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.

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
ParameterTypical rangeNotes & selection driver
Accuracy±0.5% to ±1%
Power Rating0.25W to 2W per resistor
Isolation VoltageUp to 3000V RMS
Input Voltage Range0-1000V DC/AC
Output Voltage Ratio100:1, 1000:1 (configurable)
Operating Temperature-40°C to +85°C
Temperature Coefficient±50 ppm/°C to ±100 ppm/°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
IEC 61010-1, UL 61010-1, DIN EN 61326

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Voltage Divider

5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Beijing Huazheng Technology Co.,Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High Voltage Divider”
View source page ↗ beijing-huazheng.com · checked 2026-09-02
HV Hipot Electric Co., Ltd.
Chongqing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High Voltage Divider”
View source page ↗ hvhipot.com · checked 2026-08-28
Shenzhen Zenithsun Electronics Tech Co., Ltd.
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High Voltage Divider”
View source page ↗ oneresistor.com · checked 2026-09-12
Wuhan Goldhome Hipot Electrical Co.,Ltd
Wuhan, Hubei, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High Voltage Divider”
View source page ↗ uhvcn.com · checked 2026-08-28
Wuhan HUAYI Electric Power Technology Co.,Ltd.
Wuhan, Hubei, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High Voltage Divider”
View source page ↗ sinohipot.com · checked 2026-09-06

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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