Natural Convection Heat Sinks

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  Manufacturer Part No Order Code Description / Manufacturer
Availability Price For
Price (Incl GST)
Quantity
Thermal Resistance Packages Cooled External Width - Metric External Height - Metric External Length - Metric External Diameter - Metric Heat Sink Material External Width - Imperial External Height - Imperial External Length - Imperial External Diameter - Imperial Product Range
 
 
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401K
401K - HEAT SINK

1591848

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 2.67°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 110 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 23/11/20

Thermal Resistance 2.67°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 31.8mm
External Length - Metric 38.1mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.25"
External Length - Imperial 1.5"
External Diameter - Imperial -
Product Range -

110 total stock globally

1+ $23.47 ($26.99) Price (Incl GST) 10+ $22.19 ($25.52) Price (Incl GST) 25+ $20.88 ($24.01) Price (Incl GST) 50+ $19.58 ($22.52) Price (Incl GST) 100+ $18.28 ($21.02) Price (Incl GST) 250+ $16.98 ($19.53) Price (Incl GST) More Pricing...

Qty

Each

1+ $23.47 ($26.99) 10+ $22.19 ($25.52) 25+ $20.88 ($24.01) 50+ $19.58 ($22.52) 100+ $18.28 ($21.02) 250+ $16.98 ($19.53) More Pricing...

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Min: 1 Mult: 1
2.67°C/W TO-3 120.7mm 31.8mm 38.1mm - Aluminium 4.75" 1.25" 1.5" - -
401A
401A - HEAT SINK

1591836

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 2.67°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 436 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 7/12/20

Thermal Resistance 2.67°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 31.8mm
External Length - Metric 38.1mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.25"
External Length - Imperial 1.5"
External Diameter - Imperial -
Product Range -

436 total stock globally

1+ $23.47 ($26.99) Price (Incl GST) 10+ $22.19 ($25.52) Price (Incl GST) 25+ $20.88 ($24.01) Price (Incl GST) 50+ $19.58 ($22.52) Price (Incl GST) 100+ $18.28 ($21.02) Price (Incl GST) 250+ $16.98 ($19.53) Price (Incl GST) More Pricing...

Qty

Each

1+ $23.47 ($26.99) 10+ $22.19 ($25.52) 25+ $20.88 ($24.01) 50+ $19.58 ($22.52) 100+ $18.28 ($21.02) 250+ $16.98 ($19.53) More Pricing...

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Min: 1 Mult: 1
2.67°C/W TO-3 120.7mm 31.8mm 38.1mm - Aluminium 4.75" 1.25" 1.5" - -
413K
413K - HEAT SINK

1592178

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 1.44°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 62 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 23/11/20

Thermal Resistance 1.44°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 47.6mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.87"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

62 total stock globally

1+ $32.45 ($37.32) Price (Incl GST) 10+ $30.67 ($35.27) Price (Incl GST) 25+ $28.86 ($33.19) Price (Incl GST) 50+ $27.05 ($31.11) Price (Incl GST) 100+ $25.26 ($29.05) Price (Incl GST) 250+ $23.45 ($26.97) Price (Incl GST) More Pricing...

Qty

Each

1+ $32.45 ($37.32) 10+ $30.67 ($35.27) 25+ $28.86 ($33.19) 50+ $27.05 ($31.11) 100+ $25.26 ($29.05) 250+ $23.45 ($26.97) More Pricing...

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Min: 1 Mult: 1
1.44°C/W TO-3 120.7mm 47.6mm 76.2mm - Aluminium 4.75" 1.87" 3" - -
421K
421K - HEAT SINK

1591885

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 0.7°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 436 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 19/10/20

Thermal Resistance 0.7°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 66.7mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 2.63"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

436 total stock globally

1+ $27.53 ($31.66) Price (Incl GST) 10+ $26.02 ($29.92) Price (Incl GST) 25+ $24.49 ($28.16) Price (Incl GST) 50+ $22.97 ($26.42) Price (Incl GST) 100+ $21.44 ($24.66) Price (Incl GST) 250+ $19.90 ($22.88) Price (Incl GST) More Pricing...

Qty

Each

1+ $27.53 ($31.66) 10+ $26.02 ($29.92) 25+ $24.49 ($28.16) 50+ $22.97 ($26.42) 100+ $21.44 ($24.66) 250+ $19.90 ($22.89) More Pricing...

