Transys Electronics L I M I T E D 1N957B to 1N977B DO- 35 Glass Axial Package Hermetically Sealed Glass Package Zener Diodes ABSOLUTE MAXIMUM RATINGS (Ta=25ºC unless specified otherwise ) DESCRIPTION Zener Voltage Steady State Power Dissipation Derating Factor above 50ºC Operating and Storage Temperature VALUE UNIT 6.8 to 47 400 3.2 -65 to +175 V mW mW/ºC ºC ELECTRICAL CHARACTERISTICS (Ta=25ºC unless specified otherwise ) Device * Nominal (Note 1) Zener Voltage VZ @ IZT 1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B 1N964B 1N965B 1N966B 1N967B 1N968B 1N969B 1N970B 1N971B 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B (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 Zener Test Current IZT (mA) 18.5 16.5 15 14 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 Max Zener Impedance ZZT @ IZT (Ω Ω) 4.5 5.5 6.5 7.5 8.5 9.5 11.5 13 16 17 21 25 29 33 41 49 58 70 80 93 105 Max Reverse Leakage Current ZZK @ ZZK IZK (Ω Ω) 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 (mA) 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 Note (1) : Part No. suffix specifies the Tolerance of VZ No Suffix = +/- 20% Suffix A = +/- 10% * Pulse Condition : 20mS < tp 50mS, Duty Cycle <2% IR @ VR (µ µ A) 150 75 50 25 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 VF < 1.5V max @ IF=200mA Max DC Max. Surge Zener Current Current (Recurrent) IZ ( Surge) IZM (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 Suffix B = +/- 5% (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 (mA) 300 275 250 225 200 175 160 150 130 120 110 100 90 80 70 65 60 55 46 44 40 Max Temp. Coefficient Voltage Vz % / ºC +0.05 +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 1N957B to 1N977B DO- 35 Glass Axial Package DO-35 Hermetically Sealed Glass Axial Package B A D C A NOTES 1. Cathode is marked by Band. 2. All dimensions are in mm. DIM MIN MAX A 25.40 — B 3.03 4.44 C 0.46 0.56 D 1.52 2.29 1.05 MAX. DO-35, 52mm Taping Specification 5.50 4.50 54.00 50.00 CENTRE LINE ± 1.05 1.5 R MAX. 52 mm Taping Specification 1. T & A indicates Axial Tape & Ammo packing (52 mm Tape Spacing). 2. 300 mm (min) leader tape on every spool. 3. No. of empty places allowed 0.25% without consecutive empty places. 4. Ends of leads shall preferably not protrude beyond the tapes. 5. Components shall be held sufficiently in the tape or tapes so that they can not come free in normal handling. 6.0 5.0 LEADER 52.0 11 DIODES 48.0 All dimensions in mm. ED FE 6.0 ±1. 0 52 ±2 .0 .0 6.0 ±1. 0 85.0 mm TAPES .0 m 255 LABEL 73. 5 m DO-35:- 5000 pcs./Ammo Pack DIODE AMMO PACK mm On request also available in 26 mm Tape and Ammo Pack Packing Detail PACKAGE DO-35 T&A STANDARD PACK INNER CARTON BOX OUTER CARTON BOX Details Net Weight/Qty Size Qty Size 5K/ammo box 0.88 kg/5K pcs 10" x 3.5" x 3.5" 5K 12.7" x 12.7" x 20" Qty Gr Wt 125K 25 kgs