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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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Hybrid Electronics ✓
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400 pcs
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400 pcs On Request 1 On Request On Request 0646 On Request 2026-04-29 04:15:10
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250 pcs
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250 pcs On Request 1 On Request On Request On Request On Request On Request
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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
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Dissipation
SVHC Present
Storage Temperature
Supplier Device Package
Termination Style
Tolerance
Voltage
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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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