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1N4749ATR DIODE ZENER 24V 1W DO41. This 1N4749ATR zener diode from On Semiconductor provides a 24V regulation voltage with 1W power dissipation.
Mfr Part #:

1N4749ATR

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
DIODE ZENER 24V 1W DO41. This 1N4749ATR zener diode from On Semiconductor provides a 24V regulation voltage with 1W power dissipation.
Total Stock: 2,928 pcs

1N4749ATR Available from 1 distributor

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1N4749ATR Specifications Quick View

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

1N4749ATR Description

Short technical summary and product information.

The 1N4749ATR is a 24V Zener diode manufactured by On Semiconductor, designed for voltage regulation and reference applications. It offers a nominal zener voltage of 24V with a ±5% tolerance, ensuring precise voltage clamping. With a power dissipation rating of 1W, it can handle moderate power levels in through-hole designs.

 

This device features a maximum zener impedance of 25Ω at the test current, providing stable voltage regulation. The reverse leakage current is specified at 5µA maximum at 18.2V, ensuring low power loss in standby conditions. The diode is housed in a DO-204AL (DO-41) axial-leaded package, suitable for through-hole mounting on PCBs.

 

Operating over a wide temperature range of -65°C to 200°C, the 1N4749ATR is suitable for harsh environments. It is RoHS3 compliant and REACH unaffected, though these compliance claims are unverified. The part is commonly used in power supplies, voltage clamping, and reference circuits.

1N4749ATR Quick Information

Product Type: Zener Diode
Canonical Name: Zener Diode 24V 1W ±5% DO-41
Subcategory: Single Zener Diode

1N4749ATR Compliance

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

1N4749ATR Features

  • 24V zener voltage with ±5% tolerance.
  • 1W power dissipation rating.
  • DO-41 through-hole package.
  • Operates from -65°C to 200°C.
  • Low 5µA reverse leakage current.

1N4749ATR Applications

  • Used for voltage regulation circuits.
  • Ideal for voltage reference applications.
  • Suitable for power supply clamping.
  • Used in general-purpose diode protection.

1N4749ATR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1N4749ATR?

24V.

What is the tolerance of the zener voltage?

±5%.

What is the power dissipation rating?

1W.

What package is the 1N4749ATR available in?

DO-204AL (DO-41) axial through-hole package.

What is the operating temperature range?

-65°C to 200°C.

What is the zener impedance?

25Ω.

What is the reverse leakage current?

5µA at 18.2V.

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