Wikipedia has this table which explains the EIA designations...
The EIA three-character code for the material capacitance-temperature slope is derived from the low and high temperature limit, and the range of capacitance change.
ppm/°C | Multiplier | Tolerance in ppm/°C (25-85 °C) |
---|---|---|
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 |
Thanks Ken.
That is interesting because I have seem another label system that explains the class 2 and 3 ceramics, but this is a different system.
I don't know who devised this standard, whether it was EIA or whoever but it is interesting that the NP0 comes from this and the C0G comes from the EIA that you revealed. I suppose like many things in electronics (and life) there are more than one standard.
First symbol (a letter) | Low temperature requirement | Second symbol (a number) | High Temperature requirement | Third Symbol (a letter) | MAX. Capacitance change over temperature |
Z | -10 °C | 2 | 45 °C | A | +1% |
Y | -30 °C | 4 | 65 °C | B | +/- 1.5% |
X | -55 °C | 5 | 85 °C | C | +/- 2.2% |
6 | 105 °C | D | +/- 3.3% | ||
7 | 120 °C | E | +/- 4.7% | ||
8 | 150 °C | F | +/- 7.5% | ||
P | +/- 10.0% | ||||
R | +/- 15.0% | ||||
S | +/- 22.0% | ||||
T | +22%, -33% | ||||
U | +22%, -56% | ||||
V | +22%, -82% |
Thanks Ken.
That is interesting because I have seem another label system that explains the class 2 and 3 ceramics, but this is a different system.
I don't know who devised this standard, whether it was EIA or whoever but it is interesting that the NP0 comes from this and the C0G comes from the EIA that you revealed. I suppose like many things in electronics (and life) there are more than one standard.
First symbol (a letter) | Low temperature requirement | Second symbol (a number) | High Temperature requirement | Third Symbol (a letter) | MAX. Capacitance change over temperature |
Z | -10 °C | 2 | 45 °C | A | +1% |
Y | -30 °C | 4 | 65 °C | B | +/- 1.5% |
X | -55 °C | 5 | 85 °C | C | +/- 2.2% |
6 | 105 °C | D | +/- 3.3% | ||
7 | 120 °C | E | +/- 4.7% | ||
8 | 150 °C | F | +/- 7.5% | ||
P | +/- 10.0% | ||||
R | +/- 15.0% | ||||
S | +/- 22.0% | ||||
T | +22%, -33% | ||||
U | +22%, -56% | ||||
V | +22%, -82% |