B60/C60 Series
Heat Sink System
Ohmite introduces the powerful B60/
C60 series heatsink with cam clip (Pat.
Pending) or custom mounting. This
series offers flexible, high performance
and compact heat sink with exchange-
able cam clip system for TO-247 and
TO-264 devices. The built in lip is pro-
vided for mounting ease. The optional B
series can be tapped for popular Ohmite
resistors or other devices. These power-
ful heat sinks can be thru-hole soldered
as a single or dual unit. The dual unit
can be mated to a 60mm fan for greater
thermal performance. It is the ideal type
of heat sink for high power density and
small size (3U or 4U) electronic packag-
ing with forced convection.
SerieS SPeCiFiCatiONS
Heatsink Surface Area Weight Length L
2 2
consult factory for
Part Number (in / mm ) (oz / g) (mm)
alternate lengths and
C60-075-VE 177 / 114,300 5.7 / 163 75 clip combinations
C60-075-AE
B60-075-VE 177 / 114,300 5.7 / 163 75
B60-075-AE
CharaCteriStiCS
Heat Sink Aluminum Alloy 6063-T5 or Equivalent with either degreased or black Heat Dissipation
anodized finish.
2
Music Wire, Per ASTM A228 with bright nickel plating
Spring Clip
Solder Foot Cold-rolled Steel, Per ASTM A-366 with pure tin over copper strike.
1.5
4 devices
RoHS compliant.
o
Fan 60mm fan with 4 self-tapping M3.5 screws
1
Interface Thermal For improvement, use thermal joint compound, 0.005 Grafoil (TGon
2 devices
Resistance 800 by Laird), or phase change material (Hi-Flow by Bergquist)
Insulator (Optional) Sil-Pad 900-S, K6 800-S and K10 by Bergquist
0.5
0
20 30 40 50
Fan Flow Rate (cfm)
(continued)
166 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
Thermal Resistance from Case to
Ambient per Device (C/watts)0.16"
(3.9mm)
B60/C60 Series
Heat Sink System
dimeNSiONS
2.58"
2.53"
(65.5mm)
(64.2mm)
2x 0.079"
2.48"
2.07"
(2mm)
0.079" (63mm)
(52.7mm)
(2mm)
1.19"*
(30.2mm)
2.95"
2.79"
75.0mm
(71.0mm)
2.95"
C60
B60
(75.0mm)
2.63"
(66.7mm)
2.78" REF
(70.7mm)
2.74" REF
(69.5mm)
0.31"
0.12"
(8mm)
1.97"*
(3mm)
(50mm)
0.12"
(3mm)
0.049"
(1.25mm)
1.61"
0.17"
0.17" (41mm)
(4.3mm)
1.61
(4.3mm)
(41mm)
0.080"
1.97"
(2.03mm)
(50mm)
0.08"
0.32"
(2mm)
(8.1mm)
0.47"
(12mm)
6x
Clip Dimensions T247 0.63" (16.1mm)
0.07" pth
T264 0.80" (20.2mm)
(1.8mm)
0.43" W +0.12"
(11mm) (+3.0mm)
NOTE: Due to pos-
L
W
sible screw torquing LAND
L 0.16"
PATTERN
Y
on long extrusions,
(0.16mm)
Customer should
0.78"
check for coplanarity
(19.8mm)
X
prior to final assem-
1.39" REF
(35.3mm)
bly or soldering.
2x 0.08" 2x 0.18"
(2.0mm) 0.11" pth (4.06mm)
(2.8mm)
hOw tO Order
Heatsink Clip
RoHS compliant
CLA-T247-21E
C60XX-058-AE
Clip series Device type Standard RoHS
T247 = TO-247 configuration compliant
Series Hole Length Finish
T264 = TO-264
pattern (mm)
B = without lip A = black anodized
(optional)
C = with lip V = degreased
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 167