Absolute Maximum Ratings * Tolerance = 5% TA = 25C unless otherwise noted Symbol PD Parameter Power Dissipation @ TL 75C, Lead Length = 3/8" TJ, TSTG Operating and Storage Temperature Range Value 500 Units mW 4.0 mW/C -65 to +200 C Derate above 75C * These ratings are limiting values above which the serviceability of the diode may be impaired. DO-35 Glass case COLOR BAND DENOTES CATHODE Electrical Characteristics Device TA=25C unless otherwise noted VZ (V) @ IZ = 20mA (Note 1) 1N4370A 1N4371A 1N4372A 1N746A 1N747A Min. 2.28 2.57 2.85 3.14 3.42 Typ. 2.4 2.7 3.0 3.3 3.6 Max. 2.52 2.84 3.15 3.47 3.78 1N748A 1N749A 1N750A 1N751A 1N752A 3.71 4.09 4.47 4.85 5.32 3.9 4.3 4.7 5.1 5.6 1N753A 1N754A 1N755A 1N756A 1N757A 5.89 6.46 7.13 7.79 8.65 1N758A 1N759A 9.50 11.40 ZZ () @ IZ = 20mA IZM (mA) IR (A) @ VR = 1V 30 30 29 28 24 150 135 120 110 100 Ta = 25C 100 75 50 10 10 4.10 4.52 4.94 5.36 5.88 23 22 19 17 11 95 85 75 70 65 10 2 2 1 1 30 30 30 20 20 6.2 6.8 7.5 8.2 9.1 6.51 7.14 7.88 8.61 9.56 7 5 6 8 10 60 55 50 45 40 0.1 0.1 0.1 0.1 0.1 20 20 20 20 20 10 12 10.5 12.6 17 30 35 30 0.1 0.1 20 20 (Note 2) Ta = 125C 200 150 100 30 30 VF Forward Voltage = 1.5V Max @ IF = 200mA 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. Maximum Zener Current Ratings (IZM) The maximum current handling capability on a worst case basis is limited by the actual zener voltage at the operation point and the power derating curve. Rev. D1 www.fairchildsemi.com Zeners 1N4370A - 1N4372A 1N746A - 1N759A Zeners 1N4370A - 1N4372A 1N746A - 1N759A Zeners 1N4370A - 1N4372A 1N746A - 1N759A Top Mark Information Device 1N4370A 1N4371A 1N4372A 1N746A 1N747A Line 1 LOGO LOGO LOGO LOGO LOGO Line 2 37 37 37 46 47 Line 3 0A 1A 2A A A 1N748A 1N749A 1N750A 1N751A 1N752A LOGO LOGO LOGO LOGO LOGO 48 49 50 51 52 A A A A A 1N753A 1N754A 1N755A 1N756A 1N757A LOGO LOGO LOGO LOGO LOGO 53 54 55 56 57 A A A A A 1N758A 1N759A LOGO LOGO 58 59 A A Rev. D1 www.fairchildsemi.com F 1st line: F - Fairchild Logo 50 2nd line: Device Name - 4th to 5th characters of the device name. or 5th to 6th characters for BZXyy series A 3rd line: Device Name - 6th to 7th characters of the device name. or Voltage rating for BZXyy series General Requirements: 1.0 Cathode Band 2.0 First Line: F - Fairchild Logo 3.0 Second Line: Device name - For 1Nxx series: 4th to 5th characters of the device name. For BZxx series: 5th to 6th characters of the device name. 4.0 Third Line: Device name - For 1Nxx series: 6th to 7th characters of the device name. For BZXyy series: Voltage rating 5.0 Maximum no. of marking lines: 3 6.0 Maximum no. of digits per line: 2 7.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line. 8.0 Marking Font: Arial (Except FSC Logo) 9.0 First character of each marking line must be aligned vertically. Rev. D1 www.fairchildsemi.com Zeners 1N4370A - 1N4372A 1N746A - 1N759A Top Mark Information (Continued) TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. 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Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor. The datasheet is for reference information only. Rev. I39 (c) 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com