Features
n Shielded construction
n Carbonyl powder core
n High saturation current
n Inductance range: 0.20 to 22 µH
n AEC-Q200 compliant
n RoHS compliant* and halogen free**
SRP1245A Series - Shielded Power Inductors
Test Voltage ....................................1.0 V
Test Frequency ......................... 100 KHz
Operating Temperature
................................-55 °C to +150 °C
(Temperature rise included)
Storage Temperature .. -55 °C to +125 °C
Rated Current
............ Inductance drops 20 % at Isat
Temperature Rise .....40 °C at rated Irms
Resistance to Soldering Heat
........................ +260 °C, 40 sec. max.
Moisture Sensitivity Level ..................... 1
ESD Classication (HBM).................N/A
1 Circuit design, component, PCB trace
size and thickness, airow and other
cooling provisions all affect the part
temperature. Part temperature should be
veried in the end application.
Electrical Specications @ 25 °C General Specications
Core ............................. Carbonyl powder
Wire ............................Enameled copper
Terminal Finish ...................................Sn
Packaging ....... 500 pcs. per 13-inch reel
Materials
Recommended Layout
* RoHS Directive 2002/95/EC Jan. 27, 2003 including
annex and RoHS Recast 2011/65/EU June 8, 2011.
**Bourns considers a product to be “halogen free” if
(a) the Bromine (Br) content is 900 ppm or less; (b)
the Chlorine (Cl) content is 900 ppm or less; and (c)
the total Bromine (Br) and Chlorine (Cl) content is
1500 ppm or less.
Specifications are subject to change without notice.
Users should verify actual device performance in their
specific applications.
The products described herein and this document are
subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/
docs/legal/disclaimer.pdf.
Bourns
Part Number
Inductance
@ 100 KHz
/ 1 V Q (Min.)
@100 KHz
/ 1 V
SRF
(MHz)
Typ.
DCR
(mW)
Typ.
DCR
(mW)
Max.
Irms
(A)
Isat
(A)
Terminal
Type
L
(µH)
Tol.
(%)
SRP1245A-R20M 0.20 20 10 130 0.45 0.55 52 110
Non-
Lead
Frame
SRP1245A-R22M 0.22 20 10 120 0.5 0.7 52 110
SRP1245A-R33M 0.33 20 15 90 0.7 0.9 42 80
SRP1245A-R36M 0.36 20 15 80 0.75 0.95 42 75
SRP1245A-R39M 0.39 20 15 78 0.78 0.95 42 70
SRP1245A-R47M 0.47 20 20 70 0.86 1.1 38 65
SRP1245A-R50M 0.50 20 20 65 0.9 1.3 37 60
SRP1245A-R56M 0.56 20 20 60 1 1.5 36 55
SRP1245A-R68M 0.68 20 20 50 1.4 1.7 34 54
SRP1245A-R82M 0.82 20 20 45 1.7 2.1 31 52
Lead
Frame
SRP1245A-1R0M 1.0 20 20 40 1.85 2.5 29 50
SRP1245A-1R2M 1.2 20 20 35 2.5 3.0 28 49
SRP1245A-1R5M 1.5 20 20 30 2.8 3.3 27 48
SRP1245A-1R8M 1.8 20 20 27 4 4.9 21 40
SRP1245A-2R2M 2.2 20 20 24 4.2 5.5 20 32
SRP1245A-2R7M 2.7 20 20 23 4.7 6.7 17 32
SRP1245A-3R3M 3.3 20 20 22 6.8 9.2 15 32
SRP1245A-4R7M 4.7 20 20 15 11.4 15.0 12 27
SRP1245A-5R6M 5.6 20 20 13 12.3 16.5 11.5 22
SRP1245A-6R0M 6.0 20 20 12 13 16.5 11.5 21.5
SRP1245A-6R8M 6.8 20 20 12 14.5 18.5 11 21
SRP1245A-8R2M 8.2 20 20 11 16.8 22.5 9.5 18
SRP1245A-100M 10 20 20 10 21.4 25.5 9 16
SRP1245A-180M 18 20 20 7 40 45.0 7.5 11
SRP1245A-220M 22 20 20 6 50 58 6.5 10
R47
1 3 1 8
Please consult Bourns® Model SRP-A
Series Visual Inspection Guide for detailed
construction, processing and testing
information.
