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B32778G4756J000

P1-P3P4-P4
Dimensions
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type 944U Polypropylene, DC Link Capacitors
High Current, Low Pro le for Inverter Applications
Type 944U is speci cally designed for use in high power DC
ltering applications. The low inductance internal construction
utilizes low loss metallized polypropylene for high ripple current
capability. Male or female terminal options off er design  exibility
in a rugged UL 94VO rated  ame retardant plastic case and resin
ll. High current ratings and robust mounting  anges make the
944U suited for inverter applications in electric vehicle power
inverters, wind power inverters and motor drives.
Highlights
- Low Inductance
- Low Pro le
- Low ESR
- High Ripple Current
- High Voltage Ratings
Speci cations
Capacitance Range 33 to 220 µF
Capacitance Tolerance ±10% standard
Rated Voltage 800 to 1400 Vdc
Operating Temperature Range -40 ºC to 85 ºC
Maximum rms Current 74A @ 55 ºC
Maximum rms Voltage 230 Vac
Test Voltage between Terminal @ 25ºC 150% rated DC voltage for 10 s
Test Voltage between Terminals & Case @ 25ºC 4 kVac @ 50/60 Hz for 60 s
Life Test 5000 h @ 85 ºC, rated voltage
RoHS Compliant
H ±0.5 mm
5 mm
6 ±0.5 mm
20 ±0.5 mm
84.5 mm
45 ±1 mm
101 mm
71.4 mm
15 mm
M8 x 1.25
8.5 Nm Max Torque
M5 x 4.0 mm
2.5 Nm Max Torque
15 mm
5.5 mm
3 Nm Mounting Torque
90°
Threaded
Insert
Threaded
Stud
Construction Details
Case Material Plastic UL94V-0
Resin Material Dry Resin UL94V-0
Terminal Material Tin Plated Brass
UL Recognized E128034
construction only - unprotected
Film
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Ratings
Typical Performance Curves
944U 101 K 801 A A M
Type Capacitance Tolerance Voltage Diameter D (mm) Height H (mm) Terminal
944U 101 = 100 µF K = ±10% 801 = 800 Vdc A = 84.5 A = 40 M = M8 Thd Stud
700 = 70 µF 102 = 1000 Vdc B = 51 I = M5 Thd Insert
470 = 47 µF 122 = 1200 Vdc C = 64
142 = 1400 Vdc
Catalog
Part Number
Cap
(µF)
Rated
Voltage
(Vdc)
H
Height
mm
Typical ESR
10kHz
(mΩ)
Typical
ESL
(nH)
Max Irms
55ºC
(A)
Thermal Resistance
Θcc
(ºC/W)
Θca
(ºC/W)
944U101K801AA* 100 800 40 0.5 20 74 2.8 5.2
944U161K801AB* 160 800 51 0.8 30 73 3.0 4.5
944U221K801AC* 220 800 64 1.0 40 72 3.1 4.0
944U660K102AA* 66 1000 40 0.6 20 70 2.8 5.2
944U101K102AB* 100 1000 51 0.8 30 68 3.0 4.5
944U141K102AC* 140 1000 64 1.0 40 65 3.1 4.0
944U470K122AA* 47 1200 40 0.7 20 67 2.8 5.2
944U700K122AB* 70 1200 51 1.0 30 65 3.0 4.5
944U101K122AC* 100 1200 64 1.3 40 64 3.1 4.0
944U330K142AA* 33 1400 40 0.8 20 64 2.8 5.2
944U520K142AB* 52 1400 51 1.1 30 60 3.0 4.5
944U700K142AC* 70 1400 64 1.4 40 59 3.1 4.0
* M = M8 Stud I = M5 Insert
Part Numbering System
1
1.5
2
2.5
3
3.5
4
100 1000 10000 100000
ESR (mΩ)
Frequency (Hz)
160 µF 800 Vdc ESR vs Frequency and Temperature
85 ºC
65 ºC
45 ºC
25 ºC
0 ºC
-20 ºC
-40 ºC
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
10 100 1000 10000 100000
Rated Ripple Current (A)
Frequency (Hz)
45 ºC
55 ºC
65 ºC
75 ºC
85 ºC
Type 944U Polypropylene, DC Link Capacitors
High Current, Low Prole for Inverter Applications
NOTE: Other ratings, sizes and performance specications are available. Contact us.
Film
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Expected Lifetime Predictions
Expected Lifetime vs Hot Spot Temperature and Applied DC Voltage
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1000 10000 100000 1000000
Expected Lifetime (h)
Va / Vr
50ºC
60ºC
70ºC
85ºC
Type 944U Polypropylene, DC Link Capacitors
High Current, Low Prole for Inverter Applications
C (µF)
ESR (mΩ)
f (kHz)
I (A
rms
)
T
A
(°C)
T
C
(°C)
Θ (°C/W)
Θ
CA
(°C/W)
Θ
CC
(°C/W)
v (m/s)
V
A
(V
DC
)
V
R
(V
DC
)
Determine ESR at Operating Frequency
Use the 10 kHz ESR from the ratings tables.
For operation below 10 kHz, the ESR will need to be adjusted using the following
equation: ESR - 31.83/(10C) + 31.83/(fC).
Determine Thermal Resistance at Operating Frequency and Air Flow
Compute Θ = Θ
CC
+ Θ
CA
. In the ratings tables, Θ
CA
is for still air. For v = 0 to 5 m/s,
multiply Θ
CA
by [(5 + 17.6(0.1
0.66
)) / (5 + 17.6(v + 0.1)
0.66
)]
Determine Expected Lifetime
Look up Expected Lifetime on the graph using V
A
/V
R
and T
C
= T
A
+ I
2
(ESR/1000) Θ
The maximum allowed temperature rise is 40 °C and the maximum allowed core
temperature is 95 °C.
Capacitance:
Equivalent Series Resistance:
Frequency:
Ripple Current:
Ambient Temperature:
Core Temperature:
Total Thermal Resistance:
Thermal Resistance case-to-ambient:
Thermal Resistance core-to-case:
Airow Speed:
Applied Voltage:
Rated Voltage:
Film
P1-P3P4-P4

B32778G4756J000

Mfr. #:
Buy B32778G4756J000
Manufacturer:
EPCOS / TDK
Description:
Film Capacitors ALUM LYTIC RADIAL 820 UF 25 V
Lifecycle:
New from this manufacturer.
Delivery:
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