SN83939N vs DB1P

Part Number	SN83939N	DB1P
Category	Diodes - Bridge Rectifiers	Diodes - Bridge Rectifiers
Manufacturer	Texas Instruments	Harris Corporation
Description	BIPOLAR GP LOGIC SCHOTTKY	BRIDGE RECTIFIER DIODE
Package	Tape & Reel (TR)	Tape & Reel (TR)
Series	-	-
Operating Temperature	-	-55°C ~ 150°C (TJ)
Mounting Type	-	Through Hole
Package / Case	-	4-EDIP (0.321\", 8.15mm)
Supplier Device Package	-	BR-4
Technology	-	Standard
Diode Type	-	Single Phase
Voltage - Peak Reverse (Max)	-	1 kV
Current - Average Rectified (Io)	-	1 A
Voltage - Forward (Vf) (Max) @ If	-	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	-	10 µA @ 1000 V

1. What is a bridge rectifier?

A bridge rectifier is a circuit composed of four diodes used to convert alternating current (AC) to direct current (DC). It is a common type of rectifier circuit widely used in devices such as power supplies and chargers.
2. What are the advantages of bridge rectifier compared to single diode rectifier?

Bridge rectifier is more efficient than single diode (half wave) rectifier because it can use two and a half cycles of AC power, not just one and a half cycles, thereby improving the output power efficiency and stability.
3. How to choose a suitable bridge rectifier?

When choosing a bridge rectifier, the following factors need to be considered:

Current capacity: Select the appropriate rectification current capacity according to the load demand.

Voltage level: Ensure that the rectifier can withstand the maximum peak voltage of the input.

Forward voltage drop: The lower the forward voltage drop, the higher the efficiency.

Packaging form: Choose the packaging type that is suitable for the circuit board or heat dissipation requirements.
4. How to reduce the ripple voltage of bridge rectifier?

Ripple voltage can be reduced by adding filtering capacitors or using more complex filters (such as inductive filters) in the rectifier circuit, resulting in a smoother DC output.