Folded Back Heat Sinks 11

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  2. Heat Sinks
Manufacturers
    • Advanced Thermal Solutions
    • Artesyn Embedded Technologies
    • Assmann Wsw Components
    • Boyd
    • CUI Devices
    • Celduc Relais
    • Cincon Electronics
    • Crydom
    • Cts
    • Fischer Elektronik & Kg
    • Mean Well Enterprises
    • Ohmite Manufacturing
    • Omron
    • Schaffner Holding Ag
    • TDK
    • TE Connectivity
    • Traco Electronic Ag
    • Vicor
    • Wakefield Thermal Solutions
    • Wakefield-vette
Thermal Device Type
    • Heat Sink
Profile
    • Adhesive
    • Clip
    • Clip/Screw
    • Pin Fin Array
    • Screw
    • Solder
    • U
Body Material
    • Aluminium
    • Aluminium Alloy
    • Aluminium, Cold-Forged Aluminium
    • Chromate
    • Cold-Forged Aluminium, Aluminium
    • Copper
    • Copper Alloy
Device Used On
    • Converter
    • IC
    • Relay
    • Semiconductor
    • Transceiver
    • Transistor
Construction
    • Adhesive
    • Clip
    • Extruded
    • Fin
    • Fin Pin
    • Flared
    • Slide On
    • U
Fin Orientation (1)
    • Folded Back
    • Elliptical Fin
    • Fin Pin
    • Longitudinal
    • Omnidirectional
    • Pin Fin
    • Radial
    • Staggered
    • Transverse
Thermal Resistance
    • 1.5 Ω
    • 10 Ω
    • 10.03 Ω
    • 10.4 Ω
    • 11 Ω
    • 11.4 Ω
    • 11.5 Ω
    • 12 Ω
    • 12.02 Ω
    • 12.93 Ω
    • 13 Ω
    • 13.1 Ω
    • 13.2 Ω
    • 13.3 Ω
    • 13.4 Ω
    • 14.4 Ω
    • 15 Ω
    • 15.6 Ω
    • 16 Ω
    • 16.7 Ω
    • 17.4 Ω
    • 18 Ω
    • 19.7 Ω
    • 2 Ω
    • 2.2 Ω
    • 20 Ω
    • 20.3 Ω
    • 20.5 Ω
    • 20.8 Ω
    • 21 Ω
    • 21.2 Ω
    • 21.6 Ω
    • 24 Ω
    • 24.4 Ω
    • 25 Ω
    • 25.9 Ω
    • 27.2 Ω
    • 27.3 Ω
    • 3 Ω
    • 3.1 Ω
    • 3.2 Ω
    • 3.3 Ω
    • 3.5 Ω
    • 3.6 Ω
    • 3.7 Ω
    • 32 Ω
    • 35.2 Ω
    • 4.2 Ω
    • 4.4 Ω
    • 4.8 Ω
    • 5.3 Ω
    • 5.4 Ω
    • 5.85 Ω
    • 56 Ω
    • 7.4 Ω
    • 7.8 Ω
    • 8.24 Ω
    • 8.3 Ω
    • 8.7 Ω
    • 8.9 Ω
    • 9.18 Ω
    • 9.5 Ω
    • 9.9 Ω
    • 9.95 Ω
    • 970 mΩ
    • 99.99 Ω
Approvals (V)
    • CSA; UL
    • CUL; UL
    • UL
Height
    • 0.027 in (0.69 mm)
    • 0.189 in (4.8 mm)
    • 0.19 in (4.83 mm)
    • 0.22 in (5.6 mm)
    • 0.224 in (5.7 mm)
    • 0.235 in (5.97 mm)
    • 0.236 in (6 mm)
    • 0.24 in (6.1 mm)
    • 0.25 in (6.35 mm)
    • 0.252 in (6.4 mm)
    • 0.256 in (6.5 mm)
    • 0.295 in (7.5 mm)
    • 0.327 in (8.3 mm)
    • 0.339 in (8.6 mm)
    • 0.35 in (8.89 mm)
    • 0.35 in (8.9 mm)
    • 0.354 in (9 mm)
    • 0.357 in (9.06 mm)
    • 0.374 in (9.5 mm)
    • 0.375 in (9.52 mm)
    • 0.38 in (9.65 mm)
    • 0.394 in (10 mm)
    • 0.4 in (10.16 mm)
    • 0.402 in (10.2 mm)
    • 0.404 in (10.27 mm)
    • 0.449 in (11.4 mm)
    • 0.45 in (11.43 mm)
    • 0.472 in (12 mm)
    • 0.5 in (12.7 mm)
    • 0.551 in (14 mm)
    • 0.591 in (15 mm)
    • 0.598 in (15.2 mm)
    • 0.69 in (17.53 mm)
