Page 1 of 3
November 2004
IERC a CTS Company 413 North Moss Street Burbank, CA 91502 818-842-7277 www.ctscorp.com
Series CPR Forged Copper Heat Sinks with Pin Fins
Part Number
Fin Matrix
(Rows x Columns)
Length x Width x
Height (mm)
Thermal Resistance
(C/Watt @ 200 LFPM)
Pressure Drop
(inches of water)
CPR19-19-12U
5 x 5
18.6 x 18.6 x 11.6
6.4
0.016
CPR19-19-15U
5 x 5
18.6 x 18.6 x 14.6
6.0
0.016
CPR19-19-20U
5 x 5
18.6 x 18.6 x 19.6
4.1
0.016
CPR19-19-25U
5 x 5
18.6 x 18.6 x 24.6
3.9
0.016
CPR27-27-12U
8 x 8
26.6 x 26.6 x 11.6
4.6
0.016
CPR27-27-15U
8 x 8
26.6 x 26.6 x 14.6
4.0
0.016
CPR27-27-20U
8 x 8
26.6 x 26.6 x 19.6
2.9
0.016
CPR27-27-25U
8 x 8
26.6 x 26.6 x 24.6
2.5
0.016
CPR29-29-12U
8 x 8
28.6 x 28.6 x 11.6
4.1
0.017
CPR29-29-15U
8 x 8
28.6 x 28.6 x 14.6
3.6
0.017
CPR29-29-20U
8 x 8
28.6 x 28.6 x 19.6
2.5
0.017
CPR29-29-25U
8 x 8
28.6 x 28.6 x 24.6
2.4
0.017
CPR33-33-12U
9 x 9
32.6 x 32.6 x 11.6
3.0
0.016
CPR33-33-15U
9 x 9
32.6 x 32.6 x 14.6
2.5
0.016
CPR33-33-20U
9 x 9
32.6 x 32.6 x 19.6
1.8
0.016
CPR33-33-25U
9 x 9
32.6 x 32.6 x 24.6
1.6
0.016
CPR35-35-12U 10
x
10
34.7
x 34.7 x 11.6
3.0
0.018
CPR35-35-15U 10
x
10
34.7
x 34.7 x 14.6
2.6
0.018
CPR35-35-20U 10
x
10
34.7
x 34.7 x 19.6
1.8
0.018
CPR35-35-25U 10
x
10
34.7
x 34.7 x 24.6
1.7
0.018
Material: Copper, CU1100
Features
Precision forging technology for high
power applications
Omni-directional pins
Designed for BGA and other surface
mount packages
Various mounting methods available
Select from multiple fin heights
Product Benefits
No special tools needed for assembly
No additional holes required on the PCB
Special clip easily snaps on and self-aligns
Series CPR Forged Copper Heat Sinks
Technical
Data
Page 2 of 3
November 2004
IERC a CTS Company 413 North Moss Street Burbank, CA 91502 818-842-7277 www.ctscorp.com
CLIP STYLES
Material: Nylon Plastic per UL94-V0
Series CPR Forged Copper Heat Sinks with Pin Fins
Part Number
Fin Matrix
(Rows x Columns)
Length x Width x
Height (mm)
Thermal Resistance
(C/Watt @ 200 LFPM)
Pressure Drop
(inches of water)
CPR38-38-12U 11
x
11
37.1
x 37.1 x 11.6
2.7
0.013
CPR38-38-15U 11
x
11
37.1
x 37.1 x 14.6
2.4
0.013
CPR38-38-20U 11
x
11
37.1
x 37.1 x 19.6
1.8
0.013
CPR38-38-25U 11
x
11
37.1
x 37.1 x 24.6
1.7
0.013
CPR40-40-12U 11
x
11
39.6
x 39.6 x 11.6
2.4
0.018
CPR40-40-15U 11
x
11
39.6
x 39.6 x 14.6
2.0
0.018
CPR40-40-20U 11
x
11
39.6
x 39.6 x 19.6
1.6
0.018
CPR40-40-25U 11
x
11
39.6
x 39.6 x 24.6
1.5
0.018
CPR43-43-12U 12
x
12
42.1
x 42.1 x 11.6
2.1
0.019
CPR43-43-15U 12
x
12
42.1
x 42.1 x 14.6
1.9
0.019
CPR43-43-20U 12
x
12
42.1
x 42.1 x 19.6
1.3
0.019
CPR43-43-25U 12
x
12
42.1
x 42.1 x 24.6
1.2
0.019
Material: Copper, CU1100
Nominal
Length x Width
(mm)
0.9 mm +/- 0.3 mm
Short Height
Color: Orange
1.7 mm +/- 0.3 mm
Medium Height
Color: Blue
3.3 mm +/- 0.3 mm
Tall Height
Color: Yellow
Actual
Length x Width x
Height (mm)
19 x 19
C1919S
C1919M
C1919T
21.2 x 21.2 x 9.1
21 x 21
C2121S
C2121M
C2121T
23.2 x 23.7 x 9.1
23 x 23
C2323S
C2323M
C2323T
25.2 x 25.7 x 9.1
25 x 25
C2525S
C2525M
C2525T 27.2 x 27.7 x 9.1
27 x 27
C2727S
C2727M
C2727T
29.2 x 29.7 x 9.1
29 x 29
C2929S
C2929M
C2929T
31.2 x 31.2 x 9.1
31 x 31
C3131S
C3131M
C3131T
33.2 x 33.7 x 9.1
33 x 33
C3333S
C3333M
C3333T
35.2 x 35.2 x 9.1
35 x 35
C3535S
C3535M
C3535T
37.2 x 37.7 x 9.1
37.5 x 37.5
C3838S
C3838M
C3838T
39.7 x 40.2 x 9.1
40 x 40
C4040S
C4040M
C4040T
42.2 x 42.7 x 9.1
42.5 x 42.5
C4343S
C4343M
C4343T
44.7 x 45.1 x 9.1
45 x 45
C4545S
C4545M
C4545T
42.7 x 47.7 x 9.1
HEIGHT
LENGTH
WIDTH
Page 3 of 3
November 2004
IERC a CTS Company 413 North Moss Street Burbank, CA 91502 818-842-7277 www.ctscorp.com
TAPE STYLES
HOW TO ORDER?
CPR 19-19-12 U /S
Part Number Series
Dimensions in mm (LxWxH)
Unplated
Mounting Options
Thermal
Tape
Supplier
Thickness
(mm)
Thermal
Impedance
(C-in/W)
Dielectric
Strength
(V/mil)
Description
A01 IERC 0.13 0.82 4,000
Double-sided
acrylic adhesive on a Kapton MT carrier.
T410 Chomerics 0.18
1.10
N/A
Double-sided acrylic adhesive loaded w/aluminum oxide
on an aluminum foil carrier.
T411 Chomerics 0.28
1.00
N/A
Double-sided silicone adhesive with expanded
aluminum mesh carrier.
T412 Chomerics 0.23
0.25
N/A
Double-sided acrylic adhesive loaded w/ titanium
diboride on an expanded aluminum carrier.
8815 3M 0.38 1.20 668
Double-sided acrylic adhesive loaded with ceramic
particles.
Clip Adhesive
Short "/S"
Double-sided Kapton
"/A01"
Medium "/M"
Chomerics Thermattach
"T410, T411, or T412"
Tall "/T"
3M
TM
"8815"
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