12
Precision forging technology for high
power applications
Omnidirectional pins
Designed for BGA and other surface
mount packages
Various mounting methods available
Select from multiple fin heights
No special tools needed for assembly
No additional holes required on the PCB
Special clip easily snaps on and self-aligns
Part Number
Fin Matrix
(Rows x Columns)
Length x Width x Height
(mm)
Thermal Resistance (°C/Watt)
Pressure Drop
(inches of water)
NATURAL
CONVECTION
FORCED
CONVECTION
@ 200 LFPM
APR19-19-12CB 5 x 5 18.6 x 18.6 x 11.6 15.66 6.90
0.013
APR19-19-15CB 5 x 5 18.6 x 18.6 x 14.6 15.26 6.60
0.013
APR19-19-18CB 5 x 5 18.6 x 18.6 x 17.6 14.56 5.90
0.013
APR19-19-21CB 5 x 5 18.6 x 18.6 x 20.6 14.53 5.90
0.013
APR19-19-23CB 5 x 5 18.6 x 18.6 x 22.6 14.19 5.58
0.013
APR19-19-28CB 5 x 5 18.6 x 18.6 x 27.6 13.15 5.11
0.013
APR19-19-33CB 5 x 5 18.6 x 18.6 x 32.6 12.45 4.71
0.013
APR21-21-12CB 6 x 6 20.6 x 20.6 x 11.6 14.96 6.41
0.015
APR21-21-15CB 6 x 6 20.6 x 20.6 x 14.6 14.57 6.09
0.015
APR21-21-18CB 6 x 6 20.6 x 20.6 x 17.6 14.17 5.74
0.015
APR21-21-21CB 6 x 6 20.6 x 20.6 x 20.6 13.83 5.42
0.015
APR21-21-23CB 6 x 6 20.6 x 20.6 x 22.6 13.47 5.10
0.015
APR21-21-28CB 6 x 6 20.6 x 20.6 x 27.6 12.48 4.74
0.015
APR21-21-33CB 6 x 6 20.6 x 20.6 x 32.6 11.83 4.35
0.015
APR23-23-12CB 7 x 7 22.6 x 22.6 x 11.6 14.30 5.96
0.018
APR23-23-15CB 7 x 7 22.6 x 22.6 x14.6 13.93 5.62
0.018
APR23-23-18CB 7 x 7 22.6 x 22.6 x17.6 13.54 5.26
0.018
APR23-23-21CB 7 x 7 22.6 x 22.6 x20.6 13.20 4.94
0.018
APR23-23-23CB 7 x 7 22.6 x 22.6 x22.6 12.81 4.62
0.018
APR23-23-28CB 7 x 7 22.6 x 22.6 x27.6 11.88 4.26
0.018
APR23-23-33CB 7 x 7 22.6 x 22.6 x32.6 11.29 3.99
0.018
APR25-25-12CB 7 x 7 24.6 x 24.6 x 11.6 13.70 5.50
0.020
APR25-25-15CB 7 x 7 24.6 x 24.6 x 14.6 13.35 5.14
0.020
APR25-25-18CB 7 x 7 24.6 x 24.6 x 17.6 12.97 4.78
0.020
APR25-25-21CB 7 x 7 24.6 x 24.6 x 20.6 12.61 4.46
0.020
Width
Length
Height
13
Part Number
Fin Matrix
(Rows x Columns)
Length x Width x Height
(mm)
Thermal Resistance (°C/Watt)
Pressure Drop
(inches of water)
NATURAL
CONVECTION
FORCED
CONVECTION
@ 200 LFPM
APR25-25-23CB 7 x 7 24.6 x 24.6 x 22.6 12.21 4.14
0.020
APR25-25-28CB 7 x 7 24.6 x 24.6 x 27.6 11.32 3.77
0.020
APR25-25-33CB 7 x 7 24.6 x 24.6 x 32.6 10.78 3.46
0.020
APR27-27-12CB 8 x 8 26.6 x 26.6 x 11.6 13.17 5.04
0.022
APR27-27-15CB 8 x 8 26.6 x 26.6 x 14.6 12.77 4.67
0.022
APR27-27-18CB 8 x 8 26.6 x 26.6 x 17.6 12.43 4.30
0.022
APR27-27-21CB 8 x 8 26.6 x 26.6 x 20.6 12.05 3.98
0.022
APR27-27-23CB 8 x 8 26.6 x 26.6 x 22.6 11.63 3.66
