91V 0.5W Zener Diode – Precise Voltage Regulation

Reliable 91V Nominal Zener Diode for Voltage Regulation

This 91V 0.5W (1/2 watt) Zener diode is engineered for accurate, stable voltage regulation in demanding electronic circuits. Delivering a nominal regulating voltage of 91.0 volts, it is ideal for clamping, surge suppression, and voltage reference applications where reliability and predictable behavior are critical.

Key Features and Technical Specifications

• Nominal Zener Voltage: 91.0V
• Power Dissipation: 0.5W (1/2 watt) maximum
• Construction: Through-hole (axial lead), DO-35 package
• Quantity per package: 1
• Formerly NTE Part Number: NTE5049A

Applications

• Precision voltage regulation
• Reference elements in power supply circuits
• Overvoltage protection and surge suppression
• Signal processing and conditioning

Usage Notes

• Ensure the diode operates within its rated 0.5W power dissipation for optimal reliability and longevity.
• Use appropriate heat sinking or derating in high-temperature environments.
• Install via standard through-hole soldering techniques in compatible PCB layouts.

This part is the equivalent replacement for the following:

1/2Z91T5, 1/4A91, 1/4A91A, 1/4A91B, 1/4M91Z, 1/4M91Z10, 1/4M91Z5, 1/4Z91D, 1/4Z91D10, 1/4Z91D5, 157-910(MAG-ZENER), 1N5270, 1N5270A, 1N5270B, 1N5886, 1N5886A, 1N5886B, 1N6023A, 1N6023B, 1N737, 1N737A, 1N737B, 1N984, 1N984A, 1N984B, 1S2574, 201X2220-878, .25N91, .25T91B, .4M91Z, .4M91Z5, 530157-910, .5M91ZS10, .5M91ZS5, BZX55C91, ECG5049, ECG5049A, EX0163CE, HM91, HM91A, NTE5049A, RD91EA, RD91EB, RH-EX0163CEZZ, SK3815, SK3815/5049A, SK91A, SK91A/5049A, TM5049A, WEP1455