1N4728AP thru 1N4764AP,e3 (PLASTIC) Silicon 1 Watt Zener Diodes SCOTTSDALE DIVISION APPEARANCE The popular 1N4728AP thru 1N4764AP series of 1.0 watt Zeners provides voltage regulation in a selection from 3.3 to 100 volts in 5% tolerances with other tighter tolerances also available as identified by different suffix letters in the part number. These plastic encapsulated Zeners are moisture classified as Level 1 with no dry pack required. They are also available in various military screening levels by adding a prefix identifier as described in the Features below. These plastic molded Zeners with a P suffix provide a lower thermal resistance compared to the glass-body (G suffix) option for these same JEDEC part numbers. Both package options are available by Microsemi in RoHS Compliant devices with an “e3” suffix. Microsemi also offers numerous other Zener products to meet higher and lower power and test current applications. DO-41 or DO-204AL (Plastic) WWW . Microsemi .C OM DESCRIPTION IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES APPLICATIONS / BENEFITS • JEDEC registered 1N4728A to 1N4764A • Extensive voltage selection from 3.3 to 100 V • Options for screening in accordance with MIL-PRF19500 for JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively to part numbers. • Surface mount equivalents available as SMAJ4728A to SMAJ4764A and MLL4728A to MLL4764A (consult factory for others) • RoHS Compliant devices available by adding “e3” suffix • • • • • • MAXIMUM RATINGS • • • • • MECHANICAL AND PACKAGING º Power dissipation at 25 C: 1.0 watts (also see derating in Figure 1). Operating and Storage temperature: -65ºC to +150ºC º Thermal Resistance: 45 C/W junction to lead at 3/8 (10 mm) lead length from body, or 105ºC/W junction to ambient when mounted on FR4 PC board (1 oz Cu) with 4 mm2 copper pads and track width 1 mm, length 25 mm o Steady-State Power: 1.0 watts at TL < 105 C 3/8 º inch (10 mm) from body or at TA < 45 C when mounted on FR4 PC board as described for thermal resistance above (also see Figure 1) Forward voltage @200 mA: 1.2 volts (maximum) Solder Temperatures: 260 ºC for 10 s (max) Copyright © 2005 10-18-2005 REV C • • • • • • • CASE: Void-free transfer molded thermosetting epoxy body meeting UL94V-0 TERMINALS: Tin-Lead (Sn/Pb) or RoHS Compliant annealed matte-Tin plating solderable per MIL-STD750, method 2026 POLARITY: Cathode indicated by band. Diode to be operated with the banded end positive with respect to the opposite end for Zener regulation MARKING: Part number TAPE & REEL option: Standard per EIA-296 (add “TR” suffix to part number) WEIGHT: 0.7 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 1N4728AP-1N4764AP,e3 • Regulates voltage over a broad operating current and temperature range Standard voltage tolerances are plus/minus 5% with A suffix and 10 % with no suffix identification Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively Flexible axial-lead mounting terminals Nonsensitive to ESD per MIL-STD-750 Method 1020 Moisture classification is Level 1 per IPC/JEDEC JSTD-020B with no dry pack required 1N4728AP thru 1N4764AP,e3 (PLASTIC) Silicon 1 Watt Zener Diodes SCOTTSDALE DIVISION JEDEC TYPE NUMBER (Note 1) 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A 1N4735A 1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A 1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A 1N4756A 1N4757A 1N4758A 1N4759A 1N4760A 1N4761A 1N4762A 1N4763A 1N4764A ZENER VOLTAGE TEST CURRENT (Vz) (IZT) (Note 4) VOLTS 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 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 mA 76 69 64 58 53 49 45 41 37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 MAXIMUM DYNAMIC IMPEDANCE MAXIMUM REVERSE CURRENT (ZZT @ IZT) (Note 2) OHMS 10 10 9 9 8 7 5 2 3.5 4.0 4.5 5.0 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 TEST VOLTAGE MAXIMUM REGULATOR CURRENT MAXIMUM KNEE IMPEDANCE (IZK) MAXIMUM (SURGE) CURRENT (IR @ VR) (IZM) (ZZK @ IZK) (ISM) μA 100 100 50 10 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 TA = 50 C mA 276 252 234 217 193 178 162 146 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9 (Note 2) OHMS 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 mA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 (Note 3) mA 1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45 (VR) VOLTS 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 76.0 o TEST CURRENT WWW . Microsemi .C OM ELECTRICAL CHARACTERISTICS* *JEDEC Registered Data NOTES: 1. 2. 4. Copyright © 2005 10-18-2005 REV C Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 2 1N4728AP-1N4764AP,e3 3. The JEDEC 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. Also add a P suffix for designating plastic construction, e.g. 1N4764AP (G suffix designates glass body options described by separate data sheet). The Zener impedance is derived from the 60 Hz ac voltage that 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 ensure a sharp knee on the breakdown curve and eliminate unstable units. See MicroNote 202 for zener impedance variation with different operating currents. o The reverse surge current is measured at 25 C ambient using a ½ square wave or equivalent sine wave pulse 1/120 second duration superimposed on IZT. Zener voltage (VZ) is measured at TL = 25ºC (+8, -2ºC) and 90 seconds after application of dc current. 1N4728AP thru 1N4764AP,e3 (PLASTIC) Silicon 1 Watt Zener Diodes SCOTTSDALE DIVISION TA on FR4 PC board o TL, LEAD TEMP. ( C) 3/8” from body or TA on FR4 PC Board FIGURE 1 Power Derating Curve TEMPERATURE COEFFICIENT mV/oC RATED POWER DISSIPATION - W TL WWW . Microsemi .C OM GRAPHS NOMINAL ZENER VOLTAGE (VOLTS) FIGURE 2 Temp. Coeff. vs. Zener Voltage FIGURE 3 Capacitance vs. Voltage for Representative Types PACKAGE DIMENSIONS (DO-41 or DO-204AL) 1N4728AP-1N4764AP,e3 Copyright © 2005 10-18-2005 REV C Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 3