UNI-PAC™
Power Inductors
(Surface Mount)
Description
RoHS
2002/95/EC
• Miniature surface mount design
• Inductance range from 0.470uH to 1000uH
• Current range from 19.2 to .47 Amps
• Maximum power density
• Ideal for applications requiring low inductance and high
current in a miniature package
• Modified standard products are available
• Protective case eliminates core breakage
• Meets UL 94V-0 flammability standard
• Ferrite core material
Applications
• DC-DC converters on board level and industrial
products
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
max.
Part
Number
UP1B-R47-R
UP1B-1R0-R
UP1B-1R5-R
UP1B-2R2-R
UP1B-3R3-R
UP1B-4R7-R
UP1B-6R8-R
UP1B-100-R
UP1B-150-R
UP1B-220-R
UP1B-330-R
UP1B-470-R
UP1B-680-R
UP1B-101-R
UP1B-151-R
UP1B-221-R
UP1B-331-R
UP2B-R47-R
UP2B-1R0-R
UP2B-1R5-R
UP2B-2R2-R
UP2B-3R3-R
UP2B-4R7-R
UP2B-6R8-R
UP2B-100-R
UP2B-150-R
UP2B-220-R
UP2B-330-R
UP2B-470-R
UP2B-680-R
UP2B-820-R
UP2B-101-R
UP2B-151-R
Inductance
µH (rated)
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
220.0
330.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
OCL
(1)
µH±20%
0.569
1.20
1.61
2.62
3.79
5.15
6.87
11.00
16.00
23.50
36.00
48.50
73.52
112.67
152.40
223.10
331.90
0.595
1.00
1.46
2.56
3.23
4.77
6.63
9.73
15.43
22.50
33.13
48.65
68.17
84.1
102.60
150
NOW
PRO AVAIL
TECT ABL
I VE E WI
CAS TH A
E
Packaging
• Supplied in tape and reel packaging, 900 (UP1B), 550
(UP2B), 450 (UP3B), and 275 (UP4B) per reel
I
RMS
(2)
Amperes
6.0
4.4
4.2
3.1
2.9
2.2
1.7
1.5
1.2
1.0
0.82
0.72
0.58
0.47
0.40
0.36
0.28
10.6
9.3
8.3
7.2
6.5
5.5
5.0
4.3
3.5
2.8
2.1
1.7
1.5
1.34
1.2
1.0
I
SAT
(3)
Amperes
7.7
5.3
4.5
3.5
3.0
2.6
2.2
1.9
1.5
1.2
0.99
0.87
0.67
0.53
0.46
0.38
0.31
11.4
9.9
7.9
6.1
5.1
4.2
3.6
3.3
2.4
2.0
1.7
1.4
1.2
1.03
0.95
0.77
DCR
(4)
Ohms max.
0.0097
0.0177
0.0200
0.0363
0.0428
0.0544
0.0897
0.1107
0.1747
0.2541
0.3670
0.4740
0.7320
1.11
1.61
1.96
3.10
0.0049
0.0065
0.0081
0.0107
0.0128
0.0165
0.0202
0.0267
0.0410
0.0617
0.0917
0.1388
0.1787
0.2235
0.2707
0.4100
Notes:
(1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate
∆T
of 40°C. at an ambient temperature
of 85˚C.
(3) Peak current for approximately 30% rolloff UP1B, 3B, 4B. 10% rolloff
UP2B @ 20°C
(4) DCR limits 20°C.
UNI-PAC™
Power Inductors
(Surface Mount)
Part
Number
UP2B-221-R
UP2B-331-R
UP2B-471-R
UP2B-681-R
UP2B-821-R
UP2B-102-R
UP3B-R47-R
UP3B-1R0-R
UP3B-1R5-R
UP3B-2R2-R
UP3B-3R3-R
UP3B-4R7-R
UP3B-6R8-R
UP3B-100-R
UP3B-150-R
UP3B-220-R
UP3B-330-R
UP3B-470-R
UP3B-680-R
UP3B-101-R
UP3B-151-R
UP3B-331-R
UP4B-R47-R
UP4B-1R0-R
UP4B-1R5-R
UP4B-2R2-R
UP4B-3R3-R
UP4B-4R7-R
UP4B-6R8-R
UP4B-100-R
UP4B-150-R
UP4B-220-R
UP4B-330-R
UP4B-470-R
UP4B-680-R
UP4B-101-R
UP4B-151-R
UP4B-221-R
UP4B-331-R
UP4B-471-R
Inductance
µH (rated)
220.0
330.0
470.0
680.0
820.0
1000.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
330.0
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10.0
15.0
22.0
33.0
47.0
68.0
100.0
150.0
220.0
330.0
470.0
OCL
(1)
µH±20%
223
338
471
700
823
1005
0.452
1.34
2.08
3.01
3.96
5.00
7.70
11.00
16.38
23.93
33.85
51.00
69.50
101.40
152.9
332.80
0.473
0.916
1.52
2.27
3.14
5.34
6.66
9.77
15.61
22.61
34.30
48.10
69.14
99.42
146.90
221.40
330.00
470.10
I
RMS
(2)
Amperes
0.773
0.676
0.553
0.452
0.423
0.369
16.0
12.5
10.0
9.2
8.0
6.5
5.8
4.3
3.9
3.1
2.4
1.9
1.6
1.4
1.2
0.75
19.2
17.3
13.4
12.0
11.0
8.6
8.3
6.8
5.5
4.5
3.7
3.1
2.4
2.0
1.7
1.4
1.1
0.91
I
SAT
(3)
Amperes
0.637
0.510
0.427
0.355
0.334
0.300
25.1
15.3
12.0
10.2
9.3
7.7
6.2
5.2
4.3
3.7
3.0
2.4
2.0
1.8
1.4
0.98
51.7
37.3
28.9
23.7
20.2
15.6
14.1
11.5
9.1
7.6
6.1
5.2
4.3
3.6
3.0
2.4
2.0
1.7
DCR
(4)
Ohms max.
