SFS1001GHMNG vs SFS1002GHMNG

Part Number	SFS1001GHMNG	SFS1002GHMNG
Category	Diodes - Rectifiers - Single	Diodes - Rectifiers - Single
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Description	DIODE GEN PURP 50V 10A TO263AB	DIODE GEN PURP 100V 10A TO263AB
Package	Tape & Reel (TR)	Tape & Reel (TR)
Series	Automotive, AEC-Q101	Automotive, AEC-Q101
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device Package	TO-263AB (D²PAK)	TO-263AB (D²PAK)
Diode Type	Standard	Standard
Current - Average Rectified (Io)	10A	10A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 5 A	975 mV @ 5 A
Current - Reverse Leakage @ Vr	1 µA @ 50 V	1 µA @ 100 V
Capacitance @ Vr, F	70pF @ 4V, 1MHz	70pF @ 4V, 1MHz
Voltage - DC Reverse (Vr) (Max)	50 V	100 V
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns	35 ns
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C

1. What is forward voltage drop?

Forward voltage drop refers to the voltage drop generated when the current passes through a diode when it is conducting. The forward voltage drop of silicon rectifier diodes is usually around 0.7V, while the forward voltage drop of Schottky diodes is usually lower, between 0.2V and 0.3V.
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.