SMP-23 Photo-MOSFET Relay
The SMP-23 Series is a high-voltage, solid-state Photo-MOSFET relay engineered for robust and reliable switching in compact electronic systems. Encased in a small-outline package (SOP), it supports switching up to 250 V AC or peak DC and load currents up to 170 mA, making it ideal for medium-power applications where space and performance are critical.
With a typical on-resistance of 11 Ω, low output capacitance of 37 pF, and minimal off-state leakage current of 10 nA, the SMP-23 Series ensures clean signal transitions and high signal integrity. Its solid-state architecture eliminates mechanical wear and contact bounce, offering enhanced durability and resistance to shock, vibration, and environmental contaminants.
Designed to handle both low-level analog signals and higher-level loads such as LEDs, relays, solenoids, and lamps, the SMP-23 Series provides high input-to-output isolation and long operational life—making it a dependable solution for demanding industrial, medical, and test environments.
Standards and Certifications
- Solid-state switching with no contact bounce or mechanical degradation
- High voltage switching capability (up to 250 V AC/DC)
- Low output capacitance (37 pF) for clean signal transitions
- Minimal off-state leakage (10 nA) for high signal fidelity
- High input-to-output isolation for safe and reliable circuit separation
- SOP package (4- or 8-pin) ideal for space-constrained designs
- Shock and vibration resistant, impervious to dust and contaminants
- 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) | SOP (4, 8) |
| Load Voltage (V) AC/DC | 250 |
| Load Current Max. (mA) | 170 |
| LED Operate Current Typ/Max. (mA) | 0.6/3.0 |
| On Resistance Typ/Max. (Ω) | 11/15 |
| Output Capacitance (pF) | 37 |
| Off-State Leakage (nA) | 10 |
- Automated Test Equipment (ATE): Reliable switching for precision testing
- Electric Vehicles: Medium-power control in battery and power 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