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MM3Z15VT1G

15V Zener diode, 500mW, 2% tolerance, 15Ohm impedance, SOD-323

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Manufacturer Part：

MM3Z15VT1G

Package：

SOD-323 (1.70 x 1.30 x 0.90 mm)

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Description

Product Overview

The MM3Z15VT1G from onsemi is a 500 mW surface-mount Zener voltage regulator diode in SOD-323, providing 15 V nominal Zener voltage with 2% tolerance. Low Zener impedance and low reverse leakage make it ideal for voltage regulation and IGBT gate drive clamping.

Key Specifications

Zener Voltage 15 V (+/-2%)
Power Dissipation 500 mW
Zener Impedance 15 Ohm (typ @ IZT=5mA)
Reverse Leakage 0.01 uA (max @ VR=11V)
Tolerance +/-2%
Operating Temp -65C to +150C

Features

  • Compact SOD-323 surface-mount package
  • 2% Zener voltage tolerance
  • Low Zener impedance of 15 Ohm
  • Very low reverse leakage current (0.01 uA max)

Applications

  • 15V voltage regulation and referencing
  • Overvoltage protection for gate drive circuits
  • Bias voltage generation in analog circuits

The MM3Z15VT1G from onsemi is a 500 mW surface-mount Zener voltage regulator diode in SOD-323, providing 15 V nominal Zener voltage with +/-2% tolerance. Features low Zener impedance of 15 Ohm at 5 mA test current and extremely low reverse leakage of 0.01 uA at 11 V. Commonly used for IGBT/MOSFET gate drive clamping and 15 V bus regulation.

At 15 V, both Zener tunneling and avalanche multiplication contribute to breakdown. The positive temperature coefficient is moderate (approximately +9 mV/C typical). When reverse biased above the Zener voltage, the device maintains nearly constant voltage. Low dynamic impedance (15 Ohm) ensures minimal voltage change for current variations.

Pin Name Type Function
1 Cathode Terminal Positive terminal when reverse biased
2 Anode Terminal Negative terminal when reverse biased
  • 15V regulated supply for IGBT and MOSFET gate drive circuits
  • Voltage reference in analog signal conditioning
  • Overvoltage protection for 12V automotive bus lines
Manufacturer Part Number Package Notes
onsemi MMSZ15VT1G SOD-123 Same spec, larger package
Nexperia BZX84-C15 SOT-23 15V, 300mW
Vishay BZX55C15 DO-35 Through-hole, 500mW
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