貼片保險絲PTC技術支持

    萬和”自恢復保險絲(貼片式)SMD技術支持

    WHSMD Technical Support

    符號定義 Definition

    符號Sign 說明 Definition
    Vmax WHSMD在阻斷狀態下所承受的最大電壓 Maximum voltage device can withstand without damage at it rated current
    Imax WHSMD能承受的最大電流 Maximum fault current device can withstand without damage at rated voltage
    Ih WHSMD在25℃靜止空氣的的最大工作電流 Hold current-maximum current at which the device will not trip at 25℃ still air
    It WHSMD在25℃靜止空氣中啟動保護的最小電流 Trip current-minimum current at which the device will always trip at still air
    Pd WHSMD在25℃靜止空氣中動作時消耗的功率 Power dissipation when device is in the tripped state at 25℃ still air environment at rated voltage
    Rmin WHSMD在工作前的初始最小阻值 Minimum device resistance at 25℃ prior to tripping
    R1max WHSMD回流焊后在25℃靜止空氣中冷卻1小時后的最大電阻值 Maximum resistance of device at 25℃ measured one hour post reflow

    測試項目 Test

    測試項目 測試方法條件 電阻變化
    Test Conditions Resistance change
    高溫老化 85℃,1000小時 典型±10%
    Passive aging +85℃,1000hrs ±10% typical
    濕熱老化 85℃,相對濕度85%,168小時 典型±10%
    Humidity aging +85℃,85%R.H.,168hrs ±10% typical
    熱沖擊 -40℃到85℃,20次 典型±33%
    Thermal shock +85℃ to -40℃,20 times ±33% typical
    耐溶劑性能 MIL-STD-202,方法215 無變化
    Resistance to solvent MIL-STD-202,Method 215 No change
    抗震性 MIL-STD-202,方法201 無變化
    Vibration MIL-STD-202,Method 201 No change
    工作溫度范圍:-40℃~+85℃
    Ambient operating conditions: -40℃ to +85℃
    產品保護狀態下表面最高溫度為125℃
    Maximum surface temperature of the device in the tripped state is 125℃
    EIA標準載帶尺寸圖和標準載盆樣圖

    載盤參數 Tape and Reel Specifications (mm)

    WHSMD 2920Series 1812Series 1210Series 1206Series 0805Series
    Sign EIA 481-1
    W 16.0±0.3 12.0±0.3 8.0±0.2 8.15±0.2 8.0±0.2
    P0 4.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10
    P1 8.0±0.10 8.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10
    P2 2.0±0.05 2.0±0.05 2.0±0.05 2.0±0.05 2.0±0.05
    A0 5.74±0.10 3.55±0.10 2.82±0.10 1.95±0.10 1.45±0.10
    B0 8.02±0.10 5.10±0.15 3.46±0.10 3.45±0.10 2.30±0.10
    D0 1.55±0.05 1.55±0.05 1.55±0.05 1.55±0.05 1.60±0.05
    F 7.5±0.10 5.5±0.05 3.5±0.05 3.5±0.05 3.5±0.05
    E1 1.75±0.10 1.75±0.10 1.75±0.10 1.75±0.10 1.75±0.10
    T 0.22±0.05 0.22±0.05 0.22±0.05 0.22±0.05 0.22±0.05
    K0 0.87±0.10 0.87±0.10 0.87±0.10 0.87±0.10 0.91±0.10
    1.02±0.10 1.04±0.10 1.02±0.10 1.02±0.10 1.30±0.10
    1.50±0.10 1.50±0.10 1.50±0.10 1.50±0.10  
    Amax 178 178 178 178 178
    Nmin 50 50 50 50 50
    W2 16.5±1.0 13.4±1.0 9.0±0.5 9.0±0.5 9.0±0.5
    W1max 22.4 19.4 13.1 13.1 13.1

    包裝數量 Packing

    2920
    Series
    Pcs/Reel 1812
    Series
    Pcs/Reel 1210
    Series
    Pcs/Reel 1206
    Series
    Pcs/Reel 0805
    Series
    Pcs/Reel
    2920-030 2000 1812-010 2000 1210-005 4500 1206-005 5000 0805-005 5000
    2920-050 2000 1812-014 2000 1210-010 4500 1206-010 5000 0805-010 5000
    2920-075 2000 1812-020 2000 1210-020 4500 1206-020 5000 0805-020 5000
    2920-100 2000 1812-030 2000 1210-035 4500 1206-025 5000 0805-025 5000
    2920-125 2000 1812-050 2000 1210-050 4500 1206-035 5000 0805-035 5000
    2920-150 2000 1812-075 2000 1210-075 4500 1206-050 5000 0805-050 5000
    2920-185 2000 1812-110 2000 1210-110 4500 1206-075 5000 0805-075 3000
    2920-200 2000 1812-125 2000 1210-150 3500 1206-100 3500 0805-100 3000
    2920-250 2000 1812-150 2000 1210-200 3000 1206-110 3500 0805-110 3000
    2920-260 2000 1812-160 2000 1210-260 3000 1206-150 3000 - -
    2920-300 2000 1812-200 2000 - - 1206-200 3000 - -
    - - 1812-260 2000 - - 1206-260 3000 - -
    - - 1812-300 1500 - - - - - -

