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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
Flip Electronics ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
2,287 pcs
On Request
2287 pcs On Request 1 On Request On Request 20+ On Request On Request
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1N4731A 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
Package / Case
Power
Power Dissipation
Supplier Device Package
Termination Style
Tolerance
Voltage
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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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