BYV37, BYV38
www.vishay.com
Vishay Semiconductors
Fast Avalanche Sinterglass Diode
FEATURES
• Glass passivated junction
• Hermetically sealed package
• Low reverse current
• Soft recovery characteristics
• Material categorization:
For definitions of compliance please see
www.vishay.com/doc?99912
949539
APPLICATIONS
• Fast “soft recovery” rectification diode
MECHANICAL DATA
Case:
SOD-57
Terminals:
plated axial leads, solderable per MIL-STD-750,
method 2026
Polarity:
color band denotes cathode end
Mounting position:
any
Weight:
approx. 369 mg
ORDERING INFORMATION
(Example)
DEVICE NAME
BYV38
BYV38
ORDERING CODE
BYV38-TR
BYV38-TAP
TAPED UNITS
5000 per 10" tape and reel
5000 per ammopack
MINIMUM ORDER QUANTITY
25 000
25 000
PARTS TABLE
PART
BYV37
BYV38
TYPE DIFFERENTIATION
V
R
= 800 V; I
F(AV)
= 2 A
V
R
= 1000 V; I
F(AV)
= 2 A
PACKAGE
SOD-57
SOD-57
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Reverse voltage
Peak forward surge current
Average forward current
Non repetitive reverse avalanche energy
Junction and storage temperature range
I
(BR)R
= 0.4 A
TEST CONDITION
See electrical characteristics
t
p
= 10 ms, half sine wave
PART
BYV37
BYV38
SYMBOL
V
R
= V
RRM
V
R
= V
RRM
I
FSM
I
F(AV)
E
R
T
j
= T
stg
VALUE
800
1000
50
2
10
- 55 to + 175
UNIT
V
V
A
A
mJ
°C
MAXIMUM THERMAL RESISTANCE
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Junction ambient
TEST CONDITION
Lead length l = 10 mm, T
L
= constant
On PC board with spacing 25 mm
SYMBOL
R
thJA
R
thJA
VALUE
45
100
UNIT
K/W
K/W
Rev. 1.8, 04-Sep-12
Document Number: 86045
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
BYV37, BYV38
www.vishay.com
Vishay Semiconductors
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Forward voltage
Reverse current
Reverse recovery time
Diode capacitance
TEST CONDITION
I
F
= 1 A
V
R
= V
RRM
V
R
= V
RRM
, T
j
= 150 °C
I
F
= 0.5 A, I
R
= 1 A, i
R
= 0.25 A
V
R
= 4 V, f = 1 MHz
PART
SYMBOL
V
F
I
R
I
R
t
rr
C
D
MIN.
-
-
-
-
-
TYP.
1
-
-
-
15
MAX.
1.1
5
150
300
-
UNIT
V
μA
μA
ns
pF
TYPICAL CHARACTERISTICS
(T
amb
= 25
C,
unless otherwise specified)
R
thJA
- Ther. Resist. Junction/Ambient (K/W)
120
100
80
60
l
40
20
T
L
= constant
0
0
949552
1000
V
R
= V
RRM
I
R
- Reverse Current (A)
100
l
10
5
10
15
20
25
30
15775
1
25
50
75
100
125
150
175
l - Lead Length (mm)
T
j
- Junction Temperature (°C)
Fig. 1 - Max. Thermal Resistance vs. Lead Length
Fig. 3 - Max. Reverse Current vs. Junction Temperature
P
R
- Reverse Power Dissipation (mW)
500
450
400
350
300
250
200
150
100
50
0
25
50
75
100
125
150
175
160 K/W
BYV38
BYV37
R
thJA
= 45 K/W
100 K/W
V
R
= V
RRM
10
I
F
- Forward Current (A)
1
T
j
= 175 °C
T
j
= 25 °C
0.1
0.01
0.001
0
16343
0.4
0.8
1.2
1.6
2.0
15774
T
j
- Junction Temperature (°C)
V
F
- Forward Voltage (V)
Fig. 2 - Max. Reverse Power Dissipation vs. Junction Temperature
Fig. 4 - Forward Current vs. Forward Voltage
Rev. 1.8, 04-Sep-12
Document Number: 86045
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
BYV37, BYV38
www.vishay.com
Vishay Semiconductors
2.5
35
I
FAV
- Average Forward Current (A)
2.0
R
thJA
≤ 45 K/W
I = 10 mm
C
D
- Diode Capacitance (pF)
V
R
= V
RRM
half
sinewave
f = 1 MHz
30
25
20
15
10
5
0
0.1
15776
1.5
1.0
R
thJA
≤ 100 K/W
PCB: d = 25 mm
0.5
0
0
16344
20
40
60
80 100 120 140 160 180
1
10
100
T
amb
- Ambient Temperature (°C)
V
R
- Reverse Voltage (V)
Fig. 5 - Max. Average Forward Current vs. Ambient Temperature
Fig. 6 - Typ. 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. 1.8, 04-Sep-12
Document Number: 86045
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,
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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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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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