Zeners (BZX85C 3V3 - BZX85C 33)
BZX85 Series Rev.
C
2001 Fairchild Semiconductor Corporation
Device
V
Z
(V)
Z
Z
(
)
I
Z
(mA)
Z
ZK
(
)
I
ZK
(mA)
I
R
(
A)
V
R
(V)
I
SURGE
(mA)
I
ZRM
(mA)
BZX85C 3V3
BZX85C 3V6
BZX85C 3V9
BZX85C 4V3
BZX85C 4V7
3.3
3.6
3.9
4.3
4.7
20
15
15
13
13
80
60
60
50
45
400
500
500
500
600
1.0
1.0
1.0
1.0
1.0
60
30
5.0
3.0
3.0
1.0
1.0
1.0
1.0
1.5
1,380
1,260
1,190
1,070
970
276
252
234
217
193
BZX85C 5V1
BZX85C 5V6
BZX85C 6V2
BZX85C 6V8
BZX85C 7V5
5.1
5.6
6.2
6.8
7.5
10
7.0
4.0
3.5
3.0
45
45
35
35
35
500
400
300
300
200
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
4.0
4.5
890
810
730
660
605
178
162
146
133
121
BZX85C 8V2
BZX85C 9V1
BZX85C 10
BZX85C 11
BZX85C 12
8.2
9.1
10
11
12
5.0
5.0
7.0
8.0
9.0
25
25
25
20
20
200
200
200
300
350
0.5
0.5
0.5
0.5
0.5
1.0
1.0
0.5
0.5
0.5
5.0
6.5
7.0
7.7
8.4
550
500
454
414
380
110
100
91
83
76
BZX85C 13
BZX85C 15
BZX85C 16
BZX85C 18
BZX85C 20
13
15
16
18
20
10
15
15
20
24
20
15
15
15
10
400
500
500
500
600
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
9.1
10.5
11
12.5
14
344
304
285
250
225
69
61
57
50
45
BZX85C 22
BZX85C 24
BZX85C 27
BZX85C 30
BZX85C 33
22
24
27
30
33
25
25
30
30
35
10
10
8.0
8.0
8.0
600
600
750
1,000
1,200
0.5
0.5
0.25
0.25
0.25
0.5
0.5
0.5
0.5
0.5
15.5
17
19
21
23
205
190
170
150
135
41
38
34
30
27
V
F
Foward Voltage = 1.2 V Maximum @ I
F
= 200 mA for all BZX85 series
Zeners
BZX85C 3V3 -
BZX85C 33
Absolute Maximum Ratings*
T
A
= 25C unless otherwise noted
Tolerance: C = 5%
Symbol
Parameter
Value
Units
P
D
Power
Dissipation
1.3 W
T
STG
Storage Temperature Range
-65 to +200
C
T
J
Operating Junction Temperature
+ 200
C
Lead Temperature (1/16" from case for 10
seconds)
+ 230
C
NOTES:
1) These ratings are based on a maximum junction temperature of 200 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed
or low duty cycle operations.
*
These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics
T
A
= 25C unless otherwise noted
@
@
@
DO-41
COLOR BAND DENOTES CATHODE
Zeners (BZX85C 3V3 - BZX85C 33)
BZX85 Series Rev.
C
2001 Fairchild Semiconductor Corporation
Typical Characteristics
0.1
0.2
0.5
1
2
5
10
20
1
2
5
10
20
50
100
200
500
1000
2000
5000
I - ZENER CURRENT (mA)
Z
-
I
M
PE
DA
NC
E
(
o
h
m
s
)
T = 25 C
A
Z
Z
V = 3.3V
Z
V = 5.1V
Z
V = 12.0V
Z
V = 33.0V
Z
1
2
5
10
20
30
1
2
3
4
5
I - ZENER CURRENT (mA)
V
-
Z
E
N
E
R VO
L
T
A
G
E
(
V
)
T = -25 C
A
Z
Z
V = 3.3V
Z
T = 85 C
A
T = 100 C
A
T = 25 C
A
T = 125 C
A
1
2
5
10
20
30
5
10
15
20
25
30
35
I - ZENER CURRENT (mA)
V
-
Z
E
NE
R
V
O
L
T
A
GE
(
V
)
T = 25 C
A
Z
Z
V = 12.0V
Z
V = 3.3V
Z
V = 5.1V
Z
V = 33.0V
Z
1
2
5
10
20
30
4
4.5
5
5.5
6
I - ZENER CURRENT (mA)
V
-
Z
E
NE
R V
O
L
T
A
G
E
(
V
)
T = -25 C
A
Z
Z
V = 5.1V
Z
T = 85 C
A
T = 100 C
A
T = 25 C
A
T = 125 C
A
1
2
5
10
20
30
0
5
10
15
I - ZENER CURRENT (mA)
V
-
Z
E
NE
R
VO
L
T
A
G
E
(
V
)
T = -25 C
A
Z
Z
V = 12.0V
Z
T = 85 C
A
T = 100 C
A
T = 25 C
A
T = 125 C
A
1
2
5
10
20
30
20
25
30
35
40
I - ZENER CURRENT (mA)
V
-
Z
E
N
E
R VO
L
T
A
G
E (
V
)
T = -25 C
A
Z
Z
V = 33.0V
Z
T = 85 C
A
T = 100 C
A
T = 25 C
A
T = 125 C
A
Zener Current vs. Zener Voltage Zener Current vs. Zener Impedence
3.3 Zener Voltage vs. Temperature 5.1 Zener Voltage vs. Temperature
12 Zener Voltage vs. Zener Temperature 33 Zener Voltage vs. Zener Temperature
Zeners (BZX85C 3V3 - BZX85C 33)
(continued)
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
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.
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.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT 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 implant into
the body, or (b) support or sustain 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
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Formative or
In Design
First Production
Full Production
Not In Production
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