Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: http://www.frontierusa.com 1WATT MELF ZENER DIODE DL4728A THRU DL4753A FEATURES z LOW COST z SMALL SIZE SOLDERABLE ENDS .105(2.67) .095(2.41) MECHANICAL DATA z CASE: MELF DIMENSIONS IN INCHES AND (MILLIMETERS) z TERMINALS: SOLDERABLE PER MIL-STD -202, METHOD 208 z POLARITY: COLOR BAND DENOTES CATHODE z MOUNTING POSITION: ANY z WEIGHT: 0.135 GRAMS .205(5.2) .190(4.8) .022(.60) .018(.46) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED STORAGE AND OPERATING TEMPERATURE RANGE -55 TO + 150°C ELECTRICAL CHARACTERISTICS (TA=25℃ UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES JEDEC TYPE NO DL4728A DL4729A DL4730A DL4731A DL4732A DL4733A DL4734A DL4735A DL4736A DL4737A DL4738A DL4739A DL4740A DL4741A DL4742A DL4743A DL4744A DL4745A DL4746A DL4747A DL4748A DL4749A DL4750A DL4751A DL4752A DL4753A NOMINAL ZENER VOLTAGE VZ@ IZT VOLTS 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 MAXIMUM ZENER IMPEDANCE LEAKAGE CURRENT TEST CURRENT IZT mA ZZT @ IZT OHMS ZZK @ IZK OHMS IZK mA IR μA MAX VR VOLTS 76 69 64 58 53 49 45 41 37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7.0 10 10 9 9 8 7 5 2 3.5 4 4.5 5 7 8 9 10 14 16 20 22 23 25 35 40 45 50 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1 1 1 1 1 1 1 1 1 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 0.25 100 100 50 10 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 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 SURGE CURRENT @ TA=25℃ NOTE: SUFFIX "A" FOR ±5﹪ DL4728A THRU DL4753A Page: 1 IR－mA 1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 RATINGS AND CHARACTERISTIC CURVES DL4728A THRU DL4753A +8 +6 +4 +2 VZ＠IZT RANGE 0 -2 -4 2 3 4 5 6 7 8 9 10 100 70 50 30 20 ( mV/℃) θ VZ, TEMPERATURE COEFFICIENT FIG.1B- Range for Units to 12 to 100 Volts +10 ( mV/℃) θ VZ, TEMPERATURE COEFFICIENT FIG.1A- Range for Units to 12 Volts +12 10 7 5 3 2 VZ＠IZT RANGE 1 11 12 10 20 30 50 70 100 VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS) Figure 2. Temperature Coefficients (-55℃to+150℃temperature change;90% of the units are in the ranges indicated.) RESISTANCE (mV/℃/W) 150 125 100 75 50 25 θ 0 0 0.1 0.2 VZ＠IZ ( mV/℃) θ VZ, TEMPERATURE COEFFICIENT +6 JL, JUNCTION TO LEAD THERMAL 175 +4 TA=25℃ +2 20mA 0.01mA 0 1mA -2 NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS CHANGES IN ZENER CURRENT DO NOT AFFECT TEMPERATURE COEFFICIENTS -4 3 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 100 70 50 20 7 8 Figure 4. Effect of Zener Current 0VBIAS C, CAPACITANCE (PF) 200 6 400 300 200 Tj=25℃ Iz(ms)=0.1Iz(do) f=60hz 5mA 20mA 10 7 5 2 1 100 0VBIAS 50 20 10 8 50%OF BREAKDOWN BIAS 4 1 2 3 5 7 10 20 30 50 70 100 1 VZ, ZENER CURRENT (mA) 2 5 10 1.25 1.0 0.75 0.5 0.25 0 DL4728A THRU DL4753A 20 VZ, NOMINAL VZ (VOLTS) Figure. 7 - Power Temperature Derating Curve PD ,MAXIMUM DISSIPATION (WATTS) ZZ DYNAMIC IMPEDANCE (OHMS) Figure 3. Typical Thermal Resistance versus Lead Length Iz=1mA 5 VZ, ZENER VOLTAGE (VOLTS) L, LEAD LENGTH TO HEAT SINK (INCHES) 1000 700 500 4 20 40 60 80 100 120 140 160 TL, LEAD TEMPERATURE (OC) 180 200 Page: 2 50 100