DB104

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Diode Type:	Single Phase
Technology:	Standard
Voltage - Peak Reverse (Max):	400V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 1A
Current - Reverse Leakage @ Vr:	10µA @ 400V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	4-EDIP (0.321", 8.15mm)
Supplier Device Package:	DB-1
Base Part Number:	DB104

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Diodes - Bridge Rectifiers: DB104 Application Field and Working Principle

Bridge rectifiers are an essential component of nearly all electronic circuits. They are used to convert alternating current (AC) to direct current (DC). A bridge rectifier is simply an arrangement of four diodes in a bridge configuration, allowing both positive and negative half cycles of a AC wave form to be rectified to DC. The DB104 is a bridge rectifier diode array and is also known as four-diode bridge.

Main Application of DB104

The primary application of the DB104 four-diode bridge is for converting AC input to DC output. It is mainly used for power supplies, especially in the switching power supplies in personal computer equipment, as the isolation and rectification of the AC source and to provide a regulated DC voltage source. The DB104 bridge rectifier can also be used for various output current applications, such as industrial and commercial lighting, home appliances, and automotive electrical. Moreover, the bridge rectifier can also be utilized in audio amplifiers as well as in heaters and blowers.

Working Principle of DB104

The DB104 four-diode bridge rectifier contains two positive, two negative, and a common-anode terminal pin. It is a symmetric rectifier, which means the two positive and two negative rectifier diodes are connected in the same configuration. This arrangement allows AC to be transformed into DC.When AC input current is applied to the bridge, it is broken into two halves. The negative half-cycle current, from point A to C, flows through the two negative diodes, and the current from point B to D, the positive half-cycle current, flows through both of the positive diodes of the bridge. Thus, the two halves of the AC supply are rectified separately. When these two circuits are combined, a full-wave rectified output DC voltage is obtained which is the average value of both the active and the passive period of the AC cycle.

Advantages of the DB104 Bridge Rectifier

The DB104 bridge rectifier offers a number of advantages to its users. It is compact in size, with a low height and width, making it more suitable for use in space-restricted areas. Moreover, the absence of a center-tap terminal simplifies the wiring process and saves time and effort. As it supports both positive and negative half cycles, the output power can be increased with the help of a transformer. Lastly, this rectifier has low forward voltage drop, low surge capability, low noise, and excellent thermal stability.

Conclusion

The DB104 bridge rectifier is a versatile component for use in different applications such as DC infrastructures, H-bridge circuit, and oscillator circuits. It offers several advantages such as small size, low forward voltage drop, low surge capability, low noise, and excellent thermal stability. Its working principle is also quite simple as it uses the arrangement of four diodes in a bridge configuration to rectify the incoming AC signal into DC signal.

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