274-1AB Wakefield Thermal Solutions, 274-1AB Datasheet - Page 17
![HEATSINK TO-220 LOW HEIGHT BLK](/photos/5/88/58821/274-1ab_sml.jpg)
274-1AB
Manufacturer Part Number
274-1AB
Description
HEATSINK TO-220 LOW HEIGHT BLK
Manufacturer
Wakefield Thermal Solutions
Series
274r
Specifications of 274-1AB
Thermal Resistance
8 C / W
Height
0.375" (9.53mm)
Color
Black
Package Cooled
TO-220
Attachment Method
Bolt On and PC Pin
Outline
19.05mm x 13.21mm
Power Dissipation @ Temperature Rise
2W @ 56°C
Thermal Resistance @ Forced Air Flow
8.0°C/W @ 400 LFM
Thermal Resistance @ Natural
28°C/W
Product
Heatsinks
Mounting Style
SMD/SMT
Heatsink Material
Aluminum
Fin Style
Folded
Dimensions
13.21 mm L x 9.53 mm W x 19.05 mm H
Designed For
TO-220
Packages Cooled
TO-220
Width
19.1mm
Heat Sink Material
Aluminum
Length
13.2mm
Mounting Type
Screw
Package / Case
TO-220
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
345-1023
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
274-1AB
Manufacturer:
WAK
Quantity:
13 432
WTS001_p26-49
BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
260 SERIES
38
MECHANICAL DIMENSIONS
Dimensions: in. (mm)
Board Level
Heat Sinks
MECHANICAL DIMENSIONS
Dimensions: in. (mm)
258 SERIES
6/14/07
Epoxy Insulated For TO-5
Power semiconductors packaged in a TO-92 style plastic case can be cooled ef-
fectively at little additional cost with the addition of the 292-AB heat sink. The
Standard
P/N
258
Standard
P/N
292-AB
The thermal resistance from diode leads to chassis or heat sink is 12°C/watt,
when unit is mounted with TYPE 120 Joint Compound. If a 10°C/watt chassis or
258 SERIES
292 SERIES
260-4T5E
10:56 AM
0.500 (12.7) x 0.250 (6.4) x 0.340 (8.6)
Height Above
Page 38
0.750 (19.1)
Heat Sink for Single TO-92
PC Board
in. (mm)
Thermal Links for Fused Glass Diodes
Dimensions
in. (mm)
0. 600 (15.3)
Fin Width
in. (mm)
260-4TH5E
Overall
Aluminum
Material
292 SERIES
Thermal Performance
0.225°C/W @ 0.250 W
Natural Convection
292-AB is effective over the typical power range of such devices.
Material: Aluminum, Black Anodized
sink to ambient impedance is available, the thermal resistance from the diode
leads to ambient is reduced from about 150°C/watt to 22°C/watt.
DeltaCoate™ 151 on all surfaces
except solder pads and base
Finish
260-6SH5E
Black Anodized
CONVECTION CHARACTERISTICS
Finish
NATURAL AND FORCED
0.0018 (0.82)
lbs. (grams)
Weight
0.00049 (0.22)
lbs. (grams)
Weight
DIODES
TO-92