SMD Type Product specification MMBZ5258B SOT-23 Unit: mm +0.1 2.9-0.1 +0.1 0.4-0.1 Features 0.4 3 Ideally Suited for Automated Assembly Processes 1 0.55 General Purpose, Medium Current +0.1 1.3-0.1 +0.1 2.4-0.1 Planar Die Construction 2 +0.1 0.95-0.1 +0.1 1.9-0.1 1.Base 2.Emitter +0.1 0.38-0.1 0-0.1 +0.1 0.97-0.1 +0.05 0.1-0.01 3.collector Absolute Maximum Ratings Ta = 25 Parameter @ IF = 10mA Forward Voltage Power Dissipation *1 Thermal Resistance, Junction to Ambient Air *1 Symbol Rating Unit VF 0.9 V Pd 350 mW 357 /W R JA Tj, TSTG Operating and Storage Temperature Range -65 to +150 *1. Part mounted on FR-4 PC board with recommended pad layout Electrical Characteristics @TA=25 unless otherwise specified Maximum ZenerImpedance *2 Zener Voltage Range *1 Maximum Reverse Leakage Current *1 Type Number Vz @IZT MMBZ5258B IZT Nom (V) Min (V) Max (V) mA 36 34.2 37.8 3.4 ZZT @ IZT ZZK @ IZK= 0.25mA IR uA V 70 700 0.1 27 @ VR *1. Short duration test pulse used to minimize self-heating effect. *2. f = 1KHz. Marking Marking KM3 http://www.twtysemi.com [email protected] 4008-318-123 1 of 3 SMD Type Product specification MMBZ5258B 1000 Tj = 25 °C CT, TOTAL CAPACITANCE (pF) 0.3 0.2 100 VR = 1V VR = 2V 0.1 10 10 1 0 0 25 50 75 100 125 150 100 VZ, NOMINAL ZENER VOLTAGE (V) Fig. 2 Total Capacitance vs Nominal Zener Voltage TA, AMBIENT TEMPERATURE (°C) Fig. 1 Power Dissipation vs Ambient Temperature 100 1000 PPK, PEAK SURGE POWER (W) PD, POWER DISSIPATION (W) 0.4 IZ = 1.0mA 100 10 1 10 1 1 10 100 VZ, NOMINAL ZENER VOLTAGE (V) Fig. 3 Zener Voltage vs. Zener Impedence http://www.twtysemi.com [email protected] 1 10 100 1000 PULSE WIDTH (ms) Fig. 4 Maximum Non-repetitive Surge Power 4008-318-123 2 of 3 SMD Type Product specification MMBZ5258B 50 30 Tj = 25°C Tj = 25°C 10 5V6 12 6V8 IZ, ZENER CURRENT (mA) IZ, ZENER CURRENT (mA) 40 8V2 30 20 10 Test Current IZ 20mA 0 Nominal Zener Voltage 15 20 Test current IZ 18 22 10 27 33 36 39 0 0 1 2 3 4 5 6 8 9 7 VZ, ZENER VOLTAGE (V) Fig. 5 Zener Breakdown Characteristics http://www.twtysemi.com 10 [email protected] 0 10 20 30 VZ, ZENER VOLTAGE (V) Fig. 6 Zener Breakdown Characteristics 4008-318-123 40 3 of 3