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109
FIGURE 1
DESIGN DATA
CASE: DO-213AB, Hermetically sealed
glass case. (MELF, LL41)
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (R
OJEC
): 50
°C/W maximum at L = 0 inch
THERMAL IMPEDANCE: (ZO
JX
): 15
°C/W maximum
POLARITY: Diode to be operated with the
banded (cathode) end positive.
MOUNTING POSITION: Any.
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.
MILLIMETERS INCHES
DIM MIN MAX MIN MAX
D 2.39 2.66 .094 .105
F 0.41 0.55 .016 .022
G 4.80 5.20 .189 .205
G1 4.11 REF. .159 REF.
S 0.03 MIN. .001 MIN.
ELECTRICAL CHARACTERISTICS @ 25°C
CDI NOMINAL ZENER MAX. DC
TYPE ZENER TEST MAXIMUM ZENER IMPEDANCE ZENER MAX. REVERSE
NUMBER VOLTAGE CURRENT CURRENT LEAKAGE CURRENT
V
Z
@1
ZT
1
ZT
Z
ZT
@ 1
ZT
Z
ZK
@ 1
ZK=1mA
1
ZM
l
R
@ V
R
(NOTE 1) (NOTE 3) (NOTE 2)
VOLTS mA OHMS OHMS mA
µ
A VOLTS
CDLL3821 3.3 76 10 400 276 100 1
CDLL3821A 3.3 76 10 400 276 100 1
CDLL3822 3.6 69 10 400 252 75 1
CDLL3822A 3.6 69 10 400 252 75 1
CDLL3823 3.9 64 9 400 238 25 1
CDLL3823A 3.9 64 9 400 238 25 1
CDLL3824 4.3 58 9 400 213 5 1
CDLL3824A 4.3 58 9 400 213 5 1
CDLL3825 4.7 53 8 500 194 5 1
CDLL3825A 4.7 53 8 500 194 5 1
CDLL3826 5.1 49 7 550 178 3 1
CDLL3826A 5.1 49 7 550 178 3 1
CDLL3827 5.6 45 5 600 162 3 2
CDLL3827A 5.6 45 5 600 162 3 2
CDLL3828 6.2 41 2 700 146 3 3
CDLL3828A 6.2 41 2 700 146 3 3
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 1 watt @ +T
EC
= 125°C
Power Derating: 20 mW / °C above T
EC
= 125°C
Forward Voltage @ 200mA = 1.2 volts maximum
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 1
ZT
A 60Hz rms a.c. current equal to
10% of 1
ZT.
NOTE 3 Zener voltage is measured with the device junction in thermal equilibrium at an ambient
temperature of 25°C +
3°C.
• 1N3821AUR-1 thru 1N3828AUR-1 AVAILABLE IN
JAN, JANTX AND JAN-
TXV
PER MIL-PRF-19500/115
• LEADLESS PACKAGE FOR SURFACE MOUNT
• DOUBLE PLUG CONSTRUCTION
1N3821AUR-1
thru
1N3828AUR-1
and
CDLL3821 thru CDLL 3828A
