SF4006-TAP

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Diode Type:	Avalanche
Voltage - DC Reverse (Vr) (Max):	800V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.7V @ 1A
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	75ns
Current - Reverse Leakage @ Vr:	5µA @ 800V
Capacitance @ Vr, F:	--
Mounting Type:	Through Hole
Package / Case:	SOD-57, Axial
Supplier Device Package:	SOD-57
Operating Temperature - Junction:	-55°C ~ 175°C

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Introduction

SF4006-TAP is a single-phase full-wave bridge rectifier diode. It is designed for use in modern high-frequency switching power supplies up to 300 amps. The SF4006-TAP features an ultrafast turn-on characteristic and operates with a low forward voltage drop, making it ideal for efficient switch mode power supplies.

Application fields

The SF4006-TAP is used in a variety of applications. For example, it is used in automotive and industrial electronics, back-up power supplies, computer systems, and telecom and network applications. Additionally, this diode can be used for input rectification in Consumer Power Supplies, Multi-output Power Supplies, DC/DC Converters and SMPSs, as well as motor drives, switching regulators and PFC circuits. The SF4006-TAP has a reverse recovery time of less than 15 nanoseconds, so it recovers quickly and can easily handle high surge currents with minimal ripple voltage. It has high-frequency switching frequency characteristics and a low forward voltage drop, making it an ideal choice for efficient power supplies.

Working Principle

The SF4006-TAP is an interconnecting device that operates as a full-wave rectifier. The device consists of four diodes in a bridge configuration. It operates mainly in four steps, as follows:

• Step 1: The input voltage is applied across the bridge rectifier via its two input terminals, and the diagonally adjacent diodes act as a forward-biased diode pair.
• Step 2: As the input voltage is increasing, the forward current increases as well.
• Step 3: When the input voltage reaches its peak, the diagonally adjacent diodes become reverse-biased, meaning they are not conducting the current.
• Step 4: As the input voltage decreases, the forward-biased diode pair becomes reverse-biased, causing the current to reverse-flow through the other two diodes and out the other two terminals of the bridge.

The diodes in the SF4006-TAP are configured such that the opposite terminal voltage of the four diodes are out of phase with each other and the output voltage is in phase with the input voltage. This allows the device to act as a full-wave rectifier, meaning that it is able to convert both halves of the input AC voltage waveform into a single DC output.

Advantages

The SF4006-TAP has many advantages. It is a highly efficient device, as it has a low forward voltage drop, meaning less energy is wasted in the rectification process. Additionally, this device has a very fast switching characteristic, with a reverse recovery time of less than 15 nanoseconds, meaning current levels can be switched quickly with minimal ripple voltage. This makes the SF4006-TAP ideal for use in switch mode power supplies. Additionally, due to its low forward voltage drop and high switching frequency characteristics, this diode can be used for a variety of applications, from back-up power supplies to DC/DC converters.

Conclusion

The SF4006-TAP is a single-phase full-wave bridge rectifier diode. It has a low forward voltage drop and an ultrafast turn-on characteristic, making it an efficient, reliable and fast device. Additionally, due to its wide range of applications, it can be used for input rectification in a variety of devices, such as switch mode power supplies, DC/DC converters, PFC circuits and motor drives.

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