Class I and II Commercial Chip (COG/NPO/X7R)

Note: These are standard sizes (in inches). We can manufacture any size required. Please consult the factory for special builds.

SIZE 0402 0504 0603 0805 1206 1210 1515 1825 2225
LENGTH-NOM 0.040 0.050 0.060 0.080 0.120 0.120 0.150 0.180 0.220
WIDTH-NOM 0.020 0.040 0.030 0.050 0.060 0.100 0.150 0.250 0.250
THICK-MAX 0.024 0.044 0.035 0.055 0.065 0.065 0.130 0.150 0.150
END BAND 0.010
± 0.005
0.010
± 0.005
0.010
± 0.005
0.015
± 0.008
0.020
± 0.010
0.020
± 0.010
0.030
± 0.015
0.030
± 0.015
0.030
± 0.015

Dimensions are ±5% length and width or .010;, whichever is greater.

The following table represents our standard listing of MLC’s produced from our ultra-stable EIA Class I COG dielectric. In addition to the above listed standard case sizes, WCI is ideally situated to custom fabricate alternative size, thickness and/or voltage ratings per individual requirements. Should you not find what you are looking for please call the factory.

COG capacitors are very well suited to applications requiring extremely stable electrical properties given time, temperature and voltage. Common applications include aerospace, defense, pulse energy detonation and higher end consumer needs requiring a greater degree of safety/reliability.

COG/NPO - Min/Max Cap Values

Min Cap: 1R0 1R0 1R0 1R0 1R0 100 100 331 391
SIZE 0402 0504 0603 0805 1206 1210 1515 1825 2225
16V 221 182 122 472 123 223 393 104 124
25V 181 152 102 392 103 183 333 823 104
50V 151 122 821 332 822 153 273 823 104
100V 121 102 681 272 682 123 253 683 823
200V 821 681 471 182 472 103 223 563 683

The following table represents our standard listing of MLC’s produced from our stable EIA Class II X7R dielectric. In addition to the above listed standard case sizes, WCI is ideally situated to custom fabricate alternative size, thickness and/or voltage ratings per individual requirements. Should you not find what you are looking for please call the factory.

Class II X7R capacitors are very well suited to applications allowing for predictable changes in electrical properties given time, temperature and voltage. A temperature coefficient of ±15% is standard and typical results are detailed above. Common applications include aerospace, defense, pulse energy detonation and higher end consumer needs requiring a greater degree of safety/reliability.

X7R - Min/Max Cap Values

Min Cap: 151 151 151 151 221 221 221 561 102
SIZE 0402 0504 0603 0805 1206 1210 1515 1825 2225
16V 472 333 223 104 274 394 105 225 225
25V 392 273 183 823 224 334 824 185 205
50V 392 273 183 823 224 334 684 185 185
100V 332 223 153 563 154 274 564 155 185
200V 222 153 103 273 104 154 474 125 155

Temperature Coefficient

COG/NPO (N)

Material: COG/NPO
Operation Temperature Range: -55°C to 125°C.
Temperature Coefficient: ± 30ppm/°C.
Dissipation Factor: 0.1% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: 0% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

COG/NPO (M) RoHs Compliance Up to 250°C

Material: COG/NPO RoHs Compliance Up to 250°C
Operation Temperature Range: -55°C to 250°C.
Temperature Coefficient: ± 30ppm/°C.
Dissipation Factor: 0.1% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
at 250°C > 1GΩ or 10MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: 0% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

C0G/NP0 (P) Stable High Temperature (300°C)

Material: C0G/NP0 Stable High Temperature (300°C)
Operation Temperature Range: -55°C to 300°C.
Temperature Coefficient: ± 30ppm/°C.
Dissipation Factor: 0.1% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
at 300°C > 1GΩ or 10MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: 0% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

Temperature Coefficient

X7R (Z)

Material: X7R (BR)
Operation Temperature Range: -55°C to 125°C.
Temperature Coefficient: ±15%
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

