Type RA
Angstor
®
Capacitor
Metallized Polyester (PET) Dielectric
W
NE
NGS
I
RAT
RA
PF
Code
224
474
105
225
225
335
405
505
106
Capacitor Type
•
•
•
•
•
•
•
•
•
•
Efficient size
Rugged construction
Does not fail short – Self healing
Low ESR/ESL
No entrapped moisture or air in self-encased
design
No dissimilar metals to chemically degrade or
attract moisture
High dv/dt
Wave solderable
Operating temperature range: –55°C to +125°C
Made in U.S.A.
Electrical
Schematic
Non-polarized
100 VDC / 80 VAC
Value
µF
.22
.47
1.0
2.2
2.2
3.3
4.0
5.0
10.0
L
MAX
.350 (8.9)
.350 (8.9)
.450 (11.4)
.350 (8.9)
.450 (11.4)
.450 (11.4)
.450 (11.4)
.450 (11.4)
.650 (16.5)
T
MAX
.155 (3.9)
.180 (4.6)
.175 (4.4)
.250 (6.3)
.205 (5.2)
.250 (6.3)
.200 (5.1)
.220 (5.6)
.260 (6.6)
H
MAX
.280 (7.1)
.305 (7.7)
.285 (7.2)
.350 (8.9)
.285 (7.2)
.350 (8.9)
.380 (9.7)
.480 (12.2)
.460 (11.7)
S
±.02 (.5)
.295 (7.5)
.295 (7.5)
.394 (10)
.295 (7.5)
.394 (10)
.394 (10)
.394 (10)
.394 (10)
.591 (15)
d
.025 (.6)
.025 (.6)
.025 (.6)
.025 (.6)
.025 (.6)
.025 (.6)
.032 (.8)
.032 (.8)
.032 (.8)
Max dv/dt
(V/µs)
75
65
35
25
25
25
20
20
13
Case
RA3
RA3
RA4
RA3
RA4
RA4
RA4
RA4
RA6
Part
Number
224K100RA3 _ _
474K100RA3 _ _
105K100RA4 _ _
225K100RA3 _ _
225K100RA4 _ _
335K100RA4 _ _
405K100RA4 _ _
505K100RA4 _ _
106K100RA6 _ _
250 VDC / 160 VAC
PF
Code
104
224
334
474
474
105
Value
µF
.1
.22
.33
.47
.47
1.0
L
MAX
.450 (11.4)
.450 (11.4)
.450 (11.4)
.450 (11.4)
.650 (16.5)
.650 (16.5)
T
MAX
.160 (4.1)
.190 (4.8)
.250 (6.3)
.210 (5.3)
.230 (5.8)
.240 (6.1)
H
MAX
.255 (6.5)
.305 (7.7)
.330 (8.4)
.305 (7.7)
.340 (8.6)
.340 (8.6)
S
±.02 (.5)
.394 (10)
.394 (10)
.394 (10)
.394 (10)
.591 (15)
.591 (15)
d
.025 (.6)
.025 (.6)
.025 (.6)
.025 (.6)
.032 (.8)
.032 (.8)
Max dv/dt
(V/µs)
100
75
75
55
50
35
Case
RA4
RA4
RA4
RA4
RA6
RA6
Part
Number
104K250RA4 _ _
224K250RA4 _ _
334K250RA4 _ _
474K250RA4
_ _
474K250RA6 _ _
105K250RA6 _ _
Dimensions in inches, metric (mm) in parenthesis.
Tolerance: K (±10%) standard, J (±5%) available
RoHS part number information:
No suffix indicates RoHS-5 compliant standard part number. RoHS-5 product does not contain five of the RoHS banned materials (Hg, CrVI,
Cd, PBB and PBDE) in levels exceeding the industry defined limits. Component lead wires are plated with Sn / Pb and match conventional
SnPb board assembly requirements.
