157 PUM-SI
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Vishay BCcomponents
Aluminum Capacitors
Power Ultra Miniature Snap-In
FEATURES
• Polarized aluminum electrolytic capacitors,
non-solid electrolyte
• Large types, very small dimensions, cylindrical
aluminum case, insulated with a blue sleeve
• Useful life: 5000 h at 85 °C
• Keyed polarity version available
• Material categorization: For definitions please see
www.vishay.com/doc?99912
APPLICATIONS
159
PUL-SI
• General purpose, industrial and audio/video systems
• Smoothing and filtering
105 °C
057
PSM-SI
smaller
dimensions
• Standard and switched mode power supplies
longer life
higher ripple
157
PUM-SI
198
PHR-SI
MARKING
Fig. 1
The capacitors are marked (where possible) with the
following information:
QUICK REFERENCE DATA
DESCRIPTION
Nominal case sizes
(Ø D x L in mm)
Rated capacitance range
(E6/E12 series), CR
Tolerance on CR
Rated voltage range, UR
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
Based on sectional
specification
Climatic category IEC 60038
• Energy storage in pulse systems
• Rated capacitance (in μF)
VALUE
• Tolerance on rated capacitance, code letter in accordance
with IEC 60062 (M for ± 20 %)
22 x 25 to 35 x 60
• Rated voltage (in V)
56 μF to 2200 μF
• Date code (YYMM or in 2 digits according to IEC 60062)
± 20 %
200 V, 250 V
400 V, 450 V
- 25 °C to + 85 °C
3000 h
3000 h
5000 h
• 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
90 000 h
1000 h
IEC 60384-4/EN130300
25/085/56
SELECTION CHART FOR CR, UR, AND RELEVANT NOMINAL CASE SIZES (Ø D x L in mm)
CR
(μF)
56
68
82
100
120
Revision: 09-Mar-12
UR (V)
200
-
250
-
400
22 x 25
22 x 25
22 x 30
22 x 30
-
450
22 x 25
22 x 30
22 x 30
25 x 25
22 x 35
25 x 30
22 x 40
25 x 30
30 x 25
Document Number: 28338
1
For technical questions, contact: aluminumcaps2@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
