®
UNI-PAC™
Power Inductors
(Surface Mount)
Description
• 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
• RoHS compliant (-R option)
Applications
• DC-DC converters on board level and industrial
products
Environmental Data
• Storage temperature range: -40C to +125C
• Operating ambient temperature range: -40C to +85C
(range is application specific)
• Infrared reflow temperature: +240C for 30 seconds
maximum
Part
Number
UP1B-R47
UP1B-1R0
UP1B-1R5
UP1B-2R2
UP1B-3R3
UP1B-4R7
UP1B-6R8
UP1B-100
UP1B-150
UP1B-220
UP1B-330
UP1B-470
UP1B-680
UP1B-101
UP1B-151
UP1B-221
UP1B-331
UP2B-R47
UP2B-1R0
UP2B-1R5
UP2B-2R2
UP2B-3R3
UP2B-4R7
UP2B-6R8
UP2B-100
UP2B-150
UP2B-220
UP2B-330
UP2B-470
UP2B-680
UP2B-820
UP2B-101
UP2B-151
UP2B-221
UP2B-331
UP2B-471
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
220.0
330.0
470.0
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
223
338
471
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
0.773
0.676
0.553
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
0.637
0.510
0.427
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
0.6717
0.8783
1.31
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-681
UP2B-821
UP2B-102
UP3B-R47
UP3B-1R0
UP3B-1R5
UP3B-2R2
UP3B-3R3
UP3B-4R7
UP3B-6R8
UP3B-100
UP3B-150
UP3B-220
UP3B-330
UP3B-470
UP3B-680
UP3B-101
UP3B-151
UP3B-331
UP4B-R47
UP4B-1R0
UP4B-1R5
UP4B-2R2
UP4B-3R3
UP4B-4R7
UP4B-6R8
UP4B-100
UP4B-150
UP4B-220
UP4B-330
UP4B-470
UP4B-680
UP4B-101
UP4B-151
UP4B-221
UP4B-331
UP4B-471
Inductance
µH (rated)
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%
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
0.452
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
0.355
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.
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.
Option Code
-R
OPTION CODE
Description
RoHS compliant version
®
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
Dimensions in Millimeters.
COMPONENT VIEW
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
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.
SECTION A-A
UP2B Series
1.5 Dia.
2.0
4.0
A
1
1.75
11.5
14.3
24
2
5.4
6.8
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.
SECTION A-A
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)
Mechanical Diagrams
UP1B-1R0
m
Henries or
m
Watt-Seconds
m
Henries or
m
Watt-Seconds
UP1B-100
100.0
Typical Inductance & Energy vs Saturation Current
Typical Inductance & Energy vs Saturation Current
100.0
Typical Inductance & Energy vs Saturation Current
yp
gy
10.0
10.0
1.0
1.0
0.1
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0.1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Amperes (Peak)
Inductance
Energy
Amperes (Peak)
Inductance
Energy
UP1B-470
Typical Inductance & Energy vs Saturation Current
m
Henries or
m
Watt-Seconds
100.0
UP2B-1R0
100.0
Typical Inductance & Energy vs Saturation Current
yp
gy
10.0
m
Henries or
m
Watt-Seconds
10.0
1.0
1.0
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.1
Amperes (Peak)
Inductance
Energy
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Amperes (Peak)
Inductance
Energy
UP2B-100
100.0
Typical Inductance & Energy vs
Saturation
Current
Typical Inductance & Energy vs
Saturation
Current
m
Henries or
m
Watt-Seconds
100.0
UP2B-470
Typical Inductance & Energy vs Saturation Current
yp
gy
m
Henries or
m
Watt-Seconds
10.0
10.0
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
1.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Amperes (Peak)
Inductance
Energy
Amperes (Peak)
Inductance
Energy
Microchip MCU
