Document Number: 89317 For technical questions within your region, please contact one of the following: www.vishay.com
Revision: 10-Nov-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 1
Surface Mount Trench MOS Barrier Schottky Rectifier
VSSB420S
Vishay General Semiconductor
New Product
FEATURES
• Low profile package
• Ideal for automated placement
• Trench MOS Schottky technology
• Low power losses, high efficiency
• Low forward voltage drop
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
•Halogen-free according to IEC 61249-2-21 definition
TYPICAL APPLICATIONS
For use in high frequency converters, freewheeling diodes,
DC/DC converters and polarity protection applications.
MECHANICAL DATA
Case: DO-214AA (SMB)
Molding compound meets UL 94 V-0 flammability rating
Base P/N-M3 - halogen-free and RoHS compliant,
commercial grade
Terminals: Matte tin plated leads, solderable per
J-STD-002 and JESD 22-B102
M3 suffix meets JESD 201 class 1A whisker test
Polarity: Color band denotes the cathode end
Notes
(1) Units mounted on PCB with 20 mm x 20 mm pad areas
(2) Free air, mounted on recommended PCB 1 oz. pad area
PRIMARY CHARACTERISTICS
IF(AV) 4.0 A
VRRM 200 V
IFSM 40 A
VF at IF = 4.0 A 0.71 V
TJ max. 150 °C
DO-214AA (SMB)
TMBS
®
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL VSSB420S UNIT
Device marking code V4D
Maximum repetitive peak reverse voltage VRRM 200 V
Maximum DC forward current
IF (1) 4.0
A
IF (2) 1.8
Peak forward surge current 10 ms single half sine-wave
superimposed on rated load IFSM 40 A
Voltage rate of change (rated VR) dV/dt 10 000 V/μs
Operating junction and storage temperature range TJ, TSTG - 40 to + 150 °C
www.vishay.com For technical questions within your region, please contact one of the following: Document Number: 89317
2DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com Revision: 10-Nov-10
VSSB420S
Vishay General Semiconductor
New Product
Notes
(1) Pulse test: 300 μs pulse width, 1 % duty cycle
(2) Pulse test: Pulse width 40 ms
Notes
(1) Free air, mounted on recommended PCB 1 oz. pad area; thermal resistance RJA - junction to ambient
(2) Units mounted on PCB with 20 mm x 20 mm copper pad areas; thermal resistance RJM - junction to mount
RATINGS AND CHARACTERISTICS CURVES
(TA = 25 °C unless otherwise noted)
Fig. 1 - Maximum Forward Current Derating Curve Fig. 2 - Forward Power Loss Characteristics
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER TEST CONDITIONS SYMBOL TYP. MAX. UNIT
Instantaneous forward voltage IF = 4.0 A
TA = 25 °C
VF (1) 1.44 1.90
V
TA = 125 °C 0.71 0.80
Reverse current per diode
VR = 180 V
TA = 25 °C
IR (2)
3-μA
TA = 125 °C 0.7 - mA
VR = 200 V
TA = 25 °C 4 150 μA
TA = 125 °C 1.1 10 mA
Typical junction capacitance 4.0 V, 1 MHz CJ120 - pF
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL VSSB420S UNIT
Typical thermal resistance
RJA (1) 120
°C/W
RJM (2) 15
ORDERING INFORMATION (Example)
PREFERRED P/N UNIT WEIGHT (g) PREFERRED PACKAGE CODE BASE QUANTITY DELIVERY MODE
VSSB420S-M3/52T 0.096 52T 750 7" diameter plastic tape and reel
VSSB420S-M3/5BT 0.096 5BT 3200 13" diameter plastic tape and reel
025 50 75 100 125
5.0
150
TM - Mount Temperature (°C)
Average Forward Rectified Current (A)
2.5
2.0
1.5
0.5
0
1.0
TM Measured at Terminal
3.0
4.0
3.5
4.5
04.4
0
4
Average Forward Current (A)
Average Power Loss (W)
1.5
1.0
0.5
4.0
3.6
3.2
2.8
2.4
2.0
0.4
D = tp/T tp
T
D = 0.1
D = 0.5 D = 0.8
D = 1.0
3.5
3.0
2.5
2.0
D = 0.3
D = 0.2
1.6
1.2
0.8
Document Number: 89317 For technical questions within your region, please contact one of the following: www.vishay.com
Revision: 10-Nov-10 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 3
VSSB420S
Vishay General Semiconductor
New Product
Fig. 3 - Typical Instantaneous Forward Characteristics
Fig. 4 - Typical Reverse Characteristics
Fig. 5 - Typical Junction Capacitance
Fig. 6 - Typical Transient Thermal Impedance
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
1
100
0
0.1
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
T
A
= 125 °C
T
A
= 25 °C
T
A
= 100 °C
T
A
= 150 °C
10
0.2
0.4 0.6 0.8
1.0
1.2
1.61.4
10 20 40 60
0.00001
0.0001
0.001
0.01
0.1
10
80100
Percent of Rated Peak Reverse Voltage (%)
T
A
= 125 °C
T
A
= 25 °C
T
A
= 100 °C
T
A
= 150 °C
30 50 70 90
Instantaneous Reverse Current (mA)
1
100
10
10
100
1000
0.1 1
Reverse Voltage (V)
Junction Capacitance (pF)
TJ = 25 °C
f = 1.0 MHz
Vsig = 50 mVp-p
100
10
1
100
1000
0.01 1
t - Pulse Duration (s)
Transient Thermal Impedance (°C/W)
10
0.1
Junction to Ambient
0.012 (0.305)
0.006 (0.152)
0.008(0.2)
0.180 (4.57)
0.160 (4.06)
0.155 (3.94)
0.130 (3.30)
0.086 (2.20)
0.077 (1.95)
0.220 (5.59)
0.205 (5.21)
0.060 (1.52)
0.030 (0.76)
0.096 (2.44)
0.084 (2.13)
DO-214AA (SMB)
0 (0)
Cathode Band
0.085 (2.159)
MAX.
0.220 REF.
0.086 (2.18)
MIN.
0.060 (1.52)
MIN.
Mounting Pad Layout
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
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
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
