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1N4730A 1N4730A is a 3.9V Zener Diode with 1W power dissipation and ±5% tolerance, housed in a DO-41 axial lead package.
Mfr Part #:

1N4730A

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
1N4730A is a 3.9V Zener Diode with 1W power dissipation and ±5% tolerance, housed in a DO-41 axial lead package.
Total Stock: 3,750 pcs

1N4730A Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,940 pcs
2940 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
750 pcs
750 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
60 pcs
60 pcs On Request 1 On Request On Request On Request On Request On Request

1N4730A Specifications Quick View

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

1N4730A Description

Short technical summary and product information.

The 1N4730A is a 3.9V Zener Diode from On Semiconductor, part of the 1N4728A-1N4758A series. It is designed for voltage regulation and clamping applications requiring a precise 3.9V reference.

 

Key electrical specifications include a nominal zener voltage of 3.9V with a tolerance of ±5%, a test current of 64 mA, and a maximum zener impedance of 9 Ω at the test current. The device can dissipate up to 1W of power at lead temperatures up to 50°C, with a derating factor of 6.67 mW/°C above that. The maximum leakage current is 50 µA at a reverse voltage of 1V.

 

The diode is packaged in a DO-41 (DO-204AL) glass axial lead case, suitable for through-hole mounting. It has an operating temperature range of -65°C to +200°C.

1N4730A Quick Information

Product Type: Zener Diode
Series: 1N4730A
Canonical Name: 1N4730A Zener Diode 3.9V 1W ±5% DO-41
Subcategory: Single Zener Diode

1N4730A Compliance

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

1N4730A Features

  • Nominal zener voltage of 3.9 volts.
  • Power dissipation rating of 1 watt.
  • ±5% zener voltage tolerance.
  • DO-41 axial lead glass package.
  • Operating temperature range -65°C to 200°C.

1N4730A Applications

  • Voltage regulation in low power circuits.
  • Overvoltage clamping and protection.
  • Reference voltage generation for analog circuits.

1N4730A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the nominal zener voltage of the 1N4730A?

The nominal zener voltage is 3.9 V.

What is the power dissipation of the 1N4730A?

The power dissipation is 1 W at lead temperatures up to 50°C, derated above 50°C at 6.67 mW/°C.

What package is the 1N4730A available in?

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

What is the maximum zener impedance of the 1N4730A at the test current?

The maximum zener impedance (Zzt) is 9 Ω at a test current of 64 mA.

What is the leakage current of the 1N4730A and at what reverse voltage?

The maximum leakage current is 50 µA at a reverse voltage of 1 V.

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