SMP-42 Photo-MOSFET Relay
The SMP-42 Series is a high-current, solid-state Photo-MOSFET relay designed for powerful and reliable switching in compact 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 5 Amps, with peak capability up to 10 Amps, making it ideal for medium- to high-power applications.
With a typical on-resistance of just 20 mΩ, low output capacitance ranging from 400 to 1300 pF, and minimal off-state leakage current of 1 µA, the SMP-42 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. It’s extremely 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 5 A continuous, 10 A peak)
- Ultra-low on-resistance (typ. 20 mΩ) for efficient power handling
- Low output capacitance (400–1300 pF) for clean signal transitions
- Minimal off-state leakage (1 µA) for high signal fidelity
- Extremely 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. (A) | 2-5 |
| LED Operate Current Typ/Max. (mA) | 50 |
| On Resistance Typ/Max. (Ω) | 0.02/0.064 |
| Output Capacitance (pF) | 400-1300 |
| 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
- Semiconductor Testers: High-performance switching in chip evaluation setups
- Automotive (AEC-Q101): Qualified for harsh automotive environments