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1N4744A Zener diode with 15V nominal voltage, 1W power rating, and ±5% tolerance. Through-hole DO-41 package for general purpose voltage regulation.
Mfr Part #:

1N4744A

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 15V nominal voltage, 1W power rating, and ±5% tolerance. Through-hole DO-41 package for general purpose voltage regulation.
Total Stock: 102 pcs

1N4744A Available from 3 distributors

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Non-Authorised

1N4744A 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
Power
Power Dissipation
Reverse Leakage Current
SVHC Present
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Voltage
Zener Impedance (Zzt)
Zener Voltage
Zener Voltage Tolerance

1N4744A Description

Short technical summary and product information.

The 1N4744A is a 15V Zener diode from On Semiconductor designed for voltage regulation applications. It features a nominal Zener voltage of 15V with a tolerance of ±5% and a maximum power dissipation of 1W. The device offers a Zener impedance (Zzt) of 14Ω and a reverse leakage current of 5µA at 11.4V.

 

The diode operates over a wide temperature range from -65°C to 200°C, making it suitable for demanding environments. It is packaged in a through-hole DO-41 (DO-204AL) axial leaded package, compatible with standard PCB mounting. This component is commonly used in shunt voltage regulation, overvoltage protection, and voltage reference circuits where stable 15V operation is required.

1N4744A Quick Information

Product Type: Zener Diode
Canonical Name: 1N4744A Zener Diode
Subcategory: Single Zener Diode

1N4744A Compliance

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

1N4744A Features

  • 15V nominal Zener voltage, ±5% tolerance.
  • 1W maximum power dissipation rating.
  • Low 14Ω Zener impedance (Zzt).
  • Wide operating temperature -65°C to 200°C.
  • Through-hole DO-41 axial leaded package.

1N4744A Applications

  • Shunt voltage regulation in power supplies.
  • Overvoltage protection in low-power circuits.
  • Voltage reference for analog and mixed-signal designs.

1N4744A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N4744A?

The Zener voltage is 15V with a tolerance of ±5%.

What is the power rating of this Zener diode?

The maximum power dissipation is 1W.

What package does the 1N4744A come in?

It is available in a through-hole DO-41 (DO-204AL) axial leaded package.

What is the operating temperature range?

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

What is the reverse leakage current?

Reverse leakage current is 5µA at 11.4V reverse voltage.

What is the Zener impedance?

The Zener impedance (Zzt) is 14Ω.

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