Product Dimensions
Non-Lead Frame Terminal Lead Frame Terminal
14.2
(.559)
13.5 ± 0.5
(.531 ± .020)
8.0
(.315)
5.0
(.197)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
3R3
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
13.5 ± 0.5
(.531 ± .020)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
R20
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
14.2
(.559)
13.5 ± 0.5
(.531 ± .020)
8.0
(.315)
5.0
(.197)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
3R3
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
13.5 ± 0.5
(.531 ± .020)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
R20
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
DIMENSIONS: MM
(INCHES)
14.2
(.559)
13.5 ± 0.5
(.531 ± .020)
8.0
(.315)
5.0
(.197)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
3R3
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
13.5 ± 0.5
(.531 ± .020)
4.8 ± 0.2
(.189 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
R20
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
How to Order
SRP1245A - 100M
Model
Value Code (see table)
*RoHS and
AEC-Q200 COMPLIANT
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
SRF0504 Series - Line Filter
SRP1245A Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
L vs. I Charts
0
01133
22 44 55
0.2
0.4
0.8
1.0
0
Inductance (μH)
DC Current (A)
SRP1245A-R56M
Temperature Rise (°C)
20
80
0.6 60
40
100
0
09 36
18 27 45 54
0.3
0.6
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1245A-R68M
Temperature Rise (°C)
30
120
0.9 90
60
150
0
01530 45 60 75
0.15
0.30
0.45
0.60
0
Inductance (μH)
DC Current (A)
SRP1245A-R36M
Temperature Rise (°C)
30
120
90
60
150
0
01326 39 52 65
0.2
0.4
0.6
0.8
0
Inductance (μH)
DC Current (A)
SRP1245A-R50M
Temperature Rise (°C)
22
88
66
44
110
0
01030
20 40 50
0.4
0.8
1.6
2.0
0
Inductance (μH)
DC Current (A)
SRP1245A-1R0M
Temperature Rise (°C)
30
120
1.2 90
60
150
0
09.8 29.4 39.219.
64
9
0.3
0.6
0.9
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1245A-1R2M
Temperature Rise (°C)
30
40
20
10
50
0
0612 24 3018 36 42
0.6
1.2
2.4
3.0
0
Inductance (μH)
DC Current (A)
SRP1245A-1R5M
Temperature Rise (°C)
90
1.8
60
30
120
0
020 40 60 80
0.2
0.6
0.8
0
Inductance (μH)
DC Current (A)
SRP1245A-R33M
Temperature Rise (°C)
90
120
0.4
60
30
150
0
013 26 39 52 65
0.2
0.4
0.8
1.0
0
Inductance (μH)
DC Current (A)
SRP1245A-R47M
Temperature Rise (°C)
90
0.6
60
30
120
0
013 26 39 52 65
0.14
0.28
0.56
0.7
0
Inductance (μH)
DC Current (A)
SRP1245A-R39M
Temperature Rise (°C)
80
0.42 60
40
20
100
0
0816 24 32
1
2
4
5
0
Inductance (μH)
DC Current (A)
SRP1245A-3R3M
Temperature Rise (°C)
120
90
3
60
30
150
0
04.3 8.6 12.9 17.2 21.5
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-6R0M
Temperature Rise (°C)
96
72
6
48
24
120
0
05.25 10.5 15.75 21
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-6R8M
Temperature Rise (°C)
80
60
6
40
20
100
0
02.2 4.4 6.6 8.811
5
0
20
25
0
Inductance (μH)
DC Current (A)
SRP1245A-180M