    SMD2920  SMD1812  SMD1210  SMD1206  SMD0805

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    • 文章出處 - 萬瑞和電子 | 作者 - 管理員 | 人氣 - | 發表時間 - 2013-09-26 09:20:43
    • 萬和”自恢復保險絲(貼片式)SMD技術支持

      WHSMD Technical Support

      符號定義 Definition

      符號Sign 說明 Definition
      Vmax WHSMD在阻斷狀態下所承受的最大電壓 Maximum voltage device can withstand without damage at it rated current
      Imax WHSMD能承受的最大電流 Maximum fault current device can withstand without damage at rated voltage
      Ih WHSMD在25℃靜止空氣的的最大工作電流 Hold current-maximum current at which the device will not trip at 25℃ still air
      It WHSMD在25℃靜止空氣中啟動保護的最小電流 Trip current-minimum current at which the device will always trip at still air
      Pd WHSMD在25℃靜止空氣中動作時消耗的功率 Power dissipation when device is in the tripped state at 25℃ still air environment at rated voltage
      Rmin WHSMD在工作前的初始最小阻值 Minimum device resistance at 25℃ prior to tripping
      R1max WHSMD回流焊后在25℃靜止空氣中冷卻1小時后的最大電阻值 Maximum resistance of device at 25℃ measured one hour post reflow

      測試項目 Test

      測試項目 測試方法條件 電阻變化
      Test Conditions Resistance change
      高溫老化 85℃,1000小時 典型±10%
      Passive aging +85℃,1000hrs ±10% typical
      濕熱老化 85℃,相對濕度85%,168小時 典型±10%
      Humidity aging +85℃,85%R.H.,168hrs ±10% typical
      熱沖擊 -40℃到85℃,20次 典型±33%
      Thermal shock +85℃ to -40℃,20 times ±33% typical
      耐溶劑性能 MIL-STD-202,方法215 無變化
      Resistance to solvent MIL-STD-202,Method 215 No change
      抗震性 MIL-STD-202,方法201 無變化
      Vibration MIL-STD-202,Method 201 No change
      工作溫度范圍:-40℃~+85℃
      Ambient operating conditions: -40℃ to +85℃
      產品保護狀態下表面最高溫度為125℃
      Maximum surface temperature of the device in the tripped state is 125℃
      EIA標準載帶尺寸圖和標準載盆樣圖

      載盤參數 Tape and Reel Specifications (mm)

      WHSMD 2920Series 1812Series 1210Series 1206Series 0805Series
      Sign EIA 481-1
      W 16.0±0.3 12.0±0.3 8.0±0.2 8.15±0.2 8.0±0.2
      P0 4.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10
      P1 8.0±0.10 8.0±0.10 4.0±0.10 4.0±0.10 4.0±0.10
      P2 2.0±0.05 2.0±0.05 2.0±0.05 2.0±0.05 2.0±0.05
      A0 5.74±0.10 3.55±0.10 2.82±0.10 1.95±0.10 1.45±0.10
      B0 8.02±0.10 5.10±0.15 3.46±0.10 3.45±0.10 2.30±0.10
      D0 1.55±0.05 1.55±0.05 1.55±0.05 1.55±0.05 1.60±0.05
      F 7.5±0.10 5.5±0.05 3.5±0.05 3.5±0.05 3.5±0.05
      E1 1.75±0.10 1.75±0.10 1.75±0.10 1.75±0.10 1.75±0.10
      T 0.22±0.05 0.22±0.05 0.22±0.05 0.22±0.05 0.22±0.05
      K0 0.87±0.10 0.87±0.10 0.87±0.10 0.87±0.10 0.91±0.10
      1.02±0.10 1.04±0.10 1.02±0.10 1.02±0.10 1.30±0.10
      1.50±0.10 1.50±0.10 1.50±0.10 1.50±0.10  
      Amax 178 178 178 178 178
      Nmin 50 50 50 50 50
      W2 16.5±1.0 13.4±1.0 9.0±0.5 9.0±0.5 9.0±0.5
      W1max 22.4 19.4 13.1 13.1 13.1

      包裝數量 Packing

      2920
      Series
      Pcs/Reel 1812
      Series
      Pcs/Reel 1210
      Series
      Pcs/Reel 1206
      Series
      Pcs/Reel 0805
      Series
      Pcs/Reel
      2920-030 2000 1812-010 2000 1210-005 4500 1206-005 5000 0805-005 5000
      2920-050 2000 1812-014 2000 1210-010 4500 1206-010 5000 0805-010 5000
      2920-075 2000 1812-020 2000 1210-020 4500 1206-020 5000 0805-020 5000
      2920-100 2000 1812-030 2000 1210-035 4500 1206-025 5000 0805-025 5000
      2920-125 2000 1812-050 2000 1210-050 4500 1206-035 5000 0805-035 5000
      2920-150 2000 1812-075 2000 1210-075 4500 1206-050 5000 0805-050 5000
      2920-185 2000 1812-110 2000 1210-110 4500 1206-075 5000 0805-075 3000
      2920-200 2000 1812-125 2000 1210-150 3500 1206-100 3500 0805-100 3000
      2920-250 2000 1812-150 2000 1210-200 3000 1206-110 3500 0805-110 3000
      2920-260 2000 1812-160 2000 1210-260 3000 1206-150 3000 - -
      2920-300 2000 1812-200 2000 - - 1206-200 3000 - -
      - - 1812-260 2000 - - 1206-260 3000 - -
      - - 1812-300 1500 - - - - - -
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