CZMA27V SILICON PLANAR VOLTAGE DUAL ZENER DIODE Pin configuration: 1 = CATHODE 2 = CATHODE 3 = ANODE 2 1 3 SOT-23 Formed SMD Package Package Outline Details. ALL DIMENSIONS IN mm ABSOLUTE MAXIMUM RATINGS (per diode) DESCRIPTION SYMBOL Working voltage Vz VALUE UNIT 27 V +/- 5 % Ptot 300 mW Tj 150 RATINGS per diode (at TA = 25 oC unless otherwise specified) Limiting values Repetitive Peak Forward Current IFRM 250 Repetitive Peak Working Current IZRM 250 mA Total Power Dissipation up to T amb = 25oC* Ptot 300 mW Total Power Dissipation up to T amb = 25oC** Ptot 250 mW Junction Temperature Tj 150 o C Storage Temperature Tstg -55 to +150 o C Thermal Resistance From Junction to ambient Rth (j-a) 430 K/W From Junction to ambient Rth (j-a) 500 K/W Working voltage tolerance Total Power Dissipation up to T amb = 25oC Junction Temperature o C mA *Device mounted on a ceramic alumna. **Device mounted on an FR5 circuit board. ELECTRICAL CHARACTERISTICS (Ta = 25oC unless otherwise specified) Device differential temperature working voltage VZ(V)*** at IZ test =2mA CZMA27 resistance coefficient differential resistance reverse current rdif(ohm) at IZ test =2mA SZ (mV/K) at IZ test =2mA rdiff(ohm) at IZ = 0.5mA (nA) IR @ VR Ta =25 oC min max typ max min max typ max max 25.10 28.90 25 80 21.4 25.3 65 300 50 ***Pulse test: 20ms</tp</50ms www.rectron.com V F = max 0.9V @10mA (V) 0.7