BZX79 SERIES SILICON PLANAR ZENER DIODES FEATURES min. 1.083 (27.5) The Zener voltages are graded according to the international E 24 standard. Higher Zener voltages and 1% tolerance available on request. max. ∅.079 (2.0) Cathode Mark min. 1.083 (27.5) max. .150 (3.8) DO-35 Diodes available in these tolerance series: ±2% BZX79-B ±3% BZX79-F ±5% BZX79-C max. ∅.020 (0.52) Dimensions in inches and (millimeters) MECHANICAL DATA Case: DO-35 Glass Case Weight: approx. 0.13 g MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature 8unless otherwise specified SYMBOL VALUE UNIT Ptot 500(1) mW Junction Temperature Tj -65 to 200 °C Storage Temperature Range TS -65 to + 200 °C Continuous Forward Current IF 250 mA PZSM 40 Watts Zener Current (see Table “Characteristics”) Power Dissipation at Tamb = 25°C Peak reverse power dissipation (non-repetitive) tp=100ms, square wave Characteristics at Tamb = 25°C Thermal Resistance Junction to Ambient Air Forward Voltage at IF = 10 mA SYMBOL MIN. TYP. MAX. UNIT RthJA – – 0.3(1) °C/W VF – – 0.9 Volts NOTES: (1) Valid provided that leads are kept at ambient temperature at a distance of 8mm from case. 12/10/98 BZX79 SERIES ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Type Dynamic resistance y = B for ±2%VZ at y = F for ±3%VZ IZ = 5 mA y = C for ±5%VZ f = 1 kHZ at IZ = 1 mA f = 1 kHZ Temp coefficient of Zener Voltage at IZ = 5 mA ∝ mVZ %/K Reverse leakage Current IR nA at VR V Admissible Zener current(2) Capacitance VR =0 f=1 MHZ Non-Repetitive Peak Reverse Currrent at tp = 100µs IZ (mA) (pF) max. IZSM (A) rzj Ω max. rzj Ω max min. max. BZX79 – y2V4 100 < 600 – 0.08 – 0.06 50,000 1 167 450 6.0 BZX79 – y2V7 100 < 600 – 0.08 – 0.06 20,000 1 135 450 6.0 BZX79 – y3V0 95 < 600 – 0.08 – 0.06 10,000 1 125 450 6.0 BZX79 – y3V3 95 < 600 – 0.08 – 0.05 5,000 1 115 450 6.0 BZX79 – y3V6 90 < 600 – 0.08 – 0.04 5,000 1 105 450 6.0 BZX79 – y3V9 90 < 600 – 0.07 – 0.03 3,000 1 95 450 6.0 BZX79 – y4V3 90 < 600 – 0.04 – 0.01 3,000 1 90 450 6.0 BZX79 – y4V7 80 500 – 0.03 +0.01 3,000 1 85 300 6.0 BZX79 – y5V1 60 480 – 0.02 +0.05 2,000 1 80 300 6.0 BZX79 – y5V6 40 400 – 0.01 +0.06 1,000 1 70 300 6.0 BZX79 – y6V2 10 150 +0.07 3,000 2 64 200 6.0 BZX79 – y6V8 15 80 +0.01 +0.08 2,000 3 58 200 6.0 BZX79 – y7V5 15 80 +0.01 +0.09 1,000 5 53 150 4.0 BZX79 – y8V2 15 80 +0.01 +0.09 700 6 47 150 4.0 BZX79 – y9V1 15 100 +0.02 +0.10 500 7 43 