©2007 Fairchild Semiconductor Corporation 1www.fairchildsemi.com
BZX79C2V4 - BZX79C56 Rev. C1
BZX79C2V4 - BZX79C56 Zener Diodes
July 2007
BZX79C2V4 - BZX79C56
Zener Diodes
Absolute Maximum Ratings * TA = 25°C unless otherwise noted
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics TA=25°C unless otherwise no ted
Symbol Parameter Value Units
PDPower Dissipation
@ TL ≤ 75°C, Lead Length = 3/8” 500 mW
Derate above 75°C4.0 mW/°C
TJ, TSTG Operating and Storage Temperature Range -65 to +200 °C
Device Zener Voltage (Note 1) ZZ @ IZ (Ω)Leakage Current TC (mV / °C) C (pF)
Min. Max. IZ (mA) Max. IR (μA) VR (V) Min. Max. VZ = 0, f = 1MHz
BZX79C2V4
BZX79C2V7
BZX79C3V0
BZX79C3V3
BZX79C3V6
2.2
2.5
2.8
3.1
3.4
2.6
2.9
3.2
3.5
3.8
5
5
5
5
5
100
100
95
95
90
100
75
50
25
15
1
1
1
1
1
-3.5
-3.5
-3.5
-3.5
-3.5
0
0
0
0
0
255
230
215
200
185
BZX79C3V9
BZX79C4V3
BZX79C4V7
BZX79C5V1
BZX79C5V6
3.7
4
4.4
4.8
5.2
4.1
4.6
5
5.4
6
5
5
5
5
5
90
90
80
60
40
10
5
3
2
1
1
1
2
2
2
-3.5
-3.5
-3.5
-2.7
-2
+0.3
+1
+0.2
+1.2
+2.5
175
160
130
110
95
BZX79C6V2
BZX79C6V8
BZX79C7V5
BZX79C8V2
BZX79C9V1
5.8
6.4
7
7.7
8.5
6.6
7.2
7.9
8.7
9.6
5
5
5
5
5
10
15
15
15
15
3
2
1
0.7
0.5
4
4
5
5
6
0.4
1.2
2.5
3.2
3.8
3.7
4.5
5.3
6.2
7
90
85
80
75
70
BZX79C10
BZX79C11
BZX79C12
BZX79C13
BZX79C15
9.4
10.4
11.4
12.4
13.8
10.6
11.6
12.7
14.1
15.6
5
5
5
5
5
20
20
25
30
30
0.2
0.1
0.1
0.1
0.05
7
8
8
8
10.5
4.5
5.4
6
7
9.2
8
9
10
11
13
70
65
65
60
55
BZX79C16
BZX79C18
BZX79C20
BZX79C22
BZX79C24
15.3
16.8
18.8
20.8
22.8
17.1
19.1
21.2
23.3
25.6
5
5
5
5
5
40
45
55
55
70
0.05
0.05
0.05
0.05
0.05
11.2
12.6
14
15.4
16.8
10.4
12.9
14.4
16.4
18.4
14
16
18
20
22
52
47
36
34
33
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CA THODE
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BZX79C2V4 - BZX79C56 Rev. C1
BZX79C2V4 - BZX79C56 Zener Diodes
Notes:
1. Zener Voltage (VZ)
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperat ure (TL) at 30°C ± 1°C and 3/8” lead length.
