SMD Zener Diode CZRA4728B-HF Thru. CZRA1330B-HF Zener Voltage: 3.3 to 330 Volts DC Power: 1 Watts RoHS Device Halogen Free DO-214AC (SMA) Features -Glass passivated chip. -Low leakage. 0.179(4.55) 0.161(4.10) -For use in stabilizing and clipping with high power rating. 0.109(2.76) 0.099(2.51) 0.064(1.63) 0.049(1.23) -Built-in strain relief. -Low inductance. -High peak reverse power dissipation. 0.206(5.22) 0.192(4.87) Mechanical data 0.012(0.30) 0.006(0.15) 0.089(2.26) 0.077(1.96) -Case: JEDEC DO-214AC, molded plastic. -Epoxy: UL 94V-0 rate flame retardant. 0.059(1.51) 0.030(0.75) 0.008(0.20) 0.000(0.00) -Lead: Solderable per MIL-STD-750, method 2026. -Polarity: Color band denotes cathode end. Dimensions in inches and (millimeter) -Mounting position: Any. -Approx. weight: 0.069 grams Maximum Ratings and Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Symbol Value Units DC power dissipation at TL=50°C (Note 1) PD 1 W Max. forward voltage at IF=200 mA VF 1.2 V RθJA 170 K/W Junction temperature range TJ -55 to +175 °C Storage temperature range TSTG -55 to +175 °C Characteristics Maximum thermal resistance junction to ambient air (Note 2) Notes: 1. TL= Lead temperature at 3/8” (9.5mm) from body. 2. Valid provided that leads are kept at ambient temperature at a distance of 10mm from case. Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 1 QW-JZ009 Comchip Technology CO., LTD. SMD Zener Diode RATING AND CHARACTERISTIC CURVES (CZRA4728B-HF Thru. CZRA1330B-HF) Fig.1 - Power Temperature Derating Curve Fig.2 - Temperature Coefficients v.s. Zener Voltage 100 Temperature Coefficient, θVz (mV/°C) Max. Power Dissipation, PD (W) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 Range 10 1 10 175 Lead Temperature, TL (°C) 100 Zener Voltage, Vz (V) Fig.3 - Typical Thermal Resistance v.s. Lead Length 175 Junction to Lead Thermal Resistance , θJL (°C/W) 150 125 100 75 50 25 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0 1 Lead Length to Heatsink, L (inches) Fig.4 - Maximum Surge Power 100 Peak Surge Power, Ppk (W) Rectangular Waveform TJ=25°C Prior to Initial Pulse 5% Duty Cycle 10 11V-91V Non-Repetitive 10% Duty Cycle 20% Duty Cycle 1 0.01 0.1 1 10 100 1000 Pulse Width, PW (s) Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 2 QW-JZ009 Comchip Technology CO., LTD. SMD Zener Diode Electrical Characteristics (CZRA4728B-HF Thru. CZRA1330B-HF) Part No Nominal Zener Voltage Maximum Zener Impedance ZZT@IZT(Ω) ZZK@IZK(Ω) VZ@IZT(V) IZT (mA) CZRA4728B-HF 3.3 76.0 10.0 CZRA4729B-HF 3.6 69.0 10.0 CZRA4730B-HF 3.9 64.0 CZRA4731B-HF 4.3 CZRA4732B-HF Maximum Reverse Leakage Current Maximum DC Zener Current Maximum Surge Current IRM (mApk) Marking Code IZK (mA) IR (μA) VR (V) IZM (mA) 400 1.00 100.0 1.0 274.0 1370 28A 400 1.00 100.0 1.0 251.0 1255 29A 9.0 400 1.00 50.0 1.0 232.0 1160 30A 58.0 9.0 400 1.00 10.0 1.0 210.0 1050 31A 4.7 53.0 8.0 500 1.00 10.0 1.0 192.0 960 32A CZRA4733B-HF 5.1 49.0 7.0 550 1.00 10.0 1.0 177.0 885 33A CZRA4734B-HF 5.6 45.0 5.0 600 1.00 10.0 2.0 161.0 805 34A CZRA4735B-HF 6.2 41.0 2.0 700 1.00 10.0 3.0 146.0 730 35A CZRA4736B-HF 6.8 37.0 3.5 700 1.00 5.0 4.0 133.0 660 36A CZRA4737B-HF 7.5 34.0 4.0 700 0.50 5.0 5.0 121.0 605 37A CZRA4738B-HF 8.2 31.0 4.5 700 0.50 5.0 6.0 110.0 550 38A CZRA4739B-HF 9.1 28.0 5.0 700 0.50 0.5 7.0 100.0 500 39A CZRA4740B-HF 10.0 25.0 7.0 700 0.25 0.5 7.6 91.0 454 40A CZRA4741B-HF 11.0 23.0 8.0 700 0.25 0.1 8.4 83.0 414 41A CZRA4742B-HF 12.0 21.0 9.0 700 0.25 0.1 9.1 76.0 380 42A CZRA4743B-HF 13.0 19.0 10.0 