BZX79C3V3 through BZX79C56 Series
500 mW DO-35 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings TA = 25°C unless otherwise noted
Parameter Value Units
Power Dissipation 500 mW
Storage Temperature Range -65 to +200 °C
Operating Junction Temperature +200 °C
Lead Temperature (1/16” from case for 10 seconds) +230 °C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Volt age Range 3.3 to 56 Volts
DO-35 Pack age (JE DEC)
Through-Hole Devic e Type Mount ing
Herm etically Sealed Glass
Com pression Bonded Construction
All external s urfac es are corros i on resistant and leads are readily solderable
Cathode indi cated by polarity band
AXIAL LEAD
DO-35
DEVICE MARKING DIAGRAM
L
79C
xxx
L : Logo
Device Code : BZX79Cxxx
Cathode Anode
ELECTRICAL SYMBOL
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device Type VZ
Min VZ
Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
IZK
(mA)
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
VR
(Volts)
BZX79C 3V3 3.1 3.5 5 95 1 600 25 1
BZX79C 3V6 3.4 3.8 5 90 1 600 15 1
BZX79C 3V9 3.7 4.1 5 90 1 600 10 1
BZX79C 4V3 4 4.6 5 90 1 600 5 1
BZX79C 4V7 4.4 5 5 80 1 500 3 2
BZX79C 5V1 4.8 5.4 5 60 1 480 2 2
BZX79C 5V6 5.2 6 5 40 1 400 1 2
BZX79C 6V2 5.8 6.6 5 10 1 150 3 4
BZX79C 6V8 6.4 7.2 5 15 1 80 2 4
BZX79C 7V5 7 7.9 5 15 1 80 1 5
BZX79C 8V2 7.7 8.7 5 15 1 80 0.7 5
BZX79C 9V1 8.5 9.6 5 15 1 100 0.5 6
BZX79C 10 9.4 10.6 5 20 1 150 0.2 7
BZX79C 11 10.4 11.6 5 20 1 150 0.1 8
BZX79C 12 11.4 12.7 5 25 1 150 0.1 8
BZX79C 13 12.4 14.1 5 30 1 170 0.1 8
BZX79C 15 13.8 15.6 5 30 1 200 0.05 10.5
BZX79C 16 15.3 17.1 5 40 1 200 0.05 11.2
BZX79C 18 16.8 19.1 5 45 1 225 0.05 12.6
BZX79C 20 18.8 21.2 5 55 1 225 0.05 14
BZX79C 22 20.8 23.3 5 55 1 250 0.05 15.4
October 2003 / B
Electrical Characteristics TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
Device Type VZ
Min VZ
Max
IZT
(mA)
ZZT @ IZT
(Ω)
Max
IZK
(mA)
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
VR
(Volts)
BZX79C 24 22.8 25.6 5 70 1 250 0.05 16.8
BZX79C 27 25.1 28.9 5 80 0.5 300 0.05 18.9
BZX79C 30 28 32 5 80 0.5 300 0.05 21
BZX79C 33 31 35 5 80 0.5 325 0.05 23.1
BZX79C 36 34 38 5 90 0.5 350 0.05 25.2
BZX79C 39 37 41 5 130 0.5 350 0.05 27.3
BZX79C 43 40 46 2 150 0.5 375 0.05 30.1
BZX79C 47 44 50 2 170 0.5 375 0.05 32.9
BZX79C 51 48 54 2 180 0.5 400 0.05 35.7
BZX79C 56 52 60 2 200 0.5 425 0.05 39.2
VF Forward Voltage = 1.5 V Maximum @ IF = 100 mA for all types
Notes:
1. The type numbers listed have zener volt age m in/max limits as shown.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
voltage tol erances, contact your nearest Synsemi represent ative.
3. The zener impedanc e is derived f rom t he 60-cycl e ac vol tage, which result s when an ac c urrent havin g an rm s value equal t o
10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.
Electrical Symbol Definition Typical Characteristics
Symbol Parameter
VZReverse Zener Voltage @ IZT
IZT Reverse Current
ZZT Maximum Zener Impedance @ IZT
IZK Reverse Current
ZZK Maximum Zener Impedance @ IZK
IRReverse Leakage Current @ VR
VRBreakdown Voltage
IFForward Current
VFForward Voltage @ IF
(nA)
VZVRIR
IZT
IF
VF
(mA)
(mA)
(V)
(mV)
I
V
Ordering Information
Device Package Quantity
BZX79Cxxx Bulk 10,000
BZX79Cxxx.TB Tape and Ammo 5,000
BZX79Cxxx.TR Tape and Reel 10,000
October 2003 / B
Tape & Reel Packaging Information
Tape & Reel
Outline
Reel Dimensions
DIM Millimeters
D1 356
D2 30
D3 84
W1 77.5
Quantity Per Reel
PKG Type Quantity Per Reel
DO-35 10,000
October 2003 / B
Tape & Ammo Packaging Information
Tape & Ammo
Outline
Quantity Per Ammo
Box
PKG Type Quantity Per Box
DO-35 5,000
250mm x 80mm x 80mm
Taping Dim ens ions
Description Millimeters
Standard Width 52 26
Tape Spacing (B) 52 ± 0.69 26 +0.5 / -0
Component Pitch (C) 5.08 ± 0.4 5.08 ± 0.4
Untaped Lead (L1 – L2) ± 0.69 ± 0.69
Glass Offset (F) ± 0.69 ± 0.69
Bent (D) 1.2 Max 1.2 Max
Tape Width (G) 6.138 ± 0.576 6.138 ± 0.576
Tape Mismatch (E) 0.55 Max 0.55 Max
Taped Lead (G) 3.2 Min 3.2 Min
Lead Beyond Tape (H) 0 0
October 2003 / B
Bulk Packaging Information
Bulk Outline
Quantity Per Box
PKG Type Quantity Per Box
DO-35 10,000
190mm x 150mm x 65mm
Quantity Per Plastic Bag
DO-35 500 x 20 Plastic Bag
Plas tic Bag
October 2003 / B
Package Outline
Package Case Outline
DO-35 DO-35
Millimeters Inches
DIM
Min Max Min Max
A 0.46 0.55 0.018 0.022
B 3.05 5.08 0.120 0.200
C 25.40 38.10 1.000 1.500
D 1.53 2.28 0.060 0.090
Notes: 1. All dimensions are with i n JEDEC standard.
2. DO35 polarity denot ed by cat hode band.
October 2003 / B
