P522.B (5/05)
US 858 674 8100
••
UK 44 1483 401 700
••
France 33 3 84 35 04 04
••
Singapore 65 6287 8998
••
Taiwan 886 2 2698 0228
••
Hong Kong 852 2788 6588
••
http://www.pulseeng.com
SMT POWER INDUCTORS
Power Beads - Volta 1 & 2 Series
.010
0,25 2X.065
1,65
.125
3,18
MAX
.276
7,01MAX
.130
3,30
P1681
Date Code
Country of Origin
.255
6,48
MAX
SUGGESTED PAD LAYOUT
.280
7,11
.150
3,81
.100
2,54
.177
4,50
.010
0,25
2X.079
2,01
.110
2,80
P2004/P2005
PA0229
Date Code
Country of Origin
.350
8,89MAX
.250
6,35
MAX
MAX
SUGGESTED PAD LAYOUT
.350
8,89
.135
3,43
.150
3,81
.130
3,30MAX
.010
0,25 4X .065
1,65 2X .031
1,79
2X .020
0,51
.150
3,81
.296
7,52
2X .085
2,16
2X .065
1,65
.276
7,01MAX
.255
6,48MAX
1
2
4
3
PA0274
Date Code
Country of
Origin
.085
2,16
SUGGESTED PAD LAYOUT
2X .045
1,14
2X .040
1,02
2X .015
0,38
.135
3,43
.360
9,14
2X .099
2,51
2X .060
1,52
SUGGESTED PAD LAYOUT
.177
4,50MAX
.010
0,25 4X .079
2,01
.075
1,91
.350
8,89MAX
.250
6,35MAX
1
2
4
3
PA0277
Date Code
Country of Origin
2X .040
1,02
1
2
P1681
P2004
P2005
PA0229
1
4
2
3
PA0274
PA0277
Mechanicals
Volta 1 Volta 2
Weight.........0.464 grams ....0.945 grams
Tape & Reel .....1500/reel.........1000/reel
Height: 3.2mm and 4.5mm Max
Footprint: 7.0 x 6.4mm Max and 8.9 x 6.4mm Max
Current Rating: up to 16A
Inductance Range: 0.1µH to 0.6µH
Frequency Range: up to 2MHz
Inductance DCR Inductance Saturation Current 2Heating3Trise4
Core Loss Factor4
Part5, 6
@Irated Irated1
(mΩ)@0ADC (ADC)Current Factor
Number (nH ± 20%) (ADC)TYP MAX (nH ± 20%) 25°C 100°C (A) K0 K1 K2
VOLTA 1
P1681 95 15 0.31 0.39 100 18 16.2 15 1.0032 .00319 .07381
PA0274 475*6.0 1.60 1.8*700 7 4.8 12 1.4000 .00638 .24632
VOLTA 2
PA0229 92 16 0.68 0.80 100 36 30 16 2.2458 .00638 .03975
P2005 142.5 15 0.45 0.56 150 18 16.2 15 2.2458 .00638 .05961
P2004 190 15 0.45 0.56 200 16.8 15.1 15 2.2458 .00638 .07949
PA0277 600*10.7 2.3 2.53*700 12.6 8.0 10.7 2.0400 .01276 .13196
*DCR and Inductance rating for indicated parts is for both windings tied in series.
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
Volta 1 Volta 2
Schematic
Dimensions: Inches
mm
Unless otherwise specified,
all tolerances are ± .010
0,25
.069
1,75
USER DIRECTION OF FEED
.630
± .012
16,00
± 0,30
.079
2,00
.157
4,00
.472
12,00
.270
6,86
.295
7,49
TAPE & REEL LAYOUT
.285
7,24
.012
0,30
.130
3,30.069
1,75
USER DIRECTION OF FEED
.630
± .012
16,00
± 0,30
.079
2,00
.157
4,00
.472
12,00
.265
6,73
.295
7,49
TAPE & REEL LAYOUT
.340
8,64
.012
0,30
.180
4,57
P522.B (5/05)
For More Information:
UNITED STATES
(Worldwide)
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
http://www.pulseeng.com
TEL: 858 674 8100
FAX: 858 674 8262
UNITED KINGDOM
(Northern Europe)
3 Huxley Road
Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: 44 1483 401700
FAX: 44 1483 401701
FRANCE
(Southern Europe)
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
TAIWAN, R.O.C.
