• 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
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 (Note 3) VOLTS CDLL4775 CDLL4775A CDLL4776 CDLL4776A CDLL4777 CDLL4777A CDLL4778 CDLL4778A CDLL4779 CDLL4779A CDLL4780 CDLL4780A CDLL4781 CDLL4781A CDLL4782 CDLL4782A CDLL4783 CDLL4783A CDLL4784 CDLL4784A 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 mA 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 ZENER TEST CURRENT I ZT MAXIMUM VOLTAGE TEMPERATURE DYNAMIC TEMPERATURE RANGE IMPEDANCE STABILITY ZZT ∆ V ZT MAXIMUM (Note 1) OHMS 200 200 200 200 200 200 200 200 200 200 100 100 100 100 100 100 100 100 100 100 (Note 2) mV 64 132 32 66 13 26 6.4 13 3.2 6.6 64 132 32 66 13 26 6.4 13 3.2 6.6 0 -55 0 -55 0 -55 0 -55 0 -55 0 -55 0 -55 0 -55 0 -55 0 -55 °C to to to to to to to to to to to to to to to to to to to to + + + + + + + + + + + + + + + + + + + + 75 100 75 100 75 100 75 100 75 100 75 100 75 100 75 100 75 100 75 100 % / °C 0.01 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 0.01 0.01 0.005 0.005 0.002 0.002 0.01 0.01 0.0005 0.0005 EFFECTIVE TEMPERATURE COEFFICIENT
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.
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.
NOTE 1
Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current equal to 10% of lZT. 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. . Zener voltage range equals 8.5 volts +5%
NOTE 2
NOTE 3
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
600
Pd, Rated Power Dissipation (mW)
500 400 300 200 100 0 0 25 50 75 100 125 150 175
TL, Ambient temperature (°C) FIGURE 2
POWER DERATING CURVE
+.0015 CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
+.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
.