```Application Guide Radial-Leaded Mica Capacitors
Specifications
Capacitance is within tolerance
when measured at these frequencies:
1–1000 pF @ 1MHz
> 1000 pF @ 1 kHz
Temperature Coefficient and Pulse Handling: Standard dipped
Capacitance Drift: Measure the capacitors will withstand an unlimited
capacitors’ capacitance at 25 ºC,
–55 ºC, 25 ºC, 125 ºC (or 150 ºC)
and at 25 ºC after stabilizing at each
Dissipation Factor limits are temperature. The capacitance will meet
below. Dissipation factor is equal to the limits of the Characteristic table
DF=2πfRC, where f is the test shown in Ordering Information.
frequency, R is the equivalent series
resistance, and C is the capacitance. Solderability: After an eighthour
For other capacitance values, see steam aging, coat leads with rosin flux
Figure 1.
(R) and immerse in molten 245 ºC
Capacitance Dissipation Factor coverage will be no less than 95% when
75–1,000 pF
0.00075 max at 1 MHz
examined at 10X magnification.
1,100–3,300 pF
3,600–9,100 pF
10,000 pF
0.0014 max at 1 kHz
0.0013 max at 1 kHz
0.0012 max at 1 kHz
number of pulses with a dV/dt of
100,000 V/µs tested per IEC 384-1.
Smaller capacitance ratings can
withstand even faster dV/dt—ratings
have been tested one million discharges
at rated voltage into a 4.7 Ω resistor
with no change in capacitance. For a
100 pF, 500 Vdc unit, that’s a peak
dV/ dt in excess of 1,000,000 V/µs.
The dV/dt is expressed by this
relationship:
dV/dt = V
RdC
V = rated voltage, Vdc
Rd = minimum discharge resistor, Ω
C = rated capacitance, µF
This is the initial rate of discharge into
Rd.
Surge Voltage: Standard dipped
capacitors will withstand 500 Vdc max
Quality Factor (Q) is the reciprocal peak transients above rated voltage.
For example, in flyback regulators with
of dissipation factor.
less than 500 Vdc bias, you may use
500 Vdc-rated capacitors provided that Marking is in accordance with EIA
Insulation Resistance for the switching transient peaks are less RS153B and includes “CD” as our
capacitances up to 10,000 pF is greater than 1,000 V.
manufacturer’s symbol, nominal
than 100 GW at 25 ºC and greater than
capacitance in pF, capacitance
10 GW at 125 ºC. For other Voltage Coefficient: The change tolerance, and dc working voltage
capacitance values and temperatures, in capacitance from 0 volts to rated followed by V, if other than 500 Vdc.
see Figure 2.
voltage is less than 0.1%.
Miniature dipped units (CD6 and CD7)
are marked with capacitance in pF and
Withstanding Voltage is 2 times
tolerance letter designation.
the rated voltage, and can be applied
up to 5 seconds without damage.
MIL-C-5 units (Type CM) are in
accordance with MIL-C-5.
0.1000
100,000
+25 ºC
+85 ºC
IR (M )
DF (%)
0.0100
0.0010
Maximum DF a 1 kHz
for capacitance values
greater than 1,000 pF
Maxiumm DF at 1 MHz
for capacitance values
of 1,000 pF or less
10,000
+125 ºC
+150 ºC
1,000
62,000
100
0.0001
1
10
100
1,000
Capacitance (pF)
Figure 1. DF vs. Capacitance
10,000
100,000
1
10
100
1,000
10,000
100,000
Capacitance (pF)
Figure 2. IR vs. Capacitance
Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8564 • Fax: (508)996-3830 • www.cde.com
6.020
Specifications
Moisture Resistance:
24-Hour Moisture Resistance Cycle
Capacitors will meet the requirements
of MIL-STD-202, Method 106F as
outlined here and diagrammed on the
right. Refer to MIL-STD-202 for
details. For miniature Types CD6 and
CD7, use one 24-hour cycle rather
than 10.
1. Dry capacitors for 24 hours in a 50
±2 ºC oven and then allow to stabilize
at room temperature.