    • 0.7 in (17.78 mm)
    • 0.709 in (18 mm)
    • 0.72 in (18.29 mm)
    • 0.728 in (18.5 mm)
    • 0.748 in (19 mm)
    • 0.75 in (19.05 mm)
    • 0.763 in (19.38 mm)
    • 0.768 in (19.5 mm)
    • 0.787 in (20 mm)
    • 0.807 in (20.5 mm)
    • 0.827 in (21 mm)
    • 0.848 in (21.54 mm)
    • 0.866 in (22 mm)
    • 0.902 in (22.9 mm)
    • 0.906 in (23 mm)
    • 0.909 in (23.1 mm)
    • 0.949 in (24.1 mm)
    • 0.984 in (25 mm)
    • 1 in (25.4 mm)
    • 1.1 in (27.94 mm)
    • 1.102 in (28 mm)
    • 1.18 in (29.97 mm)
    • 1.201 in (30.5 mm)
    • 1.22 in (30.99 mm)
    • 1.25 in (31.75 mm)
    • 1.252 in (31.8 mm)
    • 1.283 in (32.6 mm)
    • 1.299 in (33 mm)
    • 1.375 in (34.93 mm)
    • 1.378 in (35 mm)
    • 1.5 in (38.1 mm)
    • 1.575 in (40 mm)
    • 1.75 in (44.45 mm)
    • 1.969 in (50 mm)
    • 2 in (50.8 mm)
    • 2.18 in (55.37 mm)
    • 2.35 in (59.7 mm)
    • 2.409 in (61.2 mm)
    • 2.5 in (63.5 mm)
    • 2.626 in (66.7 mm)
    • 3.094 in (78.6 mm)
    • 3.15 in (80 mm)
Width
    • 0.016 in (0.395 mm)
    • 0.106 in (2.7 mm)
    • 0.248 in (6.3 mm)
    • 0.25 in (6.35 mm)
    • 0.252 in (6.4 mm)
    • 0.276 in (7 mm)
    • 0.315 in (8 mm)
    • 0.355 in (9.02 mm)
    • 0.375 in (9.52 mm)
    • 0.39 in (9.9 mm)
    • 0.394 in (10 mm)
    • 0.433 in (11 mm)
    • 0.45 in (11.43 mm)
    • 0.492 in (12.5 mm)
    • 0.5 in (12.7 mm)
    • 0.512 in (13 mm)
    • 0.515 in (13.08 mm)
    • 0.52 in (13.2 mm)
    • 0.53 in (13.46 mm)
    • 0.531 in (13.5 mm)
    • 0.551 in (14 mm)
    • 0.57 in (14.48 mm)
    • 0.571 in (14.5 mm)
    • 0.59 in (14.99 mm)
    • 0.591 in (15 mm)
    • 0.63 in (16 mm)
    • 0.64 in (16.26 mm)
    • 0.709 in (18 mm)
    • 0.748 in (19 mm)
    • 0.75 in (19.05 mm)
    • 0.763 in (19.38 mm)
    • 0.764 in (19.4 mm)
    • 0.787 in (20 mm)
    • 0.827 in (21 mm)
    • 0.878 in (22.3 mm)
    • 0.906 in (23 mm)
    • 0.95 in (24.13 mm)
    • 0.953 in (24.2 mm)
    • 0.984 in (25 mm)
    • 1 in (25.4 mm)
    • 1.063 in (27 mm)
    • 1.098 in (27.9 mm)
    • 1.21 in (30.73 mm)
    • 1.22 in (31 mm)
    • 1.378 in (35 mm)
    • 1.433 in (36.4 mm)
    • 1.472 in (37.4 mm)
    • 1.575 in (40 mm)
    • 1.614 in (41 mm)
    • 1.654 in (42 mm)
    • 1.772 in (45 mm)
    • 1.78 in (45.2 mm)
    • 1.81 in (45.97 mm)
    • 1.811 in (46 mm)
    • 1.969 in (50 mm)
    • 2 in (50.8 mm)
    • 2.22 in (56.4 mm)
    • 2.264 in (57.5 mm)
    • 2.28 in (57.9 mm)
    • 2.283 in (58 mm)
    • 2.323 in (59 mm)
    • 2.402 in (61 mm)
    • 2.433 in (61.8 mm)
    • 2.559 in (65 mm)
    • 2.752 in (69.9 mm)
    • 3.15 in (80 mm)
    • 3.37 in (85.6 mm)
    • 4.752 in (120.7 mm)
    • 6.26 in (159 mm)
    • 7.2 in (182.88 mm)
Finish
    • Anodized
    • Black Anodized
    • Gold Anodized
    • Nickel
    • Tin
    • Tin Lead
    • Tin/Nickel
Diameter
    • 0.305 in (7.75 mm)
    • 1.375 in (34.92 mm)
Color
    • Black
    • Blue
    • Gray
    • Green
    • Natural