700 0.25 0.1 9.9 69.0 344 43A CZRA4744B-HF 15.0 17.0 14.0 700 0.25 0.1 11.4 61.0 305 44A CZRA4745B-HF 16.0 15.5 16.0 700 0.25 0.1 12.2 57.0 285 45A CZRA4746B-HF 18.0 14.0 20.0 750 0.25 0.1 13.7 50.0 250 46A CZRA4747B-HF 20.0 12.5 22.0 750 0.25 0.1 15.2 45.0 225 47A CZRA4748B-HF 22.0 11.5 23.0 750 0.25 0.1 16.7 41.0 205 48A CZRA4749B-HF 24.0 10.5 25.0 750 0.25 0.1 18.2 38.0 190 49A CZRA4750B-HF 27.0 9.5 35.0 750 0.25 0.1 20.6 34.0 170 50A CZRA4751B-HF 30.0 8.5 40.0 1000 0.25 0.1 22.8 30.0 150 51A CZRA4752B-HF 33.0 7.5 45.0 1000 0.25 0.1 25.1 27.0 135 52A CZRA4753B-HF 36.0 7.0 50.0 1000 0.25 0.1 27.4 25.0 125 53A CZRA4754B-HF 39.0 6.5 60.0 1000 0.25 0.1 29.7 23.0 115 54A CZRA4755B-HF 43.0 6.0 70.0 1500 0.25 0.1 32.7 22.0 110 55A CZRA4756B-HF 47.0 5.5 80.0 1500 0.25 0.1 35.8 19.0 95 56A CZRA4757B-HF 51.0 5.0 95.0 1500 0.25 0.1 38.8 18.0 90 57A CZRA4758B-HF 56.0 4.5 110.0 2000 0.25 0.1 42.6 16.0 80 58A CZRA4759B-HF 62.0 4.0 125.0 2000 0.25 0.1 47.1 14.0 70 59A CZRA4760B-HF 68.0 3.7 150.0 2000 0.25 0.1 51.7 13.0 65 60A CZRA4761B-HF 75.0 3.3 175.0 2000 0.25 0.1 56.0 12.0 60 61A CZRA4762B-HF 82.0 3.0 200.0 3000 0.25 0.1 62.2 11.0 55 62A CZRA4763B-HF 91.0 2.8 250.0 3000 0.25 0.1 69.2 10.0 50 63A CZRA4764B-HF 100.0 2.5 350.0 3000 0.25 0.1 76.0 9.0 45 64A CZRA1110B-HF 110.0 2.3 450.0 4000 0.25 0.1 83.6 8.6 40 11Z CZRA1120B-HF 120.0 2.0 550.0 4500 0.25 0.1 91.2 7.8 37 12Z CZRA1130B-HF 130.0 1.9 700.0 5000 0.25 0.1 98.8 7.0 34 13Z CZRA1150B-HF 150.0 1.7 1000.0 6000 0.25 0.1 114.0 6.4 30 15Z CZRA1160B-HF 160.0 1.6 1100.0 6500 0.25 0.1 121.6 5.8 28 16Z CZRA1180B-HF 180.0 1.4 1200.0 7000 0.25 0.1 136.8 5.2 25 18Z CZRA1200B-HF 200.0 1.2 1900.0 9990 0.25 0.1 152.0 4.7 22 20Z CZRA1220B-HF 220.0 1.0 1600.0 8000 0.25 0.1 167.2 4.0 20 22Z CZRA1240B-HF 240.0 0.9 1800.0 8500 0.25 0.1 182.4 3.8 19 24Z CZRA1250B-HF 250.0 0.9 2000.0 9000 0.25 0.1 190.0 3.6 18 25Z CZRA1270B-HF 270.0 0.8 2100.0 9000 0.25 0.1 205.0 3.3 16 27Z CZRA1300B-HF 300.0 0.8 2300.0 9500 0.25 0.1 228.0 3.0 15 30Z CZRA1330B-HF 330.0 0.7 2500.0 9500 0.25 0.1 250.2 2.7 13 33Z Notes: 1. The type number listed have a standard tolerance on the nominal zener voltage of ±5%. 2. The reverse surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC. Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 3 QW-JZ009 Comchip Technology CO., LTD. SMD Zener Diode Reel Taping Specification d P0 P1 E Index hole F B P W C A 12 o 0 D2 D1 D W1 Trailer Device ....... ....... End ....... ....... Leader ....... ....... ....... ....... 160mm (min) Start 400mm (min) Direction of Feed SMA/DO-214AC SMA/DO-214AC SYMBOL A B C d D D1 D2 (mm) 2.79 ± 0.10 5.33 ± 0.10 2.36 ± 0.10 1.75 ± 0.10 330MAX 50.0 MIN. 13.0 ± 0.2 (inch) 0.110 ± 0.004 0.210 ± 0.004 0.093 ± 0.004 0.069 ± 0.004 13.00MAX 1.969 MIN. 0.512 ± 0.008 SYMBOL E F P P0 P1 W W1 (mm) 1.75 ± 0.10 5.50 ± 0.05 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 12.0 ± 0.30 18.4 MAX. (inch) 0.069 ± 0.004 0.216 ± 0.002 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.472 ± 0.012 0.724 MAX Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 4 QW-JZ009 Comchip Technology CO., LTD. SMD Zener Diode Marking Code XXX 1. XXX : Marking code (see Page.3) 2. : Cathod Band Suggested PAD Layout A DO-214AC(SMA) SIZE (mm) (inch) A 5.28 0.208 B 1.88 MAX 0.074 MAX C 1.52 MIN 0.060 MIN D 1.68 MIN 0.066 MIN B D C Standard Packaging REEL PACK Case Type DO-214AC (SMA) REEL Reel Size ( pcs ) (inch) 5,000 13 Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 5 QW-JZ009 Comchip Technology CO., LTD.