V47ZT05P

Varistor Voltage (Typ):	47V
Package / Case:	Disc 5mm
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 85°C (TA)
Capacitance @ Frequency:	585pF @ 1MHz
Number of Circuits:	1
Energy:	0.40J
Current - Surge:	100A
Varistor Voltage (Max):	51.7V
Series:	ZT
Varistor Voltage (Min):	42.3V
Maximum DC Volts:	38V
Maximum AC Volts:	30V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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V47ZT05P Application Field and Working PrincipleTVS (Transient Voltage Suppression) devices, such as Varistors, MOVs (Metal Oxide Varistors), and Zener Diodes, are becoming increasingly important as the growing need to protect increasingly sophisticated electronic systems from transient over-voltage spikes or electrical surges. V47ZT05P is one device designed to fulfill this protective function. This article will explore the applications of V47ZT05P, and its associated working principle.The V47ZT05P is a compact transient voltage suppressor diode that is suitable for use in a wide variety of applications. In addition, V47ZT05P is typically designed to withstand 1000W peak pulse power at 10/1000μs waveform without breakdown. The device uses a combination of a Zener diode and a Metal Oxide Varistor (MOV) to set a nominal 8V clamping voltage. It is typically configured in a SOT23 package for surface mounting. The applications of V47ZT05P include protection for signal lines, power lines, and control circuits against transient over-voltages. The device also provides protection against over-voltage surges and electrostatic discharge (ESD), which is caused by lightning strikes and static electricity. It is also used to protect automotive circuits, computer systems, and other sensitive electronic components.The working principle of V47ZT05P is a combination of a Zener diode and a MOV. The Zener diode component is forward biased during normal operation, and operates by clipping positive and negative transients. This prevents further build up of voltage by clamping the voltage above and below a certain level. The MOV component is reverse biased during normal operation, and it absorbs wave energy caused by voltage surges. This helps prevent further voltage build-up and dissipates the current through an internal resistor.When the transient voltage is applied to the V47ZT05P, the Zener diode conducts and the negative transient is characterized by a semi-conducting diode. Then, the MOV dissipates the energy and current through the internal resistor, and the transient voltage is maintained to keep circuit voltages within the specified limits. Finally, the Zener diode quickly returns to its normal forward biased condition and the device holds the desired voltage-clamping level.In summary, V47ZT05P is a convenient and reliable TVS device that is suitable for use in a wide variety of applications, including protecting signal lines, power lines, and control circuits against transient over-voltages, over-voltage surges and electrostatic discharge. It combines the properties of a Zener diode and a MOV in order to limit the voltage of a circuit to a stable and desired level. This ensures that electronic systems are adequately protected from transients or other potentially damaging electrical events.

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