CDI-DIODE CDLL4778 Temperature compensated zener reference diode Datasheet

• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
CDLL4775
thru
• LEADLESS PACKAGE FOR SURFACE MOUNT
• 8.5 VOLT NOMINAL ZENER VOLTAGE + 5%
CDLL4784A
• LOW CURRENT RANGE: 0.5 TO 1.0 mA
• METALLURGICALLY BONDED
• DOUBLE PLUG CONSTRUCTION
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4 mW / °C above +50°C
REVERSE LEAKAGE CURRENT
lR = 10µ A @ 25°C & VR = 6Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI
TYPE
NUMBER
ZENNER
VOLTAGE
VZ @ I ZT
ZENER
TEST
CURRENT
I ZT
MAXIMUM
VOLTAGE
TEMPERATURE
DYNAMIC TEMPERATURE
RANGE
IMPEDANCE
STABILITY
ZZT
∆ V ZT
EFFECTIVE
TEMPERATURE
COEFFICIENT
MAXIMUM
(Note 3)
(Note 1)
(Note 2)
°C
% / °C
DIM
D
F
G
G1
S
MILLIMETERS
INCHES
MIN MAX MIN MAX
1.60
1.70 0.063 0.067
0.41
0.55 0.016 0.022
3.30
3.70 .130 .146
2.54 REF.
.100 REF.
0.03 MIN.
.001 MIN.
VOLTS
mA
OHMS
mV
CDLL4775
CDLL4775A
CDLL4776
CDLL4776A
8.5
8.5
8.5
8.5
0.5
0.5
0.5
0.5
200
200
200
200
64
132
32
66
0
-55
0
-55
to
to
to
to
+
+
+
+
75
100
75
100
0.01
0.01
0.005
0.005
CDLL4777
CDLL4777A
CDLL4778
CDLL4778A
8.5
8.5
8.5
8.5
0.5
0.5
0.5
0.5
200
200
200
200
13
26
6.4
13
0
-55
0
-55
to
to
to
to
+
+
+
+
75
100
75
100
0.002
0.002
0.001
0.001
DESIGN DATA
CDLL4779
CDLL4779A
CDLL4780
CDLL4780A
8.5
8.5
8.5
8.5
0.5
0.5
1.0
1.0
200
200
100
100
3.2
6.6
64
132
0
-55
0
-55
to
to
to
to
+
+
+
+
75
100
75
100
0.0005
0.0005
0.01
0.01
CASE: DO-213AA, Hermetically sealed
glass case. (MELF, SOD-80, LL34)
CDLL4781
CDLL4781A
CDLL4782
CDLL4782A
8.5
8.5
8.5
8.5
1.0
1.0
1.0
1.0
100
100
100
100
32
66
13
26
0
-55
0
-55
to
to
to
to
+
+
+
+
75
100
75
100
0.005
0.005
0.002
0.002
CDLL4783
CDLL4783A
CDLL4784
CDLL4784A
8.5
8.5
8.5
8.5
1.0
1.0
1.0
1.0
100
100
100
100
6.4
13
3.2
6.6
0
-55
0
-55
to
to
to
to
+
+
+
+
75
100
75
100
0.01
0.01
0.0005
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.
FIGURE 1
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.
.
NOTE 3
Zener voltage range equals 8.5 volts +5%
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: [email protected]
CDLL4775
thru
CDLL4784A
Pd, Rated Power
Dissipation (mW)
600
500
400
300
200
100
0
0
25
50
75
100
125
150
175
TL, Ambient temperature (°C)
FIGURE 2
POWER DERATING CURVE
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
0.5
1.0
1.5
OPERATING CURRENT lZT (mA)
2.0
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT