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1N4749A 1N4749A is a 24V Zener diode rated for 1W power dissipation with ±5% tolerance, housed in a DO-41 axial lead package.
Mfr Part #:

1N4749A

Available from 7 distributors
Mfr Name: On Semiconductor
On Semiconductor
1N4749A is a 24V Zener diode rated for 1W power dissipation with ±5% tolerance, housed in a DO-41 axial lead package.
Total Stock: 65,978 pcs

1N4749A Available from 7 distributors

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1N4749A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current - Reverse Leakage @ Vr
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Package / Case
Power
Power - Max
Supplier Device Package
Tape & Reel
Tolerance
Voltage
Voltage - Zener (Nom) (Vz)

1N4749A Description

Short technical summary and product information.

The 1N4749A is a Zener diode from On Semiconductor designed for voltage regulation applications. It provides a nominal Zener voltage of 24V with a tolerance of ±5%, ensuring stable reference voltage in circuits. The diode can dissipate up to 1W of power, making it suitable for moderate power regulation tasks.

 

Electrical characteristics include a maximum impedance of 25Ω at the Zener test current and a reverse leakage current of 5µA at 18.2V. The device operates over a wide temperature range from -65°C to 200°C, allowing use in harsh environments.

 

The 1N4749A is offered in a DO-204AL (DO-41) axial lead package, designed for through-hole mounting. This package is widely used and easy to handle in prototyping and production.

1N4749A Quick Information

Product Type: Zener Diode
Canonical Name: 1N4749A Zener Diode
Subcategory: Single Zener Diode

1N4749A Compliance

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

1N4749A Features

  • 24V nominal Zener voltage with ±5% tolerance.
  • 1W maximum power dissipation rating.
  • 25Ω maximum impedance at test current.
  • Wide operating temperature range -65°C to 200°C.
  • DO-41 axial lead through-hole package.

1N4749A Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection and clamping applications.
  • Reference voltage generation in analog circuits.
  • General purpose Zener diode applications.

1N4749A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the nominal Zener voltage of the 1N4749A?

The nominal Zener voltage is 24V.

What is the power rating of the 1N4749A?

The maximum power dissipation is 1W.

What is the tolerance of the 1N4749A Zener voltage?

The tolerance is ±5%.

What package does the 1N4749A come in?

The 1N4749A is available in a DO-204AL (DO-41) axial lead through-hole package.

What is the operating temperature range?

The operating temperature range is -65°C to 200°C.

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