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Details, datasheet, quote on part number:31DQ03
 
 
Part:31DQ03
Category:Discrete => Diodes & Rectifiers => Schottky Barrier Rectifiers => <5 AMP
Description:30V 3.3A Schottky Discrete Diode in a DO-201AD Package
Company:International Rectifier Corp.
Datasheet:Download 31DQ03 datasheet   File size : 33 kB
Request For quote:  Find where to buy 31DQ03
 



Datasheet text preview:
Bulletin PD-2.304 rev. E 03/03

31DQ03 31DQ04
SCHOTTKY RECTIFIER 3.3 Amp

Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 µs sine VF TJ @ 3 Apk, TJ = 25°C

Description/Features Units
A V A V °C The 31DQ.. axial leaded Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. Low profile, axial leaded outline High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability

31DQ..
3.3 30/40 450 0.57 - 40 to 150

CASE STYLE AND DIMENSIONS

Outline C - 16 Dimensions in millimeters and inches

www.irf.com

1

31DQ03, 31DQ04
Bulletin PD-2.304 rev. E 03/03

Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)

31DQ03
30

31DQ04
40

Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current * See Fig. 4 IFSM EAS I AR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 6 Non-Repetitive Avalanche Energy Repetitive Avalanche Current 450 90 6.0 1.0 A mJ A 5µs Sine or 3µs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied

31DQ..
3.3

Units
A

Conditions
50% duty cycle @ TC = 73°C, rectangular wave form

TJ = 25 °C, IAS = 1.0 Amps, L = 12 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical

Electrical Specifications
Parameters
VF M Max. Forward Voltage Drop * See Fig. 1 (1)

31DQ.. Units
0.57 0.71 0.51 0.62 1 20 190 9.0 10000 V V V V mA mA pF nH V/µs @ 3A @ 6A @ 3A @ 6A

Conditions
TJ = 25 °C TJ = 125 °C

IRM CT LS

Max. Reverse Leakage Current * See Fig. 2 (1) Typical Junction Capacitance Typical Series Inductance

TJ = 25 °C

VR = rated VR TJ = 125 °C VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C Measured lead to lead 5mm from package body (Rated VR)

dv/dt Max. Voltage Rate of Change
(1) Pulse Width < 300µs, Duty Cycle <2%

Thermal-Mechanical Specifications
Parameters
TJ T stg Max. Storage Temperature Range

31DQ.. Units
°C °C -40 to 150 80 34

Conditions

Max. Junction Temperature Range (*) -40 to 150

RthJA Max. Thermal Resistance Junction to Ambient RthJL Typical Thermal Resistance Junction to Lead wt Approximate Weight Case Style
(*) dPtot dTj < 1 Rth( j-a)

°C/W DC operation Without cooling fins °C/W With fin 20 x 20 (0.79 x 0.79) 1.0 (0.04) thick. Dimensions in millimeters (inches)

1.2 (0.042) g (oz.) C - 16

thermal runaway condition for a diode on its own heatsink

2

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31DQ03, 31DQ04
Bulletin PD-2.304 rev. E 03/03

100
100
Reverse Current - IR (mA)
T J = 150°C

10

1

125°C

0.1

0.01
25°C

Instantaneous Forward Current - IF (A)

10

0.001 0 10 20 30 40
Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage
TJ = 150°C TJ = 125°C

1

TJ = 25°C

1000
Junction Capacitance - CT (pF)

T = 25°C J

100

0.1 0 0.3 0.6 0.9 1.2

Forward Voltage Drop - VFM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics

10 0 40 80 120 160 200
Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage

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3

31DQ03, 31DQ04
Bulletin PD-2.304 rev. E 03/03

150
Allowable Lead Temperature (°C) Average Power Loss (Watts)

2.5
D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMS Limit DC

120
DC

2

90

1.5

60

Square wave (D = 0.50) 80% Rated V applied R

1

30
see note (2)

0.5

0 0 1 2 3 4 5
Average Forward Current - IF(AV) (A) Fig. 4 - Max. Allowable Lead Temperature Vs. Average Forward Current

0 0 1 2 3 4 5
Average Forward Current - IF(AV) (A) Fig. 5- Forward Power Loss Characteristics

1000
Non-Repetitive Surge Current - IFSM (A)

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 - Max. Non-Repetitive Surge Current

(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ; Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6); PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR

4

www.irf.com

31DQ03, 31DQ04
Bulletin PD-2.304 rev. E 03/03

Ordering Information Table
Device Code

31
1

D
2

Q
3

04
4

TR
5

1 2 3 4 5

-

3 1 = 3.1A (Axial and small packages - Current is x10) D = DO-41 package Q = Schottky Q.. Series 0 4 = Voltage Ratings T R = Tape & Reel package (1200 pcs) = Box package (500 pcs) 04 = 40V 03 = 30V

D a t a and specifications subject to change without notice. T h i s product has been designed and qualified for Industrial Level. Q u a l i f i c a t i o n Standards can be found on IR's Web site.

IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 T A C Fax: (310) 252-7309 V i s i t us at www.irf.com for sales contact information. 03/03

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