Temperature Rise (°C)
36
27
15
18
9
45
0
01020 30 40
1
3
4
0
Inductance (μH)
DC Current (A)
SRP1245A-1R8M
Temperature Rise (°C)
30
120
2
90
60
150
0
04.5 9 13.518
2
4
10
8
12
0
Inductance (μH)
DC Current (A)
SRP1245A-8R2M
Temperature Rise (°C)
20
80
6
60
40
100
0
0481216
3
6
15
12
18
0
Inductance (μH)
DC Current (A)
SRP1245A-100M
Temperature Rise (°C)
20
80
9
60
40
100
0
08
16 24 32
1
3
4
0
Inductance (μH)
DC Current (A)
SRP1245A-2R2M
Temperature Rise (°C)
30
90
260
120
0
05.4 10.8 16.2 21.627
2
6
8
0
Inductance (μH)
DC Current (A)
SRP1245A-4R7M
Temperature Rise (°C)
30
120
4
90
60
150
0
04.4 13.2
8.8 17.622
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-5R6M
Temperature Rise (°C)
30
120
690
60
150
0
022 44 66 88 110
0.07
0.28
0.35
0
Inductance (μH)
DC Current (A)
SRP1245A-R20M
Temperature Rise (°C)
90
120
0.14
0.21
60
30
150
0
02266
44 88 110
0.08
0.16
0.32
0.4
0
Inductance (μH)
DC Current (A)
SRP1245A-R22M
Temperature Rise (°C)
30
120
0.24 90
60
150
0
010.4 20.8 31.2 41.652
0.24
0.96
1.20
0
Inductance (μH)
DC Current (A)
SRP1245A-R82M
Temperature Rise (°C)
72
96
0.48
0.72
48
24
120
0
0246810
7
14
28
35
0
Inductance (μH)
DC Current (A)
SRP1245A-220M
Temperature Rise (°C)
60
45
21
30
15
75
0
01030
20 40
0.9
1.8
3.6
4.5
0
Inductance (μH)
DC Current (A)
SRP1245A-2R7M
Temperature Rise (°C)
16
64
2.7 48
32
80
SRP1245A Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
L vs. I Charts
0
0113322 44 55
0.2
0.4
0.8
1.0
0
Inductance (μH)
DC Current (A)
SRP1245A-R56M
Temperature Rise (°C)
20
80
0.6 60
40
100
0
09 36
18 27 45 54
0.3
0.6
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1245A-R68M
Temperature Rise (°C)
30
120
0.9 90
60
150
0
01530 45 60 75
0.15
0.30
0.45
0.60
0
Inductance (μH)
DC Current (A)
SRP1245A-R36M
Temperature Rise (°C)
30
120
90
60
150
0
01326 39 52 65
0.2
0.4
0.6
0.8
0
Inductance (μH)
DC Current (A)
SRP1245A-R50M
Temperature Rise (°C)
22
88
66
44
110
0
01030
20 40 50
0.4
0.8
1.6
2.0
0
Inductance (μH)
DC Current (A)
SRP1245A-1R0M
Temperature Rise (°C)
30
120
1.2 90
60
150
0
09.8 29.4 39.219.649
0.3
0.6
0.9
1.2
1.5
0
Inductance (μH)
DC Current (A)
SRP1245A-1R2M
Temperature Rise (°C)
30
40
20
10
50
0
0612 24 3018 36 42
0.6
1.2
2.4
3.0
0
Inductance (μH)
DC Current (A)
SRP1245A-1R5M
Temperature Rise (°C)
90
1.8
60
30
120
0
020 40 60 80
0.2
0.6
0.8
0
Inductance (μH)
DC Current (A)
SRP1245A-R33M
Temperature Rise (°C)
90
120
0.4
60
30
150
0
013 26 39 52 65
0.2
0.4
0.8
1.0
0
Inductance (μH)
DC Current (A)
SRP1245A-R47M
Temperature Rise (°C)
90
0.6
60
30
120
0
013 26 39 52 65
0.14
0.28
0.56
0.7
0
Inductance (μH)
DC Current (A)
SRP1245A-R39M
Temperature Rise (°C)
80
0.42 60
40
20
100
0
0816 24 32
1
2
4
5
0
Inductance (μH)
DC Current (A)
SRP1245A-3R3M
Temperature Rise (°C)
120
90
3
60
30
150
0
04.3 8.6 12.9 17.2 21.5
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-6R0M
Temperature Rise (°C)
96
72
6
48
24
120
0
05.25 10.5 15.75 21
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-6R8M
