43V 5W Zener Diode – Silicon, Axial Lead

High Voltage Zener Diode for Precision Voltage Regulation

The NTE5145A is a silicon Zener diode designed for applications requiring stable voltage regulation at high power levels. With a nominal regulating voltage of 43.0 volts and a robust 5 watt power dissipation rating, this axial lead Zener diode is engineered for reliability in demanding circuit environments.

Technical Specifications

• Zener Voltage (Nominal): 43.0V
• Power Dissipation: 5 Watts
• Package Type: Axial Lead (Through Hole)
• Material: Silicon
• Part Number: NTE5145A
• Quantity Per Package: 1

Applications and Features

This high voltage 43V 5W Zener diode is ideal for use in voltage regulation, surge suppression, and circuit protection applications. Its high power dissipation and precision zener voltage make it suitable for power supplies, voltage clamping, and industrial electronic circuits requiring stable reference voltages.

The silicon construction ensures long-term stability and reliability, while the through-hole axial lead design enables secure placement in both professional and hobbyist electronic assemblies.

Usage Instructions

Install the NTE5145A Zener diode in the desired orientation, ensuring correct polarity for optimal voltage regulation. For best thermal performance, observe recommended layout practices and heat dissipation guidelines for through-hole diodes operating at higher power levels.

This part is the equivalent replacement for the following:

1.5DKZ43, 1.5DKZ43A, 1.5DKZ43B, 1.5JZ43, 1.5JZ43A, 1.5JZ43B, 1.5JZ43C, 1.5JZ43D, 1.5R43, 1.5R43A, 1.5R43B, 1.5Z43, 1.5Z43A, 1.5Z43B, 1.5Z43C, 1.5Z43D, 1N1741, 1N1741A, 1N3804, 1N3804A, 1N3804B, 1N4480, 1N4847B, 1N4973, 1N4974, 1N5039, 1N5039A, 1N5082, 1N5367, 1N5367A, 1N5367B, 1N5367BE, 1N5367BG, 1N5940, 1N5940A, 1N5940B, 1S3043A, 1S4043, 1S4043A, 2EZ43D5, 2R43, 2R43A, 2R43B, 2VR43, 2VR43A, 2VR43B, 3EZ43D5, 3R43, 3R43A, 3R43B, 3TZ43, 3TZ43A, 3TZ43B, 3TZ43C, 3TZ43D, 3VR43, 3VR43A, 3VR43B, 4048998, 5335, 5M43ZS5, 5ZS43, 5ZS43A, 5ZS43B, 7735, 919-017406-034, BZD23-C43, BZT03-C43, BZV16C43, BZV58C43, BZX61C43, BZX70C43, BZX87C43, BZY95C43, CXL5145, CZ5367B, ECG5145, ECG5145A, LMZ43, LMZ43-20, LMZ43A, LMZX43, LMZX43A, MC6329A, MZ743, NT5335C, NT7735, NT77C43, NTE5145A, SK3411, SK3411/5145A, SK43X, SK43X/5145A, SX43, TM5145A, UZ4743, WEP1639, Z2B43, ZAC43B, ZBC43, ZBC43A, ZBC43B, ZC43, ZC43A, ZC43B, ZCC43, ZCC43B