BZX85C Series
Axial Lead Zener Diodes
P b
Lead(Pb)-Free
SMALL SIGNAL
ZENER DIODES
1.3 WATTS
Features:
* High Rliability
* Very Sharp Reverse Characteristic
* Low Reverse Current Level
* VZ-Tolerance ± 2%
Mechanical Data:
* Voltage stabilization
* Case : DO-41 Glass Case
* Weight : Approx 0.33 gram
DO-41
DO-41 Outline Dimensions
Unit:mm
C
D
A
B
A
A
DIM
DO-41
Min
26.0
Max
-
Min
-
B
Max
4.50
Min
-
C
Max
0.85
Min
-
D
Max
2.7
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BZX85C Series
Maximum Ratings and Electrical Characteristics
(TA=25°C Unless Otherwise Noted)
Parameter
Power dissipation
Junction ambient
Junction temperature
Storage temperature range
I=4mmT
L
≤ 25°C
I=4mm, T
L
=constant
Symbol
P
V
R
θJA
T
j
T
stg
Value
1.3
110
175
-65~+175
Unit
W
K/W
°C
°C
Electrical Characteristics
Parameter
Forward voltage
I
F
=200mA
Symbol
V
F
Min
-
Typ
-
Max
1.0
Unit
V
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BZX85C Series
Type
BZX85C
2V7
3V0
3V3
3V6
3V9
4V3
4V7
5V1
5V6
6V2
6V8
7V5
8V2
9V1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
1)
V
Znom
V
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
I
ZT
mA
80
80
80
60
60
50
45
45
45
35
35
35
25
25
25
20
20
20
15
15
15
10
10
10
8
8
8
8
6
6
4
4
4
4
4
4
for V
ZT
and
V
2.5~2.9
2.8~3.2
3.1~3.5
3.4~3.8
3.7~4.1
4.0~4.6
4.4~5.0
4.8~5.4
5.2~6.0
5.8~6.6
6.4~7.2
7.0~7.9
7.7~8.7
8.5~9.6
9.4~10.6
10.4~11.6
11.4~12.7
12.4~14.1
13.8~15.6
15.3~17.1
16.8~19.1
18.8~21.2
20.8~23.3
22.8~25.6
25.1~28.9
28~32
31~35
34~38
37~41
40~46
44~50
48~54
52~60
58~66
64~72
70~79
1)
r
zjT
Ω
<20
<20
<20
<20
<15
<13
<13
<10
<7
<4
<3.5
<3
<5
<5
<7
<8
<9
<10
<15
<15
<20
<24
<25
<25
<30
<30
<35
<40
<50
<50
<90
<115
<120
<125
<130
<135
r
zjK
@ I
ZK
Ω
<400
<400
<400
<500
<500
<500
<500
<500
<400
<300
<300
<200
<200
<200
<200
<300
<350
<400
<500
<500
<500
<600
<600
<600
<750
<1000
<1000
<1000
<1000
<1000
<1500
<1500
<2000
<2000
<2000
<2000
mA
1
1
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
I
R
μA
<150
<100
<40
<20
<10
<3
<3
<1
<1
<1
<1
<1
<1
<1
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
@
V
R
V
1
1
1
1
1
1
1
1
1
2
3
5
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
TK
VZ
%/K
-0.09~-0.06
-0.08~-0.05
-0.08~-0.05
-0.08~-0.05
-0.08~-0.05
-0.06~-0.03
-0.05~+0.02
-0.02~+0.02
-0.05~+0.05
0.03~0.06
0.03~0.07
0.03~0.07
0.03~0.08
0.03~0.09
0.03~0.1
0.03~0.11
0.03~0.11
0.03~0.11
0.03~0.11
0.03~0.11
0.03~0.11
0.03~0.11
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
0.04~0.12
Tighter tolerances available request:
BZX85B…
±2%
of V
Znom
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BZX85C Series
Characteristics
(T
j
=25℃ unless otherwise specified)
Ptot –Total Power Dissipation (W)
R
thJA
– Therm. Resist. Junction/
Ambient (K/W)
Tamb – Ambient Temperature(℃)
Figure1.Total Power Dissipation vs. Ambient
Temperature
C
D
–Diode Capacitance (pF)
l – Lead Length (mm
)
Figure2. Thermal Resistance vs. Lead Length
V
R
=0V
V
R
=2V
V
R
=5V
V
R
=20V
V
R
=30V
Vz-Z-Voltage (V)
Figure3. Diode Capacitance vs. Z-Voltage
Zthp – Thermal Resistance for
r
z
–Differential Z-Resistance (
Ω)
Vz-Z-Voltage (V)
Figure4.Differential Z-Resistance vs.Z-Voltage
Pulse Cond. (K/W)
Figure5. Thermal Response
t
p
–Pulse Length (ms)
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