1N5273B 1N5273B is a 91 V, 500 mW Zener voltage regulator diode in a DO-35 through-hole package. It features ±5% tolerance and 900 Ω maximum impedance.
Mfr Part #:

1N5273B

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
1N5273B is a 91 V, 500 mW Zener voltage regulator diode in a DO-35 through-hole package. It features ±5% tolerance and 900 Ω maximum impedance.
Total Stock: 205 pcs

1N5273B Available from 2 distributors

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60 pcs
60 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

1N5273B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Lead Style
Maximum Soldering Temperature
Military Grade
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Polarity
Power
Power Dissipation
Reverse Leakage Current
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance, Junction to Lead
Tolerance
Voltage
Zener Impedance
Zener Voltage

1N5273B Description

Short technical summary and product information.

The 1N5273B is a 91 V Zener voltage regulator diode from Microchip Technology, part of the 1N5221 through 1N5281B series of 0.5 watt glass axial-leaded Zener diodes. It is designed for voltage regulation over a broad operating current and temperature range.

 

Key electrical specifications include a Zener voltage of 91 V with ±5% tolerance, 500 mW power dissipation, 900 Ω maximum Zener impedance, and a reverse leakage current of 100 nA at 91 V. The forward voltage is 1.5 V at 200 mA. The device operates over a junction temperature range of -65°C to 175°C.

 

The 1N5273B is housed in a DO-35 (DO-204AH) through-hole package with axial leads. Polarity is indicated by a cathode band. The device is non-sensitive to ESD and inherently radiation hard.

1N5273B Quick Information

Product Type: Zener Diode
Series: 1N5273B
Canonical Name: 1N5273B Zener Diode, 91 V, 500 mW, DO-35
Subcategory: Single Zener Diode

1N5273B Compliance

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

1N5273B Features

  • 91 V Zener voltage with ±5% tolerance.
  • 500 mW power dissipation rating.
  • DO-35 through-hole glass package.
  • 900 Ω maximum Zener impedance.
  • 100 nA reverse leakage at 91 V.

1N5273B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection in sensitive electronics.
  • Reference voltage in bias networks.
  • Clamping and limiting applications.

1N5273B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N5273B?

The Zener voltage is 91 V with a tolerance of ±5%.

What is the power dissipation rating?

The power dissipation is 500 mW.

What is the package type?

The device is available in a DO-35 (DO-204AH) through-hole package with axial leads.

What is the forward voltage?

The forward voltage is 1.5 V at 200 mA.

What is the operating temperature range?

The junction temperature range is -65°C to 175°C.

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