ZM4740A

ZM4727-ZM4761 SILICON PLANAR ZENER DIODES for use in stabilizing and clipping circuits with high power rating. Standard Zener voltage tolerance is ±10%. Add suffix "A" for ±5% tolerance and suffix "B" for ±2% tolerance. Other tolerances available are upon request. LL-41 These diodes are also available in DO-41 case with the type designation 1N4727...1N4761 Absolute Maximum Ratings (Ta = 25℃) Parameter Symbol Power Dissipation Storage Temperature Range 1) Unit 1) W Tj 175 ℃ Tstg - 65 to + 175 ℃ Symbol Max. Unit RθJA 170 1) K/W VF 1.2 V Ptot Junction Temperature Value 1 Valid provided that electrodes are kept at ambient temperature. Characteristics at Ta = 25℃ Parameter Thermal Resistance Junction to Ambient Air Forward Voltage at IF = 200 mA 1) Valid provided that electrodes are kept at ambient temperature. www.slkormicro.com 1 ZM4727-ZM4761 Characteristics at Ta = 25℃ Type ZM4727 ZM4728 ZM4729 ZM4730 ZM4731 ZM4732 ZM4733 ZM4734 ZM4735 ZM4736 ZM4737 ZM4738 ZM4739 ZM4740 ZM4741 ZM4742 ZM4743 ZM4744 ZM4745 ZM4746 ZM4747 ZM4748 ZM4749 ZM4750 ZM4751 ZM4752 ZM4753 ZM4754 ZM4755 ZM4756 ZM4757 ZM4758 ZM4759 ZM4760 ZM4761 Maximum Surge Current 4) VZnom at lZT ZZT ZZK at IZK IR at VR at Ta = 25℃ Maximum Regulator Current 2) (V) (mA) Max. (Ω) Max. (Ω) (mA) Max. (µA) (V) IZSM (mA) IZM (mA) 3 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 83 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 6.5 6 5.5 5 4.5 4 3.7 3.3 10 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 95 110 125 150 175 400 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 1 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 0.25 150 150 100 100 50 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 1 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 1375 1375 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 60 275 275 252 234 217 193 178 162 146 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 Zener Voltage 3) Dynamic Resistance 1) 1) Reverse Current The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. 2) Valid provided that electrodes are kept at ambient temperature. 3) Tested with pulses tp = 20 ms. 4) The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current IZT. www.slkormicro.com 2 ZM4727-ZM4761   Power Dissipation vs Ambient Temperature Power Dissipation: Ptot (mW) 1200 1000 800 600 400 200 0 0 25 50 75 100 125 150 Ambient Temperature: Ta ( C) O www.slkormicro.com 3 175