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1N5237B ONSEMI 1N5237B is a 8.2V Zener diode with 500mW power dissipation, available in DO-35 axial lead package. It features ±5% tolerance and low dynamic impedance of 8Ω.
Mfr Part #:

1N5237B

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
ONSEMI 1N5237B is a 8.2V Zener diode with 500mW power dissipation, available in DO-35 axial lead package. It features ±5% tolerance and low dynamic impedance of 8Ω.
Total Stock: 335,098 pcs

1N5237B Available from 3 distributors

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300,000 pcs
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1N5237B Specifications Quick View

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

1N5237B Description

Short technical summary and product information.

The 1N5237B is a Zener diode from ON Semiconductor designed for voltage regulation and protection applications. It provides a nominal Zener voltage of 8.2V at 20mA test current with ±5% tolerance, ensuring tight voltage stability.

 

With a power dissipation rating of 500mW and a low dynamic impedance of 8Ω at 20mA, this diode is suitable for low-power regulation circuits. The reverse leakage current is 3µA at 6.5V, and the forward voltage is 1.2V at 200mA. Operating temperature range spans from -65°C to 200°C, allowing reliable performance in harsh environments.

 

The device is housed in a DO-35 (DO-204AH) axial lead package, which is through-hole mountable with lead spacing typical for axial components. This package is industry standard and compatible with common PCB layouts for Zener diodes. The 1N5237B is part of the 1N5221B-1N5252B series, offering a wide range of Zener voltages.

1N5237B Quick Information

Product Type: Zener Diode
Series: 1N5221B-1N5252B
Canonical Name: ONSEMI 1N5237B Zener Diode, 8.2V, 500mW, DO-35
Subcategory: Single Zener Diode

1N5237B Compliance

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

1N5237B Features

  • 8.2V nominal Zener voltage at 20mA.
  • ±5% tolerance for precise voltage regulation.
  • 500mW power dissipation capability.
  • Low dynamic impedance of 8Ω.
  • Wide operating temperature range -65°C to 200°C.

1N5237B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection applications.
  • Voltage reference in analog circuits.

1N5237B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N5237B?

8.2V at 20mA.

What is the tolerance of the 1N5237B Zener diode?

±5%.

What is the power dissipation rating?

500mW.

What is the forward voltage?

1.2V at 200mA.

What package is the 1N5237B available in?

DO-35 (DO-204AH) axial lead.

What is the operating temperature range?

-65°C to 200°C.

What is the dynamic impedance of the 1N5237B?

8Ω at 20mA (Zzt) and 500Ω at 0.25mA (Zzk).

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