1N5809US The 1N5809US is a 100V, 3A ultrafast recovery rectifier diode from Microchip Technology in a surface mount SQ-MELF package. It features a 30ns reverse recovery time and 875mV forward voltage at 4A.
Mfr Part #:

1N5809US

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The 1N5809US is a 100V, 3A ultrafast recovery rectifier diode from Microchip Technology in a surface mount SQ-MELF package. It features a 30ns reverse recovery time and 875mV forward voltage at 4A.
Total Stock: 193 pcs
$ Price Range: $8.04

1N5809US Available from 1 distributor

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1N5809US Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacitance @ Vr, F
Current
Forward Surge Current (IFSM)
Forward Voltage (Vf) (Max) @ If
Mounting Type
Operating Temperature
Reverse Recovery Time (trr)
Speed
Supplier Device Package
Tape & Reel
Technology
Thermal Resistance (Junction-to-End Cap)
Thermal Resistance Junction-to-Ambient
Voltage

1N5809US Description

Short technical summary and product information.

The 1N5809US is a military-qualified ultrafast recovery rectifier diode from Microchip Technology (formerly Microsemi). It is rated for a maximum reverse voltage of 100V and an average rectified current of 3A at 55°C ambient. The device offers a fast reverse recovery time of 30ns and a low forward voltage of 875mV at 4A, making it suitable for high-frequency switching applications.

 

This diode is housed in a hermetically sealed, void-less glass SQ-MELF package (B case) designed for surface mount assembly. It features a junction operating temperature range up to 175°C, a forward surge current capability of 125A, and typical thermal resistance of 6.5°C/W junction-to-case and 52°C/W junction-to-ambient. The technology is standard silicon with quadruple-layer passivation and internal Category 1 metallurgical bonds.

 

Typical applications include switching power supplies, military and aerospace electronics, and other high-reliability systems requiring extremely fast switching and low forward loss. The device is also available in commercial RoHS-compliant versions.

1N5809US Quick Information

Product Type: Rectifier Diode
Series: 1N5807US, 1N5809US, 1N5811US
Canonical Name: 1N5809US Ultrafast Recovery Rectifier Diode, 100V, 3A, SQ-MELF
Subcategory: Ultrafast Recovery Rectifier

1N5809US Compliance

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

1N5809US Estimated Pricing

Qty Low High
1+ $8.04 $8.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

1N5809US Features

  • 100V maximum reverse voltage rating.
  • 3A average rectified current at 55°C.
  • 30ns ultrafast reverse recovery time.
  • 875mV forward voltage at 4A.
  • Hermetically sealed SQ-MELF surface mount package.

1N5809US Applications

  • Switching power supply output rectification.
  • High-reliability military and aerospace systems.
  • Ultrafast switching circuits requiring low forward loss.
  • High surge current protection and rectification.

1N5809US FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the 1N5809US?

The maximum reverse voltage (Vr) is 100V.

What is the average rectified current rating of the 1N5809US?

The average rectified current (Io) is 3A at 55°C ambient.

What is the forward voltage of the 1N5809US?

The maximum forward voltage is 875mV at a forward current of 4A.

What is the reverse recovery time of the 1N5809US?

The maximum reverse recovery time (trr) is 30ns.

What package does the 1N5809US come in?

The 1N5809US is available in a surface mount SQ-MELF package (B case).

What is the operating junction temperature range of the 1N5809US?

The operating junction temperature range is -65°C to 175°C.

What is the forward surge current rating of the 1N5809US?

The maximum forward surge current (Ifsm) is 125A.

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