43V 1W Zener Diode – Precision Voltage Regulation

Overview of the 43V 1W Zener Diode

The 43V 1W Zener Diode (NTE5087A) is engineered for consistent and reliable voltage regulation in a variety of demanding electronic applications. Featuring a nominal zener voltage of 43.0 volts and a 1 watt power handling capability, this through-hole DO-35 package diode offers stable performance for voltage reference and protection tasks.

Key Features and Benefits

• Nominal Zener Voltage: 43.0V
• Power Dissipation: 1 Watt
• DO-35 Through-Hole Package: Easy integration into PCBs and circuits
• Reliable Voltage Regulation: Designed for steady-state voltage control and circuit protection

Technical Specifications

• Device Type: Zener Diode
• Part Number: NTE5087A
• Package: DO-35 Glass
• Nominal Zener Voltage: 43V
• Maximum Power Dissipation: 1 Watt
• Mounting Style: Axial, Through-Hole
• Polarity: Cathode band indicates the zener side
• Quantity Per Package: 1

Typical Applications

• Precision voltage regulation for power supplies
• Over-voltage protection in sensitive electronic circuits
• Reference voltage element in analog and digital circuits
• General-purpose voltage clamping

Usage Instructions

To use the NTE5087A 43V 1W Zener Diode, connect the cathode (marked end) to the higher potential in the circuit. When the reverse voltage applied across the diode exceeds 43 volts, it begins regulating to maintain a consistent voltage drop, ensuring protection and stable operation of downstream components. This makes it ideal for use in environments requiring precise voltage references or basic overvoltage defense.

This part is the equivalent replacement for the following:

029-ES, 1029-ES, 103-279-39, 141967, 192-430(MAG-ZENER), 1EZ43D, 1EZ43D10, 1EZ43D5, 1M43Z, 1M43Z10, 1M43Z5, 1M43ZS10, 1M43ZS5, 1N1786, 1N1786A, 1N3035, 1N3035A, 1N3035B, 1N3694, 1N3694A, 1N3694B, 1N4177, 1N4177A, 1N4177B, 1N4342, 1N4342A, 1N4342B, 1N4419, 1N4419A, 1N4419B, 1N4647, 1N4676, 1N4755, 1N4755A, 1N4755AE, 1N4755AG, 1N4847, 1N4847A, 1N5260B, 1N5578, 1N5578A, 1N5578B, 1R43, 1R43A, 1R43B, 1S1183, 1S1421, 1S1421R, 1S1746, 1S244, 1S2509, 1S3043, 1TA43, 1TA43A, 1TA43B, 1WB-45D, 1Z43, 1Z43A, 1ZC43, 1ZM43T5, 1ZS43A, .25T43, .25T43A, 48-03073A08, .4T43, .4T43A, .4T43B, 523-2003-430, 5301921430, 530192-430, .7JZ43, .7Z43, .7Z43A, .7Z43B, .7Z43C, .7Z43D, .7ZM43, .7ZM43A, .7ZM43B, .7ZM43C, .7ZM43D, AZ976B, BZV17C43, BZV85C43, BZX29C43, BZX60C43, BZX65C43, BZX82C43, BZX85C43, CXL5039, CXL5087, ECG5087, ECG5087A, EE5A-43, ELP43, FD-1029-ES, GEZD-43, GXI43, GZ1-43, HW43, HW43A, JZ43B, LPM43A, LZZ1-43, MA2430, MC6029A, MC6129A, MEZ1-39, MEZ1-43, MTZ629A, NT5535, NT55C43, NTE5087A, S5260B, SK3339, SK3339/5087A, SK43V, SK43V/5087A, TM5087A, UZ1-43, UZ1-43G, VR43B, WEP1169, Z4755A, Z4B43, ZA43B, ZB240, ZB43, ZB43A, ZB43B, ZC140, ZC-140(43.0V.ZENER), ZD43, ZD43B, ZH140, ZH43B, ZM43B, ZPY43, ZR240, ZY43