INDUSTRY COMPONENT

Voltage Divider

A voltage divider is a passive linear circuit that produces an output voltage that is a fraction of its input voltage.

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Component Specifications

Definition
A voltage divider is a fundamental electrical circuit consisting of two or more resistors connected in series, designed to reduce a higher input voltage to a lower output voltage by dividing it proportionally according to the resistor values. It is commonly used in voltage sensing circuits to provide a scaled-down voltage signal for measurement, monitoring, or control purposes in industrial equipment.
Working Principle
The voltage divider operates on Ohm's Law and the principle of series resistance. When two resistors (R1 and R2) are connected in series across a voltage source (Vin), the output voltage (Vout) taken across R2 is calculated as Vout = Vin × (R2 / (R1 + R2)). This creates a fixed ratio output voltage that is proportional to the input voltage, enabling safe measurement of high voltages with low-voltage sensing devices.
Materials
Resistors: Typically made of carbon film, metal film, or wirewound materials; PCB: FR-4 glass epoxy; Connectors: Brass or phosphor bronze with tin or gold plating; Housing: ABS plastic or aluminum for protection.
Technical Parameters
  • Accuracy ±0.5% to ±1%
  • Power Rating 0.25W to 2W per resistor
  • Isolation Voltage Up to 3000V RMS
  • Input Voltage Range 0-1000V DC/AC
  • Output Voltage Ratio 100:1, 1000:1 (configurable)
  • Operating Temperature -40°C to +85°C
  • Temperature Coefficient ±50 ppm/°C to ±100 ppm/°C
Standards
ISO 9001, IEC 61010-1, UL 61010-1, DIN EN 61326

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Voltage Divider.

voltage divider voltage sensor resistor divider industrial voltage measurement electrical components voltage sensing circuit Voltage Divider in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Voltage Sensing Circuit

A circuit that measures and monitors the voltage level of a battery or power source.

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Bias Circuit

A circuit that provides a stable DC operating point for active components in a phase shifter.

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Engineering Analysis

Risks & Mitigation
  • Overheating due to excessive power dissipation
  • Accuracy drift from temperature variations
  • Electrical shock hazard if insulation fails
  • Measurement errors from loading effects
FMEA Triads
Trigger: Resistor value drift due to temperature or aging
Failure: Inaccurate voltage measurement leading to system malfunction
Mitigation: Use precision resistors with low temperature coefficients; implement regular calibration
Trigger: Overvoltage condition exceeding component ratings
Failure: Component failure and potential circuit damage
Mitigation: Incorporate overvoltage protection devices; use resistors with adequate voltage ratings
Trigger: Poor connection or solder joint
Failure: Intermittent or complete loss of signal
Mitigation: Implement proper soldering techniques; use vibration-resistant connectors

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Resistor tolerance typically ±0.1% to ±1% for precision applications
Test Method
Voltage ratio verification using calibrated multimeters; insulation resistance testing; temperature cycling tests

Buyer Feedback

★★★★☆ 4.6 / 5.0 (31 reviews)

"Reliable performance in harsh Electrical Equipment Manufacturing environments. No issues with the Voltage Divider so far."

"Testing the Voltage Divider now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What is the main purpose of a voltage divider in industrial applications?

The main purpose is to safely reduce high voltages to measurable levels for monitoring, protection, and control systems in industrial equipment.

How do I select resistors for a voltage divider circuit?

Select resistors based on required voltage ratio, power rating, accuracy, temperature stability, and environmental conditions. Use precision resistors for high-accuracy applications.

Can voltage dividers be used for AC voltage measurement?

Yes, but they must be designed with proper frequency response and safety considerations. Capacitive dividers are often used for high-frequency AC applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Voltage Comparator Voltage Divider / Sense Resistor