BY268, BY269
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Rev. 1.8, 20-Feb-18 1Document Number: 86005
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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
Fast Avalanche Sinterglass Diode
DESIGN SUPPORT TOOLS
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
FEATURES
• Glass passivated junction
• Hermetically sealed package
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
• High voltage fast rectification diode
949539
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Available
Models
ORDERING INFORMATION (Example)
DEVICE NAME ORDERING CODE TAPED UNITS MINIMUM ORDER QUANTITY
BY269 BY269TR 5000 per 10" tape and reel 25 000
BY269 BY269TAP 5000 per ammopack 25 000
PARTS TABLE
PART TYPE DIFFERENTIATION PACKAGE
BY268 VR = 1400 V; IF(AV) = 0.8 A SOD-57
BY269 VR = 1600 V; IF(AV) = 0.8 A SOD-57
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION PART SYMBOL VALUE UNIT
Reverse voltage See electrical characteristics BY268 VR1400 V
BY269 VR1600 V
Peak reverse voltage, non repetitive BY268 VRSM 1600 V
BY269 VRSM 1800 V
Peak forward surge current tp = 10 ms, half sine wave IFSM 20 A
Average forward current IF(AV) 0.8 A
Non repetitive reverse avalanche energy I(BR)R = 0.4 A ER10 mJ
Junction and storage temperature range Tj = Tstg -55 to +175 °C
MAXIMUM THERMAL RESISTANCE (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Junction ambient Lead length l = 10 mm, TL = constant RthJA 45 K/W
On PC board with spacing 25 mm RthJA 100 K/W
BY268, BY269
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Rev. 1.8, 20-Feb-18 2Document Number: 86005
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
TYPICAL CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)
Fig. 1 - Max. Thermal Resistance vs. Lead Length
Fig. 2 - Max. Forward Current vs. Forward Voltage
Fig. 3 - Max. Average Forward Current vs. Ambient Temperature
Fig. 4 - Max. Reverse Current vs. Junction Temperature
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION PART SYMBOL MIN. TYP. MAX. UNIT
Forward voltage IF = 0.4 A VF- - 1.25 V
Reverse current
VR = 1400 V BY268 IR-12μA
VR = 1600 V BY269 IR-12μA
VR= 1400 V, Tj = 100 °C BY268 IR- - 15 μA
VR= 1600 V, Tj = 100 °C BY269 IR- - 15 μA
Reverse recovery time IF = 0.5 A, IR = 1 A, iR = 0.25 A trr - - 400 ns
0 5 10 15 20 25 30
0
20
40
60
80
120
R
thJA
- Thermal Resist. Junction/Ambeint (K/W)
I - Lead Length (mm)
949090
100
ll
T
L
= constant
IF - Forward Current (A)
0.001
0.01
0.1
1
10
0 0.5 1.0 1.5 2.0 2.5
VF - Forward Voltage (V)
16412
Tj = 25 °C
Tj = 175 °C
16413
I
FAV
- Average Forward Current (A)
0 20 40 60 80 100 120 140 160 180
Tamb - Ambient Temperature (°C)
0.9
0.7
0.5
0.8
0.6
0.4
0.3
0.2
0.1
0
VR = VRRM
half sinewave
RthJA = 100 K/W
PCB: d = 25 mm
RthJA = 45 K/W
I = 10 mm
1
10
100
1000
25 50 75 100 125 150 175
T
j
- Junction Temperature (°C)
16414
I
R
- Reverse Current (μA)
VR = VRRM
BY268, BY269
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Rev. 1.8, 20-Feb-18 3Document Number: 86005
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
Fig. 5 - Max. Reverse Power Dissipation vs. Junction Temperature Fig. 6 - Diode Capacitance vs. Reverse Voltage
PACKAGE DIMENSIONS in millimeters (inches): SOD-57
0
100
500
200
600
300
700
400
800
900
25 50 75 100 125 150 175
T
j
- Junction Temperature (°C)
16415
P
R
- Reverse Power Dissipation (mW)
VR = VRRM
PR-Limit
at 100 % VR
PR-Limit
at 80 % VR
0
5
10
15
20
25
30
35
0.1 1 10 100
VR - Reverse Voltage (V)
16416
CD - Diode Capacitance (pF)
f = 1 MHz
20543
3.6 (0.142) max.
26 (1.024) min. 4 (0.157) max. 26 (1.024) min.
0.82 (0.032) max.
Legal Disclaimer Notice
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Revision: 08-Feb-17 1Document Number: 91000
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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