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* ZENER DIODE CHIPS * ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE * ELECTRICALLY EQUIVALENT TO 1N4678 THRU 1N4717 * 0.5 WATT CAPABILITY WITH PROPER HEAT SINKING * 50A, LOW OPERATING CURRENT, ZENER DIODES * COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES, WITH THE EXCEPTION OF SOLDER REFLOW MAXIMUM RATINGS
Operating Temperatures: -65C to +175C Storage Temperatures: -65C to +175C Forward Voltage @ 200 mA: 1.5 Volts maximum ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified.
CDI TYPE NUMBER (Note 1) CD4678 CD4679 CD4680 CD4681 CD4682 CD4683 CD4684 CD4685 CD4686 CD4687 CD4688 CD4689 CD4690 CD4691 CD4692 CD4693 CD4694 CD4695 CD4696 CD4697 CD4698 CD4699 CD4700 CD4701 CD4702 CD4703 CD4704 CD4705 CD4706 CD4707 CD4708 CD4709 CD4710 CD4711 CD4712 CD4713 CD4714 CD4715 CD4716 CD4717 NOMINAL ZENER VOLTAGE VZ (Note 3) VOLTS 1.8 2.0 2.2 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 8.7 9.1 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 22.0 24.0 25.0 27.0 28.0 30.0 33.0 36.0 39.0 43.0 ZENER TEST CURRENT lZT MAXIMUM VOLTAGE REGULATION VZ (Note 2) VOLTS 0.70 0.70 0.75 0.80 0.80 0.90 0.95 0.95 0.97 0.99 0.99 0.97 0.96 0.95 0.90 0.75 0.50 0.10 0.08 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.22 0.24 0.25 0.27 0.28 0.30 0.33 0.36 0.39 0.43 MAXIMUM REVERSE LEAKAGE CURRENT lR @ VR MAXIMUM DC ZENER CURRENT lZM mA 120.0 110.0 100.0 95.0 90.0 85.0 80.0 75.0 70.0 65.0 60.0 55.0 50.0 45.0 35.0 31.8 29.0 27.4 26.2 24.8 21.6 20.4 19.0 17.5 16.3 15.4 14.5 13.2 12.5 11.9 10.8 9.9 9.5 8.8 8.5 7.9 7.2 6.6 6.1 5.5
CD4678 thru CD4717
23 MILS 15 MILS
A
50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50
A
7.5 5.0 4.0 2.0 1.0 0.8 7.5 7.5 5.0 4.0 10.0 10.0 10.0 10.0 10.0 10.0 1.0 1.0 1.0 1.0 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01
VOLTS 1.0 1.0 1.0 1.0 1.0 1.0 1.5 2.0 2.0 2.0 3.0 3.0 4.0 5.0 5.1 5.7 6.2 6.6 6.9 7.6 8.4 9.1 9.8 10.6 11.4 12.1 12.9 13.6 14.4 15.2 16.7 18.2 19.0 20.4 21.2 22.8 25.0 27.3 29.8 32.6
BACKSIDE IS CATHODE
FIGURE 1
DESIGN DATA
METALLIZATION: Top: (Anode).....................Al Back: (Cathode)................Au AL THICKNESS....... ......25,000 A Min GOLD THICKNESS..........4,000 A Min CHIP THICKNESS....................10 Mils CIRCUIT LAYOUT DATA: For Zener operation, cathode must be operated positive with respect to anode. TOLERANCES: ALL Dimensions + 2 mils
NOTE 1
The JEDEC type numbers shown above have a standard tolerance of + 5% oF the nominal Zener voltage. Vz is measured with the diode in thermal equilibrium at 25C + 3C. VZ @ 100 A minus VZ @ 10 A. Zener voltage is read using a pulse measurement, 10 milliseconds maximum.
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: mail@cdi-diodes.com
15 MILS
23 MILS
CD4678
Pd, Rated Power Dissipation (mW) 600 500 400 300 200 100 0 0 25 50 75
thru
CD4717
FIGURE 2
100
125
150
175
200
TA, Ambient temperature (C)
POWER DERATING CURVE
1000
500 400 300 200 ZENER IMPEDANCE ZZT (OHMS)
3. 3
VO LT
27
100
VO LT
1 5. LT VO
50 40 30 20
11
VO LT
10
5 4 3 2
6.2 VO LT
1 .1 .2 .3 .4 .5 1 25 10 20 OPERATING CURRENT lZT (mA) 30 40 50 100
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT

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