For a RoHS-6 compliant part, add a –F? suffix, with the ? assigned at time of order/quote. RoHS-6 product does not contain any of the six
RoHS banned materials (Hg, CrVI, Cd, PBB, PBDE and Pb) in levels exceeding the industry defined limits. Component lead wires are plated
with Sn.
PAGE 4 •
ITW Paktron
• P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com
Type RA
Angstor
®
Capacitor
Metallized Polyester (PET) Dielectric
400 VDC / 250 VAC
PF
Code
224
474
Value
µF
.22
.47
L
MAX
.650 (16.5)
.650 (16.5)
T
MAX
.230 (5.8)
.290 (7.4)
H
MAX
.340 (8.6)
.440 (11.1)
S
±.02 (.5)
.591 (15)
.591 (15)
d
.032 (.8)
.032 (.8)
Max dv/dt
(V/µs)
65
120
Case
RA6
RA6
Part
Number
224K400RA6 _ _
474K400RA6 _ _
500 VDC / 250 VAC
PF
Code
504
Value
µF
.5
L
MAX
.650 (16.5)
T
MAX
.280 (7.1)
H
MAX
.540 (13.7)
S
±.02 (.5)
.591 (15)
d
.032 (.8)
Max dv/dt
(V/µs)
120
Case
RA6
Part
Number
504K500RA6 _ _
Dimensions in inches, metric (mm) in parenthesis.
Tolerance: K (±10%) standard, J (±5%) available
RoHS part number information:
No suffix indicates RoHS-5 compliant standard part number. RoHS-5 product does not contain five of the RoHS banned materials (Hg, CrVI, Cd, PBB
and PBDE) in levels exceeding the industry defined limits. Component lead wires are plated with Sn / Pb and match conventional SnPb board
assembly requirements.
For a RoHS-6 compliant part, add a –F? suffix, with the ? assigned at time of order/quote. RoHS-6 product does not contain any of the six RoHS
banned materials (Hg, CrVI, Cd, PBB, PBDE and Pb) in levels exceeding the industry defined limits. Component lead wires are plated with Sn.
Electrical
Capacitance Range:
0.1 µF to 10.0 µF @ 1KHz
Performance
Accelerated DC Voltage Life Test:
1,000 Hours, 85°C, 1.25 × Rated VDC
∆
C/C
≤
5%
DF
≤
1.0%, 1KHz, 25°C
IR
≥
1,000 Megohm x µF.
Need not exceed 1,000 Megohms
Physical
Vibration:
Mil Std 202 Method 204D
Tolerance:
Available in ± 5%, 10% (standard), 20%
Solder Resistance:
Construction:
Voltage Range:
100, 250, 400, 500 VDC
260°C, 5 Sec.
∆
C/C
≤
2%
Non-inductively constructed with
metallized polyester dielectric (polyethylene
terephthalate). Parallel plate–multilayer
polymer (MLP) design.
Electrode: Aluminum metallization.
Dissipation Factor:
Moisture Test:
85°C / 85% RH / 21 days
Applied Voltage: zero bias
∆
C/C
≤
7%
DF
≤
1.0%, 1KHz, 25°C
IR
≥
30% of initial limit
Long Term Stability:
After 2 years storage, standard
environment
∆
C/C
≤
2%
≤
1.0 % @ 25°C, 1KHz
≥
1,000 Megohms x µF.
Need not exceed 1,000 Megohms.
> 100 VDC
100 VDC
10 VDC
Insulation Resistance:
Case:
Polyester tape wrap.
Rated Voltage
≤
100 VDC
Test Voltage
Marking:
Parts are continuously marked ITW and pf
code. ITW, capacitance, tolerance and working
voltage are printed on container.
Dielectric Strength:
1.6 x RVDC, 2 seconds max.
(Bold P/Ns) 1.3 x RVDC, 2 seconds max.
Packaging:
Bulk Packaging Standard.
