行业组件数据 · 2026

电压分压器/检测电阻

A precision resistor network used to measure voltage levels in industrial feedback control systems.

技术定义与适配语境
典型 电压分压器/检测电阻 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A voltage divider/sense resistor is a passive electrical component consisting of two or more resistors connected in series to create a specific output voltage proportional to the input voltage. In industrial feedback networks, it serves as a critical sensing element for monitoring voltage levels, enabling precise control and protection of electrical systems by converting high voltages to measurable low-voltage signals.

组件规格

定义
A voltage divider/sense resistor is a passive electrical component consisting of two or more resistors connected in series to create a specific output voltage proportional to the input voltage. In industrial feedback networks, it serves as a critical sensing element for monitoring voltage levels, enabling precise control and protection of electrical systems by converting high voltages to measurable low-voltage signals.
工作原理
Operates on Ohm's Law (V=IR) and the voltage divider rule, where the output voltage (Vout) is determined by the ratio of resistances: Vout = Vin * (R2/(R1+R2)). In feedback applications, it provides a scaled-down voltage signal to monitoring circuits like ADCs or comparators for real-time system adjustment.
材料
High-stability materials: Thick-film or thin-film resistors on ceramic substrates (e.g.alumina)with nickel-chromium (NiCr) or tantalum nitride (TaN) resistive elementsand silver-palladium terminations. Encapsulated in epoxy or silicone for environmental protection.
Tolerance
±0.1% to ±1%
Power Rating
0.25W to 2W
Voltage Rating
Up to 500V
Resistance Range
1Ω to 10MΩ
Operating Temperature
-55°C to +155°C
Temperature Coefficient
±25 ppm/°C to ±100 ppm/°C
标准
ISO 9001IEC 60115DIN 41494

行业分类与别名

电压分压器/检测电阻 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Resistor material degradation due to overheating->Resistance drift or open circuit->Use resistors with high power ratings and adequate cooling; implement thermal monitoring.
Moisture ingress in harsh environments->Corrosion or insulation breakdown->Apply conformal coating or use encapsulated resistors; follow IP ratings for enclosures.

工业生态与工程逻辑

0
Thermal drift affecting accuracy
1
Overvoltage causing failure
2
Contamination leading to short circuits

合规与检测

tolerance
±0.5% typical for industrial grade
test method
IEC 60115-1 for electrical testing, including resistance measurement, load life, and environmental stress tests.

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between a voltage divider and a sense resistor?

A voltage divider uses multiple resistors to scale down voltage, while a sense resistor is a single low-value resistor for current sensing; in combined components, they integrate both functions for voltage monitoring in feedback loops.

How do I select a voltage divider/sense resistor for industrial use?

Consider accuracy (tolerance), power rating, temperature stability (TCR), voltage rating, and environmental robustness based on application requirements like motor drives or power supplies.

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