Product specification 1N5252B DO-35 ■ Features ● 500mW Power Dissipation 1.0 2(26.0) MIN. ● High Stability 0.079(2.0) MAX ● Surface Mount Equivalents Available 0.157 (4.0) MAX 1.0 2(26.0) MIN. 0.024(0.60) MAX Dimensions in inches and (millimeters) ■ Absolute Maximum Ratings Ta = 25℃ Parameter Power Dissipation Symbol Rating Unit PD 500 mW VF 1.1 V RθJA 300 ℃/W Tj 175 ℃ Tstg -55 to +175 ℃ (note 1) Forward Voltage at IF = 200 mA Thermal Resistance Junction to Ambient Air (note 1) Junction temperature Storage temperature range Note: 1. Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. ■ Electrical Characteristics Ta = 25℃ Device 1N5252B Zener Voltage (Note 2) Test Current VZ @ IZT IZT ZZT @ IZT ZZK @ IZK = 0.25mA Ω 33 Ω 600 Min (V) Nom (V) Max (V) mA 22.80 24.0 23.20 5.2 Maximum Zener Impedance Maximum Reverse Current IR @ V R μA 0.1 V 18 Notes: 2. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30℃/W. http://www.twtysemi.com [email protected] 4008-318-123 1 of 2 Product specification 1N5252B Typical Characteristics 1000 0.6 CT, TOTAL CAPACITANCE (pF) Tj = 25 °C PD, POWER DISSIPATION (W) 0.5 0.4 0.3 0.2 100 VR = 1V VR = 2V 0.1 10 10 1 0 0 25 75 50 100 125 100 VZ, NOMINAL ZENER VOLTAGE (V) Fig. 2 Total Capacitance vs Nominal Zener Voltage 150 TA, AMBIENT TEMPERATURE (°C) Fig. 1 Power Dissipation vs Ambient Temperature 50 1000 Tj = 25°C 5V6 6V8 IZ, ZENER CURRENT (mA) 40 IZ = 1.0mA 100 10 8V2 30 20 10 Test Current IZ 20mA 0 1 1 10 100 VZ, NOMINAL ZENER VOLTAGE (V) Fig. 3 Zener Voltage vs. Zener Impedence 30 Tj = 25°C 0 1 2 3 4 5 6 8 7 VZ, ZENER VOLTAGE (V) 9 10 Fig.4 Zener Characteristics Breakdown 10 IZ, ZENER CURRENT (mA) 12 Nominal Zener Voltage 15 20 Test current IZ 18 22 10 27 33 36 39 0 0 10 20 30 VZ, ZENER VOLTAGE (V) Fig.6 Zener Breakdown Characteristics http://www.twtysemi.com 40 [email protected] 4008-318-123 2 of 2