JANTX1N6461 Circuit Protection

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TVS-diodes are commonly used in electronic circuits for protection against transient voltage surges such as in automotive, aerospace, and military applications. The 1N6461 JANTX is a TransZorb® circuit-protection device manufactured by Texas Instruments. It is a Voltage-clamping TransZorb TVS Diode, used to protect circuits in automotive, consumer, industrial, and telecom applications from overvoltage transients.

A TransZorb TVS Diode, like the JANTX 1N6461, is used to protect circuits from noise transients in communications, automobiles, consumer electronics, and industrial applications. It is designed to provide overvoltage protection for voltage perturbations that are much shorter in duration than the power line cycle period. It is also used as an ESD protection device due to its low-leakage current.

The JANTX 1N6461 TVS Diode is configured as a two-diode array and available with either unidirectional or bidirectional voltage protection. It has a peak pulse power rating of 400W, an operation voltage range of 5.0V to 25V, a clamping voltage of 25V, and a reverse stand-off voltage rated up to 5V. The diode\'s non-linear impedance provides an effective solution for protecting sensitive circuits from a wide range of voltage transients. In addition, its large standoff voltage range makes it ideal for applications where the operating voltage can vary significantly, such as those in automotive, aerospace, and military applications.

The JANTX 1N6461 TVS Diode works by clamping transient voltage events that exceed the device’s peak pulse power rating. When an overvoltage event above the specified stand-off voltage occurs, the TVS Diode will act as a low impedance shunt, diverting the surge energy to ground. This causes the device’s junction between cathode and anode to experience a voltage breakdown that will reduce the overvoltage to a safe level.

Once clamped, the TVS Diode will then act as a back-to-back Zener diode. This will basically consist of two Zener diodes connected in opposite directions, acting as a shock absorber for the overvoltage event. This is why the JANTX 1N6461 has a reverse voltage stand-off requirement. After the overvoltage event passes, the TVS diode will automatically reset and be ready for the next surge event.

Advantages of using the JANTX 1N6461 TVS Diode include a wide operating voltage range of 5V to 25V, peak pulse power rating of 400W, a reverse voltage stand-off of up to 5V, and a clamping voltage of 25V. This makes it ideal for applications in automotive, aerospace, consumer, industrial, and telecom applications. Furthermore, it has extremely low-leakage current and a low clamping ratio, which helps to prevent secondary surges.

The JANTX 1N6461 TVS Diode is the ideal solution for protecting circuits from overvoltage transients. Its wide operating voltage range, high peak pulse power rating, low clamping voltage, and low leakage current make it a reliable and effective device for protecting sensitive components from voltage surges in automotive, aerospace, consumer, industrial, and telecom applications.

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