401A Wakefield Thermal Solutions, 401A Datasheet - Page 7

• Manufacturer Part Number: 401A
• Description: HEATSINK POWER TO-3 BLK
• Manufacturer: Wakefield Thermal Solutions
• Series: 401r

Specifications of 401A

• Height: 1.250" (31.7mm)
• Color: Black
• Package Cooled: TO-3
• Attachment Method: Bolt On
• Outline: 120.65mm x 38.10mm
• Power Dissipation @ Temperature Rise: 30W @ 80°C
• Thermal Resistance @ Forced Air Flow: 1.5°C/W @ 250 LFM
• Thermal Resistance @ Natural: 2.6°C/W
• Product: Heatsinks
• Mounting Style: Screw
• Heatsink Material: Aluminum
• Fin Style: Unidirectional Fin
• Dimensions: 38.1 mm L x 111.1 mm W x 31.8 mm H
• Designed For: TO-3, Stud Mounted Semiconductor Cases
• Packages Cooled: TO-3
• Thermal Resistance: 80°C/W
• Width: 120.7mm
• Heat Sink Material: Aluminum
• Length: 38.1mm
• Size: 1.250H X 4.750W"
• Mounting Type: PC Board Through Hole
• Package / Case: TO-3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 345-1047; 401-A

HIGH FIN DENSITY HEAT SINKS FOR POWER MODULES, IGBTs, RELAYS
N o t e s :
1. Precision-milled base for maximum heat transfer
392 SERIES HIGH PERFORMANCE HEAT SINKS FOR POWER MODULES, IGBTs AND SOLID STATE RELAYS
All other products, please contact factory for price, delivery, and minimums.
Extruded
Heat Sinks
p e rformance (flatness 0.002 in./in.)
MECHANICAL DIMENSIONS
510 SERIES
511 AND 512 SERIES
Dimensions: in. (mm)
Series
510-U
510-M
Series
511-U 512-U
511-M 512-M 0.220 (5.6)
0.216 (5.5)
0.165 (4.2)
0.250 (6.4)
A
A
510, 511 AND 512 SERIES
Milled
511-9M
511-12M
Standard Catalog P/N
Base
510-3M
510-6M
510-9M
510-12M
510-14M
511-3M
511-6M
512-3M
512-6M
512-9M
512-12M
3.136 (79.7)
3.106 (78.9)
2.410 (61.2)
2.350 (59.7
510 Series (Extrusion Profile 5113)
Anodized
3 9 2 - 1 2 0 A B
392-180AB
392-300AB
(1)
B
B
Black
MECHANICAL DIMENSIONS
511 Series (Extrusion Profile 6438-1)
512 Series (Extrusion Profile 6438-2)
Dimensions: in. (mm)
Standard P/N, Finish
PROFILE 5658)
(EXTRUSION
392 SERIES
0.372 (9.4) 0.006 in./in. (0.15 mm/mm)
0.342 (8.7) 0.002 in./in. (0.05 mm/mm)
0.006 in./in. (0.15 mm/mm)
0.002 in./in. (0.05 mm/mm)
Nonmilled
C
510-3U
512-3U
510-6U
510-9U
510-12U
510-14U
511-3U
511-6U
511-9U
511-12U
512-6U
512-9U
512-12U
Base
(5)
(2)
3 9 2 - 1 2 0 A G
392-180AG
392-300AG
Flatness
Iridite
Gold
Flatness
2. Nonmilled base flatness: 0.006 in./in.
3. Natural convection heat dissipation for distributed heat
s o u rces at 50°C rise.
7.380 (187.452)
7.380 (187.452)
7.380 (187.452)
7.380 (187.452)
7.380 (187.452)
5.210 (132.33)
5.210 (132.33)
5.210 (132.33)
5.210 (132.33)
7.200 (182.88)
7.200 (182.88)
7.200 (182.88)
7.200 (182.88)
Base Width
in. (mm)
11.811 (300.0)
4.725 (120.0)
7.087 (180.0)
in. (mm)
Length
56
9.000 (228.6)
12.000 (304.8)
14.000 (355.6)
3.000 (76.2)
6.000 (152.4)
9.000 (228.6)
9.000 (228.6)
12.000 (304.8)
3.000 (76.2)
6.000 (152.4)
12.000 (304.8)
3.000 (76.2)
6.000 (152.4)
in. (mm)
Length
Convection (Øsa)
Thermal Resistance at Typical Load
Natural
(°CW)
0 . 5 0
0 . 4 3
0 . 3 3
Milled Base
(“M Series”)
3.106 (78.9)
3.106 (78.9)
2.350 (59.7)
2.350 (59.7)
2.350 (59.7)
3.106 (78.9)
3.106 (78.9)
3.106 (78.9)
2.350 (59.7)
2,350 (59.7)
2.350 (59.7)
2.350 (59.7)
2.350 (59.7)
in. (mm)
Convection (Øsa)
(1)
4. F o rced convection heat dissipation for distributed heat
5. Standard models are provided without finish.
0.16 @ 100 CFM
0.11 @ 100 CFM
0.08 @ 100 CFM
Height
s o u rces at 100 cubic feet per minute, shrouded condition.
Forced
(°CW)
Nonmilled Base
392-120 (1 MOD)
392-180 (1 MOD)
392-300 (1 MOD)
392-300 (3 MOD)
(“U” Series)
3.136 (79.7)
3.136 (79.7)
3.136 (79.7)
2.410 (61.2)
2.410 (61.2)
2.410 (61.2)
C O N V E C T I O N
3.136 (79.7)
3.136 (79.7)
2.410 (61.2)
2.410 (61.2)
2.410 (61.2)
2.410 (61.2)
2.410 (61.2)
CONVECTION CHARACTERISTICS
N AT U R A L
in. (mm)
CONVECTION CHARACTERISTICS
NATURAL AND FORCED
NATURAL AND FORCED
(2)
Convection
Natural
(°C/W)
Thermal Resistance
(Øsa) at Typical Load
0.56
0.38
0.29
0.24
0.21
0.90
0.65
0.56
0.45
0.90
0.65
0.56
0.45
1O.420 (4726.51)
392-120 (1 MOD)
392-120 (3 MOD)
392-180 (1 MOD)
392-180 (3 MOD)
392-300 (3 MOD)
C O N V E C T I O N
4.452 (2019.43)
6.636 (3010.09)
lbs. (grams)
F O R C E D
(3)
(°C/W @ 100 CFM)
Weight
Convection
Normally stocked
Forced
0.068
0.060
0.088
0.070
0.066
0.062
0.059
0.120
0.045
0.120
0.068
0.060
0.045
(5)
(4)