1N746 - 759A, e3 WWW.Microsemi .COM 1N4370- 4372A, e3 (DO-35) 1N746 thru 1N759A, -1, e3 and 1N4370 thru 1N4372A, -1, e3 DO-35 Silicon 500 mW Zener Diodes SCOTTSDALE DIVISION DESCRIPTION APPEARANCE The popular 1N746 thru 1N759A and 1N4370 thru 1N4372A series of 0.5 DO-35 watt Zener Voltage Regulators provides a selection from 2.4 to 12 volts in (DO-204AH) standard 5% or 10% tolerances as well as tighter tolerances identified by different suffix letters on the part number. These glass axial-leaded DO-35 Zeners are also available with an internal-metallurgical-bond option by adding a -1 suffix as well as RoHS Compliant by adding an e3 suffix. Microsemi also offers numerous other Zener products to meet higher and lower power applications. IMPORTANT: For the most current data, consult MICROSEMIs website: 1N746 - 759A, e3 WWW.Microsemi .COM 1N4370- 4372A, e3 (DO-35) o TEMPERATURE COEFFICIENT mV/ C 1N746 thru 1N759A, -1, e3 and 1N4370 thru 1N4372A, -1, e3 DO-35 Silicon 500 mW Zener Diodes SCOTTSDALE DIVISION o ELECTRICAL CHARACTERISTICS* 25 C NOMINAL ZENER MAXIMUM MAXIMUM REVERSE MAXIMUM TYPICAL ZENER TEST ZENER ZENER TEMP COEFF. CURRENT I JEDEC R VOLTAGE CURRENT IMPEDANCE CURRENT OF ZENER TYPE NO. V = 1 VOLT R VOLTAGE V I I Z I I Z ZT ZT ZT ZT ZM (NOTE1) (NOTE 2) (NOTE 3) (NOTE 4) 25C +150C VZ o VOLTS mA OHMS A A mA %/ C 1N4370 2.4 20 30 100 200 150 -.085 1N4371 2.7 20 30 75 150 135 -.080 1N4372 3.0 20 29 50 100 120 -.075 1N746 3.3 20 28 10 30 110 -.066 1N747 3.6 20 24 10 30 100 -.058 1N748 3.9 20 23 10 30 95 -.046 1N749 4.3 20 22 2 30 85 -.033 1N750 4.7 20 19 2 30 75 -.015 1N751 5.1 20 17 1 20 70 +/-.010 1N752 5.6 20 11 1 20 65 +.030 1N753 6.2 20 7 .1 20 60 +.049 1N754 6.8 20 5 .1 20 55 +.053 1N755 7.5 20 6 .1 20 50 +.057 1N756 8.2 20 8 .1 20 45 +.060 1N757 9.1 20 10 .1 20 40 +.061 1N758 10.0 20 17 .1 20 35 +.062 1N759 12.0 20 30 .1 20 30 +.062 * JEDEC Registered Data NOTE 1: Standard tolerance on JEDEC types shown is +/- 10%. Suffix letter A denotes +/- 5% tolerance suffix letter C denotes +/- 2% and suffix letter D denotes +/- 1% tolerance. NOTE 2: Voltage measurements to be performed 20 seconds after application of dc test current. NOTE 3: Zener impedance derived by superimposing on I , a 60 cps, rms ac current equal to 10% I (2mA ac). See MicroNote 202 for ZT ZT typical zener Impedance variation with different operating currents. NOTE 4: Allowance has been made for the increase in V due to Z and for the increase in junction temperature as the unit approaches Z Z thermal equilibrium at the power dissipation of 400 mW. GRAPHS o T LEAD TEMPERATURE ( C) 3/8 FROM BODY or NOMINAL ZENER VOLTAGE (VOLTS) L T on FR4 PC BOARD A FIGURE 1 FIGURE 2 POWER DERATING CURVE ZENER VOLTAGE TEMPERATURE COEFFICIENT vs. ZENER VOLTAGE Copyright 2005 Microsemi Page 2 10-18-2005 REV C Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 RATED POWER DISSIPATION - mW TEMPERATURE COEFFICIENT