X7R (B) - RoHs Compliance

Material: X7R (BR) RoHs Compliance
Temperature Coefficient: ±15%
Operation Temperature Range: -55°C to 125°C.
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
Dielectric withstanding Voltage: ≤500V is 250% rated voltage.
>500V - 1KV is 150% rated voltage.
>1KV is 120% rated voltage.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

X7R (X)

Material: X7R (BX)
Temperature Coefficient: ±15%
Voltage Coefficient: -25% Max.
Operation Temperature Range: -55°C to 125°C.
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

X8R (U) High Temperature 160°C

Material: X8R High Temperature 160°C
Operation Temperature Range: -55°C to 160°C.
Temperature Coefficient: + 15% -25% Max
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
at 160°C > 1GΩ or 10MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

High Temp X9R (V) Class II (200°C)

Material: High Temp X9R Class II (200°C)
Operation Temperature Range: -55°C to 200°C.
Temperature Coefficient: +15% -45% Max
Cap Drop at 200°C: -45% Max
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
at 200°C >1GΩ or 10MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

X7R (W)

Material: X7R (BZ)
Operation Temperature Range: -55°C to 125°C.
Temperature Coefficient: ±15%
Dissipation Factor: 2.5% max at 25°C.
Insulation Resistance: at 25°C > 100GΩ or 1000MΩμF or whichever is less.
at 125°C > 10GΩ or 100MΩμF or whichever is less.
Dielectric withstanding Voltage: 250% for parts ≤250V.
150% for parts 250V-1KV.
120% for parts >1KV.
Aging Rate: <2% per decade.
Testing Parameters: 1kHz, 1.0 ± 0.2VRMS, 25°C.
1mHz for capacitance ≤ 100pF.
Temperature Coefficient, Percent Vs. Degrees C

Ordering Information

Prefix Case Size Dielectric Capacitance Tolerance Termination Voltage Suffix
WC 0805 N 272 K D 101  
WC - Standard
WCR - RoHS
Chip Size N = NPO
X = X7R

See Dielectric Characteristics
Capacitance Value Code in pF
1st two digits significant, 3rd the power of ten
i.e.: 102 = 1000pF
F = ±1%
G = ±2%
J = ±5%
K = ±10%
M = ±20%
Z = +80%/-20%
V = +100%
A = Ag
D = PdAg
N = Ni(Sn)
S = Solder plated over nickel
SN = Tin over nickel plated (RoHS)
G = Au over nickel plated
Voltage Code
1st two digits significant, 3rd the power of ten
i.e.
500 = 50V
101 = 100V
-X### = Special Thickness

Dielectric Codes

Prefix RoHS Dielectric Code Material Temperature Coefficient
Please see Dielectric Characteristics for more information
    N COG/NPO -55°/+125°C
    M COG/NPO Hi Temp -55°/+300°C
 WC"R"  Y P NPO Hi Temp -55°/+250°C
  Y R N2T -55°/+125°C/ ±500pm
  Y S N2T -55°/+125°C/ ±300pm
  Y T N2T Hi Temp -55°/+200°C
    Z X7R/BR BR -55°/+125°C
 WC"R"  Y B X7R/BR BR -55°/+125°C
    X BX/MIL BX -55°/+125°C VC -25% max
    U X8R Hi Temp -55°/+160°C
    V X9R Hi Temp -55°/+200°C
  Y W X7R/BZ BZ -55°/+125°C
  Y Y Y5V Y5V -30°/+85°C

Prefixes

Prefix Description
WC Standard
WCN Non standard Requirements
High Temperature
High Reliability
WCR RoHS Compliant
HT High Temperature (Potted Units)
HTN High Temp w/ High Reliability Testing (Potted Units)
SM Surface Mount
SMN Surface Mount with High Reliability Testing

Capacitance Tolerance Codes

Code Tolerance
F ± 1%
G ± 2%
J ± 5%
K ± 10%
M ± 20%
Z +80%/-20%
V + 100%

Suffixes

Suffix Description
-NM No Marking
-X### Special Thickness