幾款二極體、三極體結電容與反向電壓

卓晴發表於2020-10-12

 

➤ 00介紹

在 測量幾個光電感測器反向電容 使用 LC100-A 測量了幾個光電二極體、變容二極體的結電容與反向電壓之間的關係。下面再對於幾個常見到的帶有PN接面的半導體元器件的結電容進行測量。

 

➤ 01測量結果

1. SB3H100

(1) 特性

Diode Schottky 100V 3A 2-Pin DO-201AD T/R
Key Features

■ Guardring for overvoltage protection
■ Low power losses and high efficiency
■ Low forward voltage drop
■ Low leakage current
■ High forward surge capabilitmy
■ High frequency operation
■ Solder dip 275 °C max. 10 s, per JESD 22-B106
■ Maximum repetitive peak reverse voltage: 90V

(2) 測量資料

v=[0.00,0.12,0.24,0.37,0.49,0.61,0.73,0.86,0.98,1.10,1.22,1.35,1.47,1.59,1.71,1.84,1.96,2.08,2.20,2.33,2.45,2.57,2.69,2.82,2.94,3.06,3.18,3.31,3.43,3.55,3.67,3.80,3.92,4.04,4.16,4.29,4.41,4.53,4.65,4.78,4.90,5.02,5.14,5.27,5.39,5.51,5.63,5.76,5.88,6.00]
c=[338.82,309.79,286.87,268.58,264.81,240.86,230.11,226.28,216.22,205.72,199.71,193.66,188.50,186.41,179.48,175.60,172.91,168.51,165.28,164.95,160.14,157.35,155.78,152.13,149.94,147.88,146.43,143.98,142.19,140.45,138.83,137.26,136.52,134.29,132.99,131.61,130.32,129.05,127.87,126.69,125.57,124.51,123.70,122.40,121.42,121.45,119.77,118.64,117.76,116.89]

▲ 結反向電壓與結電容

▲ 結反向電壓與結電容

▲ 電容容量使用對數標度繪製曲線

▲ 電容容量使用對數標度繪製曲線

2.普通整流二極體

v=[0.00,0.12,0.24,0.37,0.49,0.61,0.73,0.86,0.98,1.10,1.22,1.35,1.47,1.59,1.71,1.84,1.96,2.08,2.20,2.33,2.45,2.57,2.69,2.82,2.94,3.06,3.18,3.31,3.43,3.55,3.67,3.80,3.92,4.04,4.16,4.29,4.41,4.53,4.65,4.78,4.90,5.02,5.14,5.27,5.39,5.51,5.63,5.76,5.88,6.00]
c=[30.14,29.08,28.64,27.74,27.29,27.00,26.90,26.49,26.31,26.27,25.87,25.77,25.72,25.57,25.51,25.36,25.19,25.13,25.10,24.97,24.94,24.90,24.76,24.72,24.62,24.60,24.49,24.56,24.46,24.39,24.36,24.32,24.25,24.19,24.25,24.15,24.13,24.08,24.08,24.02,24.00,23.98,23.96,23.91,23.92,23.88,23.85,23.86,23.81,23.78]

▲ 反向電壓與結電容

▲ 反向電壓與結電容

 

➤ ※ 結論

上述測量結果隨著之後的補充會逐步增多的。

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