• 1N3821AUR-1 thru 1N3828AUR-1 AVAILABLE IN JAN, JANTX AND JANTXV PER MIL-PRF-19500/115 • LEADLESS PACKAGE FOR SURFACE MOUNT • DOUBLE PLUG CONSTRUCTION • METALLURGICALLY BONDED
1N3821AUR-1 thru 1N3828AUR-1 and CDLL3821 thru CDLL 3828A
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 TYPE NUMBER (NOTE 1) NOMINAL ZENER VOLTAGE VZ @ 1ZT (NOTE 3) VOLTS CDLL3821 CDLL3821A CDLL3822 CDLL3822A CDLL3823 CDLL3823A CDLL3824 CDLL3824A CDLL3825 CDLL3825A CDLL3826 CDLL3826A CDLL3827 CDLL3827A CDLL3828 CDLL3828A 3.3 3.3 3.6 3.6 3.9 3.9 4.3 4.3 4.7 4.7 5.1 5.1 5.6 5.6 6.2 6.2 ZENER TEST CURRENT 1ZT ZZT @ 1ZT ZZK @ 1ZK=1mA (NOTE 2) OHMS 400 400 400 400 400 400 400 400 500 500 550 550 600 600 700 700 MAXIMUM ZENER IMPEDANCE MAX. DC ZENER CURRENT 1ZM MAX. REVERSE LEAKAGE CURRENT lR @ VR
mA 76 76 69 69 64 64 58 58 53 53 49 49 45 45 41 41
OHMS 10 10 10 10 9 9 9 9 8 8 7 7 5 5 2 2
mA 276 276 252 252 238 238 213 213 194 194 178 178 162 162 146 146
µA
100 100 75 75 25 25 5 5 5 5 3 3 3 3 3 3
VOLTS 1 1 1 1 1 1 1 1 1 1 1 1 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 NOTE 2 NOTE 3
No suffix = + 10% tolerance on nominal Zener voltage, suffix “A” signifies +5%, "C" suffix signifies + 2% and "D" suffix signifies + 1%. Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal to 10% of 1ZT. 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
FIGURE 2
1000 800 600 400 200 0 0 25 50 75 100 125 150 175
Pd, Rated Power Dissipation (mW)
TEC , End cap temperature (°C)
POWER DERATING CURVE
1000 ZZT, Zener Impedance (OHMS)
100
10
1 .1 1.0 10 OPERATING CURRENT lZT (mA) 100
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
.