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SMAJ4460 thru SMAJ4496 and SMAJ6485 thru SMAJ6491 1.5 Watt Zener Diodes
SCOTTSDALE DIVISION
DESCRIPTION
This 1.5 watt zener series in a low-profile light-weight plastic surface mount configuration, with stress-relief J-bend contacts, meets or exceeds the electrical performance of the 1N4460 thru 1N4496 and 1N6485 thru 1N6491. It also provides double the overall surge performance by using a larger active die element. This includes ESD protection per IEC61000-4-2, EFT protection per IEC61000-4-4, and higher surge levels defined herein. The low-flat profile provides easier insertion or automatic handling compared to other MELF style packages. Its thermally efficient design lowers junction temperatures and extends operating temperature range before derating begins. Power derates to zero at 150C for these plastic packages.
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
SURFACE MOUNT ZENER
W W W . Microsemi . C O M
DO-214BA or AC (SMAJ)
FEATURES
* * * * * Zener voltages: 3.3 volts to 200 volts Metallurgically bonded Reliability data per JESD22-A108, JESD22-A104, JESD22-A113-B, JESD22-A101-B, and JESD22-A102 Thermally efficient surface mount with J-bends for stress relief (flat handling surface for easier placement) Options for screening in accordance with MIL-PRF19500/406 for JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively to part numbers. For example, designate a MXSMAJ4460 for a JANTX screen.
A P P L I C A T I O N S / B E N E FI T S
* For high reliability voltage regulation in low profile surface mount locations requiring easy placement and strain relief * Light weight for airborne or satellite applications * Superior surge quality to protect from ESD and EFT transients per IEC61000-4-2 and -4-4 and higher surge levels defined herein
MECHANICAL AND PACKAGING
* Molded epoxy package meets UL94V-0 * Terminals: solderable per MIL-STD-750 Method 2026. (max 260 C for 10 sec.) * Body marked with P/N without SMAJ letters (ie. 4460, 4496, 6485, 4460, etc.) * Polarity is indicated by cathode band * Weight: 0.064 grams (approximate) * Tape & Reel packaging per EIA-481-2 with 12 mm tape and 2500 units per reel (13 inch reel)
MAXIMUM RATINGS
* * * * Operating temperature: -55C to +150C Storage temperature: -55C to +150C 1.5 watt steady-state maximum power Thermal resistance, R?JL = 15 C/W
POWER DERATING - OUTLINE - MOUNTING PAD
DIM A B C D E F G DIMENSIONS MILLIMETERS INCHES MIN MAX MIN MAX .052 .103 1.32 2.62 .160 .180 4.06 4.57 .100 .110 2.54 2.79 .194 .216 4.93 5.49 .078 .115 1.98 2.92 .030 .060 0.76 1.52 -.005 -0.13
SMAJ4460 - SMAJ4496 & SMAJ6485 - SMAJ6491
DIMENSION A IS WITHIN DO-214BA BUT HIGHER THAN STANDARD JEDEC OUTLINES..DIMENSION B IS WIDER THAN BOTH JEDEC OUTLINES FOR LOWER THERMAL RESISTANCE
Outline
Mounting Pad
Copyright (c) 2001 MSCXXXX.PDF 4-07-03 REV A
Microsemi
Page 1
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
SMAJ4460 thru SMAJ4496 and SMAJ6485 thru SMAJ6491 1.5 Watt Zener Diodes
SCOTTSDALE DIVISION
