AU2PJHM3_A/I vs AR3PKHM3_A/I

Part Number	AU2PJHM3_A/I	AR3PKHM3_A/I
Category	Diodes - Rectifiers - Single	Diodes - Rectifiers - Single
Manufacturer	Vishay Semiconductor - Diodes Division	Vishay Semiconductor - Diodes Division
Description	DIODE AVALANCHE 600V 1.6A TO277A	DIODE AVALANCHE 800V 1.6A TO277A
Package	Tape & Reel (TR)	Tape & Reel (TR)
Series	Automotive, AEC-Q101, eSMP®	Automotive, AEC-Q101, eSMP®
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)
Diode Type	Avalanche	Avalanche
Current - Average Rectified (Io)	1.6A	1.6A
Voltage - Forward (Vf) (Max) @ If	1.9 V @ 2 A	1.9 V @ 3 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V	10 µA @ 800 V
Capacitance @ Vr, F	42pF @ 4V, 1MHz	34pF @ 4V, 1MHz
Voltage - DC Reverse (Vr) (Max)	600 V	800 V
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	75 ns	120 ns
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C

1. What are the common applications of a single rectifier diode?

They are commonly used in power circuits, chargers, AC to DC converters, motor drives, circuit protection, and other electronic devices to convert AC power to DC power or protect circuits from reverse current.
2. How to identify the polarity of a single rectifier diode?

Rectifying diodes usually have polarity markings, with the positive (anode) of the diode being "+" and the negative (cathode) being "-". On the packaging of diodes, there is usually a circular mark on the cathode side indicating the direction of the diode.
3. How to determine if the rectifier diode is damaged?

Use a multimeter to measure the forward and reverse resistance of a diode. If the diode exhibits low impedance or high impedance in both directions, it may have been damaged. Under normal circumstances, there should be low impedance when conducting in the forward direction, and high impedance when conducting in the reverse direction.
4. What are the packaging types of rectifier diodes?

There are various packaging types for rectifier diodes, including axial pin packaging (such as DO-41), surface mount packaging (such as SMA, SMB), and high-power packaging (such as TO-220). When selecting, the appropriate packaging should be chosen based on the application's heat dissipation requirements and installation method.