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With fins oriented vertically in cabinet sidewall applications, 401 and 403 Series heat sinks are recommended for critical space applications where maximum heat dissipation is required for high-power TO-3 case styles. Forced convection performance is also exemplary with these double surface fin types. Semiconductor mounting hole style F offers a single centered 0.270 in. (6.9)-diameter mounting hole (with a 0.750 in. (19.1)-diameter area free of anodize) for mounting stud-type diodes and rectifiers. Hole pattern V available upon request. Material: Aluminum Alloy, Black Anodized.

Application	Power Semiconductors
Brand/Series	403 Series
Color	Black
Configuration	Vertical
Convection, Forced	0.9°C/W @ 250 LFM
Convection, Natural	55°C @ 30 W
Dimensions	4.75 x 1.25 in.
Finish	Black Anodized
For Use With	TO-3
Material	Aluminum
Mounting Style	Vertical
Package Type	TO-3
Primary Type	TO-3/Stud Mount
Resistance, Thermal	0.9 °C/W
Special Features	Extruded Heat Sink, Double-Surface
Thermal Resistance	0.9 °C/W
Type	Double-Surface
Weight	158.76 g
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• Amphenol Sine/Tuchel
  connector, circular din, female panel recept, front mt, 3din silver-pltd solder cont
  
  型号：T 3263 009
  仓库库存编号：70013380
  
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• HVCA
  DIODE; 1 A (MAX.) @ 25C IF; 1.1 V (MAX.) @ 25C; 5 UADC (MAX.) @ 25C IR
  
  型号：1N4001
  仓库库存编号：70015967
  
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• Edwards Signaling
  ADAPTAHORN GRILLE 125V DC
  
  型号：875-P1
  仓库库存编号：70016479
  
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• Ohmite
  Kit, Resistor, Mounting, Thru-Bolt; 9.5In Long
  
  型号：7PA160E
  仓库库存编号：70022590
  
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• Ohmite
  Resistor; Wirewound; Res 25 Ohms; Pwr-Rtg 175 W; Tol 10%; Lug; Adjustable Tubular
  
  型号：D175K25RE
  仓库库存编号：70022669
  
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• 
  
• American Power Conversion (APC)
  UPS; SMART-UPS; LCD; 2700 WATTS; 3000VA; 120V; RS-232 CBL; USB CBL
  
  型号：SMT3000
  仓库库存编号：70125201
  
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• Crydom
  Relay; SSR; Gen Purp; SPST-NO; Cur-Rtg 10A; Ctrl-V 3-10DC; Vol-Rtg 0-60DC; PCB Mnt; UL
  
  型号：CMX60D10
  仓库库存编号：70131384
  
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Application Power Semiconductors  Wakefield Application Power Semiconductors  Heatsinks Application Power Semiconductors  Wakefield Heatsinks Application Power Semiconductors   Brand/Series 403 Series  Wakefield Brand/Series 403 Series  Heatsinks Brand/Series 403 Series  Wakefield Heatsinks Brand/Series 403 Series   Color Black  Wakefield Color Black  Heatsinks Color Black  Wakefield Heatsinks Color Black   Configuration Vertical  Wakefield Configuration Vertical  Heatsinks Configuration Vertical  Wakefield Heatsinks Configuration Vertical   Convection, Forced 0.9°C/W @ 250 LFM  Wakefield Convection, Forced 0.9°C/W @ 250 LFM  Heatsinks Convection, Forced 0.9°C/W @ 250 LFM  Wakefield Heatsinks Convection, Forced 0.9°C/W @ 250 LFM   Convection, Natural 55°C @ 30 W  Wakefield Convection, Natural 55°C @ 30 W  Heatsinks Convection, Natural 55°C @ 30 W  Wakefield Heatsinks Convection, Natural 55°C @ 30 W   Dimensions 4.75 x 1.25 in.  Wakefield Dimensions 4.75 x 1.25 in.  Heatsinks Dimensions 4.75 x 1.25 in.  Wakefield Heatsinks Dimensions 4.75 x 1.25 in.   Finish Black Anodized  Wakefield Finish Black Anodized  Heatsinks Finish Black Anodized  Wakefield Heatsinks Finish Black Anodized   For Use With TO-3  Wakefield For Use With TO-3  Heatsinks For Use With TO-3  Wakefield Heatsinks For Use With TO-3   Material Aluminum  Wakefield Material Aluminum  Heatsinks Material Aluminum  Wakefield Heatsinks Material Aluminum   Mounting Style Vertical  Wakefield Mounting Style Vertical  Heatsinks Mounting Style Vertical  Wakefield Heatsinks Mounting Style Vertical   Package Type TO-3  Wakefield Package Type TO-3  Heatsinks Package Type TO-3  Wakefield Heatsinks Package Type TO-3   Primary Type TO-3/Stud Mount  Wakefield Primary Type TO-3/Stud Mount  Heatsinks Primary Type TO-3/Stud Mount  Wakefield Heatsinks Primary Type TO-3/Stud Mount   Resistance, Thermal 0.9 °C/W  Wakefield Resistance, Thermal 0.9 °C/W  Heatsinks Resistance, Thermal 0.9 °C/W  Wakefield Heatsinks Resistance, Thermal 0.9 °C/W   Special Features Extruded Heat Sink, Double-Surface  Wakefield Special Features Extruded Heat Sink, Double-Surface  Heatsinks Special Features Extruded Heat Sink, Double-Surface  Wakefield Heatsinks Special Features Extruded Heat Sink, Double-Surface   Thermal Resistance 0.9 °C/W  Wakefield Thermal Resistance 0.9 °C/W  Heatsinks Thermal Resistance 0.9 °C/W  Wakefield Heatsinks Thermal Resistance 0.9 °C/W   Type Double-Surface  Wakefield Type Double-Surface  Heatsinks Type Double-Surface  Wakefield Heatsinks Type Double-Surface   Weight 158.76 g  Wakefield Weight 158.76 g  Heatsinks Weight 158.76 g  Wakefield Heatsinks Weight 158.76 g