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1N746A The 1N746A is a 3.3V Zener diode rated for 500mW power dissipation in a DO-35 axial lead package.
Mfr Part #:

1N746A

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N746A is a 3.3V Zener diode rated for 500mW power dissipation in a DO-35 axial lead package.
Total Stock: 1,135 pcs

1N746A Available from 3 distributors

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485 pcs
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400 pcs
400 pcs On Request 1 On Request On Request 0646 On Request 2026-04-29 04:15:10
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250 pcs
250 pcs On Request 1 On Request On Request On Request On Request On Request

1N746A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Lead Spacing
Lead Style
Maximum Zener Current
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Dissipation
Reverse Leakage Current
SVHC Present
Storage Temperature
Supplier Device Package
Termination Style
Tolerance
Voltage
Zener Impedance
Zener Voltage
Zener Voltage Tolerance

1N746A Description

Short technical summary and product information.

The 1N746A is a Zener diode from On Semiconductor designed for voltage regulation and protection applications. It provides a nominal Zener voltage of 3.3V with a tolerance of ±5% and a maximum power dissipation of 500mW at a lead temperature of 75°C.

 

Key electrical characteristics include a Zener impedance of 28Ω at 20mA test current, a maximum Zener current of 110mA, and a reverse leakage current of 10µA at 1V. The forward voltage is 1.5V maximum at 200mA forward current.

 

The device is housed in a DO-35 glass case with axial leads for through-hole mounting. It operates over a junction temperature range of -65°C to +200°C and is suitable for general-purpose voltage regulation and clamping circuits.

1N746A Quick Information

Product Type: Zener Diode
Series: 1N746A-1N759A
Canonical Name: 1N746A Zener Diode 3.3V 500mW DO-35
Subcategory: Single Zener Diode

1N746A Compliance

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

1N746A Features

  • 3.3V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation at 75°C lead temperature.
  • 28Ω Zener impedance at 20mA test current.
  • 110mA maximum Zener current rating.
  • DO-35 glass through-hole package.

1N746A Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage generation in analog designs.
  • Clamping and limiting in signal conditioning.

1N746A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N746A?

The 1N746A has a nominal Zener voltage of 3.3V with a tolerance of ±5%.

What is the power dissipation rating of the 1N746A?

The 1N746A is rated for 500mW power dissipation at a lead temperature of 75°C.

What is the package type of the 1N746A?

The 1N746A is available in a DO-35 glass axial lead through-hole package.

What is the forward voltage of the 1N746A?

The forward voltage is 1.5V maximum at a forward current of 200mA.

What is the operating temperature range of the 1N746A?

The 1N746A operates over a temperature range of -65°C to +200°C.

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