Rectifier Diodes & Schottky Diodes

What is a Rectifier Diode?
A rectifier diode main purpose is to rectify alternating currents. It's used to flow a current through a circuit in one direction, in contrast to elements such as resistors a rectifiers current has a non-linear relationship to the voltage across it. The diode will be forward bias when positive voltage is being applied and will do its best to operate as a short circuit and allow the current to flow through the diode freely. Its main task is to convert an alternating current (AC) into a direct current (DC) through the application of rectifier bridges. A rectifier diode can sometimes be used as a Schottky Rectifier.

What is a Schottky Diode?
A Schottky Diode is sometimes referred to as a Barrier Diode or a Hot Carrier Diode. The Schottky is a single type of electronic component which is a semiconductor. It has fast switching action with an accompanying low forward voltage drop, when current flows through the diode, a small voltage drop happens across the diode terminals.
A standard diode has a voltage drop between 0.6 and 1.7 volts whereas a Schottkys drop is between 0.15 and 0.45 volts. This lower voltage drop facilitates a high switching speed as well as improved system efficiency.

What are Schottky Diodes used for?
• They are used for the voltage clamping of applications, also as a preventative of transistor saturation. This is because they have a high current density,
• They can be used as rectifiers (in power supplies.
• A good element to use in applications that are sensitive and efficiency
• To prevent batteries from discharging
• Solar panels and grid connected systems

Why should I use a Schottky?
• They feature a low turn voltage between 0.15 and 0.45 volts
• A fast recovery time, resulting in a small amount of stored charge that can then be used for high speed switches.
• The low junction capacitance occupies a small space, after the results given from the wire point contact the silicon, the capacitance levels are also very small.
• Higher efficiency
• Integrated guard ring for stress protection

...
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Description Price Diode Configuration Maximum Continuous Forward Current Number of Elements per Chip Rectifier Type Peak Reverse Repetitive Voltage Mounting Type Package Type Diode Technology Diode Type Pin Count Maximum Forward Voltage Drop Length Width Height
RS Stock No. 171-4912
Mfr. Part No.RB081LAM-20TR
BrandROHM
HK$1.725
Each (In a Pack of 25)
units
Single 5A 1 - 25V Surface Mount PMDTM, SOD-128 Silicon Junction Schottky 2 450mV - - -
RS Stock No. 171-4874
Mfr. Part No.RB228NS100TL
BrandROHM
HK$7.083
Each (In a Pack of 10)
units
- 30A 2 - 110V Surface Mount LPDS, TO-263S Silicon Junction Schottky 2 + Tab 870mV - - -
RS Stock No. 918-9705
Mfr. Part No.VS-20ETS08-M3
BrandVishay
HK$12.309
Each (In a Tube of 50)
units
Single 20A 1 - 800V Through Hole TO-220AC Silicon Junction - 2 - - - -
RS Stock No. 121-6454
Mfr. Part No.NSR0140P2T5G
HK$0.51
Each (On a Reel of 8000)
units
Single 70mA 1 - 40V Surface Mount SOD-923 Schottky Schottky 2 350mV - - -
RS Stock No. 816-6833
Mfr. Part No.PMEG2020CPA,115
BrandNexperia
HK$1.713
Each (In a Pack of 20)
units
Common Cathode 2A 2 - 20V Surface Mount HUSON Schottky Schottky 3 420mV - - -
RS Stock No. 738-4774
Mfr. Part No.B340-13-F
HK$2.574
Each (In a Pack of 25)
units
Single 3A 1 - 40V Surface Mount DO-214AB (SMC) Schottky Schottky 2 500mV - - -
RS Stock No. 165-8889
Mfr. Part No.PMEG4020EP,115
BrandNexperia
HK$1.032
Each (On a Reel of 3000)
units
Single 2A 1 - 40V Surface Mount SOD-128 Schottky Schottky 2 490mV - - -
RS Stock No. 249-296
Mfr. Part No.STTH108A
HK$3.157
Each (In a Pack of 20)
units
Single 1A 1 Switching 800V Surface Mount DO-214AC (SMA) Silicon Junction Silicon Junction 2 1.65V - - -
RS Stock No. 169-9231
Mfr. Part No.SR10150 C0
HK$5.045
Each (In a Tube of 50)
units
Common Cathode 10A 2 - 150V Through Hole TO-220AB Schottky Schottky 3 - - - -
RS Stock No. 826-9907
Mfr. Part No.BAS1603WE6327HTSA1
BrandInfineon
HK$0.315
Each (On a Reel of 3000)
units
Single 250mA 1 - 85V Surface Mount SOD-323 Silicon Junction Silicon Junction 2 1.25V - - -
RS Stock No. 169-8976
Mfr. Part No.SS210 R4
HK$1.496
Each (On a Reel of 3000)
units
Single 2A 1 - 100V Surface Mount DO-214AA (SMB) Schottky Schottky 2 - - - -
RS Stock No. 180-8208
Mfr. Part No.BAT42W-E3-08
BrandVishay
HK$0.64
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 168-1409
Mfr. Part No.DA204UT106
BrandROHM
HK$1.452
Each (In a Pack of 100)
units
- 200mA 2 Switching 20V Surface Mount SC-70, SOD-323, UMD - - 3 - - - -
RS Stock No. 165-7082
Mfr. Part No.MCL103C-TR3
BrandVishay
HK$0.346
Each (On a Reel of 10000)
units
Single 200mA 1 - 20V Surface Mount MicroMELF Schottky Schottky 2 600mV - - -
RS Stock No. 145-4120
Mfr. Part No.MUR240G
HK$0.902
Each (In a Bag of 1000)
units
Single 2A 1 Switching 400V Through Hole DO-41 Silicon Junction Silicon Junction 2 1.3V - - -
RS Stock No. 880-5428
Mfr. Part No.STPS1H100AY
HK$1.957
Each (In a Pack of 25)
units
Single 1A 1 - 100V Surface Mount DO-214AC (SMA) Schottky Schottky 2 - - - -
RS Stock No. 183-5064
Mfr. Part No.SCS230KE2C
BrandROHM
HK$133.405
Each (In a Tube of 360)
units
- - - - - - - - - - - - - -
RS Stock No. 168-8926
Mfr. Part No.STTH812D
HK$9.457
Each (In a Tube of 50)
units
Single 8A 1 Fast Recovery 1200V Surface Mount TO-220AC Silicon Junction Silicon Junction 2 - - - -
RS Stock No. 153-2848
Mfr. Part No.PMEG2002AESF,315
BrandNexperia
HK$0.426
Each (On a Reel of 9000)
units
Single 200mA 1 Schottky Rectifier 20V Surface Mount DSN0603, SOD-962 Schottky Schottky 2 - - - -
RS Stock No. 781-5868
Mfr. Part No.MUR110RLG
HK$1.958
Each (In a Pack of 25)
units
Single 1A 1 Switching 100V Through Hole DO-41 Silicon Junction Silicon Junction 2 875mV - - -
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