Datasheet
257 PRM-SI
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Vishay BCcomponents
Revision: 05-Jun-2020
1
Document Number: 28460
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
Aluminum Electrolytic Capacitors
Power Ripple Miniature Snap-In
Fig. 1
FEATURES
• Up to 500 V
• Useful life: 5000 h at 85 °C
• > 10 years 24/7 application life up to 50 °C
• 10 % to 20 % higher ripple current rating than 093 PMG-SI
• Keyed polarity version available
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Mains connected medical equipment, test and
measurement instruments, and industrial control units
• Motor drives for internal transport, escalators, or
automatic gates
• Welding inverters for consumer use
• Audio amplifiers
MARKING
The capacitors are marked (where possible) with the
following information:
• Rated capacitance (in μF)
• 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 257 xxxxx
• Climatic category in accordance with IEC 60068
QUICK REFERENCE DATA
DESCRIPTION VALUE
Nominal case sizes
(Ø D x L in mm)
22 x 25 to 35 x 60
Rated capacitance range, C
R
56 μF to 3300 μF
Tolerance on C
R
± 20 %
Rated voltage range, U
R
200 V to 450 V 500 V
Category temperature range -40 °C to +85 °C -25 °C to +85 °C
Endurance test at 85 °C 3000 h
Useful life at 85 °C 5000 h
Shelf life at 0 V, 85 °C 1000 h
Based on sectional
specification
IEC 60384-4 / EN 130300
Climatic category IEC 60038 40 / 85 / 56 25 / 85 / 56
257
PRM-SI
093
PMG-SI
259
PHM-SI
105 °C
Longer life Longer life
198
PHR-SI
SELECTION CHART FOR C
R
, U
R
, AND RELEVANT NOMINAL CASE SIZES (Ø D x L in mm)
C
R
(μF)
U
R
(V)
200 250 400 450 500
56----22 x 25
68 - - - 22 x 25 -
82
- - 22 x 25 - 22 x 30
----25 x 25
100
- - - 22 x 30 22 x 35
- - - 25 x 25 25 x 30