規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Voltage - Zener(Nom)(Vz) | 18 V |
| Tolerance | ±2% |
| 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 (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The MM3Z18VST1G is a 18V Zener diode from ON Semiconductor, designed for voltage regulation and protection in low-power circuits. Key features:
- Voltage Range: 18V nominal Zener voltage (Vz) at 5mA.
- Power Dissipation: 200mW (SOD-323 package).
- Applications: Voltage clamping, surge protection, and signal conditioning in consumer electronics, automotive, and industrial systems.
- Advantages: Small form factor, low leakage current, and precise voltage regulation.
It operates in reverse bias, maintaining a stable voltage across its terminals when the breakdown voltage (18V) is exceeded. Suitable for ESD protection and stabilizing voltage in sensitive circuits.
For detailed specs, refer to the datasheet for tolerances, temperature coefficients, and current-voltage characteristics.
- Voltage Range: 18V nominal Zener voltage (Vz) at 5mA.
- Power Dissipation: 200mW (SOD-323 package).
- Applications: Voltage clamping, surge protection, and signal conditioning in consumer electronics, automotive, and industrial systems.
- Advantages: Small form factor, low leakage current, and precise voltage regulation.
It operates in reverse bias, maintaining a stable voltage across its terminals when the breakdown voltage (18V) is exceeded. Suitable for ESD protection and stabilizing voltage in sensitive circuits.
For detailed specs, refer to the datasheet for tolerances, temperature coefficients, and current-voltage characteristics.
Features
The MM3Z18VST1G is an 18V Zener diode with the following key features:
- Voltage Range: 18V nominal Zener voltage (Vz).
- Power Dissipation: 500mW (max).
- Package: SOD-323 (small surface-mount).
- Tolerance: ±5% (typical).
- Low Leakage Current: <100nA at VR = 15V.
- Applications: Voltage regulation, overvoltage protection, and signal clamping.
- Operating Temperature: -65°C to +150°C.
Compact and reliable, it’s ideal for space-constrained circuits.
- Voltage Range: 18V nominal Zener voltage (Vz).
- Power Dissipation: 500mW (max).
- Package: SOD-323 (small surface-mount).
- Tolerance: ±5% (typical).
- Low Leakage Current: <100nA at VR = 15V.
- Applications: Voltage regulation, overvoltage protection, and signal clamping.
- Operating Temperature: -65°C to +150°C.
Compact and reliable, it’s ideal for space-constrained circuits.
Pinout
The MM3Z18VST1G is a 3-pin Zener diode in a SOD-323 package.
Pin Functions:
1. Anode (A) – Connected to ground or the lower voltage side.
2. Cathode (K) – Connected to the positive supply; conducts when reverse voltage exceeds the Zener voltage (18V).
3. No Connection (NC) – Unused pin for mechanical stability.
Key Features:
- Zener Voltage (Vz): 18V
- Power Dissipation: 200mW
- Package: SOD-323 (Small Outline Diode)
Used for voltage regulation and protection in low-power circuits.
Pin Functions:
1. Anode (A) – Connected to ground or the lower voltage side.
2. Cathode (K) – Connected to the positive supply; conducts when reverse voltage exceeds the Zener voltage (18V).
3. No Connection (NC) – Unused pin for mechanical stability.
Key Features:
- Zener Voltage (Vz): 18V
- Power Dissipation: 200mW
- Package: SOD-323 (Small Outline Diode)
Used for voltage regulation and protection in low-power circuits.
Manufacturer
The MM3Z18VST1G is a Zener diode manufactured by ON Semiconductor, a leading global supplier of power management, analog, and sensor solutions.
ON Semiconductor is a Fortune 500 company specializing in energy-efficient technologies for automotive, industrial, and consumer markets. Known for high-reliability components, it serves industries requiring robust semiconductor solutions.
ON Semiconductor is a Fortune 500 company specializing in energy-efficient technologies for automotive, industrial, and consumer markets. Known for high-reliability components, it serves industries requiring robust semiconductor solutions.
Application
The MM3Z18VST1G is an 18V Zener diode used for voltage regulation and protection in various applications, including:
1. Power Supplies – Stabilizing voltage in low-power circuits.
2. Consumer Electronics – Protecting sensitive components from overvoltage (e.g., TVs, smartphones).
3. Automotive Systems – Safeguarding ECUs and sensors.
4. Industrial Controls – Ensuring stable voltage in PLCs and instrumentation.
5. Telecom Devices – Preventing voltage spikes in communication equipment.
Its small SOD-323 package makes it ideal for space-constrained designs.
1. Power Supplies – Stabilizing voltage in low-power circuits.
2. Consumer Electronics – Protecting sensitive components from overvoltage (e.g., TVs, smartphones).
3. Automotive Systems – Safeguarding ECUs and sensors.
4. Industrial Controls – Ensuring stable voltage in PLCs and instrumentation.
5. Telecom Devices – Preventing voltage spikes in communication equipment.
Its small SOD-323 package makes it ideal for space-constrained designs.
Package
The MM3Z18VST1G is a Zener diode in a SOD-323 surface-mount package. This small, lead-free package is designed for high-density PCB applications, measuring approximately 1.7mm x 1.25mm x 1.1mm. It is suitable for voltage regulation and protection circuits in compact electronic devices.
