供应尚誉电子金属氧化膜电阻金属氧化膜电阻

本公司供应金属氧化膜电阻，品牌尚誉电子，型号金属氧化膜电阻。参数为：产品性质 热销，调节方式 不可调，营销方式 厂商直销，制作工艺 合成式，性能 不燃涂装，高可靠性，耐功率，温度系数 ±300%。质量保证，欢迎咨询洽谈。 三. 主要技术指标 MAIN SPECIFICATION 型号

Type 工作电压 WORKING 负荷电压 MAX OVERLOAD 额定功率RatedPowerat70℃ 电阻范围RESISTANCE VALUE RANGE RO 1/6W / 1/8W. 200V 400V 1/6W 0.1Ω－10MΩ RO 1/4W / I/4WS 250V 500V 1/4W 0.1Ω－10MΩ RO 1/2W / 1/2WS 350V 700V 1/2W 0.1Ω－10MΩ RO 1W / 1WS 500V 1000V 1W 0.1Ω－10MΩ RO 2W / 2WS 600V 1000V 2W 0.1Ω－10MΩ RO 3W / 3WS 700V 1000V 3W 0.1Ω－10MΩ RO 5W/ 5WS 800V 1000V 5W 0.1Ω－10MΩ 1.额定功率POWER RATING 额定功率的定义为在环境温度70℃输出功率。当环境温度超过70℃。 Power rating is defined as maximum power rating continuously applied under ambient temperature at 70℃.when the ambient temperature exceeds 70℃。 额定电压为交流或直流电压（频率为50Hz或60Hz）额定电压计算方式为： Rated voltage is defined as the DC or AC (effective Value at commercial frequency example 50 C/S,60 C/S)，Voltage when rated power is applied and can be calculated By the following： V = √ P×R V = RATED VOLTAGE P = RATED POWER (WATTS) R = NOMINAL RESISTANCE VALUE (OHM) When the calculated rated voltage exceeds the Maximum usable voltage flue shown in CHART, the Maximum usable voltage is defined as the voltage According to the power-decreasing curve shown in CHART. 3.产品性能 PERFORMANCE 项目 ITEM 性能及验收标准

PERFORMANCE AND QUALIITY ACCEPTANCE 测试方法

TEST METHOD

温度系数

Resistance to temperature

coefficient

1. Rx ＜ 100KΩ PPM/℃ ＜ +350~500 PPM/℃

2. 100KΩ＞ Rx ＜1MΩ

PPM/℃ ＜ 0 ~ -700PPM/℃

Rx ＞1MΩ

PPM/℃ ＜ 0 ~ -1500PPM/℃ R – RO 106

PPM/℃ = *

RO T- T0

R = Measured resistance（Ω）at T T ℃ 电阻实测值（Ω） Ro = Measured resistance （Ω）at To To ℃ 电阻实测值（Ω）

T = Measured test temperature(℃)

测试温度的实测值 To = Measured base temperature( ℃) 基准温度的实测值

短时负荷

Short time overload

≤ ±(1%R + 0. 5ohm)

Shall be no mechanical breakage

无破损（外观正常）

2.5倍额定电压（交流或直流），5秒。

AC or DC voltage 2.5times the rated

Voltage for 5 seconds .

耐电压

Voltage endurance

No breakdown or flashover

无击穿或飞弧

将电阻放于“V”形槽内，加1.42倍额定电压，保持一分钟.

Lay the resistor on the 90° angle metal “V” peak is 1.42 times as much as insulate voltage .

端子强度

Terminal strength

内外部无损伤

Shall be no mechanical breakage

施加3.5KG 30S的拉力

Pull test apply 3.5KG force to the lead in the direction of lead axis for 30±5 seconds.

耐焊性

Heat resistively

against soldering

≤ ± (1%R + 0.5ohm)

Shall be no mechanical breakage

无破损（外观正常）

将电阻引出端浸入350℃ ± 10℃的锡中，深度离电阻体3±0.05mm，时间3.5±0.5秒。放置一小时再测试。

Dip the lead in to a solder bath having a temperature of 350℃ ± 10℃ up to 3±0.05mm from the body of the resistor and hold it for 3.5±0.5seconds leave the resistor ,at room temperature 1 hours after ,then Measure.

项目 ITEM 性能及验收标准

PERFORMANCE AND QUALIITY ACCEPTANCE 测试方法

TEST METHOD

寿命试验

Load life test

≤ ±(5%R + 0.1ohm)

Shall be no mechanical breakage

无破损（外观正常）

在70℃的环境中施加额定电压，1小时通，0.5小时断1000小时。

In the constant temperature chamber 70℃ ,apply rated voltage for 1 hour and shut voltage for 0.5 hour and repeat this cycle for 1000 hours,

上锡效果

Solder ability

≥95%

浸入260℃±5℃的锡槽中，

时间5± 0.5秒。

Dip the lead in to a solder bath having a temperature of 260℃±5℃.

Time:5± 0.5seconds。

湿度负荷试验

Humidity load test

≤± (5% R+ 0.1ohm)

Shall be no mechanical breakage

无破损（外观正常）

温度在40℃± 2℃，相对湿度90 - 95％室内，用额定电压1.5小时开和关闭电压0.5小时，重复这个周期1000小时，离开1小时后在室温下测试。

In temperature chamber 40℃±2℃，relative humidity 90 – 95%,Apply rated voltage 1.5hour and shut voltage 0.5 hour repeat this cycle for 1000 hours, leave in room temperature for 1 hour after test,

耐熔性

Resistance to solvent

No visible damages to protective coating and marking.

外观无异常，标示能清楚辩认

三氯乙烷浸泡3分钟，用刷子刷10次。

The resistor shall be completely immersed for 3 min in IPA and rubbed 10 times with the whisk. 上限类别温度耐久性

Endurance at upper-limit temperature

≤±(5%R+0.1Ω)

在125℃温度下，持续时间1000H

At 125 ℃ temperature, duration of 1000h

不燃性

Flammability

不燃烧现象

No evidence of flaming

本体用试验火焰烧15秒，离开15秒，5次.

The test flame shall be applied and removed for 15 secretary respectively,and repeated cycle for 5times.