Power Relays

The electrification of everything.

Replace your large, slow, unreliable EM relays with the Ideal Switch. Enable a new era of connected and better protected buildings (residential, commercial, hospitals, airports), transportation (eMobility, Rail, Marine), factories (Robots and Systems), and power distribution (solar, wind, grid, battery).
MM9000 Series Specs
This series is optimized for power switching and power density. Scalable in current carrying and voltage standoff.
DescriptionVoltage TypeStandoff VoltageCurrent RatingContact ResistanceSafety IsolationControl VoltageControl CurrentSwitching ModeStatus
MM9200Power SwitchAC or DC300V10A10 mΩ-90V9 nACold switchingSampling
MM9250Power RelayAC or DC300V10A20 mΩ5 kV5V10 mAHot switchingUnder development

Single Pole Single Throw, Normally Open


Power Switch

The MM9200 is a high-power SPST micro-mechanical switch. The innovative Ideal Switch technology enables highly reliable micro-mechanical switches capable of carrying high voltage and high current in a small form factor. The MM9200 provides ultra-low on-state resistance and high off-state isolation, with greater than 1 billion switching cycles. Because of its long lifetime, extremely low current consumption, and small form factor, the MM9200 is an ideal solution for replacing electromechanical relays, as well as solid-state switches used for control applications where size, weight, power efficiency and thermal management are critical system-level design parameters.

Product Brief

Cad Drawings (QFN)  Cad Drawings (CSP)

Access additional design information on the
Menlo Support Portal >

Top view

Bottom view

The MM9200 on an evaluation kit board.

The MM9200 on an evaluation kit board.


Smart Power Relay

The MM9250 is a highly-integrated, ultra-low resistance smart power relay using Ideal Switch technology. The relay reduces the size, weight and volume while integrating built-in monitoring, protection and controls into a low-profile surface mount package.

The MM9250 can handle AC or DC loads up to 300V and 10A and can be scaled to higher ratings.

Product Brief

Access additional design information on the
Menlo Support Portal >

Smart power relay
The low losses and high power handling of an EM relay, with the speed and reliability of a solid-state switch.
SSR RelayEM RelayKey Benefits
Size3cm x 2.5cm x 0.4cm 3cm³ (no heat sink)4.5cm x 5.7cm x 2.2cm
56.4 cm³ (no heat sink)
225.9 cm³ (with heat sink)
4.8cm x 3.5cm x 3.9cm
65.5 cm²
• >90% reduction in volume
• No heavy heat sink
Weight<10 g320 g85 g• 90% reduction in weight
• No heavy heat sink
Turn on/off time100 us75/100 µs30 ms• >1000x faster than EMR
Power consumption<5 mW<60 mW1.5 W• 80% reduction from SSR
• 150x reduction from EMR
Lifetime>1B operations,
decades of life
>1B operations,
decades of life
100k operations• Lifetime similar to SS technology

Comparison is based on typical for a 10A relay

High-power impact.

Switches do the heavy lifting to power our world, but current technology (transfer switches, contractors, and industrial circuit breakers, for example) are bulky, power-hungry and slow.
Reduced Size & Weight

Go from multiple bulky circuit breakers to small Ideal Switch boards. This means more than 85% reduction in size and weight for a higher density and smaller footprint.

Reduced Switching Speed

Go from 3-20ms to <10µs arc-free switching. 1,000x faster for safer, more efficient power management.

Reduced Power Consumption

Get rid of high power MOSFET switches. Go from 1.5W EMR, <60W SSR to <10W.  That is 150x less power than EMRs, and 80% reduction from SSR for money saved.

Increased Power Rating

High-power handling of EMR in combination with the speed and reliability of SS. Works with all standard voltage ratings.

Increased Reliability

Go from <100K EMR cycles to 10B cycles for the lifetime of a solid-state switch.

Enabling Technology

Turn big things off when sensors signal they’re not needed, like street lights, production lines or building HVAC. 

“The Ideal Switch is a tiny, efficient, reliable micro-mechanical switch with unmatched RF-performance and, counterintuitively, high-power handling of 1,000s of watts.”


Learn more about our Power Relay solutions. We have sales teams around the world.
Here are the questions we get asked most often.