SRR4028-270Y Bourns Inc., SRR4028-270Y Datasheet
SRR4028-270Y
Manufacturer Part Number
SRR4028-270Y
Description
INDUCTOR POWER 27UH 0.89A 4028
Manufacturer
Bourns Inc.
Series
SRR4028r
Type
Ferrite Corer
Datasheet
1.SRR4028-101Y.pdf
(2 pages)
Specifications of SRR4028-270Y
Inductance
27µH
Tolerance
±30%
Current
890mA
Current - Saturation
600mA
Shielding
Shielded
Dc Resistance (dcr)
200 mOhm Max
Q @ Freq
10.76 @ 2.52MHz
Self Resonant Freq
18MHz
Package / Case
0.189" L x 0.189" W x 0.110" H (4.80mm x 4.80mm x 2.80mm)
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Frequency - Test
100kHz
Material - Core
Ferrite
Applications
Power Supplies
Product
Inductors
Test Frequency
2.52 MHz
Maximum Dc Current
0.89 Amp
Maximum Dc Resistance
200 mOhms
Self Resonant Frequency
18 MHz
Q Minimum
10.76
Dimensions
4.8 mm W x 4.8 mm L x 1.6 mm H
Operating Temperature Range
- 40 C to + 125 C
Termination Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Temperature Rise
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
SRR4028-270Y
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SRR4028-270Y
Manufacturer:
BOURNS
Quantity:
60 000
Bourns Part No.
SRR4028-1R2Y
SRR4028-1R8Y
SRR4028-2R2Y
SRR4028-2R7Y
SRR4028-3R3Y
SRR4028-3R9Y
SRR4028-4R7Y
SRR4028-5R6Y
SRR4028-6R8Y
SRR4028-8R2Y
SRR4028-100Y
SRR4028-120Y
SRR4028-150Y
SRR4028-180Y
SRR4028-220Y
SRR4028-270Y
SRR4028-330Y
SRR4028-390Y
SRR4028-470Y
SRR4028-560Y
SRR4028-680Y
SRR4028-820Y
SRR4028-101Y
SRR4028-121Y
SRR4028-151Y
SRR4028-181Y
SRR4028-221Y
SRR4028-271Y
SRR4028-331Y
SRR4028-391Y
SRR4028-471Y
SRR4028-561Y
Electrical Specifications
Soldering Profile
275
225
175
125
75
25
0
150°C
<1> Maximum of 10 seconds between
+255°C and +260°C
Inductance 100 kHz
(µ µ H)
100
120
150
180
220
270
330
390
470
560
1.2
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
50
Ramp Up
3°C/second maximum
120 - 150 seconds
Tol. %
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
100
9.624
11.26
11.26
11.64
10.76
10.88
13.32
11.72
13.86
17.46
16.48
13.18
13.26
16.46
9.34
9.18
9.24
8.64
7.72
8.58
8.12
9.56
8.24
9.66
8.26
9.74
8.42
8.78
11.3
Ref.
9.7
8.6
190°C
Q
9
Time (seconds)
Frequency
<1> 255°C
220°C
Features
SRR4028 Series - Shielded SMD Power Inductors
150
(MHz)
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
10 seconds minimum
Height of 3.0 mm max.
Current rating up to 3.1 A
RoHS compliant*
Test
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
seconds
60 - 90
(MHz)
SRF
Typ.
176
146
111
92
76
56
55
69
77
45
34
25
27
25
23
18
16
14
13
13
11
8
9
8
6
7
5
5
5
4
3
3
200
260°C peak
Max.
(mΩ Ω )
1000
1250
1500
1700
2200
2600
3000
DCR
100
110
125
150
160
185
200
230
250
280
320
400
520
600
700
860
20
25
28
30
35
60
70
85
90
250
Ramp Down
6°C/second
Irms
3.10
2.70
2.50
2.35
2.15
1.72
1.55
1.38
1.30
1.25
1.19
1.12
1.03
0.98
0.93
0.89
0.82
0.80
0.75
0.70
0.63
0.56
0.51
0.47
0.42
0.39
0.34
0.32
0.30
0.26
0.24
0.22
maximum
(A)
Customers should verify actual device performance in their specific applications.
Rev. 02/22/05
2.560
2.200
2.050
1.800
1.650
1.500
1.300
1.200
1.150
1.050
1.000
0.850
0.780
0.750
0.720
0.600
0.580
0.500
0.480
0.410
0.360
0.320
0.300
0.280
0.260
0.230
0.200
0.180
0.170
0.160
0.155
0.150
Isat
(A)
300
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Applications
Test Voltage .....................0.1 V, 100 KHz
Reflow Soldering .....230 ˚C; 50 sec max.
Operating Temperature ..-40 °C to +125 °C
Storage Temperature..-40 °C to +125 °C
Resistance to Soldering Heat
Core Material.................................Ferrite
Wire ............................Enameled Copper
Adhesive..............................Epoxy Resin
Terminal.....................................Ag/Ni/Sn
Rated Current .........Ind. drop of 35 % typ.
Temperature Rise .............30 ˚C typ. at Irms
Packaging.....................500 pcs. per reel
General Specifications
Materials
Product Dimensions
Recommended Layout
Input/output of DC/DC converters
Power supplies for:
•
•
•
•
................................260 °C for 10 sec.
DIMENSIONS:
Specifications are subject to change without notice.
Portable communication equipment
Camcorders
LCD TVs
Car radios
R
(.071)
1.80
(Temperature rise included)
REF.
(.189 ± .008)
(.209)
(INCHES)
4.80 ± 0.20
5.30
6R8
MM
REF.
(.189 ± .008)
4.80 ± 0.20
(.110 ± .008)
2.80 ± 0.20
(.063)
(.063)
1.60
1.60
TYP.
TYP.
(.079)
(.079)
2.00
2.00
REF.
(.063)
REF.
1.60
TYP.
at Isat
(.059)
1.50
REF.
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SRR4028-270Y Summary of contents
Page 1
... SRR4028-6R8Y 6.8 ±30 9.624 SRR4028-8R2Y 8.2 ±30 SRR4028-100Y 10 ±30 11.26 SRR4028-120Y 12 ±30 11.26 SRR4028-150Y 15 ±30 SRR4028-180Y 18 ±30 11.64 SRR4028-220Y 22 ±30 SRR4028-270Y 27 ±30 10.76 SRR4028-330Y 33 ±30 SRR4028-390Y 39 ±30 SRR4028-470Y 47 ±30 10.88 SRR4028-560Y 56 ±30 SRR4028-680Y 68 ±30 SRR4028-820Y 82 ±30 SRR4028-101Y 100 ±30 SRR4028-121Y 120 ± ...
Page 2
... SRR4028 Series - Shielded SMD Power Inductors Surface Mount Chip Inductor Capability Matrix Inductance vs. Current 7 5 561 151 330 100 7 5 4R7 1R2 Packaging Specifications (.079 ± .020) 178.0 (7.00) DIA. 21.0 ± 0.8 (.827 ± .032) 13.0 DIA. (.511) END NO COMPONENT 200 (7 ...