1N5821G Schottky barrier rectifier rated for 30V reverse voltage and 3A forward current in an axial lead DO-201AD package.
Mfr Part #:

1N5821G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Schottky barrier rectifier rated for 30V reverse voltage and 3A forward current in an axial lead DO-201AD package.
Total Stock: 400 pcs

1N5821G Available from 1 distributor

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1N5821G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current - Average Rectified (Io)
Current - Non Repetitive Surge
Diode Type
Lead Style
Mounting Type
Operating Temperature
Operating Temperature - Junction
Package / Case
Speed
Supplier Device Package
Technology
Thermal Resistance Junction-to-Ambient
Voltage
Voltage - DC Reverse (Vr) (Max)
Voltage - Forward (Vf) (Max) @ If

1N5821G Description

Short technical summary and product information.

The 1N5821G is a Schottky barrier rectifier diode from onsemi, designed for low-voltage, high-frequency applications. It features a maximum DC blocking voltage of 30V and an average rectified current of 3A. The forward voltage drop is typically 500 mV at 3A, enabling low power loss and high efficiency. The device offers fast switching with a recovery time under 500 ns and can handle non-repetitive surge currents up to 80A. It is housed in an axial lead DO-201AD (DO-201AA, DO-27) package suitable for through-hole mounting. The operating junction temperature range is -65°C to 125°C, with a thermal resistance of 28°C/W junction-to-ambient. This diode is ideal for use in freewheeling diodes, polarity protection, and output rectification in switch-mode power supplies.

1N5821G Quick Information

Product Type: Schottky Rectifier Diode
Series: 1N5821
Canonical Name: 1N5821G Schottky Barrier Rectifier
Subcategory: Single Diode

1N5821G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

1N5821G Features

  • Schottky barrier for low forward voltage.
  • Rated for 30V reverse voltage and 3A current.
  • Fast switching with recovery under 500 ns.
  • Handles 80A non-repetitive surge current.
  • Axial lead DO-201AD through-hole package.

1N5821G Applications

  • Low-voltage high-frequency inverter rectification.
  • Freewheeling diode in inductive circuits.
  • Polarity protection for DC power supplies.
  • Output rectifier in switch-mode power supplies.

1N5821G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the 1N5821G?

The maximum DC blocking voltage is 30V.

What is the forward current rating?

The average rectified forward current is 3A.

What is the forward voltage drop at rated current?

The forward voltage drop is 500 mV at 3A.

What package does the 1N5821G come in?

It is available in a DO-201AA, DO-27, Axial through-hole package.

What is the operating temperature range?

The junction operating temperature range is -65°C to 125°C.

What is the surge current capability?

The non-repetitive peak surge current is 80A.

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