TV04A221J-HF Circuit Protection

Voltage - Clamping (Max) @ Ipp:	356V
Supplier Device Package:	SMA (DO-214AC)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	1.12A
Series:	--
Voltage - Breakdown (Min):	246V
Voltage - Reverse Standoff (Typ):	220V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TV04A221J-HF application field and working principle

TVS - Diodes (Transient Voltage Suppression Diodes) are specially designed diodes that are used to protect sensitive electronic circuits from electrical overstress (EOS). The device can absorb excessive voltage and current while providing a high degree of ESD (electro-static discharge) protection. The TV04A221J-HF is a transient voltage suppressor (TVS) device designed to protect electronic circuits from high voltage transients resulting from electrostatic discharge (ESD). The TV04A221J-HF is specially designed to meet the EIA-541 Class I ESD rating requirements. It is also compliant to the EIA-JEDEC Standard 22. It can withstand very high peak pulse power and has a fast response time for protection against electrostatic discharge and other transients. The TV04A221J-HF has an operating voltage range of 6V to 18V. It is a two-pin device that is available in surface mount or thru-hole packages. The device has a low ESR (equivalent series resistance) and can handle large currents. It can handle up to 1.2kW of peak pulse power with excellent clamping characteristics. The TV04A221J-HF is primarily used for the protection of I/O lines in microprocessor-based circuits. It can be used to protect video cards, motherboards, memory, and other circuits from the effects of ESD. The TV04A221J-HF can also be used on low voltage DC/DC converters and other power supplies. The device works by quickly firing its SCR element in response to an overvoltage event. When the voltage exceeds the avalanche voltage of the device, the SCR element is triggered and the excess voltage is diverted away from the protected circuit. The total clamping voltage of the device is determined by the breakdown voltage of the TV04A221J-HF and the impedance of the protected circuit. The TV04A221J-HF has an excellent peak pulse power capability, with a maximum peak pulse power rating of 1.2kW. It also has a fast response time, with a typical response time of less than 5ns. The device has a wide operating temperature range and is RoHS compliant. Overall, the TV04A221J-HF is a highly reliable and cost effective device that provides excellent protection against ESD and other transient voltage surges. It is an ideal choice for protecting sensitive electronic devices from overvoltage transients and electrostatic discharge.

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