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光颉MFR插件精密电阻

光颉MFR插件精密电阻选型需分别核对阻值、初始精度、温度系数与稳定性,排阻还应区分绝对误差与匹配误差。

0318 / 0623 / 0932 / 1145 / 1550

Metal Film Leaded Precision Resistor - MFR Series
Metal Film Leaded Precision Resistor - MFR Series Files Download

Derating Curve
Derating Curve

Hot-Spot Temperature
Hot-Spot Temperature

Metal film leaded precision resistor , excellent stability and tight tolerance , extremely low TCR , high power is available for telecommunication and medical equipment.

Features

  • Excellent overall stability.

  • Very tight tolerance down to ±0.05%.

  • Extremely low TCR down to ±5 PPM/°C.

  • High power rating up to 3 Watts.

  • Excellent ohmic contact.

Applications

  • Telecommunication

  • Medical Equipment

Construction

Metal Film Leaded Precision Resistor - MFR Series Construction

Part Numbering

Metal Film Leaded Precision Resistor - MFR Series Part Numbering

Standard Electrical Specifications

Item
Type
Power Rating
at 70°C
Operating Temp.
Range
Max.
Operating Voltage
Max.
Overload Voltage
Dielectric
Withstanding
Voltage
Resistance Range TCR
(PPM/°C)
±0.05% ±0.1% ±0.25% ±0.5% ±1%
0318 1/8W -55 ~ +155°C 150V 300V 300V - 10Ω-1MΩ 10Ω-4.99MΩ ±15
10Ω-1MΩ 10Ω-10MΩ ±25
±50
- 1Ω-1MΩ 1Ω-10MΩ 0.1Ω-10MΩ ±100
0623 1/4W -55 ~ +155°C 250V 500V 500V 10Ω-1MΩ - ±5
10Ω-1MΩ - ±10
10Ω-1MΩ 10Ω-10MΩ ±15
±25
- 10Ω-1MΩ 10Ω-10MΩ ±50
- 1Ω-1MΩ 1Ω-10MΩ 0.1Ω-10MΩ ±100
0932 1/2W -55 ~ +155°C 350V 500V 500V 10Ω-1MΩ - ±5
10Ω-1MΩ - ±10
10Ω-1MΩ 10Ω-10MΩ ±15
±25
- 10Ω-1MΩ 10Ω-10MΩ ±50
- 1Ω-1MΩ 1Ω-10MΩ 0.1Ω-10MΩ ±100
1145 1W -55 ~ +155°C 500V 700V 700V - 10Ω-1MΩ 10Ω-4.99MΩ ±15
10Ω-1MΩ 10Ω-10MΩ ±25
±50
- 1Ω-1MΩ 1Ω-10MΩ 0.1Ω-10MΩ ±100
1550 2W -55 ~ +155°C 500V 1000V 1000V - 10Ω-1MΩ 10Ω-4.99MΩ ±15
10Ω-1MΩ 10Ω-10MΩ ±25
±50
- 1Ω-1MΩ 1Ω-10MΩ 0.1Ω-10MΩ ±100



型号核对与适用条件

精度与温漂

初始精度不能替代温度系数,应结合工作温度分别评估。

工作负荷

核对功率、工作电压、温升及长期稳定性条件。

封装与匹配

确认封装、连接结构,网络电阻按具体拓扑核对。

具体规格、测试条件与订货选项,请以对应品牌、系列和完整型号的制造商文件为准。

相关技术资料

选型与采购常见问题

相同阻值的电阻能直接替换吗?

还需核对精度、温度系数、额定功率、工作电压、脉冲、封装和可靠性要求,并在实际电路中验证。

低阻值电阻为什么要关注连接方式?

测量回路中的导线与接触电阻会影响结果,应核对器件端子、焊盘以及两端或四端测量方式。