Self Inductance:
2 to 6nh typical
Temperature Range:
-55°C to 125°C @ rated DC voltage.
(Bold P/Ns) –55°C to 125°C,
derate voltage 1.25% / °C above 85°C
ITW Paktron
• P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com •
PAGE 5
Type RA
Angstor
®
Capacitor
Metallized Polyester (PET) Dielectric
Angstor
®
Capacitor Application Notes
ITW Paktron developed the highly advanced Interleaf®
Technology method of capacitor manufacturing to improve
device electrical properties and stability in actual use condi-
tions. As opposed to the conventional winding method,
Interleaf
®
Technology uses a high laminating pressure,
linear stacking technology. The resulting capacitor chip is a
construction hybrid resembling a multilayer ceramic capaci-
tor in cross section, while offering all the fail-safe advan-
tages of a stacked plastic film capacitor. We refer to the
resultant parts as MLP or multilayer polymer. The Angstor
®
Capacitor (or RA Style) is a self-encased, metallized film
capacitor which features small size, high dv/dt capability
and very low ESR at high frequency.
Intended for thru-hole and wired applications, the units
feature all aluminum electrodes and terminals that are pulse
welded to the lead wires. The units are back impregnated
with a microcrystalline polymer sealant, and require no
external coatings for moisture protection. The internal layers
are heavily laminated to eliminate air from the core material
which improves high frequency response compared to com-
petitive units. Operating temperature limit is extended to125
degrees C.
their extremely high parasitic resistance and inductance.
Under ripple voltage the Angstor is stable, while ceramic
capacitors increase in loss factor, creating incremental I
2
R
losses.
LINE AND DATA LINE NOISE SUPPRESSION
A 250 volt Angstor will not lose value due to the bias volt-
age and can be used on higher voltage lines as a differential
noise bypass for RFI control. High input dv/dt up to 100 volts
per micro second can be handled. In modems, the Angstor
is a space efficient alternative to other input current control
devices. Since the capacitor body is “plastic” there exists no
piezoelectric emf due to input di/dt.
EMI/RFI SUPPRESSION
Noise suppression is required on a variety of motors and
field effect devices close to the offending source to minimize
RFI on the voltage bus. Noise or transients emanating from
switched state motors or inductors require a low ESR
capacitor as part of the filtering arrangement. The Angstor is
an excellent choice for these 12, 36 and 48 volt bus-rails
because of its small size compared to other film capacitors
and better ESR and reliability than ceramic capacitors. As
the automotive bus voltage rises from 12 to 36/42 volts, this
technology will replace many ceramic and tantalum capaci-
tors because of its enhanced voltage coefficient (stability).
GRACEFUL AGING
There exists no chemical interactions within the MLP
Capacitor to effect long term life. The parts are suitable
for 10 to 20 year life applications due to their stability and
inherently low loss. The polymer dielectric becomes more
crystalline over long periods of time, which can gradually
lower the capacitance value. The thin-film metallized elec-
trodes are capable of “self healing” under high voltage
events. This feature avoids the shorting, cracking and rapid
heat generation problem often found in ceramic capacitors.
