MLL957B,-1 thru MLL992B,-1 8700 E. Thomas Road Scottsdale, AZ 85252 Phone: (480) 941-6300 Fax: (480) 947-1503 ±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 LEADLESS GLASS ZENER DIODE SURFACE MOUNT 500 mW DC Power Dissipation (See Power Derating Curve In Figure 1) -55°C to +175°C Operating and Storage Junction Temperature 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 DIM A B U PD = Power Dissipation 1.2 MILLIMETERS MIN MAX 3.30 3.70 1.60 1.70 0.41 0.55 MAX .146 .067 .022 DO-213AA 1.0 Mechanical Characteristics 0.8 Dash 1 Metallurgically Bonded 0.6 0.4 Case: Hermetically sealed glass with solder contact tabs at each end. Non-Dash 1 0.2 0 INCHES MIN .130 .063 .016 Finish: All external surfaces are corrosion resistant, readily solderable. 0 20 40 60 80 100 120 140 160 T EC End Cap Case Temperature (ºC) FIGURE 1 180 200 Polarity: Banded end is cathode. Thermal Resistance: 100°C/Watt Maximum junction to end caps for "-1" construction and 150°C/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 @ 25°C MICROSEMI PART NUMBER ** 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 NOMINAL ZENER VOLTAGE VZ @ IzT (NOTE 1) ZENER TEST CURRENT IzT 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 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 MAX ZENER IMPEDANCE (Note 3) ZZT @ IZT 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 ZZK @ IZK 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 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 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 MAX. REVERSE LEAKAGE CURRENT IZ (SURGE) IR 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 µA 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 αVZ %/°°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 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 ½ 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 TYPICAL CAPACITANCE IN PICOFARADS 300 200 100 90 80 70 60 50 40 30 20 At Zero Volts 10 9 8 7 6 5 4 3 At - 2 Volts (VR ) 2 1 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