1N4916 thru * 19.2 VOLT NOMINAL ZENER VOLTAGE + 5% * TEMPERATURE COMPENSATED ZENER REFERENCE DIODES 1N4932A * LOW NOISE * METALLURGICALLY BONDED * DOUBLE PLUG CONSTRUCTION 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 lR = 15 A @ 25C & VR = 12Vdc ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified. JEDEC TYPE NUMBER TEST CURRENT l ZT (Note 3) VOLTAGE TEMPERATURE STABILITY VZT (Note 2) TEMPERATURE RANGE EFFECTIVE TEMPERATURE COEFFICIENT MAXIMUM DYNAMIC IMPEDANCE ZZT (Note 1) MAXIMUM NOISE DENSITY ND V Hz mA mV C %/C OHMS 1N4916 1N4916A 1N4917 1N4917A 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 1N4918 1N4918A 1N4919 1N4919A 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 1N4920 1N4920A 1N4921 1N4921A 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 1N4922 1N4922A 1N4923 1N4923A 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 1N4924 1N4924A 1N4925 1N4925A 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 DESIGN DATA 1N4926 1N4926A 1N4927 1N4927A 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 CASE: Hermetically sealed glass case. DO - 35 outline. 1N4928 1N4928A 1N4929 1N4929A 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 1N4930 1N4930A 1N4931 1N4931A 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 1N4932 1N4932A 7.5 7.5 14 30 +25 to +100 -55 to +100 0.001 0.001 36 36 0.20 0.20 FIGURE 1 LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: Any. 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%. 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 1N4916 thru 1N4932A ZENER IMPEDANCE ZZT (OHMS) 1000 500 200 100 50 20 10 2 4 6 8 10 12 OPERATING CURRENT lZT (mA) FIGURE 2 1N4916--1N4918 1N4919--1N4921 .2 .4 .6 .8 OPERATING CURRENT lZT (mA) 0.5 1.0 1.5 2.0 OPERATING CURRENT lZT (mA) 1N4922--1N4924 +.0015 +.0010 +.0005 0 -.0005 -.0010 -.0015 CHANGE IN TEMPERATURE COEFFICIENT ( %/C) CHANGE IN TEMPERATURE COEFFICIENT ( %/C) ZENER IMPEDANCE VS. OPERATING CURRENT 1.0 2.0 3.0 4.0 OPERATING CURRENT lZT (mA) 1N4925--1N4928 1N4929--1N4932 2 3 4 5 6 OPERATING CURRENT lZT (mA) 6 7 8 9 OPERATING CURRENT lZT (mA) +.0015 +.0010 +.0005 0 -.0005 -.0010 -.0015 FIGURE 3 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT