BY203-12S, BY203-16S, BY203-20S
www.vishay.com
Vishay Semiconductors
Fast Avalanche Sinterglass Diode
FEATURES
• Glass passivated junction
• Hermetically sealed package
• Material categorization:
For definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
949539
MECHANICAL DATA
Case:
SOD-57 sintered glass case
Terminals:
plated axial leads, solderable per MIL-STD-750,
method 2026
Polarity:
color band denotes cathode end
Mounting position:
any
Weight:
approx. 369 mg
• Fast rectification and switching avalanche sinterglass
diode for TV-line output circuits an switch mode power
supply
ORDERING INFORMATION
(Example)
DEVICE NAME
BY203-20S
BY203-20S
ORDERING CODE
BY203-20STR
BY203-20STAP
TAPED UNITS
5000 per 10" tape and reel
5000 per ammopack
MINIMUM ORDER QUANTITY
25 000
25 000
PARTS TABLE
PART
BY203-12S
BY203-16S
BY203-20S
TYPE DIFFERENTIATION
V
R
= 1200 V; I
F(AV)
= 250 mA
V
R
= 1600 V; I
F(AV)
= 250 mA
V
R
= 2000 V; I
F(AV)
= 250 mA
PACKAGE
SOD-57
SOD-57
SOD-57
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Reverse voltage = repetitive peak reverse
voltage
Peak forward surge current
Average forward current
Non repetitive reverse avalanche energy
Junction temperature range
Storage temperature range
I
(BR)R
= 0.4 A
TEST CONDITION
l
R
= 100 μA
t
p
= 10 ms, half sine wave
PART
BY203-12S
BY203-16S
BY203-20S
SYMBOL
V
R
= V
RRM
V
R
= V
RRM
V
R
= V
RRM
I
FSM
I
F(AV)
E
R
T
j
T
stg
VALUE
1200
1600
2000
20
250
10
- 55 to + 150
- 55 to + 175
UNIT
V
V
V
A
mA
mJ
°C
°C
MAXIMUM THERMAL RESISTANCE
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Junction ambient
TEST CONDITION
Lead length l = 10 mm, T
L
= constant
Maximum lead length
SYMBOL
R
thJA
R
thJA
VALUE
45
100
UNIT
K/W
K/W
Rev. 1.9, 12-Sep-12
Document Number: 86002
1
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
BY203-12S, BY203-16S, BY203-20S
www.vishay.com
Vishay Semiconductors
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Forward voltage
Reverse current
TEST CONDITION
I
F
= 200 mA, t
p
/T = 0.01, t
p
= 0.3ms
V
R
= 700 V
V
R
= 1000 V
V
R
= 1200 V
Breakdown voltage
Reverse recovery time
l
R
= 100 μA, t
p
/T = 0.01, t
p
= 0.3 ms
I
F
= 0.5 A, I
R
= 1 A, i
R
= 0.25 A
BY203-12S
BY203-16S
BY203-20S
BY203-12S
BY203-16S
BY203-20S
PART
SYMBOL
V
F
I
R
I
R
I
R
V
(BR)
V
(BR)
V
(BR)
t
rr
MIN.
-
-
-
-
1200
1600
2000
-
TYP.
-
-
-
-
-
-
-
-
MAX.
2.4
2
2
2
-
-
-
300
UNIT
V
μA
μA
μA
V
V
V
ns
TYPICAL CHARACTERISTICS
(T
amb
= 25
C,
unless otherwise specified)
240
200
160
120
80
40
0
0
949080
0.30
I
FAV
- Average Forward Current (A)
T
j
- Junction Temperature (°C)
R
thJA
= 45 K/W
I = 10 mm
0.25
0.20
0.15
0.10
0.05
0
V
R
= V
RRM
half
sinewave
0
30
60
90
120
150
R
thJA
= 100 K/W
PCB: d = 25 mm
V
RRM
BY203/12
BY203/16
V
R
BY203/20
400
800
1200
1600
16398
V
R
, V
RRM
- Rev./Rep. Peak Rev. Voltage (V)
T
amb
- Ambient Temperature (°C)
Fig. 1 - Junction Temperature vs.
Reverse/Repetitive Peak Reverse Voltage
Fig. 3 - Max. Average Forward Current vs.
Ambient Temperature
10
1000
V
R
= V
RRM
1
T
j
= 175 °C
0.1
T
j
= 25 °C
I
R
- Reverse Current (μA)
4
5.0
I
F
- Forward Current (A)
100
10
0.01
0.001
0
16397
1
2
3
1
25
16399
50
75
100
125
150
V
F
- Forward Voltage (V)
T
j
- Junction Temperature (°C)
Fig. 2 - Max. Forward Current vs. Forward Voltage
Fig. 4 - Max. Reverse Current vs. Junction Temperature
Rev. 1.9, 12-Sep-12
Document Number: 86002
2
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
BY203-12S, BY203-16S, BY203-20S
www.vishay.com
Vishay Semiconductors
18
P
R
- Reverse Power Dissipation (mW)
500
V
R
= V
RRM
400
P
R
-Limit
at 100 % V
R
P
R
-Limit
at 80 % V
R
C
D
- Diode Capacitance (pF)
16
14
12
10
8
6
4
2
0
0.1
1
10
f = 1 MHz
300
200
100
0
25
50
75
100
125
150
16401
100
16400
T
j
- Junction Temperature (°C)
V
R
- Reverse Voltage (V)
Fig. 5 - Max. Reverse Power Dissipation vs. Junction Temperature
Fig. 6 - Diode Capacitance vs. Reverse Voltage
PACKAGE DIMENSIONS
in millimeters (inches):
SOD-57
0.82 (0.032) max.
26 (1.024) min.
4 (0.157) max.
26 (1.024) min.
Rev. 1.9, 12-Sep-12
Document Number: 86002
3
For technical questions within your region:
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
3.6 (0.142) max.
20543
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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