ZS4728A Thru ZS4764A Surface Mount Zener Diodes SURFACE MOUNT P b Lead(Pb)-Free ZENER DIODES 1.0 WATTS Features *1W Power Dissipation *For Surface Mounted Applications *Low zener Impedance *Low Regulation Factor *Zener Breakdown Voltage Range 3.3V to 36V Mechanical Data *Case : SMA-1 *Terminals : Solderable per MIL-STD-202,Method 208 *Polarity : Color Band Denotes Cathode *Marking : Marking Code(See Table on Page 2) *Mounting Position : Any *Weight : 0.05 grams SMA-1 SMA-1 Outline Dimension B unit:mm C SMA-1 Dim A B C E H J A E J H H WEITRON http://www.weitron.com.tw 1/3 Min Max 2.30 2.70 4.50 4.90 0.30 0.30 3.90 4.30 0.80 0.80 1.50 1.70 17-May-2013 ZS4728A Thru ZS4764A Maximum Ratings (TA=25 C Unless Otherwise Noted) Symbol Characteristics Value Unit Power Dissipation TL=75 C PD 1.0 W Maximun junction Temperature Tj 150 TSTG -55 to +150 C C Storage Temperature Range ELECTRICAL CHARACTERISTICS (T A =25 C Unless Otherwise Noted VF=1.2V MAX, IF = 200mA for all types) Device ZS4728A ZS4729A ZS4730A ZS4731A ZS4732A ZS4733A ZS4734A ZS4735A ZS4736A ZS4737A ZS4738A ZS4739A ZS4740A ZS4741A ZS4742A ZS4743A ZS4744A ZS4745A ZS4746A ZS4747A ZS4748A ZS4749A ZS4750A ZS4751A ZS4752A ZS4753A ZS4754A ZS4755A ZS4756A ZS4757A ZS4758A ZS4759A ZS4760A ZS4761A ZS4762A ZS4763A ZS4764A Device Marking Z3V3 Z3V6 Z3V9 Z4V3 Z4V7 Z5V1 Z5V6 Z6V2 Z6V8 Z7V5 Z8V2 Z9V1 Z10 Z11 Z12 Z13 Z15 Z16 Z18 Z20 Z22 Z24 Z27 Z30 Z33 Z36 Z39 Z43 Z47 Z51 Z56 Z62 Z68 Z75 Z82 Z91 Z100 Zener Voltage VZ(Nom)@IZT Zener Impedance ZZT@IZT Leakage Current Surge Current IR@VR ZZK@IZK I RM @TA =25ºC Volts mA Ω Ω mA µA Volts mA 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 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 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 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 60 70 80 95 110 125 150 175 200 250 350 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 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 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 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 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 76.0 1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45 NOTE: 1. Based on dc-Measurement at Thermal Equilibrium. 2. Surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC method 3. SUFFIX “A” FOR ± 5% WEITRON http: // www.weitron.com.tw 2/3 17-May-2013 ZS4728A Thru ZS4764A θ VZ, TEMPERATURE COEFFICIENT ( mV/℃ ) θ VZ, TEMPERATURE COEFFICIENT ( mV/℃ ) Typical Characteristics +12 +10 +8 +6 +4 +2 0 VZ＠IZT RANGE -2 -4 2 3 4 5 6 7 8 9 10 11 12 VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS) FiG.1 Range for Units to 12 Volts FiG.2 Range for Units to 12 to 100 Volts 150 125 100 75 50 25 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 θ VZ, TEMPERATURE COEFFICIENT ( mV/℃ ) θ JL, JUMCTION TO LEAD THERMAL 175 +6 VZ＠IZ TA=25℃ +4 20mA +2 0.01mA 0 1mA -2 NOTE:BELOW 3 VOLTS AAND ABOCE 8 VOLTS CHANGES IN ZENER CURRENT DO NOT -4 3 L, LEAD LENGTH TO HEAT SINK (INCHES) 1000 700 500 100 70 50 20 20mA 10 7 5 2 1 3 5 7 10 20 30 VZ V.S. θJL 50 70 100 1V BIAS 50 20 10 8 50% OF BREAKDOWN BIAS 1 2 5 10 20 50 100 VZ, NOMINAL VZ (VOLTS) FIG.6 Effect of Zener Current Resistance V.S. Lead PD , MAXIMUM POWER DISSIPATION (WATTS) 8 0V BIAS VZ, ZENER CURRENT (mA) FIG.5 Typical Thermal 7 100 4 2 6 400 300 200 5mA 1 5 FIG.4 Temperature Coefficients Tj=25℃ Iz(ms)=0.1Iz(do) f=60hz Iz=1mA 200 Lead V.S. θJL C, CAPACITANCE (PF) ZZDYNAMIC IMPEDANCE (OHNS) FIG.3 Temperature Coefficients 4 VZ, ZENER VOLTAGE (VOLTS) 1.25 1.0 0.75 0.5 0.25 WEITRON http://www.weitron.com.tw 0 20 40 60 80 100 120 140 160 TL, LEAD TEMPERATURE (OC) 180 200 FIG.7 Power Temperature Derating Curve 3/3 17-May-2013