PM-137
UNSHIELDED DRUM CORE (UP) UNI-PAC™
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
• Ferrite core material
Applications
• DC-DC converters on board level and industrial prod-
ucts
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.
Packaging
• Supplied in tape and reel packaging, 900 (UP1B), 550
(UP2B), 450 (UP3B), and 275 (UP4B) per reel
Part Inductance OCL(1) I RMS(2) I SAT(3) DCR(4)
Number μH (rated) μH±20% Amperes Amperes Ohms max.
UP1B-R47-R 0.47 0.569 6.0 7.7 0.0097
UP1B-1R0-R 1.0 1.20 4.4 5.3 0.0177
UP1B-1R5-R 1.5 1.61 4.2 4.5 0.0200
UP1B-2R2-R 2.2 2.62 3.1 3.5 0.0363
UP1B-3R3-R 3.3 3.79 2.9 3.0 0.0428
UP1B-4R7-R 4.7 5.15 2.2 2.6 0.0544
UP1B-6R8-R 6.8 6.87 1.7 2.2 0.0897
UP1B-100-R 10.0 11.00 1.5 1.9 0.1107
UP1B-150-R 15.0 16.00 1.2 1.5 0.1747
UP1B-220-R 22.0 23.50 1.0 1.2 0.2541
UP1B-330-R 33.0 36.00 0.82 0.99 0.3670
UP1B-470-R 47.0 48.50 0.72 0.87 0.4740
UP1B-680-R 68.0 73.52 0.58 0.67 0.7320
UP1B-101-R 100.0 112.67 0.47 0.53 1.11
UP1B-151-R 150.0 152.40 0.40 0.46 1.61
UP1B-221-R 220.0 223.10 0.36 0.38 1.96
UP1B-331-R 330.0 331.90 0.28 0.31 3.10
UP2B-R47-R 0.47 0.595 10.6 11.4 0.0049
UP2B-1R0-R 1.0 1.00 9.3 9.9 0.0065
UP2B-1R5-R 1.5 1.46 8.3 7.9 0.0081
UP2B-2R2-R 2.2 2.56 7.2 6.1 0.0107
UP2B-3R3-R 3.3 3.23 6.5 5.1 0.0128
UP2B-4R7-R 4.7 4.77 5.5 4.2 0.0165
UP2B-6R8-R 6.8 6.63 5.0 3.6 0.0202
UP2B-100-R 10.0 9.73 4.3 3.3 0.0267
UP2B-150-R 15.0 15.43 3.5 2.4 0.0410
UP2B-220-R 22.0 22.50 2.8 2.0 0.0617
UP2B-330-R 33.0 33.13 2.1 1.7 0.0917
UP2B-470-R 47.0 48.65 1.7 1.4 0.1388
UP2B-680-R 68.0 68.17 1.5 1.2 0.1787
UP2B-820-R 82.0 84.1 1.34 1.03 0.2235
UP2B-101-R 100.0 102.60 1.2 0.95 0.2707
UP2B-151-R 150.0 150 1.0 0.77 0.4100
Notes: (1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT 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)
NOW AVAILABLE WITH A
PROTECTIVE CASE
RoHS
2002/95/EC
PM-138
UNSHIELDED DRUM CORE (UP) UNI-PAC™
Part Inductance OCL(1) I RMS(2) I SAT(3) DCR(4)
Number μH (rated) μH±20% Amperes Amperes Ohms max.
UP2B-221-R 220.0 223 0.773 0.637 0.6717
UP2B-331-R 330.0 338 0.676 0.510 0.8783
UP2B-471-R 470.0 471 0.553 0.427 1.31
UP2B-681-R 680.0 700 0.452 0.355 1.97
UP2B-821-R 820.0 823 0.423 0.334 2.24
UP2B-102-R 1000.0 1005 0.369 0.300 2.96
UP3B-R47-R 0.47 0.452 16.0 25.1 0.0021
UP3B-1R0-R 1.0 1.34 12.5 15.3 0.0034
UP3B-1R5-R 1.5 2.08 10.0 12.0 0.0053
UP3B-2R2-R 2.2 3.01 9.2 10.2 0.0074
UP3B-3R3-R 3.3 3.96 8.0 9.3 0.0083
UP3B-4R7-R 4.7 5.00 6.5 7.7 0.0114
UP3B-6R8-R 6.8 7.70 5.8 6.2 0.0183
UP3B-100-R 10.0 11.00 4.3 5.2 0.0260
UP3B-150-R 15.0 16.38 3.9 4.3 0.0317
UP3B-220-R 22.0 23.93 3.1 3.7 0.0490
UP3B-330-R 33.0 33.85 2.4 3.0 0.0688
UP3B-470-R 47.0 51.00 1.9 2.4 0.1082
UP3B-680-R 68.0 69.50 1.6 2.0 0.1558
UP3B-101-R 100.0 101.40 1.4 1.8 0.2053
UP3B-151-R 150.0 152.9 1.2 1.4 0.2960
UP3B-331-R 330.0 332.80 0.75 0.98 0.7330
UP4B-R47-R 0.47 0.473 19.2 51.7 0.0019
UP4B-1R0-R 1.0 0.916 17.3 37.3 0.0023
UP4B-1R5-R 1.5 1.52 13.4 28.9 0.0039
UP4B-2R2-R 2.2 2.27 12.0 23.7 0.0048
UP4B-3R3-R 3.3 3.14 11.0 20.2 0.0057
UP4B-4R7-R 4.7 5.34 8.6 15.6 0.0093
UP4B-6R8-R 6.8 6.66 8.3 14.1 0.0100
UP4B-100-R 10.0 9.77 6.8 11.5 0.0150
UP4B-150-R 15.0 15.61 5.5 9.1 0.0230
UP4B-220-R 22.0 22.61 4.5 7.6 0.0340
UP4B-330-R 33.0 34.30 3.7 6.1 0.0520
UP4B-470-R 47.0 48.10 3.1 5.2 0.0740
UP4B-680-R 68.0 69.14 2.4 4.3 0.1200
UP4B-101-R 100.0 99.42 2.0 3.6 0.1700
UP4B-151-R 150.0 146.90 1.7 3.0 0.2392
UP4B-221-R 220.0 221.40 1.4 2.4 0.3571
UP4B-331-R 330.0 330.00 1.1 2.0 0.5800
UP4B-471-R 470.0 470.10 0.91 1.7 0.8330
Notes: (1) Open Circuit Inductance Test Parameters: 100KHz, .250Vrms, 0.0Adc.
