Polypropylene Pulse/High Frequency Capacitors
NOT FOR NEW DESIGN
Applications
Typical applications include timing, oscillator circuits, high
frequency coupling and decoupling applications.
Not suitable for across-the-line application
(see Suppressor Capacitors).
ATTENTION -- This series was replaced by the R75 series.
Please click on the link to the R75 series datasheet
HERE.
R79, Single Metallized Polypropylene Film, Radial,
5 mm Lead Spacing, Multipurpose Applications
Overview
The R79 Series is constructed of metallized polypropylene
film with radial leads of tinned wire. The radial leads are
electrically welded to the metal layer on the ends of the
capacitor winding. The capacitor is encapsulated with a
self-extinguishing thermosetting resin in a box material
meeting the UL 94 V–0 requirements.
Benefits
•
•
•
•
•
•
•
•
•
Voltage range: 160 – 630 VDC
Capacitance range: 0.001 – 0.22 µF
Lead Spacing: 5 mm
Capacitance tolerance: ±5%, ±10%, ±20%
Climatic category: 55/105/56 IEC 60068–1
Operating temperature range of −55˚C to +105˚C
RoHS compliance and lead-free terminations
Tape & Reel packaging in accordance with IEC 60286–2
Self-healing
Part Number System
R79
Series
Metallized
Polypropylene
G
Rated Voltage (VDC)
G = 160
I = 250
M = 400
P = 630
C
Lead Spacing
(mm)
C=5
2390
Capacitance
Code (pF)
The last three
digits represent
significant figures.
The first digit
specifies the total
number of zeros
to be added.
AA
Packaging
See Ordering
Options Table
40
Internal Use
40
45
K
Capacitance
Tolerance
H = 2.5%
J = ±5%
K = ±10%
Built Into Tomorrow
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
F3107_R79 • 3/23/2022
1
Film Capacitors – Polypropylene Pulse/High Frequency Capacitors
NOT FOR NEW DESIGN
Lead Length
(mm)
4 +1.5/−0
H
0
= 18.5 ±0.5
H
0
= 18.5 ±0.5
10±1
4.0 +0.5/−0
3.2 +0.3/−0.2
17 +1/−2
R79, Single Metallized Polypropylene Film, Radial, 5 mm Lead Spacing, Multipurpose Applications
Ordering Options Table
Lead Spacing
Nominal
(mm)
Type of Leads and Packaging
Standard Lead and Packaging Options
Bulk (Bag) – Short Leads
Ammo Pack
AA
DQ
CK
JC
JE
JH
Z3
Lead and
Packaging
Code
5
Other Lead and Packaging Options
Tape & Reel (Standard Reel Ø 355 mm)
Bulk (Bag) – Short Leads
Bulk (Bag) – Short Leads
Bulk (Bag) – Short Leads
Bulk (Bag) – Long Leads
Dimensions – Millimeters
Loose
Taped
L
T
H
S
LL
F
H
0
S
5.0
5.0
5.0
5.0
5.0
±0.4
±0.4
±0.4
±0.4
±0.4
3.5
4.5
5.0
6.0
7.2
T
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
7.5
9.5
10.0
11.0
13.0
H
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
+0.1/−0.5
7.2
7.2
7.2
7.2
7.2
L
+0.2/−0.5
+0.3/−0.5
+0.3/−0.5
+0.3/−0.5
+0.3/−0.5
0.5
0.5
0.5
0.5
0.5
F
±0.05
±0.05
±0.05
±0.05
±0.05
Nominal Tolerance Nominal Tolerance Nominal Tolerance Nominal Tolerance Nominal Tolerance
Note: See Ordering Options Table for lead length (LL/Ho) options.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
F3107_R79 • 3/23/2022
2
Film Capacitors – Polypropylene Pulse/High Frequency Capacitors
NOT FOR NEW DESIGN
Polypropylene film
Metal layer deposited by evaporation under vacuum
Non-inductive type
Tinned wire
Plastic case, thermosetting resin filled. Box material is solvent resistant and flame retardant according to UL94.