Additional Features
    • Approvals: CE; EAC
    • Low Profile
    • Maxiflow, Device Used On: Half Brick DC-DC Converter
    • Thermal Resistance Min: 0.95
Packing Method
    • Bag
    • Bulk
    • Tape and Reel
    • Tape and Reel, 13 in
Weight
    • 12 g
    • 12.26 g
    • 14.17 g
    • 14.6 g
    • 15.88 g
    • 150 g
    • 158 g
    • 17.5 g
    • 18 g
    • 2 g
    • 2.2 g
    • 2.5 g
    • 24 g
    • 24.95 g
    • 25 g
    • 250 g
    • 27 g
    • 280 g
    • 285.77 g
    • 3.3 g
    • 3.6 g
    • 3.8 g
    • 3.9 g
    • 31.75 g
    • 353 g
    • 37 g
    • 38 g
    • 4.09 g
    • 46 g
    • 49.9 g
    • 5.45 g
    • 51 g
    • 530.71 g
    • 6.7 g
    • 6.81 g
    • 60.33 g
    • 68.04 g
    • 7 g
    • 820 mg
    • 85 g
    • 9.49 g
Length
    • 0.034 in (0.86 mm)
    • 0.394 in (10 mm)
    • 0.5 in (12.7 mm)
    • 0.512 in (13 mm)
    • 0.52 in (13.2 mm)
    • 0.52 in (13.21 mm)
    • 0.551 in (14 mm)
    • 0.57 in (14.48 mm)
    • 0.591 in (15 mm)
    • 0.63 in (16 mm)
    • 0.64 in (16.26 mm)
    • 0.728 in (18.5 mm)
    • 0.748 in (19 mm)
    • 0.75 in (19.05 mm)
    • 0.752 in (19.1 mm)
    • 0.787 in (20 mm)
    • 0.81 in (20.57 mm)
    • 0.827 in (21 mm)
    • 0.86 in (21.84 mm)
    • 0.866 in (22 mm)
    • 0.874 in (22.2 mm)
    • 0.875 in (22.23 mm)
    • 0.9 in (22.86 mm)
    • 0.906 in (23 mm)
    • 0.909 in (23.1 mm)
    • 0.942 in (23.93 mm)
    • 0.984 in (25 mm)
    • 1 in (25.4 mm)
    • 1.02 in (25.91 mm)
    • 1.024 in (26 mm)
    • 1.03 in (26.16 mm)
    • 1.031 in (26.2 mm)
    • 1.063 in (27 mm)
    • 1.098 in (27.9 mm)
    • 1.142 in (29 mm)
    • 1.157 in (29.4 mm)
    • 1.181 in (30 mm)
    • 1.21 in (30.73 mm)
    • 1.22 in (31 mm)
    • 1.358 in (34.5 mm)
    • 1.374 in (34.9 mm)
    • 1.375 in (34.92 mm)
    • 1.378 in (35 mm)
    • 1.38 in (35.05 mm)
    • 1.409 in (35.8 mm)
    • 1.433 in (36.4 mm)
    • 1.45 in (36.83 mm)
    • 1.48 in (37.59 mm)
    • 1.5 in (38.1 mm)
    • 1.575 in (40 mm)
    • 1.638 in (41.6 mm)
    • 1.65 in (41.9 mm)
    • 1.65 in (41.91 mm)
    • 1.654 in (42 mm)
    • 1.75 in (44.45 mm)
    • 1.772 in (45 mm)
    • 1.78 in (45.2 mm)
    • 1.81 in (45.97 mm)
    • 1.811 in (46 mm)
    • 1.9 in (48.26 mm)
    • 1.961 in (49.8 mm)
    • 1.969 in (50 mm)
    • 2 in (50.8 mm)
    • 2.087 in (53 mm)
    • 2.254 in (57.25 mm)
    • 2.28 in (57.9 mm)
    • 2.323 in (59 mm)
    • 2.402 in (61 mm)
    • 2.52 in (64 mm)
    • 2.953 in (75 mm)
    • 3 in (76.2 mm)
    • 3.189 in (81 mm)
    • 3.937 in (100 mm)
    • 39.37 in (1000 mm)
    • 4 in (101.6 mm)
    • 4.39 in (111.5 mm)
    • 4.598 in (116.8 mm)
    • 4.803 in (122 mm)
    • 5.52 in (140.2 mm)
    • 9 in (228.6 mm)
Power (Rated)
    • 15 W
Reset All
Part RoHS Manufacturer Thermal Device Type Profile Body Material Device Used On Construction Fin Orientation Thermal Resistance Approvals (V) Height Width Finish Diameter Color Additional Features Packing Method Weight Length Power (Rated)

