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            1. 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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              • 貼片保險絲PTC技術支持

              • 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 - - - - - -