IEC 60384–16
160
70
0.039 – 0.22
250
160
0.012 – 0.15
400
200
0.0039 – 0.047
630
220
0.001 – 0.018
R79, Single Metallized Polypropylene Film, Radial, 5 mm Lead Spacing, Multipurpose Applications
Performance Characteristics
Dielectric
Plates
Winding
Leads
Protection
Related Documents
Rated Voltage V
R
(VDC)
Rated Voltage V
R
(VAC)
Capacitance Range (µF)
Capacitance Values
Capacitance Tolerance
Operating Temperature
Range
Rated Temperature T
R
Voltage Derating
Climatic Category
E12 series (IEC 60063) measured at 1 kHz and +20 ±1°C
±2.5%, ±5%, ±10%
−55°C to +105°C
+85°C
Above +85°C DC and AC voltage derating is 1.25%/°C
55/105/56 IEC 60068–1
Storage time: ≤ 24 months from the date marked on the label package
Average relative humidity per year ≤ 70%
Storage Conditions
RH ≤ 85% for 30 days randomly distributed throughout the year
Dew is absent
Temperature: −40 to 80°C (see "Maximum Humidity in Storage Conditions" graph below)
Test Voltage
Capacitance Drift
Maximum Pulse Steepness
Temperature Coefficient
Self Inductance
1.6 x V
R
VDC for 2 seconds (between terminations) at +25°C ±5°C
Maximum 0.5% after a 2 year storage period at a temperature of +10°C to +40°C and a relative humidity of
40% to 60%
dV/dt according to Table 1. For working voltages lower than rated voltage (V < VR), the specified dV/dt
can be multiplied by the factor VR/V.
−(200 ±100) ppm/°C at 1 kHz
Approximately 6 nH. Maximum 1 nH per 1 mm lead and capacitor length.
Maximum Values at 25°C ±5°C
Frequency
C ≤ 0.1 μF
0.06%
0.10%
0.30%
C > 0.1 µF
0.06%
0.10%
-
Dissipation Factor tanδ
1 kHz
10 kHz
100 kHz
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
F3107_R79 • 3/23/2022
3
Film Capacitors – Polypropylene Pulse/High Frequency Capacitors
NOT FOR NEW DESIGN
Measured at +25°C ±5°C, 100 VDC 60 seconds
Minimum Values Between Terminals
All Capacitance Values
≥ 100,000 MΩ
( ≥ 500,000 MΩ )*
R79, Single Metallized Polypropylene Film, Radial, 5 mm Lead Spacing, Multipurpose Applications
Performance Characteristics cont.
Insulation Resistance
* Typical value
Temperature (°C)
Maximum I
rms
vs. T
h
200%
180%
160%
Maximum I
rms
140%
120%
100%
80%
60%
40%
20%
0%
40
45
50
55
60
65
70
75
80
85
90
95 100 105 110 115
T
h
(°C)
T
h
is the maximum ambient temperature surrounding the capacitor or hottest contact point (e.g. tracks), whichever is higher, in the worst operation
conditions in °C.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
100
90
80
70
60
50
40
30
20
10
0
−40
Maximum Humidity in Storage Condition
25
Maximum Overtemperature
∆T
lim
vs T
h
20
Relative Humidity (%)
30 Days
Annual Average
∆T
lim
(°C)
40
60
80
15
10
5
−20
0
20
0
Temperature T
h
(°C)
F3107_R79 • 3/23/2022
4
Film Capacitors – Polypropylene Pulse/High Frequency Capacitors
NOT FOR NEW DESIGN
V
rm s
[V]
1000
R79, Single Metallized Polypropylene Film, Radial, 5 mm Lead Spacing, Multipurpose Applications
Maximum Voltage (V
rms
) vs. Frequency (Sinusoidal Waveform/Th ≤ 85°C)
V
rm s
[V]
1000
160 Vdc / 70 Vac
250 Vdc / 160 Vac
100
100
10
0. 068
µF
0. 1
µF
0. 22
µF
10
0. 022
µF
0. 047
µF
0. 1
µF
1
0.1
1
10
100
1
f [kHz]
1000
0.1
1
10
100
f[kHz]
1000
V
rm s
[V]
1000
400 Vdc / 200 Vac
V
rm s
[V]
1000
630 Vdc / 220 Vac
100
100
10
10
4700 pF
0. 015
µF
0. 047
µF
2200 pF
4700 pF
0. 01
µF
1
0.1
1
10
100
1
f[kHz]
1000
0.1
1
10
100
f[kHz]
1000
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
F3107_R79 • 3/23/2022
5
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