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1N5242B Zener diode, 12V nominal, 500mW power dissipation, ±5% tolerance, in a DO-35 through-hole package.
Mfr Part #:

1N5242B

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode, 12V nominal, 500mW power dissipation, ±5% tolerance, in a DO-35 through-hole package.
Total Stock: 91,020 pcs

1N5242B Available from 2 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
89,020 pcs
89020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,000 pcs
2000 pcs On Request 1 On Request On Request On Request On Request On Request

1N5242B Specifications Quick View

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

1N5242B Description

Short technical summary and product information.

The 1N5242B is a 12V Zener diode from On Semiconductor, designed for voltage regulation and reference applications. It offers a nominal zener voltage of 12V with a ±5% tolerance, ensuring stable operation within specified limits. The device can dissipate up to 500mW of power, making it suitable for low-power circuits.

 

Key electrical characteristics include a maximum impedance of 30Ω at 20mA test current and a reverse leakage current of only 1µA at 9.1V. The forward voltage is 1.2V at 200mA. The diode operates over a wide temperature range from -65°C to 200°C, accommodating demanding environments.

 

Packaged in a DO-35 (DO-204AH) axial leaded through-hole format, the 1N5242B is easy to mount on printed circuit boards. Its compact design and reliable performance make it a common choice for voltage clamping, overvoltage protection, and shunt regulation in consumer, industrial, and automotive electronics.

1N5242B Quick Information

Product Type: Zener Diode
Series: 1N5221B - 1N5252B
Canonical Name: 1N5242B Zener Diode, 12V, 500mW, DO-35
Subcategory: Single Zener Diodes

1N5242B Compliance

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

1N5242B Features

  • Nominal zener voltage of 12V with ±5% tolerance.
  • Maximum power dissipation of 500mW.
  • Low reverse leakage current of 1µA at 9.1V.
  • Through-hole DO-35 package for easy mounting.
  • Operating temperature range from -65°C to 200°C.

1N5242B Applications

  • Ideal for voltage regulation in low-power circuits.
  • Used as a voltage reference in analog designs.
  • Suitable for overvoltage protection in small signal applications.
  • Common in power supply feedback circuits.

1N5242B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1N5242B?

The nominal zener voltage is 12V with a tolerance of ±5%.

What is the maximum power dissipation of the 1N5242B?

The maximum power dissipation is 500mW.

What is the forward voltage of the 1N5242B?

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

What package does the 1N5242B come in?

It comes in a DO-35 (DO-204AH) axial leaded through-hole package.

What is the impedance of the 1N5242B?

The maximum impedance (Zzt) is 30Ω at 20mA test current.

What is the reverse leakage current of the 1N5242B?

The reverse leakage current is 1µA at a reverse voltage of 9.1V.

What is the operating temperature range of the 1N5242B?

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

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