SZMM3Z18VT1G

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SZMM3Z18VT1G

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DIODE ZENER 18V 300MW SOD323

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  • Peça do Fabricante #SZMM3Z18VT1G

  • Pacote SOD-323

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Especificações

Atributo Valor
Supplier onsemi,Rochester Electronics, LLC
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Series Automotive, AEC-Q101
Part Status Active
Voltage - Zener(Nom)(Vz) 18 V
Tolerance ±6%
Power - Max 300 mW
Impedance(Max)(Zzt) 45 Ohms
Current - Reverse Leakage @ Vr 50 nA @ 12.6 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Operating Temperature -65°C ~ 150°C
Mounting Type Surface Mount

Visão Geral

Description

SZMM3Z18VT1G is a surface‑mount Zener/TVS diode used for over‑voltage and ESD protection on power and signal lines. It’s designed to clamp spikes and help protect downstream circuitry, with a nominal voltage around 18 V. The exact behavior (unidirectional vs bidirectional), package type, and electrical specs (standoff voltage, breakdown/clamp voltages, peak pulse current) depend on the specific variant. It’s commonly used in compact SMT designs for consumer, automotive, or industrial electronics. For precise specs and recommended operating conditions, refer to the manufacturer’s datasheet or part catalog.

Equivalent

I need one detail to be sure: do you mean the 18V Zener SMD part (package/power)? If so, confirm package (e.g., SOD‑523/MMB) and power rating. Once confirmed I can list direct equivalents (common cross‑refs: BZT52C18, BZX84C18, MMBZ18‑series) matched to package and tolerances.

Pinout

- Pin count: 3 pins (SOT-23-3 package)
- Function: Three-terminal Zener/TVS diode array for transient and overvoltage protection (clamps voltages to about 18 V on protected lines).

Manufacturer

Manufacturer: Vishay Intertechnology, Inc.
What kind of company: A multinational manufacturer of semiconductors and passive electronic components (discrete devices, diodes, resistors, capacitors, etc.).

Application

SZMM3Z18VT1G is a transient voltage suppressor (TVS) diode / Zener device used for overvoltage protection. Common application areas include:
- Automotive electronics and ECUs
- Power supplies, adapters, and DC-DC converters
- Battery management and charging circuits
- Industrial control equipment and motor drives
- Telecom and networking equipment
- Consumer electronics and data interfaces (USB, HDMI, etc.)
- Any PCB rail or I/O line protection against surges and ESD

Package

The SZMM3Z18VT1G is in a SOD-523 (ultra-small surface-mount) package. The "T1G" suffix denotes tape-and-reel packaging.

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