Product Description
Standex Electronics SMP-37 Series MOSFET Relay; 6 PIN / DIP; DPST-NO (2 FORM A); 0 ~ 60 V; 500 mA
MOSFET Relay • Pin Count / Package Style: 8 PIN / SMD • Circuit: DPST-NO (2 FORM A) • Load Voltage DC or Peak AC: 0 ~ 60 V • Load Current Max.: 500 mA
Product Information
| Manufacturer | Standex Electronics |
| Product Category | Relay |
| Product Sub Category | MOSFET Relay |
| Series | SMP-37 Series |
| Catalog Part Number | SMP-2A37-8ST |
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Pin Count / Package Style | 8 PIN / SMD |
| Circuit | DPST-NO (2 FORM A) |
| Load Voltage DC or Peak AC | 0 ~ 60 V |
| Load Current Max. | 500 mA |
| On-State Resistance Max. | 1.6 Ohms |
| Output Capacitance | 45 pF |
| Off-State Leakage | 1 µA |
| I/O Isolation Voltage Max. | 3750 V |
| Special Feature | UL Approved, RoHS Compliant |
Series Features
SMP-37 Photo-MOSFET Relay
Series DescriptionThe SMP-37 Series is a compact, solid-state Photo-MOSFET relay designed for medium-current switching in space-constrained and high-reliability applications. Supporting up to 60 V AC or peak DC and load currents up to 550 mA, it is available in SOP, SMD, and DIP packages to accommodate a wide range of board layouts and assembly methods.
With a typical on-resistance of 0.75 Ω, low output capacitance of 45 pF, and minimal off-state leakage current of 1 µA, the SMP-37 Series ensures efficient signal control and high signal integrity. Its solid-state construction eliminates contact bounce, enhances durability, and provides immunity to shock, vibration, and environmental contaminants.
Capable of switching both low-level analog signals and higher-level loads such as LEDs, relays, solenoids, and lamps, the SMP-37 Series offers high input-to-output isolation and long operational life, making it a dependable solution for industrial, medical, and test equipment environments.
- Solid-state switching with no mechanical degradation
- Medium voltage and current switching (up to 60 V AC/DC, 550 mA)
- Low on-resistance (typ. 0.75 Ω) for efficient power handling
- Low output capacitance (45 pF) for clean signal transitions
- Minimal off-state leakage (1 µA) for high signal fidelity
- High input-to-output isolation for safe and reliable circuit separation
- SOP, SMD, and DIP package options 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
Automated Test Equipment (ATE): Fast, reliable signal switching
Electric Vehicles: Medium-current 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