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1N4742A-T50A Zener diode with 12V nominal voltage, 1W power dissipation, and ±5% tolerance. Packaged in DO-41 through-hole case.
Mfr Part #:

1N4742A-T50A

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 12V nominal voltage, 1W power dissipation, and ±5% tolerance. Packaged in DO-41 through-hole case.
Total Stock: 69,000 pcs

1N4742A-T50A Available from 1 distributors

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69,000 pcs
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1N4742A-T50A 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
Tolerance
Voltage
Voltage - Zener (Nom) (Vz)

1N4742A-T50A Description

Short technical summary and product information.

The 1N4742A-T50A is a Zener diode from ON Semiconductor designed for voltage regulation and overvoltage protection applications. It provides a nominal Zener voltage of 12V with a tolerance of ±5% and a maximum power dissipation of 1W. The device features a maximum impedance of 9Ω at the Zener current and a reverse leakage current of 5µA at 9.1V. It operates over a wide temperature range from -65°C to 200°C, making it suitable for harsh environments. The diode is housed in a DO-204AL (DO-41) axial-lead through-hole package, allowing for easy mounting on PCBs.

1N4742A-T50A Quick Information

Product Type: Zener Diode
Canonical Name: 1N4742A-T50A Zener Diode 12V 1W DO-41
Subcategory: Single Zener Diodes

1N4742A-T50A Compliance

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

1N4742A-T50A Features

  • 12V nominal Zener voltage with ±5% tolerance.
  • 1W maximum power dissipation.
  • 9Ω maximum impedance at Zener current.
  • Through-hole mounting in DO-41 package.
  • Operating temperature range from -65°C to 200°C.

1N4742A-T50A Applications

  • Voltage regulation in power supplies.
  • Overvoltage protection circuits.
  • Reference voltage generation.
  • Clamping and limiting applications.

1N4742A-T50A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the nominal Zener voltage of the 1N4742A-T50A?

The nominal Zener voltage is 12V.

What is the tolerance of this Zener diode?

The tolerance is ±5%.

What is the maximum power dissipation?

The maximum power dissipation is 1W.

What is the impedance of this Zener diode?

The maximum impedance (Zzt) is 9Ω.

What is the reverse leakage current?

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

What is the operating temperature range?

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

What package is the 1N4742A-T50A available in?

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

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