SZMMBZ18VALT1G

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SZMMBZ18VALT1G

TVS DIODE 14.5VWM 25VC SOT23-3

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規格

Supplier onsemi,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series Automotive, AEC-Q101
ProductStatus Active
Type Zener
UnidirectionalChannels 2
BidirectionalChannels 1
Voltage-ReverseStandoff(Typ) 14.5V
Voltage-Breakdown(Min) 17.1V
Voltage-Clamping(Max)@Ipp 25V
Current-PeakPulse(10/1000µs) 1.6A
Power-PeakPulse 40W
PowerLineProtection No
Applications Automotive
OperatingTemperature -55°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

概述

Description

SZMMBZ18VALT1G is a small-signal Zener diode from the MMBZ series (nominal Zener voltage ~18 V). It’s designed for voltage clamping/regulation and transient protection in surface-mount circuits. The “ALT1G” suffix typically denotes a lead‑free, RoHS-compliant, tape‑and‑reel packaging variant (often in a SOT-23/SOT‑23 style package) and related manufacturing options. Typical use cases include protecting power rails, providing a simple voltage reference, or clamping voltage spikes in consumer and industrial electronics.

Features

SZMMBZ18VALT1G is a unidirectional 18V Zener/TVS diode (MMBZ family) used for transient and ESD protection on I/O and power lines. Key features:
- VRWM = 18 V (unidirectional)
- Very fast response to surges
- Low leakage at rated voltage
- Compact surface-mount package; RoHS-compliant and Pb-free
- Wide operating temp range (-55°C to +125°C)
- Suitable for protecting sensitive circuitry and interfaces from ESD and transient surges
For exact electrical specs (clamping voltages, IPP, leakage at specific temperatures), please consult the datasheet.

Package

Package type: Surface-mount in an SOD-123 family package (SOD-123FL, lead-free/RoHS-compliant).

Pinout

- Pin count: 2 pins (two-terminal device)
- Function: Transient Voltage Suppressor (TVS) diode for surge/ESD protection; rating around 18 V stand-off to clamp overvoltage on protected lines.

Manufacturer

- Manufacturer: ON Semiconductor (Onsemi)
- What kind of company: A global US-based semiconductor company that designs and manufactures discrete components and integrated circuits, including diodes, transistors, ICs, power management devices, and sensors.

Application

SZMMBZ18VALT1G is a multi-line TVS diode array (ESD protection) with ~18 V standoff. It clamps transients on I/O and power rails. Applications: protection of USB/HDMI/LVDS data lines and camera modules in consumer electronics; automotive/industrial electronics (CAN/LIN buses, 12–24 V); telecom/network equipment; and other sensitive electronics needing surge/ESD protection.

Equivalent

Equivalent parts (18V, 0.5W Zener in SMD):
- Vishay MMSZ18VALT1G
- Nexperia BZX84-C18
- Diodes Inc. BZT52C18
- Vishay BZT52H-C18

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