MBRS140LT3G - ON Semiconductor

October, 2007 − Rev. 3 1Publication Order Number:

MBRS140LT3/D

MBRS140LT3

Surface Mount

Schottky Power Rectifier

SMB Power Surface Mount Package

This device employs the Schottky Barrier principle in a

metal−to−silicon power rectifier. Features epitaxial construction with

oxide passivation and metal overlay contact. Ideally suited for low

voltage, high frequency switching power supplies; free wheeling

diodes and polarity protection diodes.

Features

•Compact Package with J−Bend Leads Ideal for Automated Handling

•Highly Stable Oxide Passivated Junction

•Guardring for Over−Voltage Protection

•Low Forward Voltage Drop

•Pb−Free Package is Available

Mechanical Characteristics:

•Case: Molded Epoxy

•Epoxy Meets UL 94 V−0 @ 0.125 in

•Weight: 95 mg (Approximately)

•Cathode Polarity Band

•Lead and Mounting Surface Temperature for Soldering Purposes:

260°C Max. for 10 Seconds

•Finish: All External Surfaces Corrosion Resistant and Terminal

Leads are Readily Solderable

MAXIMUM RATINGS

Rating Symbol Value Unit

Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage

DC Blocking Voltage

VRRM

VRWM

40 V

Average Rectified Forward Current

(At Rated VR, TC = 110°C) IO1.0 A

Peak Repetitive Forward Current (At Rated

VR, Square Wave, 100 kHz, TC = 110°C) IFRM 2.0 A

Non−Repetitive Peak Surge Current

(Surge Applied at Rated Load Conditions

Halfwave, Single Phase, 60 Hz)

IFSM 40 A

Storage / Operating Case Temperature Tstg, TC−55 to +150 °C

Operating Junction Temperature TJ−55 to +125 °C

Voltage Rate of Change

(Rated VR, TJ = 25°C) dv/dt 10,000 V/ms

Stresses exceeding Maximum Ratings may damage the device. Maximum

Ratings are stress ratings only. Functional operation above the Recommended

Operating Conditions is not implied. Extended exposure to stresses above the

Recommended Operating Conditions may affect device reliability.

Device Package Shipping†

ORDERING INFORMATION

SMB

CASE 403A

PLASTIC

MBRS140LT3 SMB 2500/Tape & Reel

SCHOTTKY BARRIER

RECTIFIER

1.0 AMPERE − 40 VOLTS

MARKING DIAGRAM

http://onsemi.com

B14L = Specific Device Code

A = Assembly Location

Y = Year

WW = Work Week

G= Pb−Free Package

AYWW

B14LG

(Note: Microdot may be in either location)

MBRS140LT3G SMB

(Pb−Free) 2500/Tape & Reel

† For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

MBRS140LT3

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THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Thermal Resistance, Junction−to−Lead (Note 1) RqJL 24 °C/W

Thermal Resistance, Junction−to−Ambient (Note 2) RqJA 80 °C/W

1. Mounted with minimum recommended pad size, PC Board FR4.

2. 1 inch square pad size (1 x 0.5 inch for each lead) on FR4 board.

ELECTRICAL CHARACTERISTICS

Characteristic Symbol TJ = 25°C TJ = 125°C Unit

Maximum Instantaneous Forward Voltage (Note 3) (iF = 1.0 A)

see Figure 2 (iF = 2.0 A)

vF0.5

0.6 0.425

0.58 V

Maximum Instantaneous Reverse Current (Note 3) (VR = 40 V

)

see Figure 4 (VR = 20 V

)

TJ = 25°C TJ = 100°C

0.4

0.02 10

5.0

3. Pulse Test: Pulse Width ≤ 250 ms, Duty Cycle ≤2.0%.

MBRS140LT3

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Figure 1. Typical Forward Voltage Figure 2. Maximum Forward Voltage

Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current

Figure 5. Current Derating Figure 6. Forward Power Dissipation

0.70.1

vF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)

1.0

400

VR, REVERSE VOLTAGE (VOLTS)

100E−3

10E−3

1.0E−3

100E−6

10E−6

1.0E−6

45 8525

TL, LEAD TEMPERATURE (°C)

1.6

0.8

0.4

IO, AVERAGE FORWARD CURRENT (AMPS)