(Northern Asia)
3F-4, No. 81, Sec. 1
HsinTai Wu Road
Hsi-Chih, Taipei Hsien
Taiwan, R.O.C.
Tel: 886 2 2698 0228
FAX: 886 2 2698 0948
SINGAPORE
(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 6287 8998
FAX: 65 6280 0080
HONG KONG
(China/Hong Kong)
Unit 11, 11/F
Wah Lai Industrial Centre
10-14 Kwei Tei Street,
Fotan, Shatin, Hong Kong
TEL: 852 2788 6588
FAX: 852 2776 1055
DISTRIBUTOR
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
names mentioned herein may be trademarks or registered trademarks of their respective owners.
SMT POWER INDUCTORS
Power Beads - Volta 1 & 2 Series
Notes from Tables
1. The rated current as listed is either the saturation current or the
heating current depending on which value is lower.
2. The saturation current is the current which causes the
inductance to drop by 10% at the stated ambient temperatures
(-40°C, 25°C, 125°C). This current is determined by placing the
component in the specified ambient environment and applying
a short duration pulse current (to eliminate self-heating effects)
to the component.
3. The heating current is the DC current which causes the temper-
ature of the part to increase by approximately 30°C. This
current is determined by mounting the component on a PCB
with .25" wide, 3 oz. equivalent copper traces, and applying the
current to the device for 30 minutes.
4. In high volt*time applications, additional heating in the
component can occur due to core losses in the inductor
which may neccessitate derating the current in order to limit
the temperature rise of the component. In order to determine
the approximate total losses (or temperature rise) for a given
application both copper losses and core losses should be taken
into account.
5. Optional Tape & Reel packaging can be ordered by adding a
“T” suffix to the part number, (i.e. PA0274T).
6. To order RoHS compliant part, add the suffix "NL" to the part
number (i.e. PA0274 becomes PA0274NL and PA0274T
becomes PA0274NLT).
Estimated Temperature Rise:
Trise = Coreloss (mW) + Copper Loss (mW)
.833
(°C)
K0
Coreloss = K1 * (Fsw(kHz))1.6688 * (K2 * dI)2.17 (mW)
Copper Loss = Irms2* DCR(m
Ω
) (mW)
Irms = IDC2+ dI 2½
(Arms)
12
Fsw(kHz) = switching frequency (kHz)
dI = delta I across the component (A)
The temperature of the component (ambient temperature +
temperature rise) should be within the listed operating
temperature range.
0
20
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
Normalized I
DC
Percentage of Initial Inductance
P2 P3
40
60
80
100
120 P1
P1 - Initial Inductance, Lo (.1V
RMS
, 1MHz, 0A
DC
, 25
°
C)
P2 - Inductance (typically 95% L
O
) at Rated I
DC
.
P3 - Inductance (typically 90% L
O
) at I
PK
.Normalized Inductance
Inductance vs Current Characteristics
P1681, P2005, P2004
PA0277 Inductance vs. DC Current at 25°C
0
20
40
60
80
100
120
0 2.5 5 7.5 10 12.5 15 17.5 20
Current (ADC)
Percent of Initial Inductance
(%)
PA0274 Inductance vs. DC Current at 25°C
0
20
40
60
80
100
120
024681012
Current (ADC)
Percent of Initial Inductance
(%)
Current (ADC)
Percent of Initial Inductance
(%)
0
20
0 5 10 15 20 25 30 35 40 45
40
60
80
100
120
25
°
100
°
PA0229 Inductance vs. DC Current at 25°C
©2005, Pulse Engineering, Inc. All rights reserved.
