SYMBOL VALUE UNIT
Zener Current (see Table “Characteristics”)
Power Dissipation at Tamb = 25°C Ptot 500(1) mW
Junction Temperature Tj-65 to 200 °C
Storage Temperature Range TS-65 to + 200 °C
Continuous Forward Current IF250 mA
Peak reverse power dissipation (non-repetitive) tp=100ms, PZSM 40 Watts
square wave
BZX79 SERIES
SILICON PLANAR ZENER DIODES
FEATURES
The Zener voltages are graded according to the international
E 24 standard. Higher Zener voltages and 1% tolerance
available on request.
Diodes available in these tolerance series:
±2% BZX79-B
±3% BZX79-F
±5% BZX79-C
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
12/10/98
min. 1.083 (27.5)
min. 1.083 (27.5) max. .150 (3.8)
max.
Cathode
.020 (0.52)
Mark
max. .079 (2.0)
Dimensions in inches and (millimeters)
DO-35
Characteristics at Tamb = 25°C
SYMBOL MIN. TYP. MAX. UNIT
Thermal Resistance RthJA 0.3(1) °C/W
Junction to Ambient Air
Forward Voltage VF 0.9 Volts
at IF= 10 mA
NOTES:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8mm from case.
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 +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 80(3) 325(4) +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 240(3) 475(4) 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
BZX79 SERIES
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type
y = B for ±2%VZ
y = F for ±3%VZ
y = C for ±5%VZ
Dynamic resistance
at at
IZ= 5 mA IZ= 1 mA
f = 1 kHZf = 1 kHZ
rzj rzj
max. max
Temp coefficient
of Zener Voltage
at
IZ= 5 mA
mVZ %/K
min. max.
Admissible
Zener
current(2)
IZ
(mA)
Capacitance
VR=0
f=1 MHZ
(pF)
max.
Non-Repetitive
Peak Reverse
Currrent
at tp= 100µs
IZSM
(A)
Reverse leakage
Current
IR at VR
nA V
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 – C2V4 2.20 2.60
BZX79 – C2V7 2.50 2.90
BZX79 – C3V0 2.80 3.20
BZX79 – C3V3 3.10 3.50
BZX79 – C3V6 3.40 3.80
BZX79 – C3V9 3.70 4.10
BZX79 – C4V3 4.00 4.60
BZX79 – C4V7 4.40 5.00
BZX79 – C5V1 4.80 5.40
BZX79 – C5V6 5.20 6.00
BZX79 – C6V2 5.80 6.60
BZX79 – C6V8 6.40 7.20
BZX79 – C7V5 7.00 7.90
BZX79 – C8V2 7.70 8.70
BZX79 – C9V1 8.50 9.60
BZX79 – C10 9.40 10.60
BZX79 – C11 10.40 11.60
BZX79 – C12 11.40 12.70
BZX79 – C13 12.40 14.10
BZX79 – C15 13.80 15.60
BZX79 – C16 15.30 17.10
BZX79 – C18 16.80 19.10
BZX79 – C20 18.80 21.20
BZX79 – C22 20.80 23.30
BZX79 – C24 22.80 25.60
BZX79 – C27 25.10 28.90(3)
BZX79 – C30 28.00 32.00(3)
BZX79 – C33 31.00 35.00(3)
BZX79 – C36 34.00 38.00(3)
BZX79 – C39 37.00 41.00(3)
BZX79 – C43 40.00 46.00(3)
BZX79 – C47 44.00 50.00(3)
BZX79 – C51 48.00 54.00(3)
BZX79 – C56 52.00 60.00(3)
BZX79 – C62 58.00 66.00(3)
BZX79 – C68 64.00 72.00(3)
BZX79 – C75 70.00 79.00(3)
BZX79 – F2V4 2.33 2.47
BZX79 – F2V7 2.62 2.78
BZX79 – F3V0 2.91 3.09
BZX79 – F3V3 3.20 3.40
BZX79 – F3V6 3.49 3.71
BZX79 – F3V9 3.78 4.02
BZX79 – F4V3 4.17 4.43
BZX79 – F4V7 4.56 4.84
BZX79 – F5V1 4.95 5.25
BZX79 – F5V6 5.43 5.77
BZX79 – F6V2 6.01 6.39
BZX79 – F6V8 6.60 7.00
BZX79 – F7V5 7.28 7.72
BZX79 – F8V2 7.95 8.45
BZX79 – F9V1 8.83 9.37
BZX79 – F10 9.70 10.30
BZX79 – F11 10.67 11.33
BZX79 – F12 11.64 12.36
BZX79 – F13 12.61 13.39
BZX79 – F15 14.55 15.45
BZX79 – F16 15.50 16.50
BZX79 – F18 17.50 18.50
BZX79 – F20 19.40 20.60
BZX79 – F22 21.30 22.70
BZX79 – F24 23.30 24.70
BZX79 – F27 26.20 27.80(3)
BZX79 – F30 29.10 30.90(3)
BZX79 – F33 32.00 34.00(3)
BZX79 – F36 34.90 37.10(3)
BZX79 – F39 37.80 40.20(3)
BZX79 – F43 41.70 44.30(3)
BZX79 – F47 45.60 48.40(3)
BZX79 – F51 49.50 52.50(3)
BZX79 – F56 54.30 57.70(3)
BZX79 – F62 60.10 63.90(3)
BZX79 – F68 66.00 70.00(3)
BZX79 – F75 72.80 77.20(3)
BZX79 B2V4 2.35 2.45
BZX79 B2V7 2.65 2.75
BZX79B3V0 2.94 3.06
BZX79B3V3 3.23 3.37
BZX79 B3V6 3.53 3.67
BZX79B3V9 3.82 3.98
BZX79B4V3 4.21 4.39
BZX79B4V7 4.61 4.79
BZX79B5V1 5.00 5.20
BZX79 B5V6 5.49 5.71
BZX79B6V2 6.08 6.32
BZX79B6V8 6.66 6.94
BZX79B7V5 7.35 7.65
BZX79B8V2 8.04 8.36
BZX79B9V1 8.92 9.28
BZX79B10 9.80 10.20
BZX79B11 10.80 11.20
BZX79B12 11.80 12.20
BZX79B13 12.70 13.30
BZX79B15 14.70 15.30
BZX79B16 15.70 16.30
BZX79B18 17.60 18.40
BZX79B20 19.60 20.40
BZX79B22 21.60 22.40
BZX79B24 23.50 24.50
BZX79B27 26.50 27.50(3)
BZX79B30 29.40 30.60(3)
BZX79B33 32.30 33.70(3))
BZX79B36 35.30 36.70(3)
BZX79B39 38.20 39.80(3)
BZX79B43 42.10 43.90(3)
BZX79B47 46.10 47.90(3)
BZX79B51 50.00 52.00(3)
BZX79B56 54.90 57.10(3)
BZX79B62 60.80 63.20(3)
BZX79B68 66.60 69.40(3)
BZX79B75 73.50 76.50(3)
BZX79 SERIES
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Type Zener Voltage
range(1)
at
IZ= 5 mA
VZV
±5% Tol. min. max.
Type Zener Voltage
range(1)
at
IZ= 5 mA
VZV
±3% Tol. min. max.
Type Zener Voltage
range(1)
at
IZ= 5 mA
VZV
±2% Tol. min. max.
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