사양
| 속성 | 가치 |
| 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 |
개요
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).
- 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.).
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
- 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.
