1N4728A - 1N4758A Zener Diodes Tolerance = 5% DO-41 Glass case COLOR BAND DENOTES CATHODE Absolute Maximum Ratings * Symbol PD TJ, TSTG Ta = 25°C unless otherwise noted Value Units Power Dissipation @ TL 50C, Lead Length = 3/8” Parameter 1.0 W Derate above 50C 6.67 mW/C -65 to +200 C Operating and Storage Temperature Range * These ratings are limiting values above which the serviceability of the diode may be impaired. Electrical Characteristics Ta = 25°C unless otherwise noted VZ (V) @ IZ (Note 1) Device Max. Zener Impedance Test Current IZ (mA) ZZ @ IZ ZZK @ IZK Max. () IZK () (mA) VR (V) IZSM (mA) (Note 2) 1 1 1 1 1 100 100 50 10 10 1 1 1 1 1 1380 1260 1190 1070 970 550 600 700 700 700 1 1 1 1 0.5 10 10 10 10 10 1 2 3 4 5 890 810 730 660 605 700 700 700 700 700 0.5 0.5 0.25 0.25 0.25 10 10 10 5 5 6 7 7.6 8.4 9.1 550 500 454 414 380 Typ. 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 3.135 3.42 3.705 4.085 4.465 3.3 3.6 3.9 4.3 4.7 3.465 3.78 4.095 4.515 4.935 76 69 64 58 53 10 10 9 9 8 400 400 400 400 500 1N4733A 1N4734A 1N4735A 1N4736A 1N4737A 4.845 5.32 5.89 6.46 7.125 5.1 5.6 6.2 6.8 7.5 5.355 5.88 6.51 7.14 7.875 49 45 41 37 34 7 5 2 3.5 4 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 7.79 8.645 9.5 10.45 11.4 8.2 9.1 10 11 12 8.61 9.555 10.5 11.55 12.6 31 28 25 23 21 4.5 5 7 8 9 © 2009 Fairchild Semiconductor Corporation Non-Repetitive Peak Reverse Current IR (A) Min. 1N4728A - 1N4758A Rev. H3 Leakage Current www.fairchildsemi.com 1 1N4728A - 1N4758A — Zener Diodes April 2009 Device Max. Zener Impedance Test Current IZ (mA) ZZ @ IZ ZZK @ Max. () IZK () Leakage Current Non-Repetitive Peak Reverse Current IZK (mA) IR (A) VR (V) IZSM (mA) (Note 2) 700 700 700 750 750 0.25 0.25 0.25 0.25 0.25 5 5 5 5 5 9.9 11.4 12.2 13.7 15.2 344 304 285 250 225 23 25 35 40 45 750 750 750 1000 1000 0.25 0.25 0.25 0.25 0.25 5 5 5 5 5 16.7 18.2 20.6 22.8 25.1 205 190 170 150 135 7 6.5 6 5.5 5 50 60 70 80 95 1000 1000 1500 1500 1500 0.25 0.25 0.25 0.25 0.25 5 5 5 5 5 27.4 29.7 32.7 35.8 38.8 125 115 110 95 90 4.5 110 2000 0.25 5 42.6 80 Min. Typ. 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 12.35 14.25 15.2 17.1 19 13 15 16 18 20 13.65 15.75 16.8 18.9 21 19 17 15.5 14 12.5 10 14 16 20 22 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 20.9 22.8 25.65 28.5 31.35 22 24 27 30 33 23.1 25.2 28.35 31.5 34.65 11.5 10.5 9.5 8.5 7.5 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A 34.2 37.05 40.85 44.65 48.45 36 39 43 47 51 37.8 40.95 45.15 49.35 53.55 1N4758A 53.2 56 58.8 Notes: 1. Zener Voltage (VZ) The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30C ± 1C and 3/8” lead length. 2. 2 Square wave Reverse Surge at 8.3 msec soak time. Top Mark Information Line 1 Line 2 Line 3 Line 4 Line 5 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A Device LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 28 29 30 31 32 A A A A A XY XY XY XY XY 1N4733A 1N4734A 1N4735A 1N4736A 1N4737A LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 33 34 35 36 37 A A A A A XY XY XY XY XY 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 38 39 40 41 42 A A A A A XY XY XY XY XY 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 43 44 45 46 47 A A A A A XY XY XY XY XY 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 48 49 50 51 52 A A A A A XY XY XY XY XY 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A LOGO LOGO LOGO LOGO LOGO 47 47 47 47 47 53 54 55 56 57 A A A A A XY XY XY XY XY 1N4758A LOGO 47 58 A XY © 2009 Fairchild Semiconductor Corporation 1N4728A - 1N4758A Rev. H3 www.fairchildsemi.com 2 1N4728A - 1N4758A — Zener Diodes VZ (V) @ IZ (Note 1) 1st line: F - Fairchild Logo F 2nd line: Device Name - 3rd to 4th characters of device name for 1Nxx series or 4th to 6th characters for BZXyy series 47 3rd line: Device Name - 5th to 6th characters of device name for 1Nxx series or Voltage rating for BZXyy series 36 A 4th line: Device Name - 7th to 8th characters of device name for 1Nxx series or Large Die identification only for BZXyy series 5th line: Date Code - Two Digit - Six Weeks Date Code XY F General Requirements: 1.0 Cathode Band 2.0 First Line: F - Fairchild Logo 3.0 Second Line: Device name - For 1Nxx series: 3rd to 4th characters of the device name. For BZxx series: 4th to 6th characters of the device name. 4.0 Third Line: Device name - For 1Nxx series: 5th to 6th characters of the device name. For BZXyy series: Voltage rating 5.0 Third Line: Device name - For 1Nxx series: 7th to 8th characters of the device name. (the 8th character is the large die identification) For BZXyy series: Large Die Identification character 6.0 Fourth Line: Date Code - Two Digit - Six Weeks Date Code Where: X represents the last digit of the calendar year Y represents the Six weeks numeric code 7.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec). 8.0 Maximum no. of marking lines: 5 9.0 Maximum no. of digits per line: 3 10.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line. 11.0 Marking Font: Arial (Except FSC Logo) 12.0 First character of each marking line must be aligned vertically. 13.0 All device markings must be based on Fairchild device specification. © 2009 Fairchild Semiconductor Corporation 1N4728A - 1N4758A Rev. H3 www.fairchildsemi.com 3 1N4728A - 1N4758A — Zener Diodes Top Mark Information (Continued)