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SMAJ4728A Scheda tecnica(PDF) 2 Page - List of Unclassifed Manufacturers |
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SMAJ4728A Scheda tecnica(HTML) 2 Page - List of Unclassifed Manufacturers |
2 / 2 page SMAJ4728A thru SMAJ4751A Document Number: SMAJ4728A thru SMAJ4751A www.smsemi.com Feb.29, 2012 2 Electrical Characteristics @ 25°C (Unless Otherwise Noted) TABLE1 Note: 1. The type numbers shown with an A suffix have a 5% tolerance on nominal zener voltage. No suffix signifies a 10% tolerance, C signifies 2%, and D signifies 1% tolerance. 2. The Zener impedance is derived from the 60 HZ ac voltage ,which results when an ac current having an rms value equal to 10% of the dc Zener current (IZT or IZK ) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and eliminate unstable units. 3. The reverse surge current is measured at 25°C ambient using a 1/2 square wave or equivalent sine wave pulse 1/120 second duration superimposed on IZT. 4. Voltage at thermal equilibrium or 90seconds after application of dc current. Part Number Zener Voltage VZ @ IZT Test Current Maximum Dynamic Impedance ZZT @ IZT Maximum Knee Impedance ZZk @ IZk Knee Current Maximum Reverse Current IR @ VR Maximum Regulator Current TL= 100°C Maximum Surge Current VZ (V) IZT (mA) ZZT (OHMS) ZZK (OHMS) IZK (mA) IR (µA) VR (V) IZM (mA) Izsm (mA) SMAJ4728A SMAJ4729A SMAJ4730A SMAJ4731A 3.3 3.6 3.9 4.3 76.0 69.0 64.0 58.0 10.0 10.0 9.0 9.0 400 400 400 400 1.00 1.00 1.00 1.00 100 100 50 10 1.0 1.0 1.0 1.0 552 504 468 434 1380 1260 1190 1070 SMAJ4732A SMAJ4733A SMAJ4734A SMAJ4735A 4.7 5.1 5.6 6.2 53.0 49.0 45.0 41.0 8.0 7.0 5.0 2.0 500 550 600 700 1.00 1.00 1.00 1.00 10 10 10 10 1.0 1.0 2.0 3.0 386 356 324 292 970 890 810 730 SMAJ4736A SMAJ4737A SMAJ4738A SMAJ4739A 6.8 7.5 8.2 9.1 37.0 34.0 31.0 28.0 3.5 4.0 4.5 5.0 700 700 700 700 1.00 0.50 0.50 0.50 10 10 10 10 4.0 5.0 6.0 7.0 266 242 220 200 660 605 550 500 SMAJ4740A SMAJ4741A SMAJ4742A SMAJ4743A 10.0 11.0 12.0 13.0 25.0 23.0 21.0 19.0 7.0 8.0 9.0 10.0 700 700 700 700 0.25 0.25 0.25 0.25 10 5 5 5 7.6 8.4 9.1 9.9 182 166 152 138 454 414 380 344 SMAJ4744A SMAJ4745A SMAJ4746A SMAJ4747A 15.0 16.0 18.0 20.0 17.0 15.5 14.0 12.5 14.0 16.0 20.0 22.0 700 700 750 750 0.25 0.25 0.25 0.25 5 5 5 5 11.4 12.2 13.7 15.2 132 114 100 90 304 285 250 225 SMAJ4748A SMAJ4749A SMAJ4750A SMAJ4751A 22.0 24.0 27.0 30.0 11.5 10.5 9.5 8.5 23.0 25.0 35.0 40.0 720 750 750 1000 0.25 0.25 0.25 0.25 5 5 5 5 16.7 18.2 20.6 22.8 82 76 68 60 205 190 170 150 打印无效 |
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