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1N4748A 데이터시트(PDF) 5 Page - Yea Shin Technology Co., Ltd |
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1N4748A 데이터시트(HTML) 5 Page - Yea Shin Technology Co., Ltd |
5 / 6 page http://www.yeashin.com 5 REV.03 20121011 1N4728A~1N4764A DEVICE CHARACTERISTICS Figure 2. Temperature Coefficients (-55 °C to +150 °C temperature range; 90% of the units are in the ranges indicated.) a. Range for Units to 12 Volts b. Range for Units to 12 to 100 Volts +12 +10 +8 +6 +4 +2 0 -2 -4 VZ , ZENER VOLTAGE (VOLTS) 100 70 50 30 20 10 7 5 3 2 1 10 20 30 50 70 100 VZ , ZENER VOLTAGE (VOLTS) VZ @I ZT RANGE RANGE V Z @I ZT Figure 3. Typical Thermal Resistance versus Lead Length Figure 4. Effect of Zener Current 175 150 125 100 75 50 25 0 0 0.1 0.2 0.3 0.4 0.5 0.60.7 0.8 0.9 1 L, LEAD LENGTH TO HEAT SINK (INCHES) +6 +4 +2 0 -2 -4 VZ , ZENER VOLTAGE (VOLTS) V Z @ I Z TA 20 mA 0.01 mA 1 mA NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS NOTE: CHANGES IN ZENER CURRENT DO NOT NOTE: EFFECT TEMPERATURE COEFFICIENTS Figure 5. Maximum Surge Power 100 70 50 30 20 10 7 5 3 2 1 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50 100 200 500 1000 PW, PULSE WIDTH (ms) This graph represents 90 percentile data points. For worst case design characteristics, multiply surge power by 2/3. 11 V - 100 V NONREPETITIVE 3.3 V - 10 V NONREPETITIVE 5% DUTY CYCLE 10% DUTY CYCLE 20% DUTY CYCLE RECT ANGULAR WAVEFORM TJ = 25°C PRIOR TO INITIAL PULSE 2 3 4 5 6 78 9 10 11 12 3 4 5 6 78 = 25 °C |
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