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
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.
CDLL4916
thru
CDLL4932A
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= 15
µ
A @ 25°C & VR= 12Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI VOLTAGE EFFECTIVE MAXIMUM MAXIMUM
TYPE TEST TEMPERATURE TEMPERATURE TEMPERATURE DYNAMIC NOISE
NUMBER CURRENT STABILITY RANGE COEFFICIENT IMPEDANCE DENSITY
l ZT ∆VZT ZZT ND
(Note 3) (Note 2) (Note 1)
mA mV °C %/°C OHMS
µ
V/ Hz
CDLL4916 0.5 144 +25 to +100 0.01 600 1.0
CDLL4916A 0.5 298 -55 to +100 0.01 600 1.0
CDLL4917 0.5 72 +25 to +100 0.005 600 1.0
CDLL4917A 0.5 149 -55 to +100 0.005 600 1.0
CDLL4918 0.5 29 +25 to +100 0.002 600 1.0
CDLL4918A 0.5 60 -55 to +100 0.002 600 1.0
CDLL4919 1.0 144 +25 to +100 0.01 300 0.5
CDLL4919A 1.0 298 -55 to +100 0.01 300 0.5
CDLL4920 1.0 72 +25 to +100 0.005 300 0.5
CDLL4920A 1.0 149 -55 to +100 0.005 300 0.5
CDLL4921 1.0 29 +25 to +100 0.002 300 0.5
CDLL4921A 1.0 60 -55 to +100 0.002 300 0.5
CDLL4922 2.0 144 +25 to +100 0.01 150 0.25
CDLL4922A 2.0 298 -55 to +100 0.01 150 0.25
CDLL4923 2.0 72 +25 to +100 0.005 150 0.25
CDLL4923A 2.0 149 -55 to +100 0.005 150 0.25
CDLL4924 2.0 29 +25 to +100 0.002 150 0.25
CDLL4924A 2.0 60 -55 to +100 0.002 150 0.25
CDLL4925 4.0 144 +25 to +100 0.01 75 0.22
CDLL4925A 4.0 298 -55 to +100 0.01 75 0.22
CDLL4926 4.0 72 +25 to +100 0.005 75 0.22
CDLL4926A 4.0 149 -55 to +100 0.005 75 0.22
CDLL4927 4.0 29 +25 to +100 0.002 75 0.22
CDLL4927A 4.0 60 -55 to +100 0.002 75 0.22
CDLL4928 4.0 14 +25 to +100 0.001 75 0.22
CDLL4928A 4.0 30 -55 to +100 0.001 75 0.22
CDLL4929 7.5 144 +25 to +100 0.01 36 0.20
CDLL4929A 7.5 298 -55 to +100 0.01 36 0.20
CDLL4930 7.5 72 +25 to +100 0.005 36 0.20
CDLL4930A 7.5 149 -55 to +100 0.005 36 0.20
CDLL4931 7.5 29 +25 to +100 0.002 36 0.20
CDLL4931A 7.5 60 -55 to +100 0.002 36 0.20
CDLL4932 7.5 14 +25 to +100 0.001 36 0.20
CDLL4932A 7.5 30 -55 to +100 0.001 36 0.20
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 19.2 volts + 5%.
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LEADLESS PACKAGE FOR SURFACE MOUNT
• 19.2 VOLT NOMINAL ZENER VOLTAGE + 5%
• LOW NOISE
• DOUBLE PLUG CONSTRUCTION
• METALLURGICALLY BONDED
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.
CDLL4916 thru CDLL4932A
24681012
OPERATING CURRENT lZT (mA)
ZENER IMPEDANCE ZZT (OHMS)
FIGURE 2
ZENER IMPEDANCE VS. OPERATING CURRENT
.2 .4 .6 .8
OPERATING CURRENT lZT (mA) 0.5 1.0 1.5 2.0
OPERATING CURRENT lZT (mA) 1.0 2.0 3.0 4.0
OPERATING CURRENT lZT (mA)
6789
OPERATING CURRENT lZT (mA)
2 3 4 5 6
OPERATING CURRENT lZT (mA)
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
CHANGE IN TEMPERATURE
COEFFICIENT ( %/°C)
1N4916 - 1N4918 1N4922 - 1N4924
1N4919 - 1N4921
1N4925 - 1N4928 1N4929 - 1N4932
1000
500
200
100
50
20
10
