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ZMM5259B Folha de dados(PDF) 4 Page - Weitron Technology |
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ZMM5259B Folha de dados(HTML) 4 Page - Weitron Technology |
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4 / 4 page ![]() ZMM5221B thru ZMM5262B WE IT R ON WEITRON http//www.weitron.com.tw 500 400 300 200 100 0 0 40 80 120 160 200 TA, AMBIENT TEMPERATURE FIG 1, Power Dissipation vs Ambient Temperature VZ, ZENER VOLTAGE (V) Fig 2., Junction Capacitance vs Zener Voltage VR=2.0V TJ=25 C 0 5 10 15 20 25 200 150 100 50 0 VZ, ZENER VOLTAGE (V) FIG 3, DIFFERENTIAL ZENER IMPEDANCE 1000 100 10 1 0 5 10 15 20 25 Iz=1.0 mA 5.0 mA 10 mA Tj=25 C R JA R JA (1)=r(1) R JA = 300K/W P(pk) t1 t2 R JA TJ-TA=Ppk Duty Cycle, D=t1/t2 D=0.5 0.2 0.1 0.05 0.02 0.01 t1, SQUARE WAVE PULSE DURATION (seconds) Fig 4 ,Typical Normallzed Transient Thermal Impedance Curves 1000 100 10 1.0 0.1 1.0 10 100 1000 |
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