onsemi General Purpose 12 V Zener Diode, 1 W Power Dissipation, Through Hole DO-41 1N4742ATR

onsemi 1N4742ATR is a general purpose Zener diode featuring a nominal Zener voltage of 12 volts and a maximum power dissipation of 1 watt. This diode is configured as a single element with a two-pin through hole package type DO-41, facilitating easy integration into circuit boards for industrial, commercial, and laboratory electronic applications.

Its electrical characteristics include a low maximum reverse leakage current of 5 microamperes, ensuring efficient operation with minimal energy loss. The device has a Zener voltage tolerance of ±5%, enabling precise voltage regulation in power supply designs.

The diode supports a test current of 21 milliamperes and exhibits a maximum Zener impedance of 9 ohms, which contributes to stable voltage reference under typical load conditions. Designed to operate efficiently across a wide temperature range from -65°C to 200°C, this Zener diode is highly suitable for use in demanding environments.

The compact dimensions of the DO-41 package (2.72 mm height and 5.2 mm length) make the 1N4742ATR an ideal choice for space-sensitive circuit designs. Its robust construction ensures reliable long-term operation in industrial power regulation, voltage clamping, and general semiconductors applications.

Single diode configuration with 2 pins for easy through hole mounting. Nominal Zener voltage of 12 volts with ±5% tolerance. Maximum power dissipation rating of 1 watt for continuous operation. Low leakage current and test current of 5μA and 21mA respectively.

Wide operating temperature range from -65°C to 200°C for harsh conditions. Compact DO-41 package design suitable for various PCB layouts. General purpose type suitable for voltage regulation and protection.

This 1N4742ATR Zener diode from onsemi is widely used in electronics manufacturing, industrial controls, power supplies, and prototype development laboratories. It offers reliable performance and durability for effective voltage reference and regulation.

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