BZX85B Vishay, BZX85B Datasheet - Page 3

• Manufacturer Part Number: BZX85B
• Description: Silicon Epitaxial Planar Z?diodes
• Manufacturer: Vishay

Characteristics (T
Rev. 3, 01-Apr-99
Document Number 85607
Figure 1. Total Power Dissipation vs. Ambient Tempera-
95 9612
95 9613
95 9614
Figure 2. Thermal Resistance vs. Lead Length
1000
250
200
150
100
100
2.0
1.6
1.2
0.8
0.4
50
10
0
0
1
10
–50
0
–1
Figure 5. Thermal Response
t
t
p
p
T
/T=0.5
/T=0.2
5
amb
0
– Ambient Temperature ( C )
l – Lead Length ( mm )
l=20mm
10
50
t
ture
p
/T=0.1
15
j
l=4mm
= 25 _ C unless otherwise specified)
100
T
t
l
10
L
p
=constant
20
/T=0.05
0
l=10mm
150
Single Pulse
l
25
t
p
/T=0.02
200
30
t
p
t
– Pulse Length ( ms )
p
/T=0.01
10
1
95 9616
95 9615
Figure 4. Differential Z–Resistance vs. Z–Voltage
1000
1000
100
Figure 3. Diode Capacitance vs. Z–Voltage
100
10
10
1
1
i
ZM
0
1
=(–V
10mA
20mA
I
2mA
5mA
Z
T
=1mA
f = 1 MHz
10
amb
Z
+(V
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= 25 C
Z
10
2
20
V
V
+4r
2
Z
Z
– Z-Voltage ( V )
– Z-Voltage ( V )
zj
D
Vishay Telefunken
R

T=T
thJA
30
10
D
T/Z
=110K/W
jmax
thp
–T
40
)
BZX85B...
1/2
amb
)/(2r
V
V
V
V
V
R
R
R
R
R
= 20V
= 30V
50
zj
= 0V
= 2V
= 5V
)
10
100
60
3
3 (5)