Temperature Rise (°C)
80
60
6
40
20
100
0
02.2 4.4 6.6 8.811
5
0
20
25
0
Inductance (μH)
DC Current (A)
SRP1245A-180M
Temperature Rise (°C)
36
27
15
18
9
45
0
01020 30 40
1
3
4
0
Inductance (μH)
DC Current (A)
SRP1245A-1R8M
Temperature Rise (°C)
30
120
2
90
60
150
0
04.5 9 13.518
2
4
10
8
12
0
Inductance (μH)
DC Current (A)
SRP1245A-8R2M
Temperature Rise (°C)
20
80
6
60
40
100
0
0481216
3
6
15
12
18
0
Inductance (μH)
DC Current (A)
SRP1245A-100M
Temperature Rise (°C)
20
80
9
60
40
100
0
08
16 24 32
1
3
4
0
Inductance (μH)
DC Current (A)
SRP1245A-2R2M
Temperature Rise (°C)
30
90
260
120
0
05.4 10.8 16.2 21.627
2
6
8
0
Inductance (μH)
DC Current (A)
SRP1245A-4R7M
Temperature Rise (°C)
30
120
4
90
60
150
0
04.4 13.2
8.8 17.622
2
4
8
10
0
Inductance (μH)
DC Current (A)
SRP1245A-5R6M
Temperature Rise (°C)
30
120
690
60
150
0
022 44 66 88 110
0.07
0.28
0.35
0
Inductance (μH)
DC Current (A)
SRP1245A-R20M
Temperature Rise (°C)
90
120
0.14
0.21
60
30
150
0
02266
44 88 110
0.08
0.16
0.32
0.4
0
Inductance (μH)
DC Current (A)
SRP1245A-R22M
Temperature Rise (°C)
30
120
0.24 90
60
150
0
010.4 20.8 31.2 41.652
0.24
0.96
1.20
0
Inductance (μH)
DC Current (A)
SRP1245A-R82M
Temperature Rise (°C)
72
96
0.48
0.72
48
24
120
0
0246810
7
14
28
35
0
Inductance (μH)
DC Current (A)
SRP1245A-220M
Temperature Rise (°C)
60
45
21
30
15
75
0
01030
20 40
0.9
1.8
3.6
4.5
0
Inductance (μH)
DC Current (A)
SRP1245A-2R7M
Temperature Rise (°C)
16
64
2.7 48
32
80
SRF0504 Series - Line Filter
SRP1245A Series - Shielded Power Inductors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
USER DIRECTION OF FEED
Marking
Date Code
Marking
Date Code
Marking
Date Code
Marking
Date Code
Marking
Date Code
3 °
4.0
(.157)
1.75
(.069) 2.0
(.079) DIA.
1.5 ± 0.1
(.059 ± .004)
11.5 ± 0.1
(.453 ± .004)
24.0 ± 0.3
(.945 ± .012)
7.0 ± 0.1
(.276 ± .004)
13.0 ± 0.1
(.512 ± .004)
16.0 ± 0.1
(.630 ± .004)
24.0 ± 0.5
(.945 ± .020)
2.0 ± 0.5
(.079 ± .020)
100.0 ± 2.0
(3.937 ± .079)
330
(12.99)DIA.
13.5 ± 0.5
(.531 ± .020)DIA.
13.5 ± 0.5
(.531 ± .020)
DIA.
24
(.945)
0.35 ± 0.05
(.014 ± .002)
5.5 ± 0.1
(.217 ± .004)
13.0 ± 0.1
(.512 ± .004)
14.2 ± 0.1
(.559 ± .004)
Packaging Specications
DIMENSIONS: MM
(INCHES)
QTY: 500 PCS. PER REEL
REV. 05/19
Soldering Prole
25
Time (Seconds)
REFLOW TIMES: 3 MAX.
Temperature (°C)
150
200
217
tp (245 °C / 20~40 seconds)
TP (260 °C / 10 seconds max.)
PRE-HEATING SOLDERING
NATURAL
COOLING
60 ~ 150 seconds
60 ~ 180 seconds
480 seconds max.
Electrical Schematic
14.2
(.559)
13.5 ± 0.5
(.531 ± .020)
8.0
(.315)
5.0
(.197)
3.3 ± 0.2
(.130 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
3R3
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
13.5 ± 0.5
(.531 ± .020)
3.3 ± 0.2
(.130 + .008)
12.5 ± 0.3
(.492 ± .012)
4.7 ± 0.3
(.185 ± .012)
R15
1510
2.3 ± 0.3
(.091 ± .012)
2.75 ± 0.35
(.108 ± .014)
GRADUATED
LINE
2.0
(.079)
REF.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and its
afliates (collectively, “Bourns”).
