BY252P-E3/54

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	400V
Current - Average Rectified (Io):	3A
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 3A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr):	3µs
Current - Reverse Leakage @ Vr:	5µA @ 400V
Capacitance @ Vr, F:	40pF @ 4V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-201AD, Axial
Supplier Device Package:	DO-201AD
Operating Temperature - Junction:	-55°C ~ 150°C

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Introduction
BY252P-E3/54 is a general purpose, standard parameter, single-phase bridge rectifier. It contains a silicon diode array in a surface mount package and is used for applications that require low cost and fast conversion of alternating current (AC) to direct current (DC). The device\'s design is based on standard diode arrays which provide the best trade-offs between low on-state voltage drop, high-speed rectification, and efficiency. BY252P-E3/54 should not be used in circuits which require high temperature operations or high frequency rectification.

Application Fields
BY252P-E3/54 can be used in a wide range of different applications including:
- Lighting systems (including LED lighting)
- Small power conversion systems
- UPS systems
- Switch-mode power supplies
- Traveling wave tube (TWT) amplifiers
- Intermittent or continuous charging systems
- High voltage power supplies
- Battery chargers

BY252P-E3/54 is also suitable for use in low-voltage, low-power DC/DC converters. It has a low on-state voltage drop, so it uses less power in conduction mode and has higher efficiency than larger rectifying bridges. In addition, the fast turn-on and turn-off characteristics of BY252P-E3/54 make it ideal for high frequency DC/DC converters and switch-mode power supplies.

Working Principle
The working principle of BY252P-E3/54 is based on the physical properties of the P-type and N-type semiconductor materials. When voltage is applied across a P-N junction, electrons from the N-type material will flow to the P-type material and holes from the P-type material will flow to the N-type material, resulting in a flow of current. BY252P-E3/54 contains four such PN junctions connected in a bridge configuration to form a full-wave bridge rectifier. As AC current is applied to the bridge circuit, the four diodes alternate their roles in conducting current depending on the polarity of the applied voltage.

When the forward voltage across the diodes is greater than the forward conduction threshold (Vf), the diode is said to be forward-biased and the current starts to flow. When the voltage across the diodes is equal to zero, the diode is said to be reverse-biased and the current stops. BY252P-E3/54 allows current to pass only in one direction, thus making it a full-wave rectifying device. The device\'s terminals can also be wired in parallel for higher rated current.

Conclusion
BY252P-E3/54 is a versatile, low cost, and fast conversion single-phase bridge rectifier. It has a low on-state voltage drop and can operate at high frequencies, making it suitable for a variety of applications including lighting systems, power supplies, UPS systems, and more. The principles of operation is based on the PN junction of semiconductor materials and the alternation of currents flow in the four diodes that make up the device.

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