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UNI-PAC? 2.8
Low Cost, Low Profile 2.8mm
Power Inductors (Surface Mount)
Description
? Miniature size and rugged construction
? Low DCR and high efficiency
? Suited for IR and vapor reflow solder
? Designed for high shock environments
? Frequency range 1kHz to 2MHz
? Ferrite core material
Applications
? DC-DC converters
? Filter inductors
? Signal conditioning
? Energy storage applications
? Computer, pager and battery powered equipment
RoHS
2002/95/EC
Environmental Data
? Storage temperature range: -40°C to +125°C
? Operating ambient temperature range: -40°C to +85°C
range is application specific. Temperature rise is
approximately 40°C at rated RMS current. Maximum
operating temperature is 125°C including ambient.
? Solder reflow temperature: +260°C max. for 10 seconds
max.
Packaging
? Supplied in tape and reel packaging, 1,750 per reel
Part
Number
Inductance
μH
OCL (1)
μH ± 20%
Irms (2)
Amperes
Isat (3)
Amperes
DCR (4)
Ohms
(Rated)
(Max.)
UP2.8B-1R0-R
UP2.8B-1R5-R
UP2.8B-2R2-R
UP2.8B-3R3-R
UP2.8B-4R7-R
UP2.8B-6R8-R
UP2.8B-100-R
UP2.8B-150-R
UP2.8B-220-R
UP2.8B-330-R
UP2.8B-470-R
UP2.8B-680-R
UP2.8B-101-R
UP2.8B-151-R
1.0
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
150
0.98
1.59
2.44
3.24
4.15
6.73
10
15
22
33
47
68
100
150
3.6
3.3
3.1
2.8
2.7
2.4
2.1
1.7
1.5
1.3
1.0
.89
.78
.62
8.0
6.4
5.2
4.5
3.9
3.2
2.7
2.2
1.7
1.5
1.2
1.0
.84
.74
.0286
.0349
.0356
.0474
.0478
.067
.080
.120
.190
.250
.340
.480
.622
.971
1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
2) RMS current, delta temp. of 40° C ambient temperature of 85° C
Mechanical Diagrams
TOP VIEW
2.63
3) Peak current for approximately 10% roll-off @ 20°C
4) Values @ 20° C
Recommended PCB Layout
2.92
FRONT VIEW
max
9.4
max
12.9
2.8
max
7.37
9.4
max
Dimensions in Millimeters.
wwllyy = date code R = (revision level)
xxx = Inductance value per family chart
max
2.79
Component View
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