ELECTRICAL CHARACTERISTICS @ 25 C (unless otherwise specified)
ZENER VOLTAGE VZ @ IZT MICROSEMI PART NUMBER VOLTS mA NOM. MAX MAX MAX A A OHMS OHMS mA A VOLTS mA TEST CURRENT IZT DYNAMIC IMPEDANCE ZZT = IZT KNEE IMPEDANCE ZZK = IZ K TEST CURRENT IZK REVERSE CURRENT IR @ VR TEST VOLTAGE VR MAXIMUM CONTINOUS CURRENT MAXIMUM MAXIMUM SURGE SURGE CURRENT at CURRENT at 8.3 ms square 8.3 ms square wave wave TA = 25 C TA = 100 C
W W W . Microsemi . C O M
SMAJ6485 SMAJ6486 SMAJ6487 SMAJ6488 SMAJ6489 SMAJ6490 SMAJ6491 SMAJ4460 SMAJ4461 SMAJ4462 SMAJ4463 SMAJ4464 SMAJ4465 SMAJ4466 SMAJ4467 SMAJ4468 SMAJ4469 SMAJ4470 SMAJ4471 SMAJ4472 SMAJ4473 SMAJ4474 SMAJ4475 SMAJ4476 SMAJ4477 SMAJ4478 SMAJ4479 SMAJ4480 SMAJ4481 SMAJ4482 SMAJ4483 SMAJ4484 SMAJ4485 SMAJ4486 SMAJ4487 SMAJ4488 SMAJ4489 SMAJ4490 SMAJ4491 SMAJ4492 SMAJ4493 SMAJ4494 SMAJ4495 SMAJ4496
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 91 100 110 120 130 150 160 180 200
76.0 69.0 64.0 58.0 53.0 49.0 45.0 40.0 37.0 34.0 31.0 28.0 25.0 23.0 21.0 19.0 17.0 15.5 14.0 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 2.0 2.0 1.9 1.7 1.6 1.4 1.2
10 10 9 9 8 7 5 4 2.5 2.5 3 4 5 6 7 8 9 10 11 12 14 16 18 20 25 27 30 40 50 60 70 80 100 130 160 200 250 300 400 500 700 1000 1300 1500
400 400 400 400 500 500 600 200 200 400 400 500 500 550 550 550 600 600 650 650 650 700 700 750 800 850 900 950 1000 1100 1300 1500 1700 2000 2500 3000 3100 4000 4500 5000 6000 6500 7000 8000
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25
50 50 35 5 4 1 .50 10 5 1 .50 .30 .30 .30 .20 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .05 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025 .025
1.0 1.0 1.0 1.0 1.0 1.0 2.0 3.72 4.08 4.50 4.92 5.46 8.0 8.8 9.6 10.4 12.0 12.8 14.4 16.0 17.6 19.2 21.6 24.0 26.4 28.8 31.2 34.4 37.6 40.8 44.8 49.6 54.4 60.4 65.6 72.8 80.0 88.0 96.0 104 120 128 144 160
433 397 366 332 304 280 255 230 210 191 174 157 143 130 119 110 95 90 79 71 65 60 53 48 43 40 37 33 30 28 26 23 21 19 17 16 14 13 12 11 9.5 8.9 7.9 7.2
10 9 7.8 6.8 6 5.2 4.8 4.4 3.6 3.2 2.8 2.4 2.2 1.8 1.6 1.5 1.32 1.20 1.08 .96 .90 .84 .78 .70 .64 .58 .52 .46 .40 .38 .36 .32 .28 .24 .20 .16
8.4 7.8 7.2 6.6 6.0 5.4 5 4.6 4.2 3.8 3.4 3.2 2.8 2.6 2.4 2.2 1.9 1.6 1.58 1.42 1.3 1.2 1.06 .96 .86 .80 .74 .66 .60 .56 .52 .46 .42 .38 .34 .32 .28 .26 .24 .22 .19 .178 .158 .144
SMAJ4460 - SMAJ4496 & SMAJ6485 - SMAJ6491
Notes:
1. 2. 3.
4.
No suffix indicates a 5% tolerance on nominal V Z , C denotes a 2% tolerance, and D denotes a 1% tolerance. Zener voltage (V z) is measured at TL = 30 C. Voltage measurement to be performed 90 seconds after application of dc current. The zener impedance is derived from the 60 Hz ac voltage which results when an ac current having an rms value equal to 10% of the dc zener current (IZT or IZK ). V f at 200 mA 1.2 volts maximum and V f at 1.0 A 1.5 volts maximum.
Copyright (c) 2001 MSCXXXX.PDF 4-07-03 REV A
Microsemi
Page 2
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

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