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Min: 1 Mult: 1
0.7°C/W TO-3 120.7mm 66.7mm 76.2mm - Aluminium 4.75" 2.63" 3" - -
403-K.
403-K. - Heat Sink, Extruded Heat Sinks, High Power, 1.68 °C/W, TO-3, 120.7 mm, 31.8 mm, 76.2 mm

3354209

Heat Sink, Extruded Heat Sinks, High Power, 1.68 °C/W, TO-3, 120.7 mm, 31.8 mm, 76.2 mm

WAKEFIELD SOLUTIONS

Thermal Resistance 1.68°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

Heat Sink, Extruded Heat Sinks, High Power, 1.68 °C/W, TO-3, 120.7 mm, 31.8 mm, 76.2 mm

+ Check Stock & Lead Times

  • 3 available for 4 - 5 business days delivery: (UK stock) Order before 23:35 Mon-Fri (excluding National Holidays)
  • 149 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 7/09/20

Thermal Resistance 1.68°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 31.8mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.25"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

152 total stock globally

1+ $16.37 ($18.83) Price (Incl GST) 10+ $15.90 ($18.28) Price (Incl GST) 25+ $15.26 ($17.55) Price (Incl GST) 50+ $14.77 ($16.99) Price (Incl GST)

Qty

Each

1+ $16.37 ($18.83) 10+ $15.90 ($18.29) 25+ $15.26 ($17.55) 50+ $14.77 ($16.99)

Restricted Item
Add
Min: 1 Mult: 1
1.68°C/W TO-3 120.7mm 31.8mm 76.2mm - Aluminium 4.75" 1.25" 3" - -
403A
403A - HEAT SINK

1591850

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 1.83°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 18 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 23/11/20

Thermal Resistance 1.83°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 31.8mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.25"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

18 total stock globally

1+ $27.53 ($31.66) Price (Incl GST) 10+ $26.02 ($29.92) Price (Incl GST) 25+ $24.49 ($28.16) Price (Incl GST) 50+ $22.97 ($26.42) Price (Incl GST) 100+ $21.44 ($24.66) Price (Incl GST) 250+ $19.90 ($22.88) Price (Incl GST) More Pricing...

Qty

Each

1+ $27.53 ($31.66) 10+ $26.02 ($29.92) 25+ $24.49 ($28.16) 50+ $22.97 ($26.42) 100+ $21.44 ($24.66) 250+ $19.90 ($22.89) More Pricing...

Restricted Item
Add
Min: 1 Mult: 1
1.83°C/W TO-3 120.7mm 31.8mm 76.2mm - Aluminium 4.75" 1.25" 3" - -
421A
421A - HEAT SINK

1591873

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 0.7°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 53 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 19/10/20

Thermal Resistance 0.7°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 66.7mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 2.63"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

53 total stock globally

1+ $28.22 ($32.45) Price (Incl GST) 10+ $26.65 ($30.65) Price (Incl GST) 25+ $25.09 ($28.85) Price (Incl GST) 50+ $23.53 ($27.06) Price (Incl GST) 100+ $21.97 ($25.27) Price (Incl GST) 250+ $20.40 ($23.46) Price (Incl GST) More Pricing...

Qty

Each

1+ $28.22 ($32.45) 10+ $26.65 ($30.65) 25+ $25.09 ($28.85) 50+ $23.53 ($27.06) 100+ $21.97 ($25.27) 250+ $20.40 ($23.46) More Pricing...

Restricted Item
Add
Min: 1 Mult: 1
0.7°C/W TO-3 120.7mm 66.7mm 76.2mm - Aluminium 4.75" 2.63" 3" - -
441K
441K - HEAT SINK

1591939

HEAT SINK

WAKEFIELD SOLUTIONS

External Width - Metric 120.7mm
External Height - Metric 114.3mm
External Length - Metric 140mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

  • 18 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 19/10/20

Thermal Resistance -
Packages Cooled -
External Width - Metric 120.7mm
External Height - Metric 114.3mm
External Length - Metric 140mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 4.5"
External Length - Imperial 5.5"
External Diameter - Imperial -
Product Range -

18 total stock globally

1+ $68.01 ($78.21) Price (Incl GST) 10+ $64.01 ($73.61) Price (Incl GST) 25+ $62.40 ($71.76) Price (Incl GST) 50+ $61.36 ($70.56) Price (Incl GST) 100+ $58.28 ($67.02) Price (Incl GST) 250+ $55.89 ($64.27) Price (Incl GST) More Pricing...

Qty

Each

1+ $68.01 ($78.21) 10+ $64.01 ($73.61) 25+ $62.40 ($71.76) 50+ $61.36 ($70.56) 100+ $58.28 ($67.02) 250+ $55.89 ($64.27) More Pricing...

Restricted Item
Add
Min: 1 Mult: 1
- - 120.7mm 114.3mm 140mm - Aluminium 4.75" 4.5" 5.5" - -
403K
403K - HEAT SINK, NATURAL CONVECTION, 55°C @ 30W

1591861

HEAT SINK, NATURAL CONVECTION, 55°C @ 30W

WAKEFIELD SOLUTIONS

Thermal Resistance 1.83°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK, NATURAL CONVECTION, 55°C @ 30W

+ Check Stock & Lead Times

  • 149 available for 5 - 6 business days delivery: (US stock) Order before 20:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 23/11/20

Thermal Resistance 1.83°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 31.8mm
External Length - Metric 76.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 1.25"
External Length - Imperial 3"
External Diameter - Imperial -
Product Range -

149 total stock globally

1+ $21.73 ($24.99) Price (Incl GST) 10+ $20.52 ($23.60) Price (Incl GST) 25+ $19.32 ($22.22) Price (Incl GST) 50+ $18.12 ($20.84) Price (Incl GST) 100+ $16.90 ($19.44) Price (Incl GST) 250+ $15.71 ($18.07) Price (Incl GST) More Pricing...