7109DG/TR

Boyd

Heat Sink

Copper

IC

Folded Back

11 Ω

0.45 in (11.43 mm)

0.763 in (19.38 mm)

Tin

Tape and Reel

1 in (25.4 mm)

7109DG

Boyd

Heat Sink

Copper

IC

Folded Back

11 Ω

0.763 in (19.38 mm)

0.45 in (11.43 mm)

Tin

1 in (25.4 mm)

574502B03300G

Boyd

Heat Sink

Aluminium

Slide On

Folded Back

21.2 Ω

0.75 in (19.05 mm)

0.39 in (9.9 mm)

Anodized

Black

0.81 in (20.57 mm)

7023BG

Boyd

Heat Sink

Aluminium

Fin

Folded Back

4.4 Ω

1.75 in (44.45 mm)

0.95 in (24.13 mm)

Anodized

Black

1.9 in (48.26 mm)

574602B03300G

Boyd

Heat Sink

U

Aluminium

Slide On

Folded Back

21.6 Ω

0.69 in (17.53 mm)

0.355 in (9.02 mm)

Anodized

Black

0.86 in (21.84 mm)

218-40CTE5

Wakefield-vette

Heat Sink

U

Aluminium

Fin

Folded Back

0.402 in (10.2 mm)

0.5 in (12.7 mm)

Anodized

Black

1.031 in (26.2 mm)

574902B03300G

Boyd

Heat Sink

Aluminium

Slide On

Folded Back

16 Ω

1.375 in (34.93 mm)

0.355 in (9.02 mm)

Anodized

Black

0.86 in (21.84 mm)

574602B03300

Boyd

Heat Sink

Aluminium

Transistor

Folded Back

0.027 in (0.69 mm)

0.016 in (0.395 mm)

Black Anodized

Black

0.034 in (0.86 mm)

V5641A-T

Assmann Wsw Components

Heat Sink

Aluminium Alloy

Transistor

Folded Back

21 Ω

0.252 in (6.4 mm)

0.878 in (22.3 mm)

Anodized

Black

1.409 in (35.8 mm)

7106D

Boyd

Heat Sink

Copper Alloy

IC

U

Folded Back

0.375 in (9.52 mm)

0.59 in (14.99 mm)

Tin Lead

Low Profile

Bag

1.02 in (25.91 mm)

7106D/TR

Boyd

Heat Sink

Copper Alloy

IC

U

Folded Back

0.375 in (9.52 mm)

0.59 in (14.99 mm)

Tin Lead

Low Profile

Tape and Reel, 13 in

1.02 in (25.91 mm)

Heat Sinks

Heat sinks are passive cooling devices that are used to dissipate heat generated by electronic components such as CPUs, GPUs, and power amplifiers. They work by increasing the surface area available for heat dissipation, allowing heat to be transferred more efficiently from the component to the surrounding air.

Heat sinks come in a variety of shapes and sizes, including finned heat sinks, pin fin heat sinks, and heat pipes. They are typically made of aluminum or copper, which have high thermal conductivity and good heat dissipation properties.

Heat sinks are mounted directly onto the electronic component using thermal interface material, such as thermal paste or thermal pads. The thermal interface material fills any gaps between the heat sink and the component, ensuring efficient heat transfer.

Heat sinks offer several advantages over other types of cooling devices. They are passive, which means they do not require any additional power to operate. They are also highly reliable and have no moving parts that can wear out or break down over time.

However, heat sinks also have some limitations, such as limited cooling capacity and susceptibility to external disturbances. They also require adequate airflow to be effective, which can be a challenge in confined spaces.