C0G (NP0) Dielectric
General Specifications
C0G (NP0) is the most popular formulation of the “tempera-
ture-compensating,” EIA Class I ceramic materials. Modern
C0G (NP0) formulations contain neodymium, samarium and
other rare earth oxides.
C0G (NP0) ceramics offer one of the most stable capacitor
dielectrics available. Capacitance change with temperature
is 0 ±±0ppmꢀ/C which is less than ±0.±ꢁ ∆ C from -55/C
to +125/C. Capacitance drift or hysteresis for C0G (NP0)
ceramics is negligible at less than ±0.05ꢁ versus up to
±2ꢁ for films. ꢂypical capacitance change with life is less
than ±0.1ꢁ for C0G (NP0), one-fifth that shown by most
other dielectrics. C0G (NP0) formulations show no aging
characteristics.
ꢂhe C0G (NP0) formulation usually has a “Q” in excess
of 1000 and shows little capacitance or “Q” changes with
frequency. ꢂheir dielectric absorption is typically less than
0.6ꢁ which is similar to mica and most films.
PART NUMBER (see page 2 for complete part number explanation)
0805
5
A
101
J
A
T
2
A
Size
(L" x W")
Voltage
6.±V = 6
10V = Z
16V = Y
25V = ±
50V = 5
100V = 1
200V = 2
Dielectric
Capacitance Capacitance
Failure
Rate
Terminations
ꢂ = Plated Ni
and Sn
Packaging
2 = 7" Reel
Special
Code
A = Std.
Product
C0G (NP0) = A Code (In pF)
2 Sig. Digits +
Tolerance
B = ±.10 pꢃ
C = ±.25 pꢃ
D = ±.50 pꢃ
A = Not
Applicable
4 = 1±" Reel
7 = Bulk Cass.
9 = Bulk
Number of
Zeros
7 = Gold Plated
Contact
Factory For
1 = Pd/Ag Term
ꢃ = ±1ꢁ (≥ 25 pꢃ)
G = ±2ꢁ (≥ 1± pꢃ)
J = ±5ꢁ
Contact
Factory
For
Multiples
K = ±10ꢁ
Temperature Coefficient
Insulation Resistance vs Temperature
ꢀ Capacitance vs. Frequency
10,000
1,000
100
+2
+1
Typical Capacitance Change
Envelope: 0 30 ppm/°C
+0.5
0
-1
-2
0
-0.5
0
1KHz
10 KHz
100 KHz
1 MHz
10 MHz
-55 -35
+125
-15 +5 +25 +45 +65 +85 +105
40
60
80
100
0
20
Frequency
Temperature °C
Temperature °C
Variation of Impedance with Cap Value
Impedance vs. Frequency
0805 - C0G (NP0)
Variation of Impedance with Ceramic Formulation
Impedance vs. Frequency
1000 pF - C0G (NP0) vs X7R
0805
Variation of Impedance with Chip Size
Impedance vs. Frequency
1000 pF - C0G (NP0)
10 pF vs. 100 pF vs. 1000 pF
100,000
10
10.00
1206
0805
1812
1210
X7R
NPO
10,000
1,000
100
1.00
1.0
0.10
0.01
10 pF
10.0
0.1
10
1.0
0.1
100
1000
100 pF
1000 pF
100
1000
10
Frequency, MHz
Frequency, MHz
1
100
Frequency, MHz
1000
10
4