V I S H AY I N T E R T E C H N O L O G Y, I N C .
ALUMINUM CAPACITORS
157 PUM-SI
Aluminum Electrolytic Capacitors
Power Ultra-Miniature Snap-In
KEY BENEFITS
• Higher voltage rating: up to 500 V
• Long useful life: ≥ 5000 hours at +85 °C
• In addition to the standard 2-pin version, a 3-pin keyed polarity version is available
APPLICATIONS
• Power supply (back-up)
• Industrial motor control (power from mains)
• Inverter (power to mains)
• Traction
• Pulsed power
• LED driver
• Pumps (water circulating)
PUM-SI
157
7 PUM-SI
ay
BCcomponents
RESOURCES
omponents
• Datasheet: 157 PUM-SI - www.vishay.com/doc?28338
• For technical questions contact aluminumcaps2@vishay.com
• Material categorization: For definitions please see www.vishay.com/doc?99912
olytic capacitors,
acitors,cylindrical aluminum
nsions,
eeve
ndrical
aluminum
le
Product sheet
1/2
definitions of compliance
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND
doc?99912
THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
s of compliance
A WORLD OF
SOLUTIONS
VMN-PT0459-1506
www.vishay.com
V I S H AY I N T E R T E C H N O L O G Y, I N C .
ALUMINUM CAPACITORS
157 PUM-SI
157 PUM-SI
www.vishay.com
Vishay BCcomponents
Aluminum Electrolytic Capacitors
Aluminum
Electrolytic Capacitors
Power
Ultra-Miniature
Snap-In
Power Ultra Miniature Snap-In
FEATURES
• Up to 500 V
• Useful life: 5000 h at 85 °C
• Polarized aluminum electrolytic capacitors,
non-solid electrolyte
• Large types, very small dimensions, cylindrical aluminum
case, insulated with a blue sleeve
• Keyed polarity version available
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
159
PUL-SI
APPLICATIONS
APPLICATIONS
and
audio/video
systems
•• General
General purpose,
purpose,industrial
industrial,
and
audio/video
systems
105 °C
057
PSM-SI
smaller
dimensions
•• Smoothing
Smoothingand
andfiltering
filtering
longer life
higher ripple
157
PUM-SI
198
PHR-SI
MARKING
The capacitors are marked (where possible) with the
following information:
QUICK REFERENCE DATA
VALUE
56 μF to 2200 μF
Category temperature range
Endurance test at 85 °C
Load life at 85 °C
Useful life at 85 °C
Useful life at 40 °C,
1.4 x IR applied
Shelf life at 0 V, 85 °C
Max. RMS value of ripple voltage
Based on sectional specification
Climatic category IEC 60038
Revision 20-May-15
• Rated capacitance (in μF)
22 x 25 to 35 x 60
Rated voltage range, UR
• Energy storage in pulse systems
• Energy storage in pulse systems
Fig. 1
DESCRIPTION
Nominal case sizes 
(Ø D x L in mm)
Rated capacitance range
(E6/E12 series), CR
Tolerance on CR
power
supplies
•• Standard
Standardand
andswitched
switchedmode
mode
power
supplies
± 20 %
200 V, 250 V,
500 V
400 V, 450 V
-25 °C to +85 °C
3000 h
3000 h
5000 h
90 000 h
1000 h
12 V
n/a
IEC 60384-4 / EN130300
25/085/56
• Tolerance on rated capacitance, code letter in accordance
with IEC 60062 (M for ± 20 %)
• Rated voltage (in V)
• Date code (YYMM or in 2 digits according to IEC 60062)
• Name of manufacturer
• Code for factory of origin
• “-” sign to identify the negative terminal, visible from the
top and side of the capacitor
• Code number, last 8 digits 157 xxxxx
• Climatic category in accordance with IEC 60068



SELECTION CHART FOR CR, UR, AND RELEVANT NOMINAL CASE SIZES (Ø D x L in mm)
CR
(μF)
47
56
68
82
100
Product
sheet20-May-15
Revision:
200
-
250
-
UR (V)
400
22 x 25
22 x 25
22 x 30
-
450
22 x 25
22 x 30
22 x 30
25 x 25
22 x 35
25 x 30
-
500
22 x 25
22 x 30
25 x 25
22 x 35
25 x 30
30 x 25
2/21
VMN-PT0459-1506
Document Number:
28338
For technical questions, contact: aluminumcaps2@vishay.com
THIS DOCUMENT
ISDOCUMENT
SUBJECT TO
CHANGETO
WITHOUT
PRODUCTS
DESCRIBED
HEREINHEREIN
AND AND THIS DOCUMENT
THIS
IS SUBJECT
CHANGENOTICE.
WITHOUTTHE
NOTICE.
THE PRODUCTS
DESCRIBED
THIS DOCUMENT ARE SUBJECT ARE
TO SPECIFIC
DISCLAIMERS,
SET FORTHSET
AT www.vishay.com/doc?91000
www.vishay.com
SUBJECT TO
SPECIFIC DISCLAIMERS,
FORTH AT www.vishay.com/doc?91000