M
PL
IA
N
Features
■
Shielded construction
■
Flat wire
■
Unit height of 2 mm
*R
oH
S
This series is currently available but
not recommended for new designs.
The newer
Model SRP4020TA
series is recommended.
CO
T
R6
8
■
Inductance range: 0.22 to 5.6
μH
■
Rated current up to 10 A
■
RoHS compliant*
SRP4020 Series - Shielded Power Inductors
Electrical Specifications
Bourns Part No.
SRP4020-R22M
SRP4020-R36M
SRP4020-R47M
SRP4020-R56M
SRP4020-R68M
SRP4020-R88M
SRP4020-1R0M
SRP4020-1R2M
SRP4020-1R5M
SRP4020-2R2M
SRP4020-3R3M
SRP4020-4R7M
SRP4020-5R6M
Inductance
L (μH) ±20 %
0.22
0.36
0.47
0.56
0.68
0.88
1.0
1.2
1.5
2.2
3.3
4.7
5.6
I rms
(A)
11.5
9
7
7
6.3
6
5
5
5.1
3.9
3.3
2.7
2.4
I sat
(A)
11.5
11
10
8
7
6.5
6
5
5
5
4.3
4
3.5
DCR
(mΩ) Max.
7
12
12
14.7
17
18
21.6
22
29
40
48
75
90
General Specifications
Test Voltage ..................................0.25 V
Test Frequency ......................... 100 KHz
Reflow Soldering .. 230 °C; 50 sec. max.
Operating Temperature
................................-55 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-55 °C to +125 °C
Resistance to Soldering Heat
............................. +260 °C for 10 sec.
Materials
Core ..................................................Iron
Wire ............................Enameled copper
Terminal ........................................Cu/Sn
Rated Current .....Ind. drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Packaging ..... 2000 pcs. per 13-inch reel
Soldering Profile
275
225
175
150 °C
125
75
25
0
50
100
150
200
250
300
120-150 seconds
10 seconds minimum
Ramp Up
4 °C/second maximum
<1> Maximum of 10 seconds
between +255 °C and +260 °C
260 °C peak
<1> 255 °C
220 °C
190°C
60 seconds
maximum
Ramp Down
5 °C/second
Product Dimensions
4.8
MAX.
(.189)
Temperature (°C)
4.0 ± 0.2
(.157 ± .008)
4.0 ± 0.2
(.157 ± .008)
Time (Seconds)
0.0 - 0.3
(0.0 - .012)
Electrical Schematic
Recommended Layout
2.2
(.087)
1.5
(.059)
2.0
MAX.
(.079)
6.0
(.236)
0.6 ± 0.3
(.024 ± .012)
0.8 ± 0.3
(.031 ± .012)
DIMENSIONS:
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
MM
(INCHES)
Applications
■
DC/DC converters
■
Power supplies for:
• Portable communications equipment
• Laptop computers
• Camcorders, HDTV, car audio
systems
• Video game consoles
SRP4020 Series - Shielded Power Inductors
L vs. I Charts
0.24
0.23
0.22
SRP4020-R22M
100
Temperature Rise (°C)
Inductance (μH)
0.21
0.20
0.19
0.18
0.17
0.16
0.15
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
70
60
50
40
30
20
10
0
0.32
0.31
0.30
0.29
0.28
0.27
0.26
0.25
0
1
2
3
4
5
6
7
8
9
10
10
0
20
30
DC Bias (A)
0.50
0.45
DC Bias (A)
60
50
40
0.60
SRP4020-R47M
SRP4020-R56M
80
Temperature Rise (°C)
Inductance (μH)