The following are a few examples of applications
wherein the Angstor’s unique features have
proven desirable:
HIGH FREQUENCY SWITCHING POWER INPUTS
As the modern power converter broke the 100 KHz
switching frequency barrier, the ripple voltage and RFI con-
trol components changed drastically. On the input side of 48
volt converters, a low ESR and ESL capacitor is needed in
the pi filter network to control EMI generated by the switch-
ing MOSFET. Metallized film capacitors should be used
because of the voltage bias and due to the unit’s
ability to “clear” during a high voltage event, rather than
short out like a common MLC capacitor. Electrolytic (alumi-
num and tantalum) capacitors are not useful because of
PAGE 6 •
ITW Paktron
• P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com
Type RA
Angstor
®
Capacitor
Metallized Polyester (PET) Dielectric
Typical Performance Curves
Comparison of Multilayer Polymer (RA) vs. Multilayer Ceramic (X7R)
Capacitance Change (%)
10%
Capacitance Change vs. Temperature
5%
0%
-5%
-10%
6%
5%
Dissipation Factor vs. Temperature
X7R-MLC
DF (%)
RA
4%
3%
2%
X7R-MLC
-55 -40
-20
0
25
45
65
85
105 125
RA
1%
0%
-55
-40
-20
0
25
45
65
85
105 125
Temperature (°C)
Capacitance Change (%)
3.0
2.0
1.0
0
-20
0
1
2
3
0
1
Temperature (° C)
+20
Capacitance Change vs. AC Volts
X7R-MLC
RA
Dissipation Factor vs. AC Volts (1 KHz)
X7R-MLC
0
DF(%)
RA
2
3
4
5
AC Voltage (Vrms)
Capacitance Change (%)
2%
Capacitance Change vs. Frequency
4%
3%
AC Voltage (Vrms)
Dissipation Factor vs. Frequency
X7R-MLC
RA
-2%
X7R-MLC
DF (%)
0%
2%
RA
1%
0%
-4%
100 Hz
1 KHz
10 KHz
100 KHz
100 Hz
1 KHz
10 KHz
100 KHz
Frequency
Capacitance Change (%)
RA
Capacitance Change vs. DC Bias
Frequency
Capacitance Change (%)
10
Capacitance vs. Time (Aging)
0
0
-10
0
-20
-30
-40
-50
0
20
RA
X7R-MLC
-10
100
1000
X7R-MLC
10000
100000
40
60
80
100
DC Bias (volts)
Time (Hrs.)
ITW Paktron
• P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com •
PAGE 7
Type RA
Angstor
®
Capacitor
Metallized Polyester (PET) Dielectric
Typical Performance Curves
Selected High Value “Power” Capacitors
1.0
mF
100 VDC RA4
10,000.000
1000.000
100.000
10.000
1.000
0.100
0.010
0.001
100
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.010
10,000,000
0.100
.47
mF
250 VDC RA4
10.000
10,000.000
1000.000
100.000
10.000
1.000
1.000
0.100
0.010
0.001
100
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.010
10,000,000
10.000
ESR (Ohms)
ESR (Ohms)
ESR (Ohms)
Impedance & ESR vs. Frequency
Impedance & ESR vs. Frequency
100.000
Impedance Z (Ohms)
1.000
ESR (Ohms)
Impedance Z (Ohms)
0.100
2.2
mF
100 VDC RA4
1000.000
.47
mF
400 VDC RA6
10.000
10,000.000
1000.000
100.000
10.000
1.000
0.100
0.010
0.010
10,000,000
0.001
100
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.010
10,000,000
0.100
Impedance & ESR vs. Frequency
Impedance & ESR vs. Frequency
10.000
100.000
Impedance Z (Ohms)
10.000
1.000
ESR (Ohms)
Impedance Z (Ohms)
1.000
1.000
0.100
0.100
0.010
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.001
100
3.3
mF
100 VDC RA4
1000.000
1.0
mF
250 VDC RA6
10.000
10,000.000
1000.000
100.000
10.000
1.000
0.100
0.010
0.010
10,000,000
0.001
100
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.010
10,000,000
0.100
Impedance & ESR vs. Frequency
Impedance & ESR vs. Frequency
10.000
100.000
Impedance Z (Ohms)
10.000
1.000
ESR (Ohms)
Impedance Z (Ohms)
1.000
1.000
0.100
0.100
0.010
Impedance
ESR
1,000
10,000
100,000
Frequency
1,000,000
0.001
100
PAGE 8 •
ITW Paktron
• P.O. Box 4539, 1205 McConville Road, Lynchburg, Virginia 24502 • Tel 434-239-6941 • Fax 434-239-4730 • www.paktron.com
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