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1N4731A 1N4731A is a 4.3V Zener diode from On Semiconductor with 1W power dissipation, 5% tolerance, and DO-41 through-hole package.
Mfr Part #:

1N4731A

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
1N4731A is a 4.3V Zener diode from On Semiconductor with 1W power dissipation, 5% tolerance, and DO-41 through-hole package.
Total Stock: 7,287 pcs

1N4731A Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,287 pcs
2287 pcs On Request 1 On Request On Request 20+ On Request On Request

1N4731A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Non-Repetitive Peak Reverse Current
Operating Temperature
Package / Case
Power
Power Dissipation
Reverse Leakage Current
Supplier Device Package
Termination Style
Tolerance
Voltage
Zener Impedance (Zzk)
Zener Impedance (Zzt)
Zener Test Current
Zener Voltage

1N4731A Description

Short technical summary and product information.

The 1N4731A is a 4.3 V Zener diode from On Semiconductor's 1N4728A-1N4758A series, designed for voltage regulation applications. It offers a power dissipation of 1 W and a test current of 58 mA. The Zener impedance at test current is 9 Ω, and at knee is 400 Ω. The device features a reverse leakage current of 10 µA at 1 V. It can operate over a wide temperature range of -65°C to 200°C. The 1N4731A is housed in a DO-41 (DO-204AL) axial-lead through-hole package, suitable for general-purpose voltage regulation and clamping circuits.

1N4731A Quick Information

Product Type: Zener Diode
Series: 1N4728A-1N4758A
Canonical Name: 1N4731A Zener Diode
Subcategory: Single

1N4731A Compliance

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

1N4731A Features

  • Nominal zener voltage of 4.3 V.
  • Power dissipation rating of 1 W.
  • Tolerance of ±5%.
  • DO-41 through-hole package.
  • Wide operating temperature range -65°C to 200°C.

1N4731A Applications

  • Used in voltage regulation circuits.
  • Ideal for overvoltage protection.
  • Suitable for voltage reference applications.
  • Used in general purpose clamping circuits.

1N4731A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1N4731A?

The zener voltage is 4.3 V with a tolerance of ±5%.

What is the power dissipation rating?

The power dissipation is 1 W at lead temperature ≤50°C.

What is the operating temperature range?

-65°C to 200°C.

What is the package type?

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

What is the test current?

58 mA.

What is the Zener impedance at test current?

9 Ω.

What is the reverse leakage current?

10 µA at 1 V reverse voltage.

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