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1N4746ATR The 1N4746ATR is an 18V Zener diode with 1W power dissipation and ±5% tolerance, in a through-hole DO-41 package.
Mfr Part #:

1N4746ATR

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N4746ATR is an 18V Zener diode with 1W power dissipation and ±5% tolerance, in a through-hole DO-41 package.
Total Stock: 78,458 pcs

1N4746ATR Available from 3 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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73,020 pcs
73020 pcs On Request 1 On Request On Request On Request On Request On Request
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2,898 pcs
2898 pcs On Request 1 On Request On Request On Request On Request On Request
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2,540 pcs
2540 pcs On Request 1 On Request On Request On Request On Request On Request

1N4746ATR Specifications Quick View

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

1N4746ATR Description

Short technical summary and product information.

The 1N4746ATR from On Semiconductor is a through-hole Zener diode designed for voltage regulation and protection circuits. It provides a nominal Zener voltage of 18V with a tolerance of ±5%, ensuring stable and predictable operation.

 

With a power dissipation rating of 1W, this diode can handle moderate power levels in low-voltage applications. The device features a maximum impedance (Zzt) of 20Ω, and a low reverse leakage current of 5µA at 13.7V. Its operating temperature range spans -65°C to 200°C, making it suitable for demanding environments.

 

Packaged in a DO-204AL (DO-41) axial-lead package, the 1N4746ATR supports through-hole mounting for easy integration into PCB designs. This component is ideal for general-purpose voltage stabilization, overvoltage clamping, and reference voltage generation.

1N4746ATR Quick Information

Product Type: Zener Diode
Canonical Name: Zener Diode 18V 1W DO-41
Subcategory: Zener - Single

1N4746ATR Compliance

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

1N4746ATR Features

  • 18V Zener voltage with ±5% tolerance.
  • 1W power dissipation rating.
  • Through-hole DO-41 package.
  • Operating temperature -65°C to 200°C.
  • Low reverse leakage current: 5µA at 13.7V.

1N4746ATR Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection applications.
  • Reference voltage source for comparators.
  • General purpose clamping circuits.

1N4746ATR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N4746ATR?

The Zener voltage is 18V.

What is the power dissipation rating?

1W.

What is the tolerance of the Zener voltage?

±5%.

What package does the 1N4746ATR come in?

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

What is the operating temperature range?

-65°C to 200°C.

What is the reverse leakage current?

5µA at 13.7V.

What is the mounting type?

Through hole.

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