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* 1 WATT ZENER DIODES * LEADLESS PACKAGE FOR SURFACE MOUNT * DOUBLE PLUG CONSTRUCTION * METALLURGICALLY BONDED
CDLL4728 thru CDLL4764A and CDLL1W110
MAXIMUM RATINGS
Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C Power Derating: 20mW / C above TEC = +125C Forward voltage @ 200mA: 1.2 volts maximum
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified.
CDI TYPE NUMBER NOMINAL ZENER VOLTAGE VZ (Note 1&3) VOLTS CDLL4728A CDLL4729A CDLL4730A CDLL4731A CDLL4732A CDLL4733A CDLL4734A CDLL4735A CDLL4736A CDLL4737A CDLL4738A CDLL4739A CDLL4740A CDLL4741A CDLL4742A CDLL4743A CDLL4744A CDLL4745A CDLL4746A CDLL4747A CDLL4748A CDLL4749A CDLL4750A CDLL4751A CDLL4752A CDLL4753A CDLL4754A CDLL4755A CDLL4756A CDLL4757A CDLL4758A CDLL4759A CDLL4760A CDLL4761A CDLL4762A CDLL4763A CDLL4764A CDLL1W110A 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 110 TEST CURRENT lZT mA 76 69 64 58 53 49 45 41 37 34 31 28 25 23 21 29 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 2.3 MAXIMUM ZENER IMPEDANCE ZZT @ lZT (Note 2) OHMS 10 10 9 9 8 7 5 2 3.5 4.0 4.5 5.0 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 450 MAXIMUM REVERSE CURRENT lR @ VR TEST VOLTAGE VR VOLTS 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 76.0 83.6 MAXIMUM KNEE IMPEDANCE ZZK @ lZK (Note 2) OHMS 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 4000 TEST CURRENT lZK mA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
A
100 100 100 10 10 5 5 5 3 3 3 3 3 2 1 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
DIM D F G G1 S
MILLIMETERS MIN MAX 2.39 2.66 0.41 0.55 4.80 5.20 4.11 REF. 0.03 MIN.
INCHES MIN MAX .094 .105 .016 .022 .189 .205 .159 REF. .001 MIN.
FIGURE 1
DESIGN DATA
CASE: DO-213AB, Hermetically sealed glass case. (MELF, LL41) LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 100 C/W maximum at L = 0 inch THERMAL IMPEDANCE: (ZOJX): 15 C/W maximum POLARITY: Diode to be operated with the banded (cathode) end positive. 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 "A" suffix = + 5%, no suffix = +10%, "C" SUFFIX = + 2% and "D" suffix = + 1%. NOTE 2 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current equal to 10% of lZT or lZK. NOTE 3 Nominal Zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25C + 3C.
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
CDLL4728 thru CDLL4764A and CDLL1W110
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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