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
without notice. Users should check for and obtain the latest relevant information and verify that such information is current and
complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns® product in a user application may vary
from the data sheet characteristics and parameters due to (i) the combination of the Bourns® product with other components
in the user’s application, or (ii) the environment of the user application itself. The characteristics and parameters of a Bourns®
product also can and do vary in different applications and actual performance may vary over time. Users should always verify
the actual performance of the Bourns® product in their specic devices and applications, and make their own independent
judgments regarding the amount of additional test margin to design into their device or application to compensate for
differences between laboratory and real world conditions.
Unless Bourns has explicitly designated an individual Bourns® product as meeting the requirements of a particular industry
standard (e.g., ISO/TS 16949) or a particular qualication (e.g., UL listed or recognized), Bourns is not responsible for any
failure of an individual Bourns® product to meet the requirements of such industry standard or particular qualication. Users of
Bourns® products are responsible for ensuring compliance with safety-related requirements and standards applicable to their
devices or applications.
Bourns® products are not recommended, authorized or intended for use in nuclear, lifesaving, life-critical or life-sustaining ap-
plications, nor in any other applications where failure or malfunction may result in personal injury, death, or severe property or
environmental damage. Unless expressly and specically approved in writing by two authorized Bourns representatives on a
case-by-case basis, use of any Bourns® products in such unauthorized applications might not be safe and thus is at the user’s
sole risk. Life-critical applications include devices identied by the U.S. Food and Drug Administration as Class III devices and
generally equivalent classications outside of the United States.
Bourns expressly identies those Bourns® standard products that are suitable for use in automotive applications on such
products’ data sheets in the section entitled “Applications.” Unless expressly and specically approved in writing by two
authorized Bourns representatives on a case-by-case basis, use of any other Bourns® standard products in an automotive
application might not be safe and thus is not recommended, authorized or intended and is at the user’s sole risk. If Bourns
expressly identies a sub-category of automotive application in the data sheet for its standard products (such as infotainment
or lighting), such identication means that Bourns has reviewed its standard product and has determined that if such Bourns®
standard product is considered for potential use in automotive applications, it should only be used in such sub-category of
automotive applications. Any reference to Bourns® standard product in the data sheet as compliant with the AEC-Q standard
or “automotive grade” does not by itself mean that Bourns has approved such product for use in an automotive application.
Bourns® standard products are not tested to comply with United States Federal Aviation Administration standards generally
or any other generally equivalent governmental organization standard applicable to products designed or manufactured for
use in aircraft or space applications. Bourns expressly identies Bourns® standard products that are suitable for use in aircraft
or space applications on such products’ data sheets in the section entitled “Applications.” Unless expressly and specically
approved in writing by two authorized Bourns representatives on a case-by-case basis, use of any other Bourns® standard
product in an aircraft or space application might not be safe and thus is not recommended, authorized or intended and is at the
user’s sole risk.
The use and level of testing applicable to Bourns® custom products shall be negotiated on a case-by-case basis by Bourns and
the user for which such Bourns® custom products are specially designed. Absent a written agreement between Bourns and the
user regarding the use and level of such testing, the above provisions applicable to Bourns® standard products shall also apply
to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns® products or technology for use in activities which involve the
design, development, production, use or stockpiling of nuclear, chemical or biological weapons or missiles, nor shall they use
Bourns® products or technology in any facility which engages in activities relating to such devices. The foregoing restrictions
apply to all uses and applications that violate national or international prohibitions, including embargos or international
regulations. Further, Bourns® products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns® products may not, without prior
authorization from Bourns and/or the U.S. Government, be resold, transferred, or re-exported to any party not eligible
to receive U.S. commodities, software, and technical data.
To the maximum extent permitted by applicable law, Bourns disclaims (i) any and all liability for special, punitive, consequential,
incidental or indirect damages or lost revenues or lost prots, and (ii) any and all implied warranties, including implied warranties
of tness for particular purpose, non-infringement and merchantability.
For your convenience, copies of this Legal Disclaimer Notice with German, Spanish, Japanese, Traditional Chinese and Simplied Chinese
bilingual versions are available at:
Web Page: http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
C1753 05/17/18R