Page 1
Silicon Planar Diodes
g
Features
D
Very low reverse current
Applications
BAS33.BAS34
Vishay Telefunken
Protection circuits, time delay circuits, peak follower
circuits, logarithmic amplifiers
Absolute Maximum Ratings
Tj = 25_C
Parameter Test Conditions Type Symbol Value Unit
Reverse voltage BAS33 V
BAS34 V
Peak forward surge current tp=1ms I
Forward current I
Junction temperature T
Storage temperature range T
Maximum Thermal Resistance
Tj = 25_C
Parameter Test Conditions Symbol Value Unit
Junction ambient l=4mm, TL=constant R
thJA
R
R
FSM
F
stg
j
94 9367
30 V
60 V
2 A
200 mA
200
–65...+200
350 K/W
°
C
°
C
Document Number 85541
Rev. 2, 01-Apr-99 1 (3)
www.vishay.de • FaxBack +1-408-970-5600
Page 2
BAS33.BAS34
g
R
m
Vishay Telefunken
Electrical Characteristics
Tj = 25_C
Parameter Test Conditions Type Symbol Min Typ Max Unit
Forward voltage IF=100mA V
Reverse current
Ex300lx, V
R
Ex300lx, VR, Tj=125°C
Ex300lx, VR=15V
Ex300lx, VR=30V
BAS33 I
BAS34 I
Breakdown voltage IR=5mA, tp/T=0.01, tp=0.3ms BAS33 V
BAS34 V
Diode capacitance VR=0, f=1MHz C
Characteristics (Tj = 25_C unless otherwise specified)
F
I
R
I
R
R
R
(BR)
(BR)
D
1 3 nA
0.5 1 nA
0.5 1 nA
40 V
70 V
1 V
0.5
3 pF
m
A
10000
VR=V
RRM
Scattering Limit
Tj – Junction Temperature ( °C )
R
I – Reverse Current ( nA )
94 9079
1000
100
10
1
0 40 80 120 160
Figure 1. Reverse Current vs. Junction Temperature
Dimensions in mm
technical drawings
according to DIN
specifications
94 9366
∅ 1.7 max.
200
1000
Tj=25°C
100
Scattering Limit
10
1
F
I – Forward Current ( mA )
0.1
0 0.4 0.8 1.2 1.6
94 9078
VF – Forward Voltage ( V )
Figure 2. Forward Current vs. Forward Voltage
Cathode Identification
2.0
∅ 0.55 max.
Standard Glass Case
54 A 2 DIN 41880
JEDEC DO 35
Weight max. 0.3g
www.vishay.de • FaxBack +1-408-970-5600 Document Number 85541
3.9 max.26 min.
26 min.
Rev. 2, 01-Apr-992 (3)
Page 3
BAS33.BAS34
Vishay Telefunken
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known
as ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. V arious national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use
of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use V ishay-Telefunken products for any unintended or unauthorized
application, the buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out
of, directly or indirectly , any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
Document Number 85541
Rev. 2, 01-Apr-99 3 (3)
www.vishay.de • FaxBack +1-408-970-5600
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