Inductance (μH)
60
0.50
0.45
0.40
0.35
0.30
0
1
2
3
4
5
6
7
8
9
50
40
30
20
10
0
10
0.40
30
0.35
20
0.30
0.25
0
1
2
3
4
5
6
7
8
9
10
10
0
DC Bias (A)
0.80
0.70
DC Bias (A)
50
0.90
0.85
SRP4020-R68M
SRP4020-R88M
45
40
35
30
25
Temperature Rise (°C)
0.80
0.60
0.50
0.40
0.30
0
0.5
1
1.5
2
2.5 3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
30
20
10
0
0.75
0.70
20
0.65
0.60
0.55
0.50
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
15
10
5
0
DC Bias (A)
DC Bias (A)
80
70
60
1.20
SRP4020-1R0M
1.10
1.00
SRP4020-1R2M
60
50
40
Temperature Rise (°C)
1.10
1.00
Inductance (μH)
0.90
0.80
0.70
0.60
0.50
0
1
2
3
4
5
6
7
8
Inductance (μH)
50
40
30
20
10
0
0.90
30
0.80
0.70
0.60
0.50
0
1
2
3
4
5
6
7
8
20
10
0
DC Bias (A)
DC Bias (A)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Temperature Rise (°C)
Temperature Rise (°C)
40
Inductance (μH)
Inductance (μH)
Temperature Rise (°C)
0.55
70
Temperature Rise (°C)
Inductance (μH)
90
80
0.35
0.34
0.33
SRP4020-R36M
50
40
3312 - 2 mm SMD Shielded Power Inductors
SRP4020 Series - Trimming Potentiometer
L vs. I Charts
2.00
1.70
SRP4020-1R5M
Temperature Rise (°C)
Inductance (μH)
2.20
1.40
1.10
0.80
0.50
0
1
2
3
4
5
6
7
Inductance (μH)
40
30
20
10
0
0
1
2
3
4
5
6
60
50
40
30
20
10
0
2.10
2.00
1.90
1.80
1.70
1.60
1.50
DC Bias (A)
DC Bias (A)
SRP4020-3R3M
2.50
2.30
30
2.20
60
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
0
0.5
1
1.5
SRP4020-4R7M
100
90
80
70
60
50
40
30
20
10
0
2
2.5
3
3.5
4
4.5
5
Temperature Rise (°C)
Temperature Rise (°C)
110
100
90
80
70
SRP4020-2R2M
2.50
2.40
2.30
50
60
Inductance (μH)
2.00
1.90
1.80
1.70
1.60
1.50
0
0.5
1
1.5
2
2.5
3
3.5
4
0
10
20
Inductance (μH)
2.10
Temperature Rise (°C)
DC Bias (A)
DC Bias (A)
SRP4020-5R6M
5.6
5.4
100
90
70
60
50
4.8
4.6
4.4
4.2
0
0.5
1
1.5
2
2.5
3
3.5
4
40
30
20
10
0
Inductance (μH)
5.2
5.0
DC Bias (A)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Temperature Rise (°C)
80
SRP4020 Series - Shielded Power Inductors
Packaging Specifications
330.0
(13.00)
DIA.
2.0
±
0.5
(.079
±
.020)
13.5
±
0.5
(0.53
±
.020)
DIA.
100.0 ± 1.0
(3.937 ± .039)
13.5
±
0.5
DIA.
(.53
±
.020)
THICKNESS
0.10
(.004)
MAX.
EMBOSSED
CAVITY
EMBOSSED
CARRIER
12.5 ± 0.5
(.492 ± .020)
1.50 ± 0.1
(.059 ± .004)
0.3 ± 0.1
(.012 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.1
(.079 ± .004)
1.75 ± 0.1
(.069 ± .004)
5.5 ± 0.1
(.217 ± .004)
2R2
5.0 ± 0.1
(.197 ± .004)
12.0 ± 0.3
(.472 ± .012)
2.5 ± 0.15
(.098 ± .006)
4.2 ± 0.1
(.165 ± .004)
8.0 ± 0.1
(.315 ± .004)
USER DIRECTION OF FEED
DIMENSIONS:
MM
(INCHES)
QTY: 2000 PCS. PER REEL
REV. 03/15
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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