transistors from transient voltage events.

The SMF51AHRQG consists of two back-to-back connected TVS diode elements connected in series. Each diode element has two terminals – the anode and the cathode. The two elements are insulated from each other by an alloy junction. This ensures that when a transient voltage event occurs, the current is distributed equally across both diode elements.

The SMF51AHRQG has a reverse standoff voltage (VDR) of 30V, meaning that while the device can be exposed to higher reverse voltages, they will be absorbed across the diode without causing damage to the connected device. The device is also rated to absorb up to 5kW of surge current. This means that the device can absorb very high current pulses, which could damage unprotected circuitry.

The SMF51AHRQG offers a very fast response time, normally just a few nanoseconds, ensuring that it can react quickly enough to protect connected devices from voltage transients. The device also utilizes an ULTRA-K Dielectric Technology, a distribution plate with multiple interconnected toroid structures which is said to provide enhanced protection against the most extreme transient conditions. The device is designed for service in a relatively wide temperature range of -65 to +150˚C.

The SMF51AHRQG can be used in various applications including consumer electronics, industrial equipment, medical equipment, and automotive devices. Its ability to dissipate large amounts of energy without causing damage makes it ideal for protecting all types of sensitive electronic devices and circuits. The device is also available in a variety of surface-mount, through-hole, and leaded packages for added versatility.

In conclusion, the SMF51AHRQG is an ideal choice for protecting sensitive transistors and electronic circuitry from voltage transients. Its bidirectional diode configuration, wide temperature range, fast response time, and ULTRA-K dielectric technology make it well-suited for use in a variety of applications. Its rating of 5kW makes it capable of absorbing highly damaging current pulses without causing damage to connected devices.

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