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 Mounting Type Package Type Peak Reverse Repetitive Voltage Rectifier Type Diode Type Pin Count Maximum Forward Voltage Drop Length Number of Elements per Chip Diode Technology Width Height
RS Stock No. 640-4694
Mfr. Part No.RSX051VA-30TR
BrandROHM
HK$0.676
Each (In a Pack of 10)
units
Single 500mA Surface Mount TUMD 30V - Schottky 2 - - 1 Schottky - -
RS Stock No. 826-7661
Mfr. Part No.RB550VA-30TR
BrandROHM
HK$2.083
Each (In a Pack of 50)
units
Single 1A Surface Mount TUMD 30V - Schottky 2 520mV - 1 Schottky - -
RS Stock No. 700-2769
Mfr. Part No.DAN217T146
BrandROHM
HK$1.471
Each (In a Pack of 10)
units
Single 300mA Surface Mount SOD-123 80V Switching Silicon Junction 3 1.2V - 1 Silicon Junction - -
RS Stock No. 169-0445
Mfr. Part No.FMP1T148
BrandROHM
HK$1.072
Each (On a Reel of 3000)
units
Common Anode 80mA Surface Mount SC-74A 80V Switching Silicon Junction 5 900mV - 4 Silicon Junction - -
RS Stock No. 169-0486
Mfr. Part No.DAN217T146
BrandROHM
HK$0.436
Each (On a Reel of 3000)
units
Single 300mA Surface Mount SOD-123 80V Switching Silicon Junction 3 1.2V - 1 Silicon Junction - -
RS Stock No. 700-2551
Mfr. Part No.FMP1T148
BrandROHM
HK$3.192
Each (In a Pack of 5)
units
Common Anode 80mA Surface Mount SC-74A 80V Switching Silicon Junction 5 900mV - 4 Silicon Junction - -
RS Stock No. 700-2567
Mfr. Part No.IMN11T110
BrandROHM
HK$4.26
Each (In a Pack of 5)
units
2x Common Cathode Pair 100mA Surface Mount SOT-457 (SC-74) 80V Switching Silicon Junction 6 1.2V - - Silicon Junction - -
RS Stock No. 169-0482
Mfr. Part No.UMN1NTR
BrandROHM
HK$0.622
Each (On a Reel of 3000)
units
Common Cathode 25mA Surface Mount SOT-353 (SC-88A) 80V Switching Silicon Junction 5 900mV - 4 Silicon Junction - -
RS Stock No. 700-2747
Mfr. Part No.UMN1NTR
BrandROHM
HK$1.881
Each (In a Pack of 10)
units
Common Cathode 25mA Surface Mount SOT-353 (SC-88A) 80V Switching Silicon Junction 5 900mV - 4 Silicon Junction - -
RS Stock No. 168-1551
Mfr. Part No.RFN1L6STE25
BrandROHM
HK$2.229
Each (In a Pack of 50)
units
Single 800mA Surface Mount PMDS, SOD-106 600V Fast Recovery - 2 - - 1 Silicon Junction - -
RS Stock No. 177-9940
Mfr. Part No.RB706W-40TL
BrandROHM
HK$0.659
Each (On a Reel of 3000)
units
- 1mA Surface Mount EMD3, SC-75A, SOT-416 45V - Schottky 3 - - 2 Schottky - -
RS Stock No. 150-3535
Mfr. Part No.RB511VM-40TE-17
BrandROHM
HK$0.237
Each (In a Pack of 250)
units
Single 10mA Surface Mount SOD-323 40V - SiC Schottky 2 - - 1 - - -
RS Stock No. 177-9941
Mfr. Part No.RBR1LAM30ATR
BrandROHM
HK$0.57
Each (On a Reel of 3000)
units
Single 1A Surface Mount PMDTM, SOD-128 30V - Schottky 2 - - 1 Schottky - -
RS Stock No. 171-4041
Mfr. Part No.RFN20NS6STL
BrandROHM
HK$5.738
Each (On a Reel of 1000)
units
Single 20A Surface Mount LPDS, TO-263S 600V Fast Recovery - 2 + Tab 1.55V - 1 Silicon Junction - -
RS Stock No. 168-0405
Mfr. Part No.1SS400SMT2R
BrandROHM
HK$0.20
Each (On a Reel of 8000)
units
Single 225mA Surface Mount EMD, SC-79, SOD-523 90V Switching - 2 - - 1 - - -
RS Stock No. 171-3996
Mfr. Part No.RB095BM-40TL
BrandROHM
HK$2.916
Each (On a Reel of 2500)
units
- 6A Surface Mount SC-63, TO-252 45V - Schottky 2 + Tab 550mV - 2 Silicon Junction - -
RS Stock No. 171-4029
Mfr. Part No.RBQ15BM45ATL
BrandROHM
HK$3.718
Each (On a Reel of 2500)
units
- 15A Surface Mount SC-63, TO-252 45V - Schottky 2 + Tab 590mV - 2 Silicon Junction - -
RS Stock No. 146-7947
Mfr. Part No.SCS308APC9
BrandROHM
HK$27.63
Each (In a Tube of 50)
units
Common Anode 8A Through Hole TO-220ACP 650V Schottky Diode SiC Schottky 2 + Tab - - 1 Schottky - -
RS Stock No. 146-7855
Mfr. Part No.RB400VAM-50TR
BrandROHM
HK$0.395
Each (On a Reel of 3000)
units
Single 500mA Surface Mount SOD-323HE 50V - SiC Schottky 2 - - 1 - - -
RS Stock No. 168-0406
Mfr. Part No.DA204KT146
BrandROHM
HK$0.465
Each (On a Reel of 3000)
units
- 200mA Surface Mount SC-59, SMD, SOT-346 20V Switching - 3 - - 2 - - -