MLCC
Safety Certified MLCC Capacitors
Safety Certified capacitors
Electrical Details
Knowles Safety Certified capacitors comply with
international UL and TÜV specifications to offer
designers the option of using a surface mount ceramic
multilayer capacitor to replace leaded film types.
Offering the benefits of simple pick-and-place
assembly, reduced board space required and lower
profile, they are also available in a FlexiCap™ version to
reduce the risk of mechanical cracking.
Capacitance Range
4.7pF to 22nF
Temperature Coefficient of
Capacitance (TCC)
C0G/NP0
0 ± 30ppm/˚C
X7R
±15% from -55˚C to +125˚C
Cr > 50pF ≤0.0015
C0G/NP0
Dissipation Factor
Cr ≤ 50pF = 0.0015(15÷Cr+0.7)
X7R
Knowles high voltage capacitor expertise means the
range offers among the highest range available of
capacitance values in certain case sizes. Applications
include: modems, AC-DC power supplies and where
lightning strike or other voltage transients represent a
threat to electronic equipment.
≤ 0.025
Insulation Resistance (IR)
100G or 1000secs (whichever is the less)
Dielectric Withstand Voltage (DWV)
Voltage applied for 5 ±1 seconds, 50mA
charging current maximum
Ageing Rate
• Surface mount multilayer capacitors
C0G/NP0
Zero
X7R
5.6nF available with TÜV certification and with Y & H terminations only. Utilise StackiCap™ technology
PY2
Unmarked capacitors also available as released in accordance with approval specifications. Family codes SY2 applies.
SP
Unmarked capacitors also available as released in accordance with approval specifications. Family codes SYU applies.
© Knowles 2014
SafetyDatasheet Issue 9 Release Date 10/01/17
Tel: +44 1603 723300 | Email SyferSales@knowles.com | www.knowlescapacitors.com/syfer
Page 2 of 9
C0G/NP0
X7R
Ultra stable
Stable
IECQ-CECC
1B/CG
-
-
2C1
2R1
2X1
EIA
-
C0G/NP0
-
-
X7R
-
MIL
-
-
CG (BP)
BZ
-
BX
Rated temperature range
-55ºC to +125ºC
Maximum capacitance
change over temperature
range
-55ºC to +125ºC
± 20%
± 15%
± 15%
+20 -30%
-
+15 -25%
R
X
B
0 ± 30 ppm/ºC
Rated DC voltage applied
Knowles / Syfer dielectric
ordering code
C
Tangent of loss angle
(tan δ)
Cr > 50pF ≤ 0.0015
Cr ≤ 50pF = 0.0015 (15 + 0.7)
Cr
≤ 0.025
Insulation resistance (Ri)
OR
Time constant (Ri*Cr)
(whichever is the least)
100G Ω or 1000s
100G Ω or 1000s
Capacitance
tolerance
(ordering code)
Cr
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