Qty

Each

1+ $21.73 ($24.99) 10+ $20.52 ($23.60) 25+ $19.32 ($22.22) 50+ $18.12 ($20.84) 100+ $16.90 ($19.44) 250+ $15.71 ($18.07) More Pricing...

Restricted Item
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Min: 1 Mult: 1
1.83°C/W TO-3 120.7mm 31.8mm 76.2mm - Aluminium 4.75" 1.25" 3" - -
423-K.
423-K. - Heat Sink, Extruded Heat Sinks, High Power, 0.95 °C/W, TO-3, 120.7 mm, 66.7 mm, 140.2 mm

3354155

Heat Sink, Extruded Heat Sinks, High Power, 0.95 °C/W, TO-3, 120.7 mm, 66.7 mm, 140.2 mm

WAKEFIELD SOLUTIONS

Thermal Resistance 0.95°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

Heat Sink, Extruded Heat Sinks, High Power, 0.95 °C/W, TO-3, 120.7 mm, 66.7 mm, 140.2 mm

+ Check Stock & Lead Times

More stock available week commencing 26/10/20 Contact me when back in stock
Thermal Resistance 0.95°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 66.7mm
External Length - Metric 140.2mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 2.63"
External Length - Imperial 5.52"
External Diameter - Imperial -
Product Range -

N/A

1+ $41.66 ($47.91) Price (Incl GST) 10+ $39.37 ($45.28) Price (Incl GST) 25+ $37.03 ($42.58) Price (Incl GST) 50+ $34.72 ($39.93) Price (Incl GST) 100+ $32.42 ($37.28) Price (Incl GST) 250+ $30.10 ($34.62) Price (Incl GST) More Pricing...

Qty

Each

1+ $41.66 ($47.91) 10+ $39.37 ($45.28) 25+ $37.03 ($42.58) 50+ $34.72 ($39.93) 100+ $32.42 ($37.28) 250+ $30.10 ($34.62) More Pricing...

Restricted Item
Add
Min: 1 Mult: 1
0.95°C/W TO-3 120.7mm 66.7mm 140.2mm - Aluminium 4.75" 2.63" 5.52" - -
423K
423K - HEAT SINK

1591903

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 0.94°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

More stock available week commencing 23/11/20 Contact me when back in stock
Thermal Resistance 0.94°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 66.7mm
External Length - Metric 140mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 2.63"
External Length - Imperial 5.52"
External Diameter - Imperial -
Product Range -

N/A

1+ $41.66 ($47.91) Price (Incl GST) 10+ $39.37 ($45.28) Price (Incl GST) 25+ $37.03 ($42.58) Price (Incl GST) 50+ $34.72 ($39.93) Price (Incl GST) 100+ $32.42 ($37.28) Price (Incl GST) 250+ $30.10 ($34.62) Price (Incl GST) More Pricing...

Qty

Each

1+ $41.66 ($47.91) 10+ $39.37 ($45.28) 25+ $37.03 ($42.58) 50+ $34.72 ($39.93) 100+ $32.42 ($37.28) 250+ $30.10 ($34.62) More Pricing...

Restricted Item
Add
Min: 1 Mult: 1
0.94°C/W TO-3 120.7mm 66.7mm 140mm - Aluminium 4.75" 2.63" 5.52" - -
433K
433K - HEAT SINK

1591496

HEAT SINK

WAKEFIELD SOLUTIONS

Thermal Resistance 0.84°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm

+ See all product info

WAKEFIELD SOLUTIONS 

HEAT SINK

+ Check Stock & Lead Times

More stock available week commencing 19/10/20 Contact me when back in stock
Thermal Resistance 0.84°C/W
Packages Cooled TO-3
External Width - Metric 120.7mm
External Height - Metric 76.2mm
External Length - Metric 140mm
External Diameter - Metric -
Heat Sink Material Aluminium
External Width - Imperial 4.75"
External Height - Imperial 3"
External Length - Imperial 5.5"
External Diameter - Imperial -
Product Range -

N/A

50+ $46.78 ($53.80) Price (Incl GST) 100+ $45.09 ($51.85) Price (Incl GST)

Qty

Each

50+ $46.78 ($53.80) 100+ $45.09 ($51.85)

Restricted Item
Add
Min: 50 Mult: 50
0.84°C/W TO-3 120.7mm 76.2mm 140mm - Aluminium 4.75" 3" 5.5" - -