PBS33B 12mm Momentary Push Button Switch — 1A DC12V, SPST NO, 2‑pin, pre‑soldered blue wire — available in packs of 5 / 20 / 100 Key benefits Simple, reliable momentary switching for low-voltage projects — closes only while pressed (self-resetting). Ready-to-use wiring: two pins plus a pre-soldered blue lead speeds installation and reduces assembly time. Compact 12mm round form factor fits small panels and tight enclosures without bulky hardware. Clear electrical rating (1A at DC12V) makes selection straightforward for compatible circuits. Features and important attributes Model: PBS33B Function: Momentary (self-resetting) push button, normally open (SPST NO) Electrical rating: 1A at DC12V Size: 12mm round actuator Terminals: 2 pins plus one pre-soldered blue wire for easy connection Pack options: available in quantities of 5, 20, or 100 pieces Simple, single-pole single-throw action suitable for repeated manual operation Why choose this switch Saves time on assembly: pre-soldered wire reduces the need for crimping or additional wiring steps. Predictable behavior: normally open, momentary action is ideal for start/stop, reset, and input pulses. Versatile for low-current 12V systems where a compact user interface switch is needed. Practical use scenarios Prototyping and hobby electronics: quick, portable push-button inputs for microcontroller projects (Arduino, Raspberry Pi interfaces with appropriate protection). Control panels and instruments: tactile momentary control for reset, jog, or test buttons in compact enclosures. Low-voltage accessory switching: user-actuated control for 12V lighting circuits, small relays, or signaling devices within the 1A rating. Installation and compatibility notes Designed for low-voltage DC use at the specified rating (1A, 12V). Confirm system currents do not exceed the rating. Includes a pre-soldered blue wire for direct connection; use appropriate wiring practices and insulation when integrating into assemblies. SPST NO behavior means the circuit is open until the button is pressed; plan wiring accordingly for pull-up/pull-down or relay driver arrangements. What’s in the package PBS33B 12mm momentary push button switch, 1A DC12V, SPST NO, 2 pins with pre-soldered blue wire. Available in pack sizes of 5, 20, or 100 pieces as specified. This description reflects the PBS33B model and its specified ratings and configuration. Use within the stated electrical limits and intended low-voltage applications.