(2) RMS current for an approximate ΔT 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)
PM-139
UNSHIELDED DRUM CORE (UP) UNI-PAC™
Mechanical Diagrams
UP1B Series
TOP VIEW
6.10
Max
8.89
Max
2.42
Ref 4.04
Max
0.762
Min
UP1B
XXX
wwllyy R
FRONT VIEW
5.0
Max
COMPONENT VIEW
PCB PAD LAYOUT
1.9
4.1
8.89
5.08 SCHEMATIC
1
2
UP2B Series
TOP VIEW
10.41
Max
13.97
Max
4.22
Ref 6.73
Max
0.762
Min
UP2B
XXX
wwllyy R
FRONT VIEW
6.0
Max
14.0
COMPONENT VIEW
PCB PAD LAYOUT
9.4
7.3
2.3
SCHEMATIC
1
2
UP3B Series
TOP VIEW
12.70
19.30
max
13.21
max
12
8.13
max
UP3B
XXX
wwllyy R
6.8
max
SIDE VIEW
19.3
COMPONENT VIEW
PCB PAD LAYOUT
11.7
8.7
3.8
SCHEMATIC
1
2
UP4B Series
22.10
max
TOP VIEW
15.00
max
14.61
12
11.18
max
UP4B
XXX
wwllyy R
SIDE VIEW
7.87
max
22.1
COMPONENT VIEW
PCB PAD LAYOUT
13.5
12.0
4.3
SCHEMATIC
1
2
Dimensions in Millimeters. wwllyy = (date code) R = revision level
xxx = Inductance value per family chart
UNI-PAC™
Power Inductors
(Surface Mount)
PM-140
UNSHIELDED DRUM CORE (UP) UNI-PAC™
14.3
10.7
5.1
1.5 Dia.
16.0
6.8
5.4
SECTION A-A
A
A1.75
24
11.5
2.0
4.0
Direction of feed
Dimensions in millimeters.
1
2
UP2B Series
ACTUAL SIZE
UNI-PAC 2B
13.5
5.8
4.0
2.0
16.0
1.75
14.2
1
2
1.5 Dia.
7.7
SECTION A-A
A
A
28.4
Direction of feed
Dimensions in millimeters.
19.6
5.9
32
UP3B Series
15.3
11.1
4.0
2.0
24.0
1.75
14.2
1.5 Dia.
9.0
SECTION A-A
A
A
28.4
Direction of feed
Dimensions in millimeters.
22.3
7.2
32
1
2
UP4B Series
ACTUAL SIZE
UNI-PAC 3B
ACTUAL SIZE
UNI-PAC 4B
Packaging Information
6.4
2.3
4.0
2.0
12.0
1.75
16
7.5
1.5 Dia.
5.6
4.4
SECTION A-A
9.3
A
A
Direction of feed
Dimensions in millimeters.
1
2
UP1B Series
ACTUAL SIZE
UNI-PAC 1B
UNI-PAC™
Power Inductors
(Surface Mount)
Parts packaged on 13" Diameter reel,
900 parts per reel.
Parts packaged on 13" Diameter reel,
550 parts per reel.
Parts packaged on 13" Diameter reel,
450 parts per reel.
Parts packaged on 13" Diameter reel,
275 parts per reel.
PM-141
UNSHIELDED DRUM CORE (UP) UNI-PAC™
Inductance Characteristics
UP1B-470
Typical Inductance & Energy vs Saturation Current
UP1B-100
Typical Inductance & Energy vs Saturation Current
UP1B-1R0
Typical Inductance & Energy vs Saturation Current
UP2B-470
Typical Inductance & Energy vs Saturation Current
UP2B-100
Typical Inductance & Energy vs Saturation Current
UP2B-1R0
Typical Inductance & Energy vs Saturation Current
UNI-PAC™
Power Inductors
(Surface Mount)
PM-142
UNSHIELDED DRUM CORE (UP) UNI-PAC™
Inductance Characteristics
UP3B-470
Typical Inductance & Energy vs Saturation Current
UP3B-100
Typical Inductance & Energy vs Saturation Current
UP3B-1R0
Typical Inductance & Energy vs Saturation Current
UP4B-100
Typical Inductance & Energy vs Saturation Current
UP4B-470
Typical Inductance & Energy vs Saturation Current
UP4B-1R0
Typical Inductance & Energy vs Saturation Current
UNI-PAC™
Power Inductors
(Surface Mount)