0.022
APR27-27-28CB 8 x 8 26.6 x 26.6 x 27.6 10.79 3.40
0.022
APR27-27-33CB 8 x 8 26.6 x 26.6 x 32.6 10.31 3.20
0.022
APR29-29-12CB 8 x 8 28.6 x 28.6 x 11.6 12.58 4.25
0.025
APR29-29-15CB 8 x 8 28.6 x 28.6 x 14.6 12.28 3.98
0.025
APR29-29-18CB 8 x 8 28.6 x 28.6 x 17.6 11.91 3.73
0.025
APR29-29-21CB 8 x 8 28.6 x 28.6 x 20.6 11.63 3.47
0.025
APR29-29-23CB 8 x 8 28.6 x 28.6 x 22.6 11.21 3.26
0.025
APR29-29-28CB 8 x 8 28.6 x 28.6 x 27.6 10.43 2.94
0.025
APR29-29-33CB 8 x 8 28.6 x 28.6 x 32.6 9.87 2.70
0.025
APR31-31-12CB 8 x 8 30.6 x 30.6 x 11.6 12.37 3.79
0.027
APR31-31-15CB 8 x 8 30.6 x 30.6 x 14.6 11.86 3.53
0.027
APR31-31-18CB 8 x 8 30.6 x 30.6 x 17.6 11.47 3.26
0.027
APR31-31-21CB 8 x 8 30.6 x 30.6 x 20.6 11.10 3.03
0.027
APR31-31-23CB 8 x 8 30.6 x 30.6 x 22.6 10.71 2.78
0.027
APR31-31-28CB 8 x 8 30.6 x 30.6 x 27.6 9.87 2.52
0.027
APR31-31-33CB 8 x 8 30.6 x 30.6 x 32.6 9.43 2.33
0.027
APR33-33-12CB 9 x 9 32.6 x 32.6 x 11.6 11.85 3.46
0.029
APR33-33-15CB 9 x 9 32.6 x 32.6 x 14.6 11.35 3.27
0.029
APR33-33-18CB 9 x 9 32.6 x 32.6 x 17.6 10.96 3.01
0.029
APR33-33-21CB 9 x 9 32.6 x 32.6 x 20.6 10.54 2.78
0.029
APR33-33-23CB 9 x 9 32.6 x 32.6 x 22.6 10.24 2.56
0.029
APR33-33-28CB 9 x 9 32.6 x 32.6 x 27.6 9.40 2.33
0.029
APR33-33-33CB 9 x 9 32.6 x 32.6 x 32.6 8.89 2.12
0.029
APR35-35-12CB 10 x10 34.7 x 34.7 x 11.6 10.90 3.19
0.036
APR35-35-15CB 10 x 10 34.7 x 34.7 x 14.6 10.60 2.97
0.036
APR35-35-18CB 10 x 10 34.7 x 34.7 x 19.6 10.20 2.70
0.036
APR35-35-21CB 10 x 10 34.7 x 34.7 x 20.6 9.85 2.51
0.036
APR35-35-23CB 10 x 10 34.7 x 34.7 x 22.6 9.49 2.28
0.036
APR35-35-28CB 10 x 10 34.7 x 34.7 x 27.6 8.87 2.06
0.036
APR35-35-33CB 10 x 10 34.7 x 34.7 x 32.6 8.22 1.90
0.036
APR38-38-12CB 11 x11 37.5 x 37.5 x 11.6 10.13 3.04
0.04
APR38-38-15CB 11 x 11 37.5 x 37.5 x 14.6 9.73 2.85
0.04
APR38-38-18CB 11 x 11 37.5 x 37.5 x 19.6 9.43 2.66
0.04
APR38-38-21CB 11 x 11 37.5 x 37.5 x 20.6 9.13 2.41
0.04
APR38-38-23CB 11 x 11 37.5 x 37.5 x 22.6 8.23 2.21
0.04
APR38-38-28CB 11 x 11 37.5 x 37.5 x 27.6 7.73 2.00
0.04
APR38-38-33CB 11 x 11 37.5 x 37.5 x 32.6 7.13 1.80
0.04
APR40-40-12CB 11 x11 39.6 x 39.6 x 11.6 9.51 2.96
0.05
APR40-40-15CB 11 x 11 39.6 x 39.6 x 14.6 9.21 2.76
0.05
APR40-40-18CB 11 x 11 39.6 x 39.6 x 17.6 8.65 2.50
0.05
APR40-40-21CB 11 x 11 39.6 x 39.6 x 20.6 8.43 2.30
0.05
APR40-40-23CB 11 x 11 39.6 x 39.6 x 22.6 7.99 2.09
0.05
APR40-40-28CB 11 x 11 39.6 x 39.6 x 27.6 7.41 1.85
0.05
APR40-40-33CB 11 x 11 39.6 x 39.6 x 32.6 7.00 1.65
0.05
APR43-43-12CB 11 x 11 42.1 x 42.1 x 11.6 8.97 2.85
0.068