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| ZM4728A - ZM4764A VZ : 3.3 to 100V PD : 1W FEATURES : * Silicon planar power zener diodes * For use in stabilizing and clipping circuits with higher power rating. * Standard zener voltage tolerance is 5%. * Other zener voltages and tolerances are available upon request. * These diodes are also available in the DO-41 case with type designation 1N4728A ... 1N4764A * Pb / RoHS Free ZENER DIODES MELF Cathode Mark 0.102 (2.6) 0.094 (2.4) 0.022(0.55) 0.205(5.2) 0.189(4.8) Mounting Pad Layout 0.157 (4.00) Max. 0.049 (1.25)Min. 0.118 (3.00)Min. MECHANICAL DATA : * Case : MELF Glass Case * Weight : 0.25 g (approximately) 0.256 (6.50) REF Dimensions in inches and ( millimeters ) Rating at 25 C ambient temperature unless otherwise specifie. Maximum Ratings and Thermal Characteristics Parameter Zener Current see Table "Characteristics" Maximum Forward Voltage at IF = 200 mA. Power Dissipation Thermal Resistance Junction to Ambient Air Junction temperature Storage temperature range VF PD RJA TJ TS 1.2 1 1) (1) Symbol Value Unit V W C/W C C 170 -65 to + 200 -65 to + 200 Note: (1) Valid provided that electrodes are kept at ambient temperature Page 1 of 2 Rev. 03 : March 25, 2005 ELECTRICAL CHARACTERISTICS Nominal Zener (Ta = 25 C unless otherwise noted) Maximum Reverse Leakage Current IR @ VR (V) (A) 100 100 50 10 10 10 10 10 10 10 10 10 10 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 1.0 1.0 1.0 1.0 1.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 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 Maximum DC Zener Current IZM(2) (mA) 276 252 234 217 193 178 162 146 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9.0 Type Voltage VZ @ IZT IZT (V) (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 76.0 69.0 64.0 58.0 53.0 49.0 45.0 41.0 37.0 34.0 31.0 28.0 25.0 23.0 21.0 19.0 17.0 15.5 14.0 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 Maximum Zener Impedance(1) ZZT @ IZT () 10 10 9.0 9.0 8.0 7.0 5.0 2.0 3.5 4.0 4.5 5.0 7.0 8.0 9.0 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 ZZK @ IZK () 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 IZK (mA) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 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 ZM4728A ZM4729A ZM4730A ZM4731A ZM4732A ZM4733A ZM4734A ZM4735A ZM4736A ZM4737A ZM4738A ZM4739A ZM4740A ZM4741A ZM4742A ZM4743A ZM4744A ZM4745A ZM4746A ZM4747A ZM4748A ZM4749A ZM4750A ZM4751A ZM4752A ZM4753A ZM4754A ZM4755A ZM4756A ZM4757A ZM4758A ZM4759A ZM4760A ZM4761A ZM4762A ZM4763A ZM4764A Notes: (1) The Zener impedance is derived from the 1KHz 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 I ZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units (2) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature (3) The type number listed have a standard tolerance on the nominal zener voltage of 5%. Page 2 of 2 Rev. 03 : March 25, 2005 |
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