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1N5231B Zener diode with a nominal voltage of 5.1V, ±5% tolerance, and 500mW power dissipation. Packaged in a DO-35 axial lead through-hole case.
Mfr Part #:

1N5231B

Available from 5 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with a nominal voltage of 5.1V, ±5% tolerance, and 500mW power dissipation. Packaged in a DO-35 axial lead through-hole case.
Total Stock: 15,167 pcs

1N5231B Available from 5 distributors

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1N5231B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Forward Voltage
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Lead Style
Maximum Impedance (Zzt)
Medical Grade
Military Grade
Mounting Method
Mounting Type
Operating Junction Temperature Range
Operating Temperature
Operating Temperature Range
Package / Case
Package Type
Power
Power Dissipation
Reverse Leakage Current
SVHC Present
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Temperature Coefficient
Termination Style
Tolerance
Voltage
Zener Test Current
Zener Voltage
Zener Voltage Tolerance

1N5231B Description

Short technical summary and product information.

The 1N5231B is a 5.1V Zener diode from On Semiconductor, part of the 1N5221B-1N5252B series. It offers a nominal Zener voltage of 5.1V with a tolerance of ±5%, making it suitable for voltage regulation and reference applications.

 

This device can dissipate up to 500mW of power and features a maximum impedance (Zzt) of 17 ohms at a test current of 20mA. The reverse leakage current is specified at 5µA maximum at a reverse voltage of 2V. The junction and storage temperature range extends from -65°C to 200°C.

 

The 1N5231B is housed in a DO-204AH (DO-35) through-hole package with axial leads, compatible with standard through-hole PCB mounting. The temperature coefficient is typically 0.03%/°C, providing stable operation over temperature.

1N5231B Quick Information

Product Type: Zener Diode
Series: 1N5231B
Canonical Name: 1N5231B Zener Diode 5.1V 500mW DO-35
Subcategory: Single Zener Diode

1N5231B Compliance

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

1N5231B Features

  • 5.1V Zener voltage with ±5% tolerance.
  • 500mW power dissipation rating.
  • DO-35 through-hole axial package.
  • 17Ω maximum impedance at 20mA.
  • -65°C to 200°C operating range.

1N5231B Applications

  • Used in voltage regulation circuits.
  • Suitable for voltage reference applications.
  • Ideal for overvoltage protection.
  • Common in power supply designs.

1N5231B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N5231B?

The Zener voltage is 5.1V with a tolerance of ±5%.

What is the power dissipation rating?

The power dissipation is 500mW.

What package does the 1N5231B come in?

It is available in a DO-204AH (DO-35) through-hole axial lead package.

What is the forward voltage?

The forward voltage is 1.2V at a forward current of 200mA.

What is the maximum reverse leakage current?

The reverse leakage current is 5µA at a reverse voltage of 2V.

What is the operating temperature range?

The operating junction temperature range is -65°C to 200°C.

What is the temperature coefficient?

The temperature coefficient is 0.03%/°C.

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