KAQY212
60V 200mA MOSFET output solid state relay with 2500V isolation, low on-resistance 1.0Ω, SOP-4 package for DC switching.
Product Overview
Description
The KAQY212 is a compact MOSFET output solid state relay designed for low to medium DC load switching applications.
Features 200mA continuous load current capability with 1.0Ω typical on-resistance for efficient power switching.
The SOP-4 package provides excellent isolation and is suitable for surface-mount assembly processes.
Product Series
KAQY
Primary Application
Sensor switching
Key Features
- 200mA load current
- Low on-resistance 1.0Ω
- 2500V isolation
- Fast switching
- Compact SOP-4 package
- Long operational life
- RoHS compliant
Specifications
| Output Type | MOSFET |
|---|---|
| Load Voltage | 60V DC |
| Load Current | 200mA continuous |
| Isolation Voltage | 2500Vrms |
| On-Resistance | 1.0Ω typical |
| Turn-on Time | 0.5ms typical |
| Turn-off Time | 0.1ms typical |
| Package | SOP-4 |
| Operating Temperature | -40°C to +85°C |
Applications
Sensor switching
Sensor signal conditioning
Low-power DC control
Industrial automation and control
Signal routing
Sensor signal conditioning
Battery-powered devices
Battery and charging management
Portable equipment
Electronic system design
FAE Expert Insights
"For lower voltage DC applications, the KAQY212 offers excellent value. The 60V rating is perfect for 12V and 24V industrial systems, and the 100mA current handles most small loads. I particularly like the fast switching - less than 1ms turn-on/off time compared to 5-10ms for mechanical relays. This makes it ideal for PWM applications and high-speed testing. The SOP-4 package is compact and easy to layout. Design recommendation: ensure adequate copper area for heat dissipation if switching currents above 50mA continuously. At 100mA, you'll need about 100mm² of copper to keep junction temperature reasonable."
Compact DC SSR for low-current switching applications
— Senior FAE Team, BeiLuo
Frequently Asked Questions
What is the maximum load current for KAQY212?
The KAQY212 supports 200mA continuous load current. This is suitable for switching sensors, small DC motors, LEDs, and other low-power DC loads. For higher current requirements, consider the KAQY214 which supports 400mA.
200mA continuous for low-power DC loads.
Can KAQY212 be used for signal switching?
Yes, KAQY212 is excellent for signal switching applications. The low on-resistance (1.0Ω) minimizes signal attenuation, and the fast switching speed preserves signal integrity. It's commonly used for routing analog and digital signals in test equipment and instrumentation.
Excellent for signal routing applications.
What is the isolation capacitance of KAQY212?
The KAQY212 has typical isolation capacitance of 1.0pF between input and output. This low capacitance ensures excellent high-frequency isolation and minimizes coupling of noise from the output side to the control circuitry.
Low 1.0pF isolation capacitance for noise immunity.
Is KAQY212 suitable for battery applications?
Yes, KAQY212 is ideal for battery-powered applications. The LED input requires only 5-20mA, and the MOSFET output has no holding current. This is much more efficient than mechanical relays which require continuous coil current. The low power consumption extends battery life.
Very suitable for battery-powered devices.
What is the minimum load current for KAQY212?
KAQY212 can switch loads as low as microamps. Unlike some SSRs that have minimum load current requirements, MOSFET output SSRs can switch very small currents reliably. This makes them suitable for switching high-impedance circuits and sensitive measurements.
No minimum load current - can switch microamp loads.