Document
Bulletin PD-20585 rev. E 07/04
MBRS340TR
SCHOTTKY RECTIFIER 3 Amp
IF(AV) = 3.0Amp VR = 40V
Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM IFSM @ t p= 5 µs sine VF TJ @3.0Apk,TJ=125°C range
Description/ Features Units
A V A V °C The MBRS340TR 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, free-wheeling diodes, battery charging, and reverse battery protection. Small foot print, surface mountable Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability
Value
3.0 40 1580 0.43 - 55 to 150
Case Styles MBRS340TR
SMC
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1
MBRS340TR
Bulletin PD-20585 rev. E 07/04
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)
MBRS340TR
40
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current
Value
3.0 4.0
Units Conditions
A 50% duty cycle @ TL = 118 °C, rectangular wave form 50% duty cycle @ TL = 110 °C, rectangular wave form A 5µs Sine or 3µs Rect. pulse 10ms Sine or 6ms Rect. pulse mJ A TJ = 25 °C, IAS = 1.0A, L = 12mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. Va = 1.5 x Vr typical Following any rated load condition and with rated VRRM applied
IFSM EAS IAR
Max. Peak One Cycle Non-Repetitive Surge Current Non Repetitive Avalanche Energy Repetitive Avalanche Current
1580 80 6 1.0
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (1)
Value
0.525 0.68 0.43 0.57
Units Conditions
V V V V mA mA mA pF nH V/µs @ 3A @ 6A @ 3A @ 6A TJ = 25 °C TJ = 100°C TJ = 125 °C VR = 5VDC(test signal range 100KHz to 1Mhz) 25°C Measured lead to lead 5mm from package body (Rated VR) VR = rated VR TJ = 25 °C TJ = 125 °C
IRM
Max. Reverse Leakage Current
(1)
2.0 20 35
CT LS
Max. Junction Capacitance Typical Series Inductance
230 3.0 10000
dv/dt Max. Voltage Rate of Change
(1) Pulse Width < 300µs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max.JunctionTemperatureRange (*) Max. Storage Temperature Range (**) 46 °C/W DC operation
Value
- 55 to 150 - 55 to 150 12
Units
°C °C °C/W DC operation
Conditions
RthJL Max. Thermal Resistance Junction to Lead RthJA Max. Thermal Resistance Junction to Ambient wt Approximate Weight Case Style Device Marking
(*) dPtot
0.24(0.008) g (oz.) SMC IR34 Similar to DO-214AB
1 < thermal runaway condition for a diode on its own heatsink dTj Rth( j-a) (**) Mounted 1 inch square PCB
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MBRS340TR
Bulletin PD-20585 rev. E 07/04
10
100000
T J = 150˚C 125˚C 100˚C
Reverse Current - I R (mA)
10000
1000
75˚C
100
50˚C
(A)
10
25˚C
Instantaneous Forward Current - I
F
T = 150˚C
J J J
1 0 10 20 30 Reverse Voltage - VR (V) 40
1
T = 125˚C T = 25˚C
Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) 1000
Junction Capacitance - C T (p F)
T = 25˚C J
100
0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Forward Voltage Drop - VFM (V)
10 0 5 10 15 20 25 30 35 40 45 Reverse Voltage - VR (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg)
100
Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)
(°C/W)
10
Thermal Impedance Z
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20
thJC
PDM
t1
1
Single Pulse (Thermal Resistance)
Notes:
t2
1. Duty factor D = t1/ t 2 2. Peak Tj = Pdm x ZthJC+Tc
0.1 0.00001
0.0001
0.001
0.01 0.1 1 t1 , Rectangular Pulse Duration (Seconds)
10
100
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Leg)
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MBRS340TR
Bulletin PD-20585 rev. E 07/04
160
Allowable Lead Temperature (°C)
140 130 120 110 100 90 80 70 see note (2) 60 0 1 2 3
Square wave (D = 0.50) Rated Vr applied
Average Power Loss (Watts)
150
DC
D=0.20 D=0.25 D=0.33 D=0.50 D=0.75
2
1.5
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 RMS Limit
DC
1
0.5
4
5
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Average Forward Current - I F(AV) (A) Fig. 5 - Maximum Average Forward Dissipation Vs. Average Forward Current
Average Forward Current - I F(AV) (A) Fig. 4 - Maximum Average Forward Current Vs. Allowable Lead Temperature
Non-Repetitive Surge Current - I
FSM
(A)
1000
100
At Any Rated Load Condition And With rated Vrrm Applied Following Surge
10 10
100
1000
10000
Square Wave Pulse Duration - Tp (Microsec) Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ; Pd = Forward Power Loss = IF(AV) x V FM @ (IF(AV) / D) (see Fig. 6); PdREV = Inverse Power Loss = V R1 x IR (1 - D); IR @ VR1 = 80% rated VR
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MBRS340TR
Bulletin PD-20585 rev. E 07/04
Outline Table
Device Marking: IR34
2.75 (.108) 3.15 (.124) 5.59 (.220) 6.22 (.245)
CATHODE
ANODE
6.60 (.260) 7.11 (.280) .152 (.006) .305 (.012) 2.00 (.079) 2.62 (.103) 0.76 (.030) 1.52 (.060) 7.75 (.305) 8.13 (.