独石电容,ct4-0805b104k

品牌 国产 型号 ct4-0805b104k
介质材料 独石 应用范围 耦合
外形 圆柱形 功率特性 小功率
频率特性 中频 调节方式 固定
引线类型 轴向引出线 允许偏差 ±10(%)
耐压值 50(v) 标称容量 100000pf
损耗 0.035 额定电压 50(v)

电气性能标准the standard of the electrical properticac

检验项目

item

检验标准

test standard

   npo(n)

   cog(cg)

x7r(b)

z5u(e)

y5v(y、f)

 

电容量(c)

capacitance

在相应的误差

范围内

in the tolerance

在相应的误差

范围内

in the tolerance

在相应的误差

范围内

in the tolerance

在相应的误差

范围内

in the tolerance

损耗角正切(df)

dissipation

factor

  cr≥50pf

  df≤0.15%

  cr<50pf

df≤1.5[(150/cr)+7]      ×10-4

 

   ≤3.5%

 

≤5%

 

≤3.5%(150000pf以下)

≤10%(220000-470000pf)

≤15%(480000-1000000pf)

绝缘电阻(ir)

insulation

resistance

c≤ 10nf

r>10000 mω

c> 10nf

r.c> 100s

c≤ 25nf

r>4000 mω

c> 25nf

r.c> 100s

c≤ 25nf

r>4000 mω

c> 25nf

r.c> 100s

c≤ 25nf

r>4000 mω

c> 25nf

r.c> 100s

耐电压

dielectric

withstanding

voltage

 

2.5倍额定电压

2.5×rated voltage

 

2.5倍额定电压

2.5×rated voltage

 

2.5倍额定电压

2.5×rated voltage

 

2.5倍额定电压

2.5×rated voltage

测试条件

test condition

测试频率

test frequency

100khz

(c>1000pf,1khz)

1khz

1khz

1khz

测试电压

test voltage

1±0.2vdc

1±0.2vdc

0.3±0.2vdc

0.3±0.2vdc

绝缘电阻测试电压

test voltage of ir

额定电压

rated voltage

额定电压

rated voltage

额定电压

rated voltage

额定电压

rated voltage

环境温度

temperature

 

18℃~25℃

 

18℃~25℃

 

18℃~25℃

 

18℃~25℃

环境湿度

humidity

 

< 75%

 

< 75%

 

< 75%

 

< 75%

温度系数

temperature

coefficient

0±30ppm/℃

-55℃to +125℃

 

±15%

-55℃to +125℃

+22% to–56%

+10℃to +85℃

+30% to-80%

-25℃to +85℃

        

 

 

 

 

 

品质检验项目及可靠性试验quality inspection and rellability 

项目

item

检验标准

test specifications

检验方法

test methods

可焊性

solderablity

 

引线表面均匀沾锡,上锡面积不小于总面积的75%。

lead wire shall be soldered with uniformly coated on the axial  or radial direction over 3/4 of  the  circumferential direction.

将电容器引线浸入含25%酒精(或异丙醇)的松香溶液后浸入焊接槽温度为235±5℃的焊锡中2±0.5秒,浸入深度距离电容体2.5~3.0mm。

the lead wire of a capacitor shall be dipped into a 25% methanol solution of rosin and then into molten solder of 235±5℃ for 2±0.5 seconds ,in both cases the depth of dipping is up to about 2.5 to 3.0 mm from the root of lead wires.

耐焊性

resistance

to soldering

heat

 

外观

appearance

            无损伤

no marked defect

焊锡温度265±5℃,时间5±0.5秒,插入深度距离电容体2.5~3.0mm,插入速度1秒,试验后2~24小时测量。

the lead wire shall be immersed into the melted solder of 265±5℃,up to about 2.5 to 3.0mm from the main body for 5±0.5 sec and the specified items shall be measured after leaving for 2 to 24 hours.

容量变化δc/c

capacitance change

npo:≤5%

x7r:≤-5~+10%

y5v:≤-10~+20%

介电强度(引线间)

dielectric strength(between lead wires)

不失效

no failure

 

 

 

耐久性

list test

外观

appearance

无外观损伤

no  marked defect

条件

condition

npo

x7r

y5v

z5u

容量变化δc/c

capacitance change

      npo:≤2%

x7r:≤20%

y5v:≤30%

温度

temperature

+125℃

+85℃

 

d.f.

  npo:≤0.3%

x7r:≤5%

y5v:≤7%

时间

time

t=1000h

 

r.c>25s

电压

voltage

v=1.5vr

恢复时间

recovery time

24±1h