Product Summary
The 1N5821 is a schottky barrier rectifier. State–of–the–art geometry features chrome barrier metal, epitaxial construction with oxide passivation and metal overlap contact. Ideally suited for use as rectifiers in low–voltage, high–frequency inverters, free wheeling diodes, and polarity protection diodes.
Parametrics
1N5821 absolute maximum ratings: (1)Peak Repetitive Reverse Voltage: 30V; (2)Working Peak Reverse Voltage: 30V; (3)DC Blocking Voltage: 30V; (4)Non–Repetitive Peak Reverse Voltage VRSM: 36V; (5)RMS Reverse Voltage VR(RMS): 21V; (6)Average Rectified Forward Current (2)VR(equiv) 0.2 VR(dc), TL = 95°C IO: 3.0 A; (7)Ambient Temperature Rated VR(dc), PF(AV)= 0 RqJA = 28°C/W TA: 85°C; (8)Non–Repetitive Peak Surge Current (Surge applied at rated load conditions, half wave, single phase 60 Hz, TL = 75°C)IFSM: 80 (for one cycle)A; (9)Operating and Storage Junction Temperature Range (Reverse Voltage applied)TJ, Tstg: -65 to +125 °C; (10)Peak Operating Junction Temperature (Forward Current applied)TJ(pk): 150 °C.
Features
1N5821 features: (1)Case: Epoxy, Molded; (2)Weight: 1.1 gram (approximately); (3)Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable; (4)Lead and Mounting Surface Temperature for Soldering Purposes: 220°C Max. for 10 Seconds, 1/16, from case; (5)Shipped in plastic bags, 5,000 per bag; (6)Available Tape and Reeled, 1500 per reel, by adding a “RL’’ suffix to the part number; (7)Polarity: Cathode indicated by Polarity Band; (8)Marking: 1N5820, 1N5821, 1N5822.
Diagrams

| Image | Part No | Mfg | Description | ![]() |
Pricing (USD) |
Quantity | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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![]() 1N5821 |
![]() Fairchild Semiconductor |
![]() Schottky (Diodes & Rectifiers) Schottky Barrier |
![]() Data Sheet |
![]()
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![]() |
![]() 1N5821_Q |
![]() Fairchild Semiconductor |
![]() Schottky (Diodes & Rectifiers) Schottky Barrier |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() 1N5821-B |
![]() Rectron |
![]() Schottky (Diodes & Rectifiers) Vr/30V Io/3A BULK |
![]() Data Sheet |
![]()
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![]() |
![]() 1N5821-E3/4 |
![]() Vishay Semiconductors |
![]() Schottky (Diodes & Rectifiers) 30 Volt 3.0 Amp 80 Amp IFSM |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() 1N5821-E3/51 |
![]() Vishay Semiconductors |
![]() Schottky (Diodes & Rectifiers) Vr/30V Io/3A |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() 1N5821RL |
![]() STMicroelectronics |
![]() Schottky (Diodes & Rectifiers) Vr/30V Io/3A T/R |
![]() Data Sheet |
![]()
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![]() |
![]() 1N5821-TP |
![]() Micro Commercial Components (MCC) |
![]() Schottky (Diodes & Rectifiers) 3.0A 30V |
![]() Data Sheet |
![]()
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![]() |
![]() 1N5821US |
![]() Other |
![]() |
![]() Data Sheet |
![]() Negotiable |
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(China (Mainland))














