SMP-45 Photo-MOSFET Relay
The SMP-45 Series is a general-purpose, solid-state Photo-MOSFET relay designed for compact, high-performance electronic systems. Available in SOP, SMD, and DIP packages, it supports switching up to 60 V AC or peak DC and load currents up to 200 mA, making it ideal for low- to medium-power applications requiring high reliability and fast switching.
With a typical on-resistance of 3 Ω, ultra-low output capacitance of 1.3 pF, and minimal off-state leakage current of 1 µA, the SMP-45 Series ensures clean signal transitions and high signal integrity. Its solid-state design eliminates contact bounce and mechanical wear, offering superior resistance to shock, vibration, and environmental contaminants.
This series is optimized for switching both low-level analog signals and higher-level loads such as LEDs, relays, solenoids, and lamps. Its high input-to-output isolation and long operational life make it a dependable solution for industrial, automotive, medical, and test environments.
Standards and Certifications
- Solid-state switching with no contact bounce or mechanical degradation
- Low voltage switching capability (up to 60 V AC/DC)
- Ultra-low output capacitance (1.3 pF) for clean signal transitions
- Minimal off-state leakage (1 µA) for high signal fidelity
- High input-to-output isolation for safe circuit separation
- Available in SOP, SMD, and DIP packages for flexible integration
- Shock and vibration resistant, impervious to dirty environments
- Stable on-resistance over time for consistent performance
- Long operational life with high reliability in solid-state form
| Contact Form | 1A, 2A |
| Package Style (Pin Count) | DIP(4, 6, 8), SMD(4, 6, 8), SOP(4, 8) |
| Load Voltage (V) AC/DC | 60 |
| Load Current Max. (mA) | 200 |
| LED Operate Current Typ/Max. (mA) | 0.9/3.0 |
| On Resistance Typ/Max. (Ω) | 3/14 |
| Output Capacitance (pF) | 1.3 |
| Off-State Leakage (μA) | 1 |
- Automated Test Equipment (ATE): Fast, reliable signal switching
- Electric Vehicles: Low-power control in battery management systems
- I/O Modules: Signal routing and isolation in industrial automation
- Medical Equipment: Safe, low-noise switching in diagnostic devices
- Sensing Equipment: Clean signal control in precision instruments
- Telecommunications: Relay replacement in compact communication systems
- Security Systems: Silent, reliable switching in access control and alarms
- Solar Battery Management: Efficient switching in renewable energy systems
- Automotive (AEC-Q101): Qualified for harsh automotive environments