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
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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 at 25°C)
2.5%
See Insulation Resistance Limit Table
(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 kHz ±50 Hz and 1.0 ±0.2 V
rms
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."
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