0.2 0.80

0.9

0.8

0.6

0.5

0.2

iF, INSTANTANEOUS FORWARD CURRENT (AMPS)I

0.1

0.3 0.5 0.9

10 20 30

, AVERAGE FORWARD CURRENT (AMPS)IO

125105 0.4 1.60.6

0.3

PFO, AVERAGE POWER DISSIPATION (WATTS)

100

TJ = 125°C

100°C

25°C

−40 °C

0.70.1

VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOLTS)

1.0

IF, INSTANTANEOUS FORWARD CURRENT (AMPS)

0.1

0.3 0.5 0.9

100

TJ = 125°C

100°C

25°C

, REVERSE CURRENT (AMPS)

400

VR, REVERSE VOLTAGE (VOLTS)

100E−3

10E−3

1.0E−3

100E−6

10E−6

1.0E−6

10 20 30

, MAXIMUM REVERSE CURRENT (AMPS)

1.2

FREQ = 20 kHz

TJ = 125°C

100°C

25°C

TJ = 125°C

100°C

25°C

SQUARE WAVE

Ipk/Io = p

Ipk/Io = 5.0

Ipk/Io = 10

Ipk/Io = 20

SQUARE WAVE

Ipk/Io = p

Ipk/Io = 5.0

Ipk/Io = 10

Ipk/Io = 20

1.4

0.6

0.2

1.0

1.41.0 1.2

0.1

0.4

0.7

MBRS140LT3

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Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating

Figure 9. Thermal Response, Junction−to−Lead

Figure 10. Thermal Response, Junction−to−Ambient

300

VR, REVERSE VOLTAGE (VOLTS)

1000

100

VR, DC REVERSE VOLTAGE (VOLTS)

25 400

105

C, CAPACITANCE (pF)

155.0 10 20 25 35 40 30 355.0 10 2015

115

125

, DERATED OPERATING TEMPERATURE ( C)

J°

* Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any re-

verse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating

TJ may be calculated from the equation: TJ = TJmax − r(t)(Pf + Pr) where

r(t) = thermal impedance under given conditions,

Pf = forward power dissipation, and

Pr = reverse power dissipation

This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax − r(t)Pr,

where r(t) = Rthja. For other power applications further calculations must be performed.

Rtja = 94°C/W

44°C/W 63°C/W

80°C/W

24°C/W

TJ = 25°C

0.10.00001

t, TIME (s)

1.0E+00

1.0E−01

1.0E−02

1.0E−03

1.0E−04

0.0001 0.001 0.01

, TRANSIENT THERMAL RESISTANCE (NORMALIZED)

1.0 10 100 1000

50%

20%

10%

5.0%

2.0%

1.0%

Rtjl(t) = Rtjl*r(t)

0.10.00001

t, TIME (s)

1.0E+00

1.0E−01

1.0E−02

1.0E−03

1.0E−04

0.0001 0.001 0.01 1.0 10 100 1000

50%

20%

10%

5.0%

2.0%

1.0%

Rtjl(t) = Rtjl*r(t)

R , TRANSIENT THERMAL RESISTANCE (NORMALIZED)

MBRS140LT3

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PACKAGE DIMENSIONS

SMB

PLASTIC PACKAGE

CASE 403A−03

ISSUE F

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P.

DIM

AMIN NOM MAX MIN

MILLIMETERS

1.90 2.13 2.45 0.075

INCHES

A1 0.05 0.10 0.20 0.002

b1.96 2.03 2.20 0.077

c0.15 0.23 0.31 0.006

D3.30 3.56 3.95 0.130

E4.06 4.32 4.60 0.160

L0.76 1.02 1.60 0.030

0.084 0.096

0.004 0.008

0.080 0.087

0.009 0.012

0.140 0.156

0.170 0.181

0.040 0.063

NOM MAX

5.21 5.44 5.60 0.205 0.214 0.220

0.51 REF 0.020 REF

2.261

0.089

2.743

0.108

2.159

0.085 ǒmm

inchesǓ

SCALE 8:1

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

SOLDERING FOOTPRINT*

ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice

to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All

operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights

nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications

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and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

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PUBLICATION ORDERING INFORMATION

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USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5773−3850

MBRS140LT3/D

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