2. Subject the capacitors to 10
24- hour continuous cycles with relative
humidity and temperature as shown.
65 ±2 ºC
90-98 RH
8
1-4
3
25 ±2 ºC
90-98 RH
2½
3
2½
2½
3
2½
hours
–10 ±2 ºC
Uncontrolled
Humidity
3. 24 hours after completion of the last
cycle, the capacitors will show no visual
damage and will meet the after-test
limits below.
Life Test: Subject the capacitors to maximum operating temperature (+125 ºC or +150 ºC) with 1.5 times rated
voltage applied for 2,000 hours. There will be no visual damage and the capacitors will meeet the after-test limits below
After-Test Limits
Test
Moisture Resistance
Lift Test
OL = Initial Limit
Withsatnd
Voltage
IL
IL
Insulation
Resistance
30 GΩ
IL
Capacitance Change
(wichever is greater)
NV ±1% or ±1 pF
NV ±1% or ±1 pF
DF
Q
150% IL
150% IL
2/3xIL
2/3xIL
NV = Nominal Value
Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8564 • Fax: (508)996-3830 • www.cde.com
Specifications — Dipped Mica Capacitors for Auto Insertion
T max.
L max.
For high-volume auto insertion applications, the best value choice
is Type CDA15. Reel packing is also available for Types CD4, CD5,
CD6, CD7, CD10, CD15, CD17, CD19, CM04, and CM05.
H max.
.078
.250 ±.051
.354 + .030
.709 + .039 – .020
– .020
.202 ±.028
.035 max.
h ± .020
S ± .031
Reel Packing with 0.200” lead spacing is available for Types CD5,
CD6, CD7, and CD10. To order 0.200” lead spacing, change the
Catalog Number by inserting the letter “A” in the CDE Type.
Example: Type CD5 capacitors, reel packed with 0.200" lead spacing,
is designated as Type CDA5.
.157 ± .012
.500 ± .012
A
B
See the table below for available reel-packed types, lead
per ammo packs.
Packaging will be in accordance with EIA-468. Dimension “h” will
be 16mm for formed leads or 18mm for straight leads. 20mm is
available on special request. Specify reel or ammo on your purchase
order.
C
Type
Number
S pacing
Configuration
Material
C D4
0.100
A
CCS
C D5
0.120
A
C DA5
0.200
B
C D6
C DA6
C D7
0.172
0.200
0.172
C DA7
D10
C D10/C M 04
C DA10
0.200
CCS
A
CCS
A
A (up to 820 pF)
C (All v alues)
CCS
0.141
A
0.200
C
0.234
A
CCS
C D16
C DV16
0.234
A
CCS
C DA15
C DA17
0.200
A, C
C opper
C D19
0.344
A
CCS
C D15/C M 05
C D17
For tape and reel or ammo-packed packaging, specify on the order.
CCS
Range of
Pieces per
Reel
Range of
Pieces per
Ammo Pack
1– 560 pF
561– 780 pF
781–1500 pF
1–158 pF
159–256 pF
257–400 pF
1000–2500
1000–2000
1000–1500
1000–2500
1000–2000
1000–1500
1000–2000
1000–1500
1000
1000–2000
1000–1500
1000
1– 120 pF
1000–2500
1000–2000
1– 560 pF
561– 780 pF
781–1500 pF
1– 265 pF
266– 470 pF
471–1200 pF
1– 330 pF
331– 470 pF
471–1500 pF
1– 330 pF
331– 470 pF
471–1500 pF
1501–2000 pF
> 2000 pF
1– 330 pF
331– 470 pF
471–1500 pF
10-1000 pF
1001-1500 pF
1501–3000 pF
3001-5000 pF
1000–2500
1000–2000
1000–1500
1000–2500
1000–2000
1000–1500
1000–2500
1000–2000
1000–1500
1000–2500
1000–2000
1000–1500
800
500
1000–2500
1000–2000
1000–1500
1000
800
600
400
1000–2000
1000–1500
1000
1000–2000
1000–1500
1000
1000–2000
1000–1500
1000
1000–2000
1000–1500
1000
600
600
1000–2000
1000–1500
1000
800
800
600
400
Capacitance
Range