DONGKER Voltage Comparator Module Dual 4.5V-30V Over Under Protection

Description

Product Overview

The DONGKER Voltage Comparator Module is engineered to provide precise voltage monitoring and protection for a wide range of industrial applications. Built with high‑quality semiconductor components, the module supports a voltage input range from 4.5 V to 30 V and offers dual‑channel comparison capabilities. Its compact dimensions (0.51 x 1.1 x 0.51 in) and lightweight design (0.32 oz) make it easy to integrate into tight spaces, while the robust PCB layout ensures reliable performance under harsh environmental conditions. The module features three selectable working modes, allowing users to configure over‑voltage, under‑voltage, or combined protection schemes according to specific system requirements. Adjustable reference voltage thresholds enable fine‑tuning of protection levels, ensuring that downstream equipment operates within safe limits.

Usage

This comparator module is ideal for industrial control equipment, where accurate voltage detection is critical for system stability. It can be employed in signal conversion applications, transforming sine wave inputs into square wave outputs for digital logic circuits. Additionally, the module serves as a reliable component in instrumentation test rigs, experimental data monitoring stations, and protective circuits for motor drives, power supplies, and sensor networks. Its adjustable thresholds and dual‑channel design allow engineers to monitor multiple voltage lines simultaneously, simplifying wiring and reducing the need for additional components. The module’s three operating modes provide flexibility for both over‑voltage and under‑voltage scenarios, making it suitable for protective shutdown, alarm signaling, or automated control actions.

Why Choose Us

Choosing the DONGKER Voltage Comparator Module means selecting a product backed by rigorous quality assurance processes and a commitment to customer satisfaction. Each unit undergoes comprehensive testing to verify performance across the full voltage range and to ensure consistent threshold accuracy. DONGKER provides responsive after‑sales support, offering technical assistance and replacement services to guarantee uninterrupted operation of your systems. The module’s design emphasizes durability, with heat‑resistant components and protective coatings that extend lifespan even in high‑temperature or high‑vibration environments. By integrating this module, you benefit from reduced system complexity, lower total cost of ownership, and enhanced reliability for critical industrial applications.

Key Features

• Dual‑channel voltage comparison for simultaneous monitoring of two signals
• Adjustable reference thresholds allow precise protection level setting
• Three selectable working modes provide flexibility for over‑, under‑, or combined protection
• Compact size and lightweight design simplify integration into space‑constrained panels
• Dedicated customer support and after‑sales service ensure reliable long‑term operation

FAQ

What voltage range does the module support?

The module operates from 4.5 V up to 30 V, covering most low‑to‑medium voltage industrial applications.

Can the threshold values be adjusted?

Yes, the reference voltage thresholds are fully adjustable using external resistors, allowing fine‑tuning to match your system requirements.

How many operating modes are available?

Three modes are provided: over‑voltage protection, under‑voltage protection, and a combined mode that monitors both conditions simultaneously.

Is the module suitable for harsh environments?

Designed with robust components and protective coatings, the module can withstand high temperatures, vibration, and electrical noise typical of industrial settings.

What kind of support does DONGKER offer after purchase?

DONGKER offers responsive technical assistance, warranty coverage, and replacement parts to ensure your equipment remains operational and protected.