0.6717
0.8783
1.31
1.97
2.24
2.96
0.0021
0.0034
0.0053
0.0074
0.0083
0.0114
0.0183
0.0260
0.0317
0.0490
0.0688
0.1082
0.1558
0.2053
0.2960
0.7330
0.0019
0.0023
0.0039
0.0048
0.0057
0.0093
0.0100
0.0150
0.0230
0.0340
0.0520
0.0740
0.1200
0.1700
0.2392
0.3571
0.5800
0.8330
Notes:
(1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate
∆T
of 40°C. at an ambient temperature
of 85˚C.
(3) Peak current for approximately 30% rolloff UP1B, 3B, 4B. 10% rolloff
UP2B @ 20°C
(4) DCR limits 20°C.
UNI-PAC™
Power Inductors
(Surface Mount)
Mechanical Diagrams
UP1B Series
PCB PAD LAYOUT
TOP VIEW
8.89
Max
2.42
Ref
8.89
5.08
SCHEMATIC
1
FRONT VIEW
4.04
Max
5.0
Max
6.10
Max
UP1B
XXX
wwllyy R
4.1
0.762
Min
2
1.9
COMPONENT VIEW
UP2B Series
PCB PAD LAYOUT
TOP VIEW
13.97
Max
4.22
Ref
14.0
SCHEMATIC
FRONT VIEW
6.73
Max
6.0
Max
9.4
1
7.3
10.41
Max
UP2B
XXX
wwllyy R
0.762
Min
2
2.3
COMPONENT VIEW
UP3B Series
TOP VIEW
PCB PAD LAYOUT
19.3
UP3B
XXX
wwllyy R
SIDE VIEW
SCHEMATIC
11.7
8.13
max
1
2
13.21
max
1
6.8
max
8.7
12.70
3.8
2
19.30
max
COMPONENT VIEW
UP4B Series
TOP VIEW
PCB PAD LAYOUT
22.1
UP4B
XXX
wwllyy R
SIDE VIEW
SCHEMATIC
13.5
11.18
max
1
2
15.00
max
1
7 87
max
12.0
14.61
4.3
2
22.10
max
COMPONENT VIEW
Dimensions in Millimeters.
wwllyy = (date code) R = revision level
xxx = Inductance value per family chart
UNI-PAC™
Power Inductors
(Surface Mount)
Packaging Information
UP1B Series
1.5 Dia.
2.0
4.0
A
1.75
1
7.5
9.3
2
4.4
5.6
SECTION A-A
2.3
6.4
12.0
Direction of feed
Dimensions in millimeters.
16
ACTUAL SIZE
UNI-PAC 1B
A
Parts packaged on 13" Diameter reel,
900 parts per reel.
UP2B Series
1.5 Dia.
2.0
4.0
A
1
1.75
11.5
14.3
24
2
5.4
6.8
SECTION A-A
5.1
10.7
16.0
Direction of feed
Dimensions in millimeters.
ACTUAL SIZE
UNI-PAC 2B
A
Parts packaged on 13" Diameter reel,
550 parts per reel.
UP3B Series
2.0
1.5 Dia.
4.0
A
1
1.75
14.2
19.6
2
5.9
7.7
SECTION A-A
5.8
13.5
28.4 32
ACTUAL SIZE
UNI-PAC 3B
A
16.0
Direction of feed
Dimensions in millimeters.
Parts packaged on 13" Diameter reel,
450 parts per reel.
UP4B Series
2.0
1.5 Dia.
4.0
A
1
1.75
14.2
22.3
2
7.2
9.0
SECTION A-A
11.1
15.3
28.4 32
A
24.0
Direction of feed
Dimensions in millimeters.
ACTUAL SIZE
UNI-PAC 4B
Parts packaged on 13" Diameter reel,
275 parts per reel.
UNI-PAC™
Power Inductors
(Surface Mount)
Inductance Characteristics
UP1B-1R0
Typical Inductance & Energy vs Saturation Current
UP1B-100
Typical Inductance & Energy vs Saturation Current
UP1B-470
Typical Inductance & Energy vs Saturation Current
UP2B-1R0
Typical Inductance & Energy vs Saturation Current
UP2B-100
Typical Inductance & Energy vs Saturation Current
UP2B-470
Typical Inductance & Energy vs Saturation Current
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