SMP-47 Photo-MOSFET Relay
The SMP-47 Series is a high-current, solid-state Photo-MOSFET relay designed for compact, high-performance electronic systems. Available in SOP, SMD, and DIP packages, it supports switching up to 80 V AC or peak DC and load currents up to 1.5 Amps, with peak capability up to 3 Amps, making it ideal for medium-power applications requiring fast, reliable switching.
With a typical on-resistance of 0.12 Ω, output capacitance of 220 pF, and minimal off-state leakage current of 1 µA, the SMP-47 Series ensures efficient signal control and high 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
- High current switching capability (up to 1.5 A continuous, 3 A peak)
- Low on-resistance (typ. 0.12 Ω) for efficient power handling
- Moderate output capacitance (220 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 | 80 |
| Load Current Max. (A) | 1.5 |
| LED Operate Current Typ/Max. (mA) | 0.5/3.0 |
| On Resistance Typ/Max. (Ω) | 0.12/0.16 |
| Output Capacitance (pF) | 220 |
| Off-State Leakage (μA) | 1 |
Automated Test Equipment (ATE): High-current switching for precision testing
Electric Vehicles: Power control in battery and drive systems
I/O Modules: Signal routing and isolation in industrial automation
Medical Equipment: Safe, low-noise switching in diagnostic and monitoring devices
Sensing Equipment: Clean signal control in precision instrumentation
Telecommunications: Compact relay replacement in communication systems
Security Systems: Silent, dependable switching in access control and alarm systems
Solar Battery Management: Efficient switching in renewable energy systems
Automotive (AEC-Q101): Qualified for harsh automotive environments