944U470K142ABM [CDE]
Polypropylene Film Capacitors for DC Filtering; 聚丙烯薄膜电容器的直流滤波
| 型号： | 944U470K142ABM |
| 厂家： | 
CORNELL DUBILIER ELECTRONICS |
| 描述： | Polypropylene Film Capacitors for DC Filtering |
| 文件： | 总4页 (文件大小：446K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Type 944U Polypropylene Film Capacitors for DC Filtering
Metallized Polypropylene Dielectric
Type 944U is specifically designed for use in medium power DC fil-
tering applications. The low inductance internal construction utilizes
low loss metallized polypropylene for high ripple current capability.
Male or female terminal options offer design flexibility in a rugged
UL 94VO rated flame retardant plastic case and resin fill.
Applications
Inverters: DC Link
DC Output Filter
Specifications
Capacitance Range:
Voltage Range:
33 µF to 220 µF
800 Vdc to 1400 Vdc
Capacitance Tolerance:
Operating Temperature Range:
Dielectric Withstand:
±10% standard
–40 ºC to +85ºC
150% Rated Vdc 10s - Between Terminals
4000 Vac 60s - Terminals to Case
Complies with the EU Directive
2002/95/EC requirement restrict-
ing the use of Lead (Pb), Mercury
(Hg), Cadmium (Cd), Hexava-
lent chromium (Cr(VI)), PolyBro-
minated Biphenyls (PBB) and
PolyBrominated Diphenyl Ethers
(PBDE).
Ratings
Thermal Resistance
Rated
H
H
Max ESR
Typical Max Irms
Catalog
Part Number
Cap
(µF)
Voltage Height
(Vdc) (mm)
Height
(in)
10kHz
(mΩ)
ESL
(nH)
55ºC
(A)
Θcc
(ºC/W)
Θca
(ºC/W)
944U101K801AA*
944U161K801AB*
944U221K801AC*
944U660K102AA*
944U101K102AB*
944U141K102AC*
944U470K122AA*
944U700K122AB*
944U101K122AC*
944U330K142AA*
944U520K142AB*
944U700K142AC*
100
160
220
66
800
800
40
51
64
40
51
64
40
51
64
40
51
64
1.67
2.01
2.52
1.67
2.01
2.57
1.67
2.01
2.57
1.67
2.01
2.57
0.5
0.8
1.0
0.6
0.8
1.0
0.7
1.0
1.3
0.8
1.1
1.4
20
30
40
20
30
40
20
30
40
20
30
40
74
73
72
70
68
65
67
65
64
64
60
59
2.8
3.0
3.1
2.8
3.0
3.1
2.8
3.0
3.1
2.8
3.0
3.1
5.2
4.5
4.0
5.2
4.5
4.0
5.2
4.5
4.0
5.2
4.5
4.0
800
1000
1000
1000
1200
1200
1200
1400
1400
1400
100
140
47
70
100
33
52
70
* M = M8 Stud I = M5 Insert
Additional values available upon request.
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com
Type 944U Polypropylene Film Capacitors for DC Filtering
Outline Drawing
Dimensions: Millimeters (Inches)
H dimension in Ratings Table
I Suffix
M Suffix
Tolerance ±0.5mm (±0.019”), otherwise specified
Part Numbering System
944U
101
K
801
A
A
M
Type
Capacitance
101 = 100 µF
700 = 70 µF
470 = 47 µF
Tolerance
Voltage
Diameter D (mm) Height H (mm)
Terminal
944U
K = ±10%
801 = 800 Vdc
102 = 1000 Vdc
122 = 1200 Vdc
A = 84.5
A = 40
B = 51
C = 64
M = M8 Thd Stud
I = M5 Thd Insert
142 = 1400 Vdc
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com
Type 944U Polypropylene Film Capacitors for DC Filtering
Expected Lifetime Predictions
To use the Expected Lifetime curves calculate Va ⁄Vr and core
temperature T. Start by estimating:
Applied dc voltage Va
1. Start with the 10 kHz ESR from the Ratings table. If frequency
is less than 10 kHz, add 31.83 ⁄(fC).
Ripple Current I
Ripple Frequency f
Ambient Temperature Ta
Airflow speed v
2. Compute total thermal resistance θ as the sum of core-to-case
thermal resistance θcc and case-to-ambient thermal resistance
θca. Both are in the Ratings table but θca is for still air and θcc
is for 10 kHz or less. For frequency > 10 kHz multiply θcc by
[1+(f –10)/100], e.g., for 75 kHz multiply θcc by 1.65. For moving
air use the capacitor surface area A and airflow speed v to calculate
θca = 1 ⁄[A(5+17.5(v+0.1)0.66)].
Units:
A=m²
C=μF
ESR=mΩ
f=kHz
I=A
T, Ta & Tc=°C
θ, θca & θcc =°C/W
v=m/s
Va &Vr=Vdc
3. Compute Va ⁄Vr and the core temperature T.
T = Ta + I²(ESR)θ
NOTE: The temperature rise in the 944U is I²(ESR) times the
thermal resistance θ. The ESR is mainly the metal resistance;
the metal resistance is the 10 kHz ESR. For operation below
10kHz add the dielectric resistance. It is the dielectric
dissipation factor—no more than 0.0002—times the capacitive
reactance, i.e., 0.0002 ⁄(2πfC).
4. Look up estimated lifetime from the Expected Lifetime curves.
5. If you want a longer expected lifetime, choose a capacitor with
higher voltage rating or consider using multiple capacitors in
parallel to share the ripple current.
That’s equal to 31.83 ⁄(fC).
Permissible Voltage Surge Duty for 100,000 Hour
Life Expectancy at 50 ºC Core Temperature
Factor
1.67x
1.50x
1.30x
1.10x
1.00x
Duration
t≤ 100 ms
t≤ 5 minutes
t≤ 2.5 hours
t≤ 9.6 hours
balance (11.9 h)
Frequency
1x/day
1x/day
1x/day
1x/day
1x/day
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com
Type 944U Polypropylene Film Capacitors for DC Filtering
Typical Performance Curves
160µF 800Vdc ESR vs Frequency and Temperature
4
3.5
3
2.5
85ºC
65ºC
2
45ºC
25ºC
0ºC
1.5
-20ºC
-40ºC
1
100
1000
10000
100000
Frequency (Hz)
160µF 800Vdc Rated Ripple Current, Still Air, 5kh Life
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
45ºC
55ºC
65ºC
75ºC
85ºC
10
100
1000
10000
100000
Frequency (Hz)
CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com
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