DB103-G

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Single Phase
Technology:	Standard
Voltage - Peak Reverse (Max):	200V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 1A
Current - Reverse Leakage @ Vr:	10µA @ 200V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	4-EDIP (0.321", 8.15mm)
Supplier Device Package:	DB
Base Part Number:	DB103

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Diodes - Bridge Rectifiers DB103-G Application Field and Working Principle

Bridge rectifiers are becoming increasingly popular as a reliable and efficient means of providing general-purpose power rectification. The DB103-G is a bridge rectifier that comes in a 3-pin SIP (Single In-Line Package) format, with a voltage rating of up to 1000 volts and a current rating of up to 1A (Ampere). It is used mainly in mains, switched-mode and DC/DC power supplies, but can also be used for many other power rectification applications.

Background of DB103-G

The DB103-G is one of the many rectifier types available from Diodes. Among the features that make this a popular choice for certain applications are its superior thermal characteristics and its small physical size. The package is only 8mm long and just over 3mm wide and being lead-free, this rectifier is RoHS (Restriction of Hazardous Substances) compliant. The DB103-G is also designed for high-frequency switching power supplies where its low conduction losses and high-speed switching performance can provide large cost savings over traditional rectifier designs.

Application Field

The DB103-G is mainly used in mains, switched-mode and DC/DC power supplies and UPS systems and is ideal for applications such as electric chargers and DC/DC converters. It is also used in medical and medical imaging systems, computer peripherals, meters, UPS systems and other power conversion designs.Given its high efficiency, low conduction losses and superb thermal characteristics, the DB103-G is suitable for applications requiring an energy conversion efficiency of up to 86%.

Working Principle

The DB103-G bridge rectifier is made up of four diodes arranged in a bridge configuration and an SIP-3 package. The two positive AC inputs are connected to opposite corners of the bridge and the two negative inputs are connected to the other two corners. The positive and negative outputs are then connected to the two remaining corners.When an alternating current is applied to the two positive inputs of the bridge rectifier, current flows in the top diode and out of the bottom diode. When the current reverses, the diagonally opposite diodes switch on and the current flow is reversed. In this way, a full-wave rectified output can be obtained from the two output terminals.

Advantages

The DB103-G is a bridge rectifier with a voltage rating of up to 1000 volts and a current rating of up to 1A. It has a number of advantages compared to other types of rectifiers.Unlike non-bridge rectifiers, the DB103-G has a much faster switching speed and is less susceptible to noise and unwanted signals as it has no filtering or smoothing circuits within the rectifier itself. Additionally, the DB103-G has a much lower conducted EMI (electromagnetic interference) level than traditional rectifiers, making it suitable for use in DC/DC converters and UPS systems.The bridge rectifier also has significantly higher efficiency than other available rectifiers and the smaller SIP-3 package offers great thermal performance and increased mounting flexibility.

Conclusion

The DB103-G bridge rectifier is a high-performance solution for power rectification problems in mains, switched-mode and DC/DC power supplies, electric chargers and UPS systems. Its features include a high efficiency of up to 86%, high-speed switching performance and low conduction losses for improved performance. Additionally, it is RoHS compliant, has a low conducted EMI level and its small size offers increased mounting flexibility.

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