SMC D-B54(D-B51) Inline Reed Autoswitch

The SMC D-B54 (also known as D-B51) is an inline reed-type auto switch designed for mounting on pneumatic cylinders to detect piston position. Model: D-B54 (also marked D-B51 on some versions) Manufacturer: SMC Corporation Type: Reed Auto Switch (inline mount) Mounting Style: In-line, direct groove mount on cylinder body Voltage Range: 5–240 VDC / VAC Current Rating: Up to 100 mA Output Type: Reed switch (contact type) Lead Wire: 2-wire, typically 3 m or 5 m PVC cable Indicator: LED operation indicator (lit when ON) Response Time: 1.2 ms max Protection: IP67 (IEC standard) Application: Position sensing on SMC pneumatic actuators and cylinders (e.g., series C85, C95, CP96, MGP, etc.) Housing: Rectangular, compact resin body This switch is suitable for general-purpose cylinder position detection and compatible with a wide range of SMC actuators using T-slot or tie-rod mounting with optional brackets. Please review pictures carefully and let us know if you have any questions!