Bistable Switch Module 2A DC 2–5V 0.5µA Low Power One-Key

Bistable Switch Module — Compact, Low-Power, One-Key Control

Looking for a reliable, ultra-low-power switching solution for your electronics project? This Bistable Switch Module delivers stable on/off control with a continuous load rating of 2A and an operating voltage range of DC 2–5V. With a standby current of just 0.5µA, it's engineered for energy-conscious designs where every microamp counts — ideal for battery-powered circuits, IoT devices, and DIY automation projects.

A single key press toggles the output and it stays in that state without requiring continuous power — that's the bistable advantage. Whether you're building a smart home gadget, a custom control panel, or an embedded electronics prototype, this module keeps things simple and efficient.

Key Features

• Bistable operation: Latches in ON or OFF state; no continuous signal needed to hold position
• Ultra-low standby current: Only 0.5µA draw — perfect for battery-powered applications
• Continuous load capacity: Supports up to 2A, covering a wide range of small electronic loads
• Wide operating voltage: DC 2–5V, compatible with most microcontrollers and logic circuits
• One-key trigger: Simple single-button control for clean, minimalist circuit design
• Compact form factor: Measures just 1.6 × 1.5 × 0.3 cm (0.62 × 0.59 × 0.11 in) — fits into tight enclosures with ease
• Durable construction: Plastic + metal build for lasting reliability
• Available in 3 color options to suit your project or preference

Specifications

• Operating Voltage: DC 2–5V
• Continuous Load: 2A
• Standby Current: 0.5µA
• Dimensions: 1.6 × 1.5 × 0.3 cm / 0.62 × 0.59 × 0.11 in
• Material: Plastic + Metal
• Switch Type: Bistable (latching)
• Trigger: One-key momentary press

What's in the Box?

Available in quantities of 1 or 2 modules. Select the pack size that suits your project needs at checkout.

Who Is This For?

This bistable switch module is a go-to component for electronics hobbyists, makers, engineers, and students working with Arduino, Raspberry Pi, or custom microcontroller boards. It's equally useful for home automation DIY builds, low-power sensor nodes, and any project where a latching power switch is needed.

For more information on electronic component safety standards, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What does "bistable" mean for this switch module?

A: A bistable switch module has two stable states — ON and OFF. Once triggered by a single key press, it latches in that state and holds it without requiring any continuous signal or power. This makes it ideal for battery-powered and low-power electronics applications.

Q: What voltage and current does this bistable switch module support?

A: This module operates on DC 2–5V, making it compatible with most microcontrollers, Arduino boards, and 3.3V/5V logic systems. It supports a continuous load of up to 2A, suitable for driving small motors, LEDs, relays, or other low-power loads.

Q: How small is this switch module, and will it fit in my project enclosure?

A: The module measures just 1.6 × 1.5 × 0.3 cm (approximately 0.62 × 0.59 × 0.11 inches), making it one of the most compact bistable switch solutions available. Its slim profile fits easily into tight enclosures, custom PCB layouts, and miniature DIY builds.

Q: How many modules come in the pack?

A: This product is available in packs of 1 or 2 modules. Select your preferred quantity at checkout to suit your project requirements.