Document Number: 94179 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 04-Mar-10 1
Schottky Rectifier, 3.0 A
VS-30BQ040PbF
Vishay High Power Products
FEATURES
• Small foot print, surface mountable
• Very low forward voltage drop
• High frequency operation
• Guard ring for enhanced ruggedness and long term
reliability
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Compliant to RoHS directive 2002/95/EC
• Designed and qualified for industrial level
DESCRIPTION
The VS-30BQ040PbF surface mount Schottky rectifier has
been designed for applications requiring low forward drop
and small foot prints on PC boards. Typical applications are
in disk drives, switching power supplies, converters,
freewheeling diodes, battery charging, and reverse battery
protection.
PRODUCT SUMMARY
IF(AV) 3.0 A
VR40 V
Cathode Anode
SMC
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VALUES UNITS
IF(AV) Rectangular waveform 3.0 A
VRRM 40 V
IFSM tp = 5 μs sine 2000 A
VF3.0 Apk, TJ = 125 °C 0.43 V
TJRange - 55 to 150 °C
VOLTAGE RATINGS
PARAMETER SYMBOL VS-30BQ040PbF UNITS
Maximum DC reverse voltage VR40 V
Maximum working peak reverse voltage VRWM
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current IF(AV)
50 % duty cycle at TL = 118 °C, rectangular waveform 3.0
A
50 % duty cycle at TL = 110 °C, rectangular waveform 4.0
Maximum peak one cycle
non-repetitive surge current IFSM
5 μs sine or 3 μs rect. pulse Following any rated
load condition and with
rated VRRM applied
2000
10 ms sine or 6 ms rect. pulse 110
Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 1.0 A, L = 12 mH 6.0 mJ
Repetitive avalanche current IAR
Current decaying linearly to zero in 1 μs
Frequency limited by TJ maximum VA = 1.5 x VR typical 1.0 A
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94179
2Revision: 04-Mar-10
VS-30BQ040PbF
Vishay High Power Products Schottky Rectifier, 3.0 A
Note
(1) Pulse width < 300 μs, duty cycle < 2 %
Notes
(1) thermal runaway condition for a diode on its own heatsink
(2) Mounted 1" square PCB
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum forward voltage drop VFM (1)
3 A TJ = 25 °C 0.53
V
6 A 0.68
3 A TJ = 125 °C 0.43
6 A 0.57
Maximum reverse leakage current IRM (1) TJ = 25 °C VR = Rated VR
0.5 mA
TJ = 125 °C 30
Maximum junction capacitance CTVR = 5 VDC (test signal range 100 kHz to 1 MHz), 25 °C 230 pF
Typical series inductance LSMeasured lead to lead 5 mm from package body 3.0 nH
Maximum voltage rate of change dV/dt Rated VR10 000 V/μs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum junction and storage
temperature range TJ (1), TStg - 55 to 150 °C
Maximum thermal resistance,
junction to lead RthJL (2)
DC operation
12
°C/W
Maximum thermal resistance,
junction to ambient RthJA 46
Approximate weight 0.24 g
0.008 oz.
Marking device Case style SMC (similar to DO-214AB) V3F
dPtot
dTJ
------------- 1
RthJA
--------------<
Document Number: 94179 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 04-Mar-10 3
VS-30BQ040PbF
Schottky Rectifier, 3.0 A Vishay High Power Products
Fig. 1 - Maximum Forward Voltage Drop Characteristics (Per Leg) Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg)
0.1
1
10
I
F
- Instantaneous Forward Current (A)
V
FM
- Forward Voltage Drop (V)
0.1 0.3 0.6 0.8 0.90.70.40.20 0.5
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
1
10
100
1000
10 000
100 000
IR - Reverse Current (µA)
VR - Reverse Voltage (V)
10 30 40200
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
10
100
1000
CT - Junction Capacitance (pF)
VR - Reverse Voltage (V)
515 30
40 45
352010025
TJ = 25 °C
0.1
1
10
100
0.00001 0.0001 0.001 0.01 0.1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
100110
Single pulse
(thermal resistance)
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94179
4Revision: 04-Mar-10
VS-30BQ040PbF
Vishay High Power Products Schottky Rectifier, 3.0 A
Fig. 5 - Maximum Average Forward Current vs.
Allowable Lead Temperature
Fig. 6 - Maximum Average Forward Dissipation vs.
Average Forward Current
Fig. 7 - Maximum Peak Surge Forward Current vs. Pulse Duration
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR
70
80
90
100
110
120
130
140
150
160
Allowable Lead Temperature (°C)
I
F(AV)
- Average Forward Current (A)
135
420
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Square wave (D = 0.50)
80 % rated VR applied
See note (1)
0
1.0
1.5
0.5
2.0
Average Power Loss (W)
IF(AV) - Average Forward Current (A)
0.5 1.5 3.0 4.5
3.5 4.02.01.002.5
DC
RMS limit
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
10
1000
100
10 000
I
FSM
- Non-Repetitive Surge Current (A)
t
p
- Square Pulse Duration (µs)
10 000100010010
At any rated load condition
and with rated VRRM applied
following surge
Document Number: 94179 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 04-Mar-10 5
VS-30BQ040PbF
Schottky Rectifier, 3.0 A Vishay High Power Products
ORDERING INFORMATION TABLE
2- Current rating
3- B = Single lead diode
4- Q = Schottky “Q” series
5- Voltage rating (040 = 40 V)
6- None = Box (1000 pieces)
TR = Tape and reel (3000 pieces)
- PbF = Lead (Pb)-free
7
Device code
51324
67
VS- 30 B Q 040 TR PbF
1- HPP product suffix
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95023
Part marking information www.vishay.com/doc?95029
Packaging information Tape and reel www.vishay.com/doc?95034
Bulk www.vishay.com/doc?95397
SPICE model www.vishay.com/doc?95324
Document Number: 95023 For technical questions concerning discrete products, contact: diodes-tech@vishay.com www.vishay.com
Revision: 05-Nov-08 For technical questions concerning module products, contact: ind-modules@vishay.com 1
SMC
Outline Dimensions
Vishay High Power Products
DIMENSIONS in millimeters (inches)
6.60 (0.260)
7.11 (0.280)
2.00 (0.079)
2.62 (0.103)
0.76 (0.030)
1.52 (0.060) 7.75 (0.305)
8.13 (0.320)
0.102 (0.004)
0.203 (0.008)
0.152 (0.006)
0.305 (0.012)
5.59 (0.220)
6.22 (0.245)
4.69 MAX.
(0.185 MAX.)
3.20 MIN.
(0.126 MIN.)
1.52 MIN.
(0.060 MIN.)
0.320 REF.
2.75 (0.108)
3.15 (0.124)
12
1 Polarity Part number
2
Soldering pad
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
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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.
