KEMET’s 300 Series High Voltage Goldmax conformally coated
radial leaded ceramic capacitors in X7R dielectric feature a
125°C maximum operating temperature. The Electronics Indus-
tries Alliance (EIA) characterizes X7R dielectric as a Class II
"temperature stable" material. Components of this classification
are fixed, ceramic dielectric capacitors suited for bypass and
decoupling applications or for frequency discriminating circuits
where Q and stability of capacitance characteristics are not
critical. X7R exhibits a predictable change in capacitance with
respect to time and voltage and boasts a minimal change in ca-
pacitance with reference to ambient temperature. Capacitance
change is limited to ±15% from -55°C to +125°C.
These devices offer low leakage current, exhibit low ESR at high
frequencies and find conventional use as snubbers or filters in
applications such as switching power supplies and in lighting
ballasts. Their exceptional performance at high frequencies has
made them a preferred choice of design engineers worldwide. In
addition to their use in power supplies, these capacitors are widely
used in industries related to telecommunications, medical, military,
aerospace, semiconductor and test/diagnostic equipment
Ordering Information
C
Ceramic
320
Style/Size
315
316
317
318
320
321
322
323
324
325
326
327
328
330
331
333
335
336
340
346
350
356
C
Specification/
Series
C=
Standard
473
Capacitance
Code (pF)
First two digits
represent significant
figures. Third digit
specifies number of
zeros.
K
C
R
5
T
Lead
Finish
2
A
Failure
Rate
7301
Packaging
(C-Spec)
3
Blank = Bulk
7301 = 12" Reel
7303 = 12" Reel
7293 = Ammo
Pack
Capacitance Rated Voltage
Dielectric Design
Tolerance
1
(VDC)
J = ±5%
K = ±10%
M = ±20%
C = 500
B = 630
D = 1,000
F = 1,500
G = 2,000
Z = 2,500
H = 3,000
R = X7R
5=
T = 100% A = N/A
Multilayer Matte Sn
H = SnPb
(60/40)
Additional capacitance tolerance offerings may be available. Contact KEMET for details.
Lead materials:
Standard: 100% matte tin (Sn) with nickel (Ni) underplate and steel core ( “T” designation).
Alternative 1: 60% tin (Sn)/40% lead (Pb) finish with copper-clad steel core ( “H” designation).
Alternative 2: 60% tin (Sn)/40% lead (Pb) finish with 100% copper core (available with “H” designation code with C-Spec). Contact KEMET for C-Spec details.
3
Tape and Reel:
C-Spec 7303: 18.0 mm minimum lead length. Not available for Size/Style C321 and C331.
C-Spec 7301: 16.0 ± 0.5 mm lead length. Not available for Size/Style C321 and C331.
Ammo Pack:
C-Spec 7293: Ammo Pack option is not available for Size/Style C321, C331, C350 and C356.
For more information see Tape & Reel Packaging Information
High Voltage Goldmax, 300 Series, Conformally Coated, X7R Dielectric, 500 – 3,000 VDC (Commercial Grade)
Environmental Compliance
Lead (Pb)-Free, REACH and RoHS compliant without exemptions when ordered with a 100% tin (Sn) wire lead finish.
Product ordered with tin/ lead (Sn60/Pb40) wire lead finish do not meet RoHS criteria.
Termination
Finish
(Wire Lead)
100% Matte Sn
Sn60/Pb40
Series
300 (C3XX)
1
RoHS
Compliant
Yes
No
RoHS
Exemption
Code
n/a
n/a
REACH
Compliant
1
Yes
Yes
Halogen
Free
Yes
Yes
REACH compliance indicates product does
not contain Substance/s of Very High Concern (SVHC)
Electrical Parameters/Characteristics
Item
Operating Temperature Range
Capacitance Change with Reference to +25°C and 0 VDC Applied (TCC)
Aging Rate (Maximum % Cap Loss/Decade Hour)
Dielectric Withstanding Voltage
Dissipation Factor (DF) Maximum Limit @ 25ºC
Insulation Resistance (IR) Limit @ 25°C
-55°C to +125°C
±15%
3.0%
150% of rated voltage for voltage rating of < 1,000 V
120% of rated voltage for voltage rating of ≥ 1,000 V
(5 ± 1 seconds and charge/discharge not exceeding 50 mA)
2.5%
1,000 megohm microfarads or 100 GΩ
(500 VDC applied for 120 ± 5 seconds @ 25°C)
Parameters/Characteristics
Regarding aging rate: Capacitance measurements (including tolerance) are indexed to a referee time of 1,000 hours.
To obtain IR limit, divide MΩ-µF value by the capacitance and compare to GΩ limit. Select the lower of the two limits.
Capacitance and dissipation factor (DF) measured under the following conditions:
1 MHz ±100 kHz and 1.0 V
rms
±0.2 V if capacitance ≤ 1,000 pF
1 kHz ±50 Hz and 1.0 V
rms
±0.2 V if capacitance > 1,000 pF
Note: When measuring capacitance it is important to ensure the set voltage level is held constant. The HP4284 and Agilent E4980 have a feature known as
Automatic Level Control (ALC). The ALC feature should be switched to "ON."
Post Environmental Limits
High Temperature Life, Biased Humidity and Storage Life
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