VEX Robotics will be closed in observance of the US Thanksgiving holiday on Thursday, November 26th, and Friday, November 27th, 2015. Sales or technical support inquiries placed during this period will be processed Monday, November 30th, 2015.

Be advised that UPS will be closed for delivery on Thursday, 11/26. For example, a Next-Day Air order placed by 2:00 PM CST on Wednesday, 11/25, will be delivered on Friday, 11/27. Orders placed after 2:00 PM CST on Wednesday will process and ship out Monday, 11/30, to be delivered from there according to the selected shipping speed.

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Spike H-Bridge Relay

Spike H-Bridge Relay

P/N: 217-0220

Spike is a 20 Amp, H-Bridge Relay Module that is small enough to be remotely mounted almost anywhere on your robot. Spike is designed for driving small motors in forward, reverse, or stop (brake). Spike is opto-isolated at the signal input to protect the Robot Controller against motor noise and return currents. Requires a 3-wire cable for connection to the Robot Controller.

  • Ideal for 2 independent solenoids, light, pumps.
  • Design will accept auto-resetting circuit breaker.
  • Compact design.

Discontinued. Available while supplies last.


In Stock
Available while supplies last.

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The typical application is to power one motor with variable speed forward, reverse, or off (shunt brake).

Spike is not a PWM device. It can not be connected to an R/C hobby type receiver. The Spike is designed to plug into the Relay Ports from the NI roboRIO and legacy devices such as the FRC Digital Sidecar, Innovation First FRC-Robot Controller and Isaac16-RC.

Technical Specifications

Kit Contents (1) Spike Relay H-Bridge Module
Downloads & Docs Users Guide
Size and Installation Info
Battery In
  • Operating Voltage:9.5V to 15.5V
  • Power Connector:1/4" blade connectors
  • Maximum Current:20A continuous
  • Surge Current:100A for < 2 second
  • Output Connector:1/4" blade connectors
  • Signal Connector:Uses a standard non-shrouded 3-wire cable.
  • Control Signal:High: 3V min @ 4mA Low: ground (High Max 5-12V current limited to 40 mA.)
  • Max Switching:20 operations per second no load, 6 operation per minute for rated life at rated load.
  • Operate Time:5 ms typical
  • Initial Release Time:2 ms typical
  • Mechanical Life:10 million operations
  • Electrical Life:100K operations at 20A, 14VDC, 1mH
CAD Model 217-0220 (Spike H-Bridge Relay) (STEP)
Drawing 217-0220 (Spike H-Bridge Relay) (PDF)
Weight 0.12 lbs
Old Part Number (SKU) SPIKE-RELAY-H

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