electronics:capacitors

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Table of Contents

Capacitors
- Ceramic
- Sizes
Resources

Capacitors

Common voltage ratings: 6.3, 10, 16, 25, 50, 100, 250, 500

Ceramic

Max capacitance per package size

Class 2 och Class 3 dielectrics använder följande tabell

First character		Second character		Third character
Letter	Low Temp	Digit	High temp	Letter	Change
X	-55°C	2	45°C	D	± 3.3%
Y	-30°C	4	68°C	E	± 4.7%
Z	+10°C	5	85°C	F	± 7.5%
		6	105°C	P	± 10%
		7	125°C	R	± 15%
		8	150°C	S	± 22%
		9	200°C	T	+ 22% / - 33%
				U	+ 22% / - 56%
				V	+ 22% / - 82%

Vanliga är X5R och X7R

Class 1 dielectrics använder följande tabell

First character		Second character		Third character
Temp coefficient		Coefficient multiplier		Tolerance of coefficient
Letter	α 10^-6/K	Digit	Multiplier	Letter	ppm/K
C	0.0	0	-1	G	± 30
B	0.3	1	-10	H	± 60
L	0.8	2	-100	J	± 120
A	0.9	3	-1000	K	± 250
M	1.0	4	+1	L	± 500
P	1.5	6	+10	M	± 1000
R	2.2	7	+100	N	± 2500
S	3.3	8	+1000
T	4.7
V	5.6
U	7.5

Sizes

Minimum size for X7R ceramics

(V)	50	25	16	10	6.3
(µF)
22.00	2220	1210	1210	1206	1206
10.00	1210	1206	1206	0805	0805
4.70	1210	0805	0805	0805	0805
2.20	1206	0805	0805	0603	0603
1.00	0805	0603	0603	0603	0402
0.47	0805	0603	0603	0603	0603
0.22	0603	0603	0402	0402	0402
0.10	0402	0402	0402	0402	0402

Resources

Good talk about capacitors from KEMET

K-Sim 3 – Simulator for many of the parameters of KEMET capacitors

Sim Surfing – Muratas simulator

electronics/capacitors.1645079999.txt.gz · Last modified: 2022/09/12 00:30 (external edit)