• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES CDLL4916 thru • LEADLESS PACKAGE FOR SURFACE MOUNT • 19.2 VOLT NOMINAL ZENER VOLTAGE + 5% CDLL4932A • LOW NOISE • DOUBLE PLUG CONSTRUCTION • METALLURGICALLY BONDED 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 = 15µA @ 25°C & VR = 12Vdc ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified. CDI TYPE NUMBER TEST CURRENT l ZT VOLTAGE TEMPERATURE STABILITY ∆VZT (Note 2) mA mV °C (Note 3) TEMPERATURE RANGE EFFECTIVE TEMPERATURE COEFFICIENT MAXIMUM DYNAMIC IMPEDANCE ZZT (Note 1) MAXIMUM NOISE DENSITY ND %/°C OHMS µ V/ Hz CDLL4916 CDLL4916A CDLL4917 CDLL4917A 0.5 0.5 0.5 0.5 144 298 72 149 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.01 0.01 0.005 0.005 600 600 600 600 1.0 1.0 1.0 1.0 CDLL4918 CDLL4918A CDLL4919 CDLL4919A 0.5 0.5 1.0 1.0 29 60 144 298 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.002 0.002 0.01 0.01 600 600 300 300 1.0 1.0 0.5 0.5 CDLL4920 CDLL4920A CDLL4921 CDLL4921A 1.0 1.0 1.0 1.0 72 149 29 60 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.005 0.005 0.002 0.002 300 300 300 300 0.5 0.5 0.5 0.5 CDLL4922 CDLL4922A CDLL4923 CDLL4923A 2.0 2.0 2.0 2.0 144 298 72 149 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.01 0.01 0.005 0.005 150 150 150 150 0.25 0.25 0.25 0.25 CDLL4924 CDLL4924A CDLL4925 CDLL4925A 2.0 2.0 4.0 4.0 29 60 144 298 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.002 0.002 0.01 0.01 150 150 75 75 0.25 0.25 0.22 0.22 CDLL4926 CDLL4926A CDLL4927 CDLL4927A 4.0 4.0 4.0 4.0 72 149 29 60 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.005 0.005 0.002 0.002 75 75 75 75 0.22 0.22 0.22 0.22 CDLL4928 CDLL4928A CDLL4929 CDLL4929A 4.0 4.0 7.5 7.5 14 30 144 298 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.001 0.001 0.01 0.01 75 75 36 36 0.22 0.22 0.20 0.20 CDLL4930 CDLL4930A CDLL4931 CDLL4931A 7.5 7.5 7.5 7.5 72 149 29 60 +25 to +100 -55 to +100 +25 to +100 -55 to +100 0.005 0.005 0.002 0.002 36 36 36 36 0.20 0.20 0.20 0.20 CDLL4932 CDLL4932A 7.5 7.5 14 30 +25 to +100 -55 to +100 0.001 0.001 36 36 0.20 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%. 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. 22 COREY STREET, MELROSE, MASSACHUSETTS 02176 PHONE (781) 665-1071 FAX (781) 665-7379 WEBSITE: http://www.cdi-diodes.com E-mail: [email protected] CDLL4916 thru CDLL4932A ZENER IMPEDANCE ZZT (OHMS) 1000 500 200 100 50 20 10 2 4 6 8 10 OPERATING CURRENT lZT (mA) 12 FIGURE 2 1N4916 - 1N4918 1N4919 - 1N4921 1N4922 - 1N4924 .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) +.0015 +.0010 +.0005 0 -.0005 -.0010 -.0015 1N4925 - 1N4928 CHANGE IN TEMPERATURE COEFFICIENT ( %/°C) CHANGE IN TEMPERATURE COEFFICIENT ( %/°C) ZENER IMPEDANCE VS. OPERATING CURRENT 1N4929 - 1N4932 +.0015 +.0010 +.0005 0 -.0005 -.0010 -.0015 2 3 4 5 6 OPERATING CURRENT lZT (mA) 6 7 8 9 OPERATING CURRENT lZT (mA) FIGURE 3 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT