DA-T268-101E Ohmite, DA-T268-101E Datasheet
![HEATSINK FOR TO-268 BLACK](/photos/5/90/59068/da-t268-101e_sml.jpg)
DA-T268-101E
Manufacturer Part Number
DA-T268-101E
Description
HEATSINK FOR TO-268 BLACK
Manufacturer
Ohmite
Series
Dr
Datasheet
1.DV-T268-101E.pdf
(1 pages)
Specifications of DA-T268-101E
Package Cooled
TO-268
Attachment Method
Press Fit
Outline
31.00mm x 12.70mm
Height
0.4" (10.16mm)
Power Dissipation @ Temperature Rise
5W @ 35°C
Thermal Resistance @ Forced Air Flow
6°C/W @ 550 LFM
Product
Heatsinks
Mounting Style
SMD/SMT
Heatsink Material
Aluminum
Fin Style
Extruded
Dimensions
31 mm L x 12.7 mm W x 10.16 mm H
Designed For
TO-268
Color
Black
Packages Cooled
TO-268
External Width - Metric
31mm
External Height - Metric
10.16mm
External Length - Metric
12.7mm
Heat Sink Material
Aluminium
Length
12.7mm
Mounting Type
Surface Mount
Rohs Compliant
Yes
Msl
MSL 1 - Unlimited
External Width - Imperial
1.22"
External Height - Imperial
0.4"
External Length - Imperial
0.5"
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Thermal Resistance @ Natural
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Ohmite D Series heatsinks
provide an innovative solu-
tion for SMT compatible
semiconductors and resistors.
The unique design (Patent
Pending) combines tin plated,
solderable rods with an alu-
minum extruded heat sink
body. These rods (or "roll-
ers") are mated mechanically
to the heatsink by forging to
reduce the thermal resistance
between the heatsink body
and the solderable feet.
with the increasingly popular
TO-252, TO-263 and TO-268
packages, the D Series affords
the user superior thermal
performance over the more
common stamped aluminum
heatsinks. By eliminating the
staking joint typically used in
stamped heatsinks, the result-
ing air gap and thermal “bottle-
neck” is also eliminated, while
surface area for cooling is
maximized with the extruded
fins of the D Series body.
H e a T d i S S i P a T i o n
Ohmite Mfg. Co.
Specifically designed for use
Part number
DV-T263-101E
DA-T263-101E
DV-T263-101E-TR
DA-T263-101E-TR
DV-T268-101E
DA-T268-101E
DV-T268-101E-TR
DA-T268-101E-TR
S t a n d a r d p a r t n u m b e r S F o r d S e r i e S
Note: order TO-263 for TO-252 devices
60
55
50
45
40
35
30
25
50
45
40
35
30
25
1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
200
200
2
2
also for TO-252 (D)
description
for D2 pack, no finish (degreased)
for D2 pack, black anodized finish
for D2 pack, no finish (degreased)
for D2 pack, black anodized finish
for D3 pack, no finish (degreased)
for D3 pack, black anodized finish
for D3 pack, no finish (degreased)
for D3 pack, black anodized finish
TO-268 (D3)
TO-263 (D2)
400
400
Heat Dissipated (watts)
4
4
Heat Dissipated (watts)
Air Velocity (ft./min.)
Air Velocity (ft./min.)
600
600
6
6
F e a T u r e S
• Increased thermal performance
• Increased surface areas by 3
• Unique aluminum extrusion
• Light weight aluminum construc-
• Radius mounted “Rollers” are
• Available in bulk packaging or
• Weight: D2 (TO-263): 3.8g
• RoHS Compliant
up to 30% over bright copper
heat sinks from improved radia-
tion of the black finish
times therefore thermal per-
formance up to 300% over the
aluminum stamped heat sinks on
markets
design reduces the heat sink
cost ver sus similar designs uti-
lizing copper
tion allows faster pick and place
assembly reducing the manufac-
turing cycle time
designed for maximizing heat
transfer from the component
and avoiding the thermal “bottle-
neck” seen in stamped and
staked heatsinks.
tape & reel (250 units per reel
800
800
8
8
D3 (TO-268): 4.1g
1000
1000
10
10
14
12
10
12
10
8
6
4
8
6
4
Packaging
Bulk
Bulk
Reel
Reel
Bulk
Bulk
Reel
Reel
L a n d P a T T e r n
T a P e a n d r e e L
Pocket depth: 0.41" (10.50mm)
Pocket pitch: 0.79" (20.00mm)
Reel diameter: 13.00" (330.00mm)
250 pcs. per reel
TO-263 (D2)
use also for TO-252 (D)
TO-268 (D3)
10.16mm
(14.2mm)
(14.2mm)
12.7mm
0.50"
0.40"
0.64" (16.3mm)
0.83" (21.1mm)
0.56"
0.56"
2.54mm
0.10"
D Series Heatsinks
0.41"
10.5mm
TO-263 (D2)
25.91mm
(1.40mm)
(1.40mm)
1.02"
0.44" (11.2mm)
0.56" (14.2mm)
0.63" (16.1mm)
0.75" (19.1mm)
0.06"
0.06"
24mm
0.94"
TO-268 (D3)
0.35" (8.89mm)
0.44" (11.2mm)
0.63" (16.0mm)
0.62" (15.8mm)
0.81" (20.6mm)
6.86mm
31.0mm
0.27"
1.22"
1.55mm
ø0.06"
0.16"
4mm
TO-263 (D2)
TO-268 (D3)
For SMT devices
0.076"
(1.94mm)
0.03"
(0.80mm) TO-263 (D2)
40.4mm
0.03"
(0.80mm)
1.59"
TO-252 (D)
TO-263 (D2)
(13.7mm)
(13.7mm)
0.54"
0.54"
Note: order
44mm
TO-263 for
1.73"
TO-252 (D)
TO-252
devices
69