Abstract: A circuit board having at least one resilient leg with a catch constructed to releasably engage a shoulder of a body to releasably retain the circuit board in the body. The circuit board may be slidably inserted into a slot of the body until the catch engages the shoulder to securely and releasably retain the circuit board within the body. Desirably, the circuit board has an outwardly extending shoulder at the end of the leg opposite the catch to limit the extent of insertion of the circuit board into the body so that the catch remains generally adjacent to the shoulder. This eliminates the play or looseness in the connection between the circuit board and body by preventing the circuit board from being significantly advanced beyond the point wherein the catch engages the shoulder.

Abstract: A solenoid valve that includes a valve body in which a valve spool is slidably mounted, and a solenoid assembly mounted at one end of the valve body. The solenoid assembly includes a solenoid having a plunger operatively coupled to the spool and a solenoid coil for actuating the plunger. A solenoid valve driver circuit includes a circuitboard assembly that has a power supply responsive to external power for supplying electrical power to the driver circuit and the solenoid coil, and a microprocessor-based control circuit responsive to external control signals for controlling actuation of the solenoid coil. The solenoid assembly, including the solenoid and the circuitboard assembly, comprises a unitary molded or potted assembly.