1SMF5920B 2.5 Watt Zener Diode in Flat Lead Package This complete new line of 2.5 Watt Zener Diodes are offered in highly efficient micro miniature and space saving surface mount design. Because of its small size, it is ideal for use in cellular phones, 1SMF5920B MAXIMUM RATINGS Rating Symbol Value Unit DC Power Dissipation T = 25C (Note 1) P 350 mW A D Derate above 25C 2.9 mW/C Thermal Resistance, JunctiontoAmbient R 350 C/W JA Thermal Resistance, JunctiontoLead R 30 C/W JL Maximum DC Power Dissipation (Notes 1 and 2) P 2.5 W D Operating and Storage Temperature Range T , T 55 to +150 C J stg Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Mounted with recommended minimum pad size, PC board FR4. 2. At lead temperature 75C ELECTRICAL CHARACTERISTICS (T = 25C unless A I otherwise noted, V = 1.5 V Max. I = 200 mA for all F F I F types) Symbol Parameter I Maximum Reverse Peak Pulse Current PP V Clamping Voltage I C PP V V V C BR RWM V I V Working Peak Reverse Voltage V R F RWM I T I Maximum Reverse Leakage Current V R RWM V Breakdown Voltage I BR T I Test Current T I PP I Forward Current F V Forward Voltage I UniDirectional TVS F F ELECTRICAL CHARACTERISTICS (T = 30C unless otherwise noted, V = 1.25 Volts 200 mA) L F Zener Voltage (Note 3) Z I Z I ZT ZT ZK ZK V I (Volts) (Note 4) (Note 4) I I V V I Z ZT ZT R R R ZK Device Marking Min Nom Max (mA) ( A) (V) ( ) ( ) (mA) Device 1SMF5920BT1G 5Y2 5.89 6.2 6.51 60.5 5.0 4.0 2.0 200 1.0 Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 3. Zener voltage is measured with the device junction in thermal equilibrium with an ambient temperature of 25C. 4. Zener Impedance Derivation Z and Z are measured by dividing the AC voltage drop across the device by the AC current applied. The ZT ZK specified limits are for I (ac) = 0.1 I (dc) with the ac frequency = 60 Hz. Z Z