RECTRON 1N4728A THRU 1N4757A SEMICONDUCTOR TECHNICAL SPECIFICATION 1W 5% DO-41 ZENER DIODE Absolute Maximun Ratings (Ta=25oC) Items Power Dissipation Power Derating (above 50 oC) Forward Voltage @If = 200 mA Vz Tolerence Junction Temp. Storage Temp. Dimensions Symbol Ratings Unit PTOT 1.0 W 6.67 mW/oC Vf 1.5 V TJ TSTG 5 -65 to 175 -65 to 175 DO-41 27.9 MIN 0.71 0.87 % C o C o 4.06 5.51 Mechanical Data Items 2.03 2.72 Materi als P a cka g e DIA. DIA. D O-41 C a se Hermeti cally sealed glass Lead/Fi ni sh C hi p D ouble stud/Solder Plati ng Glass Passi vated 27.9 MIN Dimensions in millimeters Electrical Characteristics (Ta=25oC) ZENER VOLTAGE MAX ZENER IMPEDANCE MAX ZENER IMPEDANCE TYPE MAXIMUM REVERSE CURRENT TEMP. COEFF. dvz Vz(V) @Izt(mA) Rz (ohms) @Izt(mA) Rz (ohms) @Izt(mA) @VR (V) IR (uA) (%/ oC) 1N4728A 3.3 76 10.0 76 400 1.0 1.0 100 -0.06 1N4729A 3.6 69 10.0 69 400 1.0 1.0 100 -0.06 1N4730A 3.9 64 9.0 64 400 1.0 1.0 50 -0.05 1N4731A 4.3 58 9.0 58 400 1.0 1.0 10 -0.03 1N4732A 4.7 53 8.0 53 500 1.0 1.0 10 -0.01 1N4733A 5.1 49 7.0 49 550 1.0 1.0 10 0.01 1N4734A 5.6 45 5.0 45 600 1.0 2.0 10 0.03 1N4735A 6.2 41 2.0 41 700 1.0 3.0 10 0.04 1N4736A 6.8 37 3.5 37 700 1.0 4.0 10 0.05 1N4737A 7.5 34 4.0 34 700 0.5 5.0 10 0.05 1N4738A 8.2 31 4.5 31 700 0.5 6.0 10 0.06 1N4739A 9.1 28 5.0 28 700 0.5 7.0 10 0.06 1N4740A 10.0 25 7.0 25 700 0.25 7.6 10 0.07 Electrical Characteristics (Ta=25oC) ZENER VOLTAGE MAX ZENER IMPEDANCE TYPE MAX ZENER IMPEDANCE Izt = 0.25mA MAXIMUM REVERSE CURRENT TEMP. COEFF. dvz Vz(V) @Izt(mA) Rz (ohms) @Izt(mA) Rz (ohms) @VR (V) IR (uA) (%/ oC) 1N4741A 11 23 8 23 700 8.4 5.0 0.07 1N4742A 12 21 9 21 700 9.1 5.0 0.07 1N4743A 13 19 10 19 700 9.9 5.0 0.07 1N4744A 15 17 14 17 700 11.4 5.0 0.08 1N4745A 16 15.5 16 15.5 700 12.2 5.0 0.08 1N4746A 18 14 20 14 750 13.7 5.0 0.08 1N4747A 20 12.5 22 12.5 750 15.2 5.0 0.08 1N4748A 22 11.5 23 11.5 750 16.7 5.0 0.08 1N4749A 24 10.5 25 10.5 750 18.2 5.0 0.08 1N4750A 27 9.5 35 9.5 750 20.6 5.0 0.09 1N4751A 30 8.5 40 8.5 1000 22.6 5.0 0.09 1N4752A 33 7.5 45 7.5 1000 25.1 5.0 0.09 1N4753A 36 7.0 50 7.0 1000 27.4 5.0 0.09 1N4754A 39 6.5 60 6.5 1000 29.7 5.0 0.09 1N4755A 43 6.0 70 6.0 1500 32.7 5.0 0.09 1N4756A 47 5.5 80 5.5 1500 35.8 5.0 0.09 1N4757A 51 5.0 95 5.0 1500 38.8 5.0 0.09 Notes: 1. Rectangular waveform (tp= 10 ms)