• 1N3821AUR-1 thru 1N3828AUR-1 AVAILABLE IN JAN, JANTX AND JANTXV PER MIL-PRF-19500/115 • LEADLESS PACKAGE FOR SURFACE MOUNT • DOUBLE PLUG CONSTRUCTION 1N3821AUR-1 thru 1N3828AUR-1 and CDLL3821 thru CDLL 3828A • METALLURGICALLY BONDED MAXIMUM RATINGS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 1 watt @ +TEC = 125°C Power Derating: 20 mW / °C above TEC = 125°C Forward Voltage @ 200mA = 1.2 volts maximum ELECTRICAL CHARACTERISTICS @ 25°C CDI NOMINAL ZENER MAX. DC TYPE ZENER TEST NUMBER VOLTAGE CURRENT MAXIMUM ZENER IMPEDANCE VZ @ 1ZT (NOTE 3) 1ZT ZZT @ 1ZT (NOTE 1) OHMS ZZK @ 1ZK=1mA (NOTE 2) ZENER MAX. REVERSE CURRENT LEAKAGE CURRENT 1ZM lR @ VR VOLTS mA OHMS mA µA VOLTS CDLL3821 CDLL3821A CDLL3822 CDLL3822A 3.3 3.3 3.6 3.6 76 76 69 69 10 10 10 10 400 400 400 400 276 276 252 252 100 100 75 75 1 1 1 1 CDLL3823 CDLL3823A CDLL3824 CDLL3824A 3.9 3.9 4.3 4.3 64 64 58 58 9 9 9 9 400 400 400 400 238 238 213 213 25 25 5 5 1 1 1 1 CDLL3825 CDLL3825A CDLL3826 CDLL3826A 4.7 4.7 5.1 5.1 53 53 49 49 8 8 7 7 500 500 550 550 194 194 178 178 5 5 3 3 1 1 1 1 CDLL3827 CDLL3827A CDLL3828 CDLL3828A 5.6 5.6 6.2 6.2 45 45 41 41 5 5 2 2 600 600 700 700 162 162 146 146 3 3 3 3 2 2 3 3 DIM D F G G1 S MILLIMETERS MIN MAX 2.39 2.66 0.41 0.55 4.80 5.20 4.11 REF. 0.03 MIN. INCHES MIN MAX .094 .105 .016 .022 .189 .205 .159 REF. .001 MIN. FIGURE 1 DESIGN DATA CASE: DO-213AB, Hermetically sealed glass case. (MELF, LL41) LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 50 ˚C/W maximum at L = 0 inch THERMAL IMPEDANCE: (ZOJX): 15 ˚C/W maximum POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: Any. NOTE 1 No suffix = + 10% tolerance on nominal Zener voltage, suffix “A” signifies +5%, "C" suffix signifies + 2% and "D" suffix signifies + 1%. NOTE 2 Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal to 10% of 1ZT. NOTE 3 Zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25°C + 3°C. MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) Of this Device is Approximately +6PPM/°C. The COE of the Mounting Surface System Should Be Selected To Provide A Suitable Match With This Device. 22 COREY STREET, MELROSE, MASSACHUSETTS 02176 PHONE (781) 665-1071 FAX (781) 665-7379 WEBSITE: http://www.cdi-diodes.com E-mail: [email protected] 1N3821AUR-1 thru 1N3828AUR-1 and CDLL3821A thru CDLL3828A 1000 800 600 400 200 0 0 25 50 75 100 125 150 TEC , End cap temperature (°C) POWER DERATING CURVE 1000 ZZT, Zener Impedance (OHMS) Pd, Rated Power Dissipation (mW) FIGURE 2 100 10 1 .1 1.0 10 OPERATING CURRENT lZT (mA) FIGURE 3 ZENER IMPEDANCE VS. OPERATING CURRENT 100 175