United Chemi-Con is introducing four new snap mount aluminum electrolytic capacitor series specifically designed for
higher ripple current capability. These new series include the U91F, U92F, U92L and U92X which also feature very long life,
wide temperature range, high voltage ratings and a variety of case sizes and terminal styles.
The U91F series is a high temperature series with a lifetime rating of 5,000 hours at 105 C. The three U92 series offer a
lifetime rating of 5,000 hours for U92F, 10,000 hours for U92L or 15,000 hours for U92X at 85 C. The rated lifetime for all
these series is measured with the rated ripple current applied.
All the U91/U92 series capacitors are RoHS compliant and are manufactured with or without an end disk in either a
standard Pb-free PVC sleeve or optional PET sleeve. There are two basic types of PC board terminals, snap-in or straight
standoffs. All of the new snap-in series offer 2, 3, 4 or 5 -pin layouts as either standard or optional configurations depending
on case size. Straight standoff terminals, 5 -pin configuration, are available as an option for the larger case diameters.
Please contact United Chemi-Con with any questions about these new snap mount capacitors. Custom designs are also
available upon request.
Table of Contents
Specifications Guide for U91/U92 High Ripple Snap Mount Capacitors
Series
Page
No.
Terminal
Type
Features
RoHS
Compliant
Temperature
Range
( C)
Voltage
Range
(V)
Capacitance
Range
(µF )
Endurance
(Hrs. R*)
at
85 C
at
105 C
U91F
4
Snap
Mount
Specific High Ripple Design,
High Temperature, Long Life,
Pin Options
Specific High Ripple Design,
Long Life, Pin Options
25 C
~
105 C
350~500
120~2,700
—
5,000
U92F
11
Snap
Mount
25 C
~
85 C
350~500
180~3,300
5,000
—
U92L
18
Snap
Mount
Specific High Ripple Design,
Longer Life, Pin Options
25 C
~
85 C
350~500
150~3,300
10,000
—
U92X
25
Snap
Mount
Specific High Ripple Design,
Longest Life, Pin Options
25 C
~
85 C
350~500
150~3,300
15,000
—
*
R = With rated ripple current applied.
In the construction of the components described, the full intent of the specification will be met. United Chemi-Con, however, reserves the right to make, from
time to time, such departures from the detail specifications as may be required to permit improvements in the design of its products. Components made under
military approvals will be in accordance with the approval requirements. The information included herein is believed to be accurate and reliable. However, United
Chemi-Con assumes no responsibility for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
3
U91F
Series
Snap Mount
Specific Design
For Higher Ripple
Current
350 to 500VDC
Voltage Range
RoHS Compliant
105 C Maximum
Temperature
5,000 Hours
Lifetime at 105 C
The U91F series is a high temperature snap-in series specifically designed for higher ripple current
capability. The U91F capacitors have an endurance rating of 5,000 hours at 105 C with the rated
ripple current applied. All the U91F series capacitors are RoHS compliant and available in a variety
of sizes, with or without an end disk, and encased in a standard Pb-free PVC sleeve or an optional
PET sleeve. Snap-in terminals (2, 4 or 5 -pin configurations) are available as standard or optional
styles depending on case size. Straight standoff terminals (5 -pin configuration) are an option for the
40, 45 and 50mm can diameters.
SNAP MOUNT 105 C
U91F
Summary of Specifications
PC board snap-in or straight standoff terminals available as standard or optional
styles depending on pin styles and case size.
Capacitance range: 120 to 2,700µF.
Voltage range: 350 to 500VDC.
Category temperature range: 25 C to 105 C.
Leakage current: 3 CV (µA) or 3mA, whichever is smaller, after 5 minutes at 20 C.
Standard capacitance tolerance: 20%
Nominal case size (D L): 30 40mm to 50 105mm.
Rated lifetime: 5,000 hours at 105 C with the rated ripple current applied.
4
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
U91F Series
U91F Specifications - Snap Mount
Item
Category Temperature Range
Rated Voltage Range
Capacitance Range
Capacitance Tolerance
Leakage Current
25 to 105 C
350 to 500VDC
120 to 2,700 F
20% ( M ) at
20 C, 120Hz
Characteristics
Engineering Bulletin Aug 2013
I
=
3 CV ( A ) or 3mA, whichever is smaller, after 5 minutes at
At
20 C, 120Hz
20 C.
Where I = Max. leakage current ( A ), C = Nominal capacitance ( F ) and V = Rated voltage ( V )
Dissipation Factor ( Tan )
SNAP MOUNT 105 C
Rated Voltage ( V )
Tan
( DF ) Max.
350 - 400
0.15
420 -500
0.20
U91F
Low Temperature
Characteristics
At 120Hz, impedance ( Z ) ratio between the
the values given below.
Rated Voltage ( V )
Z ( 25 C ) / Z ( 20 C )
350 -500
8
25 C value and
20 C value shall not exceed
Rated Ripple Current Multipliers
Ambient Temperature ( C )
65 C
2.82
85 C
1.73
105 C
1.00
Frequency (Hz )
DC Rated Voltage
350 - 450V
500V
50Hz
0.77
0.70
120Hz
1.00
1.00
300Hz
1.16
1.16
1kHz
1.30
1.30
10kHz
1.41
1.41
100kHz
1.43
1.43
Endurance
(Load Life)
The following specifications shall be satisfied when the capacitors are restored to 20 C after
subjecting them to DC voltage for 5,000 hours at 105 C with the rated ripple current applied.
The sum of the DC voltage and peak AC voltage must not exceed the full rated voltage of
the capacitors.
Capacitance change:
≤
20% of initial measured value
Tan ( DF )
:
≤
200% of initial specified value
Leakage current
:
≤
initial specified value
Shelf Life
The following specifications shall be satisfied when the capacitors are restored to 20 C after
exposing them for 1,000 hours at 105 C without voltage applied. The rated voltage shall be
applied to the capacitors for a minimum of 30 minutes, at least 24 hours and not more than
48 hours before the measurements.
Capacitance change:
≤
20% of initial measured value
Tan ( DF )
:
≤
150% of initial specified value
Leakage current
:
≤
initial specified value
Product specifications are subject to change without notice.
Ask for UCC product bulletins and review specifications before purchase and/or use. Please use our products based on parameters specified in our bulletins.
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
First of all, I would like to express my sincere gratitude to the organizers EEWORLD and digikey for their efforts in this competition and for providing development boards and various resources.
At th...
[b][color=#5E7384]This content is originally created by EEWORLD forum user [size=3]tiankai001[/size]. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and...
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