Top Mark Information
Device Zener Voltage (Note 1) ZZ @ IZ (Ω)Leakage Current TC (mV / °C) C (pF)
Min. Max. IZ (mA) Max. IR (μA) VR (V) Min. Max. VZ = 0, f = 1MHz
BZX79C27
BZX79C30
BZX79C33
BZX79C36
BZX79C39
25.1
28
31
34
37
28.9
32
35
38
41
2
2
2
2
2
80
80
80
90
130
0.05
0.05
0.05
0.05
0.05
18.9
21
23.1
25.2
27.3
-
-
-
-
-
23.5
26
29
31
34
30
27
25
23
21
BZX79C43
BZX79C47
BZX79C51
BZX79C56
40
44
48
52
46
50
54
60
2
2
2
2
150
170
180
200
0.05
0.05
0.5
0.05
30.1
32.9
35.7
39.2
-
-
-
-
37
40
44
47
21
19
19
18
VF Forward Voltage = 1.5V Max @ IF = 100mA
Device Line 1 Line 2 Line 3
BZX79C2V4
BZX79C2V7
BZX79C3V0
BZX79C3V3
BZX79C3V6
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
2V4
2V7
3V0
3V3
3V6
BZX79C3V9
BZX79C4V3
BZX79C4V7
BZX79C5V1
BZX79C5V6
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
3V9
4V3
4V7
5V1
5V6
BZX79C6V2
BZX79C6V8
BZX79C7V5
BZX79C8V2
BZX79C9V1
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
6V2
6V8
7V5
8V2
9V1
BZX79C10
BZX79C11
BZX79C12
BZX79C13
BZX79C15
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
10
11
12
13
15
BZX79C16
BZX79C18
BZX79C20
BZX79C22
BZX79C24
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
16
18
20
22
24
BZX79C27
BZX79C30
BZX79C33
BZX79C36
BZX79C39
LOGO
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
9C
27
30
33
36
39
BZX79C43
BZX79C47
BZX79C51
BZX79C56
LOGO
LOGO
LOGO
LOGO
9C
9C
9C
9C
43
47
51
56
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BZX79C2V4 - BZX79C56 Rev. C1
BZX79C2V4 - BZX79C56 Zener Diodes
Top Mark Information (Continued)
General Requirements:
1.0 Cathode Band
2.0 First Line: F - Fairchild Logo
3.0 Second Line: Device name - For 1Nxx series: 4th to 5th characters of the device name.
For BZxx series: 5th to 6th characters of the device name.
4.0 Third Line: Device name - For 1Nxx series: 6th to 7th characters of the device name.
For BZXyy series: Voltage rating
5.0 Devices shall be marked as required in the device specification (PID or FSC Test Spec).
6.0 Maximum no. of marking lines: 3
7.0 Maximum no. of digits per line: 2
8.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified line.
9.0 Marking Font: Arial (Except FSC Logo)
10.0 First character of each marking line must be aligned vertically.
11.0 All device markings must be based on Fairchild device specification.
1st line: F - Fairchild Logo
2nd line: Device Name - 4th to 5th characters of the device name.
or 5th to 6th characters for BZXyy series
3rd line: Device Name - 6th to 7th characters of the device name.
or Voltage rating for BZXyy series
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to
be an exhaustive list of all such trademarks.
BZX79C2V4 - BZX79C56 Zener Diodes
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCH ILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE
OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE
RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPE-
CIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEV ICES OR SYSTEMS W ITHOUT
THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical impla nt into the body, or (b) support or susta in life, or
(c) whose failure to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected
to result in significant injury to the user.
2. A critical component is any component of a life supp ort device or system
whose failure to perform can be reason ably expected to cause the failure
of the life support device o r system, or to affe ct its safet y or eff ectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or In Design This datasheet contains the design specifications for product develop-
ment. Specifications may change in any manner without notice.
Preliminary First Production This datasheet contains preliminary data, and supplementary data will
be published at a lat er date. Fairchil d Semiconducto r reserves th e right
to make changes at any time without notice in order to improve design.
No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice in order
to improve design.
Obsolete Not In Production This datasheet contains specifications on a product that has been dis-
continued by Fairchild semiconductor.The datasheet is printed for ref-
erence information only.
GTO™
HiSeC™
i-Lo™
ImpliedDisconnect™
IntelliMAX™
ISOPLANAR™
MICROCOUPLER™
MicroPak™
MICROWIRE™
MSX™
MSXPro™
OCX™
OCXPro™
OPTOLOGIC®
OPTOPLANAR™®
PACMAN™
POP™
Power220®
Power247®
PowerEdge™
PowerSaver™
PowerTrench®
Programmable Active Droop™
QFET®
QS™
QT Optoelectronics™
Quiet Series™
RapidConfigure™
RapidConnect™
ScalarPump™
SMART START™
SPM™
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TCM™
The Power Franchise®
TinyBoost™
TinyBuck™
TinyLogic®
TINYOPTO™
TinyPower™
TinyWire™
TruTranslation™
μSerDes™
UHC®
UniFET™
VCX™
Wire™
ACEx™
Across the board. Around the world.™
ActiveArray™
Bottomless™
Build it Now™
CoolFET™
CROSSVOLT™
CTL™
Current Transfer Logic™
DOME™
E2CMOS™
EcoSPARK®
EnSigna™
FACT Quiet Series™
FACT®
FAST®
FASTr™
FPS™
FRFET™
GlobalOptoisolator™
Rev. I23
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BZX79C2V4 - BZX79C56 Rev. C1
BZX79C2V4 - BZX79C56 Zener Diodes
