9.1V 1Watt Zener Diode 1N4739A

The 1N4739A is a 9.1V, 1W silicon planar Zener diode manufactured by Diodes Incorporated for high-accuracy voltage regulation and threshold switching circuits. Housed in a standard through-hole, hermetically sealed DO-41 glass package, this discrete component ensures a tight breakdown voltage tolerance of 5%. It operates stably at a nominal Zener breakdown voltage of 9.1V under a 28 mA test current while maintaining a low maximum dynamic impedance of 5 ohms. Engineered for robust power management in industrial environments, this device delivers reliable electrical performance across a wide temperature range from minus 65 to plus 175 degrees Celsius.