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1N4449 The ST 1N4449 is a high-speed switching diode designed for fast switching applications. It features a peak reverse voltage of 100V and a maximum forward current of 200mA.
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1N4449

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Mfr Name: STMicroelectronics
STMicroelectronics
The ST 1N4449 is a high-speed switching diode designed for fast switching applications. It features a peak reverse voltage of 100V and a maximum forward current of 200mA.
✓ Total Stock: 159 pcs
$ Price Range: $0.99

1N4449 Available from 1 distributor

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1N4449 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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1N4449 Description

Short technical summary and product information.

The 1N4449 is a high-speed switching diode manufactured by ST. It is designed for applications requiring rapid switching speeds, with a maximum reverse recovery time of 4 ns. This diode offers a maximum reverse voltage of 75V and a peak reverse voltage of 100V, making it suitable for various signal processing and switching circuits.

 

The device has a maximum forward DC current of 200mA and a surge forward current capability of 2A at 1µs. Its power dissipation is rated at 500mW at 25°C ambient temperature. The maximum junction temperature is 200°C, with a storage temperature range from -65°C to +200°C.

 

Packaged in a DO-35 Glass Case, the 1N4449 is a through-hole component. Its mechanical data indicates a weight of approximately 0.13g. The diode capacitance is a maximum of 2pF at 1MHz and VR=0V.

 

This diode is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1. It is also noted as Pb/RoHS Free.

1N4449 Quick Information

Product Type: High Speed Switching Diode
Canonical Name: 1N4449 High Speed Switching Diode
Subcategory: TVS Diode

1N4449 Compliance

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

1N4449 Estimated Pricing

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1+ $0.99 $0.99

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

1N4449 Features

  • High switching speed: max. 4 ns
  • Peak reverse voltage: max. 100 V
  • Maximum forward DC current: 200 mA
  • DO-35 Glass Case package
  • Pb / RoHS Free

1N4449 Applications

  • Suitable for high-speed switching circuits.
  • Used in signal diode applications.
  • Ideal for transient voltage suppression.
  • Applicable in electronic protection devices.
  • Suitable for low current switching applications.

1N4449 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the peak reverse voltage of the 1N4449 diode?

The peak reverse voltage of the 1N4449 diode is a maximum of 100 V.

What is the maximum forward DC current for the 1N4449?

The maximum forward DC current for the 1N4449 is 200 mA.

What is the reverse recovery time of the 1N4449?

The reverse recovery time of the 1N4449 is a maximum of 4 ns.

What package type is the 1N4449 diode supplied in?

The 1N4449 diode is supplied in a DO-35 Glass Case.

Is the 1N4449 diode RoHS compliant?

The 1N4449 diode is RoHS3 Compliant.

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