ERU chokes
ERU 20, helically wound
Series/Type:
Date:
B82559*A020
February 2016
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EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS’ prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
ERU chokes
Helically wound
Rated inductance 1.0 .... 35 µH
Saturation current 9.3 ... 50 A
Construction
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■
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■
■
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B82559*A020
ERU 20
High temperature ferrite core
Magnetically shielded
Helical winding
Self-leaded construction
Under body termination
3 pins for improved reliability
Features
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■
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High rated current
Extremely low DC resistance
Very low profile and extremely small footprint
Suitable for pick-and-place processes
RoHS-compatible
Easily customized
AEC-Q200 qualified
Applications
Energy storage chokes for
■
DC-DC converters
■
VRM modules
■
POL converters
■
Solar converters
Terminals
Lead-free tinned
Marking
Manufacturer, ordering code, date of manufacture and
production place (YYWWD/X),
Delivery mode and packing units
■
Blister tape
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
02/16
ERU chokes
Helically wound
Dimensional drawing and layout recommendation
B82559*A020
ERU 20
Dimensions in mm
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
02/16
ERU chokes
H
Helically wound
Taping and packing
Tape:
B82559*A020
ERU 20
Dimensions in mm
Reel:
Dimensions in mm
Height (mm)
component h cavity H
9.8
10.7
12.1
14.1
12.5
12.5
13.9
15.9
Packing unit
per reel
130
130
115
100
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
02/16
ERU chokes
Helically wound
Technical data and measuring conditions
Rated inductance L
R
Inductance tolerance
Saturation current I
Sat
DC resistance R
DC
Self-resonant frequency
High voltage: N1 - core
Solderability
(test of wettability of the pins)
Resistance to soldering heat
Operating temperature
Storage conditions (packaged)
Measured at 100 kHz, 0.1 V, +25 °C
10%
B82559*A020
ERU 20
Current that will result in an approximately 10% drop in
the inductance values at the specified temperature
Measured at +25 °C
2 MHz
200 V DC, 1 s
(245 5) °C, (3 0.3) s,
wetting of soldering area 95%
(based on IEC 60068-2-58, solder bath method)
To JEDEC J-STD 020D (Tc: +245 °C on pin)
40 °C … +150 °C
–25 °C … +40 °C,
75% RH
Characteristics and ordering codes
L
R
H
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
20.0
29.0
35.0
I
sat, 25°C
A
50.0
50.0
43.0
34.0
22.0
19.0
18.3
15.3
14.3
11.0
9.3
I
sat, 100°C
R
DC
(max) R
DC
(typ)
A
45.0
43.0
38.0
29.0
19.0
16.5
16.0
13.5
12.0
9.5
7.5
m
0.65
0.90
1.20
1.50
2.40
2.90
3.90
4.95
6.40
7.10
7.10
m
0.55
0.80
1.00
1.30
2.15
2.70
3.70
4.65
5.70
6.65
6.65
Height h Approx. Ordering code
(nom.) weight
mm
9.8
10.7
12.1
14.1
9.8
9.8
10.7
12.1
14.1
14.1
14.1
g
15.7
17.6
19.8
22.5
15.7
16.3
18.1
19.7
22.5
23.9
23.9
B82559A2102A020
B82559A3152A020
B82559A4222A020
B82559A5332A020
B82559A4472A020
B82559A5682A020
B82559A7103A020
B82559A9153A020
B82559A0203A020
B82559A0293A020
B82559A0353A020
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
02/16
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