22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: mail@cdi-diodes.com
CDI
ZENNER
ZENER
MAXIMUM VOLTAGE
TEMPERATURE EFFECTIVE
TYPE
VOLTAGE
TEST
DYNAMIC
TEMPERATURE
RANGE
TEMPERATURE
NUMBER
CURRENT
IMPEDANCE
STABILITY
COEFFICIENT
VZ @ I ZT
I ZT
ZZT
V ZT
MAXIMUM
(Note 3)
(Note 1)
(Note 2)
VOLTS
mA
OHMS
mV
C
% / C
CDLL4775
8.5
0.5
200
64
0 to + 75
0.01
CDLL4775A
8.5
0.5
200
132
-55 to + 100
0.01
CDLL4776
8.5
0.5
200
32
0 to + 75
0.005
CDLL4776A
8.5
0.5
200
66
-55 to + 100
0.005
CDLL4777
8.5
0.5
200
13
0 to + 75
0.002
CDLL4777A
8.5
0.5
200
26
-55 to + 100
0.002
CDLL4778
8.5
0.5
200
6.4
0 to + 75
0.001
CDLL4778A
8.5
0.5
200
13
-55 to + 100
0.001
CDLL4779
8.5
0.5
200
3.2
0 to + 75
0.0005
CDLL4779A
8.5
0.5
200
6.6
-55 to + 100
0.0005
CDLL4780
8.5
1.0
100
64
0 to + 75
0.01
CDLL4780A
8.5
1.0
100
132
-55 to + 100
0.01
CDLL4781
8.5
1.0
100
32
0 to + 75
0.005
CDLL4781A
8.5
1.0
100
66
-55 to + 100
0.005
CDLL4782
8.5
1.0
100
13
0 to + 75
0.002
CDLL4782A
8.5
1.0
100
26
-55 to + 100
0.002
CDLL4783
8.5
1.0
100
6.4
0 to + 75
0.01
CDLL4783A
8.5
1.0
100
13
-55 to + 100
0.01
CDLL4784
8.5
1.0
100
3.2
0 to + 75
0.0005
CDLL4784A
8.5
1.0
100
6.6
-55 to + 100
0.0005
NOTE 1 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current
equal to 10% of lZT.
NOTE 2 The maximum allowable change observed over the entire temperature range i.e.,
the diode voltage will not exceed the specified mV at any discrete temperature
between the established limits, per JEDEC standard No.5.
.
NOTE 3 Zener voltage range equals 8.5 volts +5%
MAXIMUM RATINGS
Operating Temperature: -65C to +175C
Storage Temperature: -65C to +175C
DC Power Dissipation: 500mW @ +50C
Power Derating: 4 mW / C above +50C
REVERSE LEAKAGE CURRENT
l
R
= 10
A @ 25C & V
R
= 6Vdc
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified.
TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
LEADLESS PACKAGE FOR SURFACE MOUNT
8.5 VOLT NOMINAL ZENER VOLTAGE + 5%
LOW CURRENT RANGE: 0.5 TO 1.0 mA
METALLURGICALLY BONDED
DOUBLE PLUG CONSTRUCTION
CDLL4775
thru
CDLL4784A
MILLIMETERS INCHES
DIM
MIN
MAX
MIN
MAX
D
1.60
1.70
0.063 0.067
F
0.41
0.55
0.016 0.022
G
3.30
3.70
.130
.146
G1
2.54 REF.
.100 REF.
S
0.03 MIN.
.001 MIN.
FIGURE 1
DESIGN DATA
CASE: DO-213AA, Hermetically sealed
glass case. (MELF, SOD-80, LL34)
LEAD FINISH: Tin / Lead
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.
CDLL4775
thru
CDLL4784A
0.5
1.0
1.5
2.0
OPERATING CURRENT lZT (mA)
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
0
25
50
75
100
125
150
175
TL, Ambient temperature (C)
FIGURE 2
POWER DERATING CURVE
600
500
400
300
200
100
0
Pd,
Rated
Power
Dissipation
(mW)
CHANGE
IN
TEMPERA
TURE
COEFFICIENT
(
%/C)
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