V33ZC1

Varistor Voltage (Typ):	33V
Package / Case:	Disc 7mm
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 85°C (TA)
Capacitance @ Frequency:	1620pF @ 1MHz
Number of Circuits:	1
Energy:	1.2J
Current - Surge:	250A
Varistor Voltage (Max):	36.3V
Series:	ZC
Varistor Voltage (Min):	29.7V
Maximum DC Volts:	26V
Maximum AC Volts:	20V
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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The V33ZC1 is a triple terminal, metal-oxide varistor (TVS) device. Its working principle behind its application is that it can provide an extremely fast response and a high surge capability, often being used for over-voltage protection for sensitive electronic components.A Varistor or voltage-dependent resistor is a non-linear resistor that exhibits a voltage-dependent resistance, meaning the resistance of the device increases with a decrease in applied voltage. While a regular resistor has a constant resistance, the varistor can change its resistance depending on the applied voltage across its terminals.V33ZC1 is a well-known type of varistor and is popular for its low-cost and wide rated operation range from 4V to 1000V, it\'s an ideal over-voltage protection solution for low-voltage applications. It also features a relatively high current rating at up to 11 mmA 2s. In addition to this, it offers a high resistance to transient voltages and fast response, making it the perfect choice for over-voltage protection. The working principle of the V33ZC1 can be broken down into two main parts; capacitive action and resistive action. The capacitive action of the device is based on its dielectric material consisting of metal oxides, such as zinc oxide. When a transient voltage passes through the device, the metal oxide material of the device acts as a dielectric, causing the electrical charge to pass through the device capacitively. This action results in a moderately fast response from the device and allows it to effectively absorb the transient voltage. The resistive action is based on the series of diodes that make up the device. When a transient voltage is applied, the internal structure of the device is essentially that of an array of diodes that are connected in series. This structure creates a network of resistors that absorb the transient voltage. As the transient voltage increases, so does the voltage drop of the device, thus creating an effective way to protect against transient voltage spikes.In addition to providing over-voltage protection, the V33ZC1 is also capable of providing over-current and over-temperature protection. The over-current protection is based on the internal structure of the device, which includes a series of diodes. When an over-current condition is present, the diodes in the device will draw the excess current away from the protected circuit. The over-temperature protection is based on a thermally bimetallic strip that is embedded in the device. When the device reaches a certain temperature, the strip will mechanically actuate, thus disconnecting the protected circuit from the load.Overall, the V33ZC1 is an excellent choice for providing over-voltage protection for low-voltage applications. It is well-designed and offers a high degree of protection against transient voltages thanks to its capacitive and resistive combined action. In addition to this, the device also offers additional protection against over-current and over-temperature conditions.

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