1N746UR-1 thru 1N759AUR-1 and 1N4370UR-1 thru 1N4372AUR-1 (or MLL746-1 thru MLL759A-1 and MLL4370-1 thru MLL4372A-1) SCOTTSDALE DIVISION Surface Mount 500 mW Zener Diodes APPEARANCE The 1N746UR-1 thru 1N759AUR-1 and 1N4370UR-1 thru 1N4372AUR-1 series of 0.5 watt Zener Voltage Regulators provides a surface mount equivalent to the popular JEDEC registered 1N746 to 1N759A and 1N4370 to 1N4372A for 2.4 to 12 volts in standard 5% or 10% tolerances as well as tighter tolerances identified by different suffix letters on the part number. These glass surface mount DO-213AA Zeners have internal-metallurgicalbonding and are also available in JAN, JANTX, and JANTXV military qualifications. Microsemi also offers numerous other Zener products to meet higher and lower power applications. DO-213AA IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com FEATURES * * * * * APPLICATIONS / BENEFITS Surface mount equivalents to the JEDEC registered 1N746 thru 1N759A and 1N4370 thru 1N4372A series Internal metallurgical bonding Also available in JAN, JANTX, and JANTXV qualifications per MIL-PRF-19500/127 by adding the JAN, JANTX, or JANTXV prefixes to part numbers for desired level of screening; (e.g. JANTX1N751AUR-1, JANTXV1N758CUR-1, etc.) Axial-leaded equivalents also available in DO-35 including JAN, JANTX, and JANTXV military qualified options to MIL-PRF-19500/127; e.g. JANTX1N753A-1 (see separate data sheet) DO-7 glass body axial-leaded Zener equivalents are also available MAXIMUM RATINGS * * * * * * * * * * Regulates voltage over a broad operating current and temperature range Selection from 2.4 to 12 V Hermetically sealed surface mount package Standard voltage tolerances are plus/minus 5% with A suffix identification and 10 % with no suffix Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively Nonsensitive to ESD per MIL-STD-750 Method 1020 Minimal capacitance (see Figure 2) Inherently radiation hard as described in Microsemi MicroNote 050 MECHANICAL AND PACKAGING Operating and Storage temperature: -65 C to +175 C Thermal Resistance: 100 C/W junction to end or 250C/W junction to ambient when mounted on FR4 PC board (1 oz Cu) with recommended footprint (see last page) Steady-State Power: 0.5 watts at end cap temperature TEC < 125oC or 0.5 watts at ambient TA < 50 C when mounted on FR4 PC board as described for thermal resistance above (also see Figure 2) Forward voltage @200 mA: 1.1 volts Solder Temperatures: 260 C for 10 s (max) Copyright 2003 11-03-2003 REV 0 * * * * * * * * CASE: Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF style package TERMINALS: End caps tin-lead plated solderable per MIL-STD-750, method 2026 POLARITY: Cathode indicated by band where diode is to be operated with the banded end positive with respect to the opposite end for Zener regulation MARKING: cathode band only TAPE & REEL option: Standard per EIA-481-B with 12 mm tape, 2000 per 7 inch reel or 5000 per 13 inch reel (add "TR" suffix to part number) WEIGHT: 0.04 grams See package dimensions on last page Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 1N746UR-1 -759AUR-1 1N4370UR-1 - 4372AUR-1 * * WWW . Microsemi .C OM DESCRIPTION 1N746UR-1 thru 1N759AUR-1 and 1N4370UR-1 thru 1N4372AUR-1 (or MLL746-1 thru MLL759A-1 and MLL4370-1 thru MLL4372A-1) SCOTTSDALE DIVISION Surface Mount 500 mW Zener Diodes INDUSTRY PART NUMBER (NOTES 1 & 5) 1N4370UR-1 1N4371UR-1 1N4372UR-1 1N746UR-1 1N747UR-1 1N748UR-1 1N749UR-1 1N750UR-1 1N751UR-1 1N752UR-1 1N753UR-1 1N754UR-1 1N755UR-1 1N756UR-1 1N757UR-1 1N758UR-1 1N759UR-1 NOMINAL ZENER VOLTAGE VZ @ IZT (NOTE 2) VOLTS 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10.0 12.0 ZENER TEST CURRENT MAXIMUM ZENER IMPEDANCE ZZT @ IZT (NOTE 3) OHMS 30 30 29 28 24 23 22 19 17 11 7 5 6 8 10 17 30 IZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 MAXIMUM REVERSE CURRENT IR @ VR = 1 VOLT @25C A 100 75 50 10 10 10 2 2 1 1 .1 .1 .1 .1 .1 .1 .1 @+150C A 200 150 100 30 30 30 30 30 20 20 20 20 20 20 20 20 20 MAXIMUM ZENER CURRENT IZM (NOTE 4) mA 150 135 120 110 100 95 85 75 70 65 60 55 50 45 40 35 30 TYPICAL TEMP COEFF. OF ZENER VOLTAGE VZ o %/ C -.085 -.080 -.075 -.066 -.058 -.046 -.033 -.015 +/-.010 +.030 +.049 +.053 +.057 +.060 +.061 +.062 +.062 WWW . Microsemi .C OM ELECTRICAL CHARACTERISTICS* @ 25oC * JEDEC Registered Data NOTE 1: Standard tolerance on 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 IZT, a 60 cps, rms ac current equal to 10% IZT (2 mA ac). See MicroNote 202 for typical zener Impedance variation with different operating currents. NOTE 4: Allowance has been made for the increase in VZ due to ZZ and for the increase in junction temperature as the unit approaches thermal equilibrium at the power dissipation of 400 mW. NOTE 5: These may be ordered as either 1N4370UR-1 thru 1N4372AUR-1 and 1N746UR-1 thru 1N758AUR-1, or as MLL4370-1 thru MLL4372A-1 and MLL746-1 thru MLL758A-1. For military types, use the 1NxxxUR-1 format and also include JAN, JANTX, or JANTXV prefix for desired screening level, e.g. JANTX1N4370UR-1, JANTXV1N746AUR-1, JANTXV1N758UR-1, etc. Typical Capacitance in Picofarads (pf) TEC TA o TA TEC End Cap Temperature ( C), or Ambient Temperature on FR4 PC BOARD Zener Voltage VZ FIGURE 2 CAPACITANCE vs. ZENER VOLTAGE (TYPICAL) FIGURE 1 POWER DERATING CURVE Copyright 2003 11-03-2003 REV 0 1N746UR-1 -759AUR-1 1N4370UR-1 - 4372AUR-1 RATED POWER DISSIPATION - mW GRAPHS Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2 1N746UR-1 thru 1N759AUR-1 and 1N4370UR-1 thru 1N4372AUR-1 (or MLL746-1 thru MLL759A-1 and MLL4370-1 thru MLL4372A-1) SCOTTSDALE DIVISION Surface Mount 500 mW Zener Diodes WWW . Microsemi .C OM PACKAGE DIMENSIONS DIM A B C INCHES MIN MAX 0.063 0.067 0.130 0.146 0.016 0.022 MILLIMETERS MIN MAX 1.60 1.70 3.30 3.70 0.41 0.55 PAD LAYOUT A B C INCHES .200 .055 .080 mm 5.08 1.40 2.03 1N746UR-1 -759AUR-1 1N4370UR-1 - 4372AUR-1 Copyright 2003 11-03-2003 REV 0 Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 3