150 3.0 BZX79 – y10 20 150 +0.03 +0.11 200 7.5 40 90 3.0 BZX79 – y11 20 150 +0.03 +0.11 100 8.5 36 85 2.5 BZX79 – y12 25 150 +0.03 +0.11 100 9 32 85 2.5 BZX79 – y13 30 170 +0.03 +0.11 100 10 29 80 2.5 BZX79 – y15 30 200 +0.03 +0.11 50 11 27 75 2.0 BZX79 – y16 40 200 +0.03 +0.11 50 12 24 75 1.5 BZX79 – y18 45 225 +0.03 +0.11 50 14 21 70 1.5 BZX79 – y20 55 225 +0.03 +0.11 50 15 20 60 1.5 BZX79 – y22 55 250 +0.03 +0.11 50 17 18 60 1.3 BZX79 – y24 70 250 +0.04 +0.12 50 18 16 55 1.3 BZX79 – y27 80(3) 300(4) +0.04(3) +0.12 50 20 14 50 1.0 BZX79 – y30 80(3) 300(4) +0.04(3) +0.12 50 22 13 50 1.0 BZX79 – x33 (3) 80 (4) 325 +0.04(3) +0.12 50 24 12 45 0.9 BZX79 – x36 90(3) 350(4) +0.04(3) +0.12 50 27 11 45 0.8 BZX79 – x39 130(3) 350(4) +0.04(3) +0.12 50 28 10 45 0.7 BZX79 – x43 150(3) 375(4) +0.04(3) +0.12 50 32 9.2 40 0.6 BZX79 – x47 170(3) 375(4) +0.04(3) +0.12 50 35 8.5 40 0.5 BZX79 – x51 180(3) 400(4) +0.04(3) +0.12 50 38 7.8 40 0.4 BZX79 – x56 200(3) 425(4) typ. +0.1(3) 50 39 7.1 40 0.3 BZX79 – x62 215(3) 450(4) typ. +0.1(3) 50 43 6.4 35 0.3 BZX79 – x68 (3) 240 (4) 475 typ. +0.1(3) 50 48 5.8 35 0.3 BZX79 – x75 255(3) 500(4) typ. +0.1(3) 50 53 5.3 35 0.2 0 NOTES: (1) Tested with pulses tp = 5 ms. (2) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. (3) at IZ = 2.0 mA (4) at IZ = 0.5 mA Y = Zener voltage tolerance designator BZX79 SERIES ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Type ±5% Tol. Zener Voltage range(1) at IZ = 5 mA VZ V min. Type max. Type Zener Voltage range(1) at IZ = 5 mA ±3% Tol. VZ V min. max. ±2% Tol. Zener Voltage range(1) at IZ = 5 mA VZ V min. max. BZX79 – C2V4 2.20 2.60 BZX79 – F2V4 2.33 2.47 BZX79 B2V4 2.35 2.45 BZX79 – C2V7 2.50 2.90 BZX79 – F2V7 2.62 2.78 BZX79 B2V7 2.65 2.75 BZX79 – C3V0 2.80 3.20 BZX79 – F3V0 2.91 3.09 BZX79B3V0 2.94 3.06 BZX79 – C3V3 3.10 3.50 BZX79 – F3V3 3.20 3.40 BZX79B3V3 3.23 3.37 BZX79 – C3V6 3.40 3.80 BZX79 – F3V6 3.49 3.71 BZX79 B3V6 3.53 3.67 BZX79 – C3V9 3.70 4.10 BZX79 – F3V9 3.78 4.02 BZX79B3V9 3.82 3.98 BZX79 – C4V3 4.00 4.60 BZX79 – F4V3 4.17 4.43 BZX79B4V3 4.21 4.39 BZX79 – C4V7 4.40 5.00 BZX79 – F4V7 4.56 4.84 BZX79B4V7 4.61 4.79 BZX79 – C5V1 4.80 5.40 BZX79 – F5V1 4.95 5.25 BZX79B5V1 5.00 5.20 BZX79 – C5V6 5.20 6.00 BZX79 – F5V6 5.43 5.77 BZX79 B5V6 5.49 5.71 BZX79 – C6V2 5.80 6.60 BZX79 – F6V2 6.01 6.39 BZX79B6V2 6.08 6.32 BZX79 – C6V8 6.40 7.20 BZX79 – F6V8 6.60 7.00 