參數(shù)資料
          型號(hào): MJE15030BU
          廠商: ON SEMICONDUCTOR
          元件分類: 功率晶體管
          英文描述: 8 A, 150 V, NPN, Si, POWER TRANSISTOR
          封裝: PLASTIC, TO-220AB, 3 PIN
          文件頁數(shù): 11/61頁
          文件大?。?/td> 408K
          代理商: MJE15030BU
          Surface Mount Package Information and Tape and Reel Specifications
          4–2
          Motorola Bipolar Power Transistor Device Data
          INFORMATION FOR USING SURFACE MOUNT PACKAGES
          RECOMMENDED FOOTPRINTS FOR SURFACE MOUNTED APPLICATIONS
          Surface mount board layout is a critical portion of the total
          design. The footprint for the semiconductor packages must
          be the correct size to ensure proper solder connection inter-
          face between the board and the package. With the correct
          pad geometry, the packages will self align when subjected to
          a solder reflow process.
          POWER DISSIPATION FOR A SURFACE MOUNT DEVICE
          The values for the equation are found in the maximum
          ratings table on the data sheet. Substituting these values into
          the equation for an ambient temperature TA of 25°C, one can
          calculate the power dissipation of the device. For example,
          for a D2PAK, PD is calculated as follows.
          PD =
          150
          °C – 25°C
          50
          °C/W
          = 2.5 watts
          The 50
          °C/W for the D2PAK package assumes the use of
          the recommended footprint on a glass epoxy printed circuit
          board to achieve a power dissipation of 2.5 watts. There are
          other alternatives to achieving higher power dissipation from
          the surface mount packages. One is to increase the area of
          the drain/collector pad. By increasing the area of the drain/
          collector pad, the power dissipation can be increased.
          Although the power dissipation can almost be doubled with
          this method, area is taken up on the printed circuit board
          which can defeat the purpose of using surface mount
          technology. For example, a graph of R
          θJA versus drain pad
          area is shown in Figures 1 and 2.
          Another alternative would be to use a ceramic substrate or
          an aluminum core board such as Thermal Clad
          . Using a
          board material such as Thermal Clad, an aluminum core
          board, the power dissipation can be doubled using the same
          footprint.
          DPAK
          0.19
          0
          4.82
          6
          mm
          inches
          0.10
          0
          2.54
          0.063
          1.6
          0.165
          4.191
          0.118
          3.0
          0.243
          6.172
          D2PAK
          mm
          inches
          0.33
          8.38
          0.08
          2.032
          0.04
          1.016
          0.63
          17.02
          0.42
          10.6
          6
          0.1
          2
          3.0
          5
          0.24
          6.096
          1.75 Watts
          Board Material = 0.0625
          G–10/FR–4, 2 oz Copper
          80
          100
          60
          40
          20
          10
          8
          6
          4
          2
          0
          3.0 Watts
          5.0 Watts
          TA = 25°C
          A, AREA (SQUARE INCHES)
          T
          O
          AMBIENT
          (
          C/W)°
          R
          JA
          ,T
          HERM
          AL
          RESIS
          TA
          NCE,
          JUNC
          T
          ION
          θ
          Figure 1. Thermal Resistance versus Drain Pad
          Area for the DPAK Package (Typical)
          Figure 2. Thermal Resistance versus Drain Pad
          Area for the D2PAK Package (Typical)
          2.5 Watts
          A, AREA (SQUARE INCHES)
          Board Material = 0.0625
          G–10/FR–4, 2 oz Copper
          TA = 25°C
          60
          70
          50
          40
          30
          20
          16
          14
          12
          10
          8
          6
          4
          2
          0
          3.5 Watts
          5 Watts
          T
          O
          AMBIENT
          (
          C/W)°
          R
          JA
          ,T
          HERM
          AL
          RESIS
          TA
          NCE,
          JUNC
          T
          ION
          θ
          相關(guān)PDF資料
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          參數(shù)描述
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