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1N4742ATR Zener diode with 12V nominal zener voltage, 1W power dissipation, ±5% tolerance, in DO-204AL (DO-41) axial lead through-hole package.
Mfr Part #:

1N4742ATR

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 12V nominal zener voltage, 1W power dissipation, ±5% tolerance, in DO-204AL (DO-41) axial lead through-hole package.
Total Stock: 18,818 pcs

1N4742ATR Available from 4 distributors

Authorised
Non-Authorised

1N4742ATR Specifications Quick View

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

1N4742ATR Description

Short technical summary and product information.

The 1N4742ATR is a Zener diode from ON Semiconductor designed for voltage regulation and reference applications. It provides a nominal zener voltage of 12 V with a tolerance of ±5%. The device can dissipate up to 1 W of power, making it suitable for general-purpose voltage clamping and regulation tasks.

 

The part features a maximum impedance (Zzt) of 9 Ω at the test current. Maximum leakage current is 5 µA at 9.1 V reverse voltage. The diode operates over a wide temperature range from -65°C to 200°C, allowing use in demanding environments.

 

The 1N4742ATR is supplied in a DO-204AL (DO-41) axial lead package designed for through-hole mounting. The package body is hermetically sealed and compatible with standard wave soldering processes.

1N4742ATR Quick Information

Product Type: Zener Diode
Canonical Name: 1N4742ATR Zener Diode 12V 1W DO-204AL (DO-41) Axial
Subcategory: Single Zener Diode

1N4742ATR Compliance

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

1N4742ATR Features

  • 12V nominal zener voltage with ±5% tolerance.
  • 1W power dissipation capability.
  • Maximum impedance (Zzt) of 9 Ω.
  • Leakage current of 5 µA at 9.1 V reverse voltage.
  • Operating temperature range -65°C to 200°C.

1N4742ATR Applications

  • Voltage regulation in power supplies.
  • Voltage reference in analog circuits.
  • Overvoltage protection in low-voltage systems.
  • General purpose clamping and clamping circuits.

1N4742ATR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1N4742ATR?

The nominal zener voltage is 12 V with a tolerance of ±5%.

What is the maximum power dissipation?

The maximum power dissipation is 1 W.

What is the package type for this Zener diode?

The device is offered 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.

What is the reverse leakage current?

The maximum leakage current is 5 µA at a reverse voltage of 9.1 V.

What is the impedance (Zzt) of the 1N4742ATR?

The maximum impedance (Zzt) is 9 Ω.

Is this Zener diode through-hole or surface mount?

This is a through-hole device with axial leads.

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