BZX79B6V8 6.66 6.94 BZX79 – C7V5 7.00 7.90 BZX79 – F7V5 7.28 7.72 BZX79B7V5 7.35 7.65 BZX79 – C8V2 7.70 8.70 BZX79 – F8V2 7.95 8.45 BZX79B8V2 8.04 8.36 BZX79 – C9V1 8.50 9.60 BZX79 – F9V1 8.83 9.37 BZX79B9V1 8.92 9.28 BZX79 – C10 9.40 10.60 BZX79 – F10 9.70 10.30 BZX79B10 9.80 10.20 BZX79 – C11 10.40 11.60 BZX79 – F11 10.67 11.33 BZX79B11 10.80 11.20 BZX79 – C12 11.40 12.70 BZX79 – F12 11.64 12.36 BZX79B12 11.80 12.20 BZX79 – C13 12.40 14.10 BZX79 – F13 12.61 13.39 BZX79B13 12.70 13.30 BZX79 – C15 13.80 15.60 BZX79 – F15 14.55 15.45 BZX79B15 14.70 15.30 BZX79 – C16 15.30 17.10 BZX79 – F16 15.50 16.50 BZX79B16 15.70 16.30 BZX79 – C18 16.80 19.10 BZX79 – F18 17.50 18.50 BZX79B18 17.60 18.40 BZX79 – C20 18.80 21.20 BZX79 – F20 19.40 20.60 BZX79B20 19.60 20.40 BZX79 – C22 20.80 23.30 BZX79 – F22 21.30 22.70 BZX79B22 21.60 22.40 BZX79 – C24 22.80 25.60 BZX79 – F24 23.30 24.70 BZX79B24 23.50 24.50 (3) BZX79 – C27 25.10 28.90 BZX79 – F27 26.20 27.80 BZX79B27 26.50 27.50(3) BZX79 – C30 28.00 32.00(3) BZX79 – F30 29.10 30.90(3) BZX79B30 29.40 30.60(3) BZX79 – C33 31.00 (3) 35.00 BZX79 – F33 32.00 (3) 34.00 BZX79B33 32.30 33.70(3)) BZX79 – C36 34.00 38.00(3) BZX79 – F36 34.90 37.10(3) BZX79B36 35.30 36.70(3) BZX79 – C39 37.00 (3) 41.00 BZX79 – F39 37.80 (3) 40.20 BZX79B39 38.20 39.80(3) BZX79 – C43 40.00 46.00(3) BZX79 – F43 41.70 44.30(3) BZX79B43 42.10 43.90(3) BZX79 – C47 44.00 (3) 50.00 BZX79 – F47 45.60 (3) 48.40 BZX79B47 46.10 47.90(3) BZX79 – C51 48.00 54.00(3) BZX79 – F51 49.50 52.50(3) BZX79B51 50.00 52.00(3) BZX79 – C56 52.00 (3) 60.00 BZX79 – F56 54.30 (3) 57.70 BZX79B56 54.90 57.10(3) BZX79 – C62 58.00 66.00(3) BZX79 – F62 60.10 63.90(3) BZX79B62 60.80 63.20(3) BZX79 – C68 64.00 (3) 72.00 BZX79 – F68 66.00 (3) 70.00 BZX79B68 66.60 69.40(3) BZX79 – C75 70.00 79.00(3) BZX79 – F75 72.80 77.20(3) BZX79B75 73.50 76.50(3) (3) See BZX79-y table for all characteristics other than zener voltage range. BZX79 SERIES ELECTRICAL CHARACTERISTICS RATINGS AND CHARACTERISTIC CURVES BZX79 SERIES RATINGS AND CHARACTERISTIC CURVES BZX79 SERIES RATINGS AND CHARACTERISTIC CURVES BZX79 SERIES WWW.ALLDATASHEET.COM Copyright © Each Manufacturing Company. All Datasheets cannot be modified without permission. This datasheet has been download from : www.AllDataSheet.com 100% Free DataSheet Search Site. Free Download. No Register. Fast Search System. www.AllDataSheet.com