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電 子 學 實 驗 室
   
【基礎練習】-電容(Capacitor)
☆電容編號換算:

| 第一位 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 第二位 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| 第三位 |
100 |
101 |
102 |
103 |
104 |
105 |
106 |
107 |
108 |
109 |
例如:編號104電容:10*104pF=100,000pF=0.1uF
編號103電容:10*103pF=10,000pF=0.01uF
編號102電容:10*102pF=1,000pF=0.001uF
編號472電容:47*102pF=4.7nF
p=10-12
n=10-9
u=10-6
☆電容誤差以字母標示如下表:
|
|
≦10pF |
≧10pF |
|
J |
|
±5% |
|
B |
±0.1pF |
|
K |
|
±10% |
|
C |
±2.25pF |
|
M |
|
±20% |
|
D |
±0.5pF |
|
P |
|
-0~+100% |
|
E |
|
±25% |
|
S |
|
-20~+50% |
|
F |
±1pF |
±1% |
|
W |
|
-0~+200% |
|
G |
|
±2% |
|
X |
|
-20~+40% |
|
H |
|
±2.5% |
|
Z |
|
-20~+80% |
(表一)電容誤差
|
【陶瓷電容】 |
|
|
 |
|
|
|
10pF |
|
|
 |
 |
 |
|
100pF |
1,000pF |
10,000pF=0.01uF |
 |
 |
 |
|
100,000pF=0.1uF |
0.1uF±20% |
150pF |
 |
 |
 |
|
220pF |
240pF |
4700pF±10% |
|
|
|
|
|
|
|
|
|
【電解電容】(有極性) |
|
|
 |
 |
 |
|
長腳為正極(+)
短腳為負極(-) |
1000uF & 4700uF
25V |
1000uF
50V & 25V |
 |
 |
 |
|
1uF, 63V |
10uF, 63V |
33uF,63V |
 |
 |
|
|
47uF, 63V |
100uF, 63V |
|
 |
 |
 |
|
1000uF, 25V |
1000uF, 50V |
4700uF, 25V |
 |
|
|
|
爆掉的電容 |
|
|
|
|
|
|
|
|
|
|
|
【麥拉電容】 |
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
【鉭質電容】(有極性) |
|
|
 |
 |
 |
|
47uF |
0.22uF |
10uF |
|
|
|
|
|