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TC1N957B 데이터시트(PDF) 2 Page - Tak Cheong Electronics (Holdings) Co.,Ltd |
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TC1N957B 데이터시트(HTML) 2 Page - Tak Cheong Electronics (Holdings) Co.,Ltd |
2 / 3 page November 2006/ B Page 2 SEMICONDUCTOR TAK CHEONG ® Electrical Characteristics TA = 25°C unless otherwise noted Device Type VZ @ IZT (Volts) Nominal IZT (mA) ZZT @ IZT ( Ω) Max ZZK @ IZK = 0.25mA ( Ω) Max IR @ VR ( µA) Max VR (Volts) TC1N977B 47 2.7 105 1500 5 35.8 TC1N978B 51 2.5 125 1500 5 38.8 TC1N979B 56 2.2 150 2000 5 42.6 VF Forward Voltage = 1.5 V Maximum @ IF = 200 mA for all types Notes: 1. TOLERANCE AND VOLTAGE DESIGNATION The type numbers listed have zener voltage as shown and have a standard tolerance on the nominal zener voltage of ±5%. Suffix A = ±10%, Suffix C = ±2% and D = ±1%. 2. SPECIALS AVAILABLE INCLUDE Nominal zener voltages between the voltages shown and tighter voltage, for detailed information on price, availability and delivery, contact you nearest Tak Cheong representative. 3. ZENER VOLTAGE (VZ) MEASUREMENT The zener voltage (VZ) is tested under pulse condition. The measured VZ is guaranteed to be within specification with device junction in thermal equilibrium. 4. ZENER IMPEDANCE (ZZ) DERIVATION Zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an RMS value equal to 10% of the dc zener current (IZT) is superimposed to IZT . |
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