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| 8700 E. Thomas Road Scottsdale, AZ 85252 Phone: (480) 941-6300 Fax: (480) 947-1503 MLL957B,-1 thru MLL992B,-1 1% and 2% Versions "C" and "D" Available Features * * * * * Leadless Package For Surface Mount Technology Ideal For High Density Mounting Voltage Range 6.8 To 200 Volts Hermetically Sealed, Double Slug Glass Construction Metallurgically Bonded Construction Available as Dash One. Available in JAN, JTX, JTXV-1 to Mil-PRF-19500/117 (UR-1 Suffix) * Maximum Ratings 500 mW DC Power Dissipation (See Power Derating Curve In Figure 1) -55C to +175C Operating and Storage Junction Temperature LEADLESS GLASS ZENER DIODE SURFACE MOUNT Package Dimensions In Inches Application This surface mountable zener diode series is similar to the 1N957B thru 1N992B in the DO-35 equivalent package except that it meets the new JEDEC surface mount outline DO-213AA. It is an ideal selection for applications of high density and low parasitic requirements. Due to its glass hermetic qualities, it may also be considered for high reliability applications. Electrical Characteristics (see next page) STEADY STATE POWER DERATING 1.4 1.2 DIM A B U MILLIMETERS MIN MAX 3.30 3.70 1.60 1.70 0.41 0.55 INCHES MIN .130 .063 .016 MAX .146 .067 .022 PD = Power Dissipation 1.0 DO-213AA Dash 1 Metallurgically Bonded 0.8 0.6 Mechanical Characteristics Case: Hermetically sealed glass with solder contact tabs at each end. Finish: All external surfaces are corrosion resistant, readily solderable. 0.4 Non-Dash 1 0.2 0 0 20 40 60 80 100 120 140 160 180 200 T EC End Cap Case Temperature (C) FIGURE 1 Polarity: Banded end is cathode. Thermal Resistance: 100C/Watt Maximum junction to end caps for "-1" construction and 150C/W maximum junction to end caps for commercial. Mounting Position: Any Weight: 0.04 gm MLL957B-92B.PDF 05-02-00 MLL957B,-1 thru MLL992B,-1 1% and 2% Versions "C" and "D" Available Electrical Characteristics @ 25C MICROSEMI PART NUMBER NOMINAL ZENER VOLTAGE VZ @ IzT (NOTE 1) VOLTS 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 ZENER TEST CURRENT IzT MAX ZENER IMPEDANCE (Note 3) MAX. DC ZENER CURRENT IZM (NOTE 4) mA 55 50 45 41 38 32 31 28 25 24 20 18 16 15 13 12 11 10 9.5 8.8 7.9 7.4 6.8 6.0 5.5 5.0 4.6 4.1 3.7 3.3 3.1 2.7 2.4 2.2 2.0 1.8 MAX. SURGE CURRENT (RECURRENT) (NOTE 4 IZ (SURGE) mA 300 275 250 225 200 175 160 150 130 120 110 100 90 80 70 65 60 55 46 44 40 37 35 30 28 26 23 21 18 16 15 13 12 11 10 9 MAX. REVERSE LEAKAGE CURRENT IR A 150 75 50 25 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 5 5 5 5 5 5 5 VR VOLTS 5.2 5.7 6.2 6.9 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 83.6 91.2 98.8 114.0 121.6 136.8 152.0 MAX.TEMP COEFFICIENT ZZT @ IZT mA 18.5 16.5 15.0 14.0 12.5 11.5 10.5 9.5 8.5 7.8 7.0 6.2 5.6 5.2 4.6 4.2 3.8 3.4 3.2 3.0 2.7 2.5 2.2 2.0 1.8 1.7 1.5 1.4 1.3 1.1 1.0 0.95 0.85 0.80 0.68 0.65 OHMS 4.5 5.5 6.5 7.5 8.5 9.5 11.5 13.0 16 17 21 25 29 33 41 49 58 70 40 93 105 125 150 185 230 270 330 400 500 750 900 1100 1500 1700 2200 2500 OHMS 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 4000 4500 5000 6000 6500 7100 8000 ZZK @ IZK mA 1.0 .5 .5 .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 VZ %/C +0.050 +0.058 +0.065 +0.068 +0.075 +0.076 +0.077 +0.079 +0.082 +0.083 +0.085 +0.086 +0.087 +0.088 +0.090 +0.091 +0.092 +0.093 +0.094 +0.095 +0.095 +0.096 +0.096 +0.097 +0.097 +0.098 +0.098 +0.099 +0.110 +0.110 +0.110 +0.110 +0.110 +0.110 +0.110 +0.110 ** MLL957B MLL958B MLL959B MLL960B MLL961B MLL962B MLL963B MLL964B MLL965B MLL966B MLL967B MLL968B MLL969B MLL970B MLL971B MLL972B MLL973B MLL974B MLL975B MLL976B MLL977B MLL978B MLL979B MLL980B MLL981B MLL982B MLL983B MLL984B MLL985B MLL986B MLL987B MLL988B MLL989B MLL990B MLL991B MLL992B Note 1 Voltage measurements to be performed 20 seconds after application of dc test current. Note 2 Zener impedance derived by superimposing on IZT at 60 Hz rms ac current equal to 10% IZT. Note 3 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 at 500 mW. ** Ordering Information: 1) Commercial: MLL957B thu MLL992B orMLL957B-1 thru MLL992B-1 2) Military: JAN, JANTX, or JANTXV 1N962BUR-1 thru 1N992BUR-1 3) Tight tolerance "C" suffix = 2%, "D" suffix = 1% 4) Surge is square wave or equivalent 1/2 sine wave pulse of 1/120 second duration. MLL957B-92B.PDF 05-02-00 MLL957B,-1 thru MLL992B,-1 1% and 2% Versions "C" and "D" Available CAPACITANCE vs VZ CURVE 300 200 100 90 80 70 60 50 40 30 20 At Zero Volts 10 9 8 7 6 5 4 3 2 1 At - 2 Volts (VR ) TYPICAL CAPACITANCE IN PICOFARADS 0 20 40 60 80 100 120 140 160 180 200 220 ZENER VOLTAGE VZ FIGURE 2 CAPACITANCE VS ZENER VOLTAGE (TYPICAL) MLL957B-92B.PDF 05-02-00 |
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