SCHOTTKY RECTIFIER 1 Amp
10BQ040
Bulletin PD-2.397 rev. G 07/04
1
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Major Ratings and Characteristics
IF(AV) Rectangular waveform 1.0 A
VRRM 40 V
IFSM @ tp = 5 µs sine 430 A
VF@ 1.0 Apk, TJ=125°C 0.49 V
TJrange - 55 to 150 °C
Characteristics 10BQ040 Units The 10BQ040 surface-mount Schottky rectifier has been de-
signed for applications requiring low forward drop and very
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
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Description/ Features
Case Styles
10BQ040
SMB
IF(AV) = 1 Amp
VR = 40V
10BQ040
Bulletin PD-2.397 rev. G 07/04
2www.irf.com
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 40
Voltage Ratings
VFM Max. Forward Voltage Drop (1) 0.53 V @ 1A
* See Fig. 1 0.70 V @ 2A
0.49 V @ 1A
0.64 V @ 2A
IRM Max. Reverse Leakage Current (1) 0.1 mA TJ = 25 °C
* See Fig. 2 4 mA TJ = 125 °C
CTTypical Junction Capacitance 80 pF VR = 5VDC, (test signal range 100kHz to 1MHz) 25°C
LSTypical Series Inductance 2.0 nH Measured lead to lead 5mm from package body
dv/dt Max. Volatge Rate of Charge 10000 V/ µs
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
Parameters 10BQ Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
IF(AV) Max. Average Forward Current 1.0 A 50% duty cycle @ TL = 112 °C, rectangular wave form
IFSM Max. Peak One Cycle Non-Repetitive 430 A 5µs Sine or 3µs Rect. pulse
Surge Current 45 10ms Sine or 6ms Rect. pulse
EAS Non- Repetitive Avalanche Energy 3.0 mJ TJ = 25 °C, IAS = 1A, L = 6mH
IAR Repetitive Avalanche Current 1.0 A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. Va = 1.5 x Vr typical
Parameters 10BQ Units Conditions
Absolute Maximum Ratings
Following any rated
load condition and
with rated VRRM applied
Part number 10BQ040
TJMax. Junction Temperature Range (*) - 55 to 150 °C
Tstg Max. Storage Temperature Range - 55 to 150 °C
RthJL Max. Thermal Resistance Junction 36 °C/W DC operation
to Lead (**)
RthJA Max. Thermal Resistance Junction 80 °C/W
to Ambient
wt Approximate Weight 0.10 (0.003) g (oz.)
Case Style SMB Similar DO-214AA
Device Marking IR1F
Thermal-Mechanical Specifications
Parameters 10BQ Units Conditions
< thermal runaway condition for a diode on its own heatsink
(**) Mounted 1 inch square PCB
(*) dPtot 1
dTj Rth( j-a)
10BQ040
Bulletin PD-2.397 rev. G 07/04
3
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Fig. 2 - Typical Peak Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Instantaneous Forward Current - I F (A)
Forward Voltage Drop - VFM (V)
Reverse Current - I R (mA)
Reverse Voltage - VR (V)
Reverse Voltage - VR (V)
Junction Capacitance - C T (p F)
Thermal Impedance Z thJC (°C/W)
t1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Leg)
0.1
1
10
0.2 0.4 0.6 0.8 1
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
0.0001
0.001
0.01
0.1
1
10
0 5 10 15 20 25 30 35 40
75˚C
25˚C
125˚C
100˚C
50˚C
Tj = 150˚C
10
100
1000
0 10203040
T = 25˚C
J
0.1
1
10
100
0.00001 0.0001 0.001 0.01 0.1 1 10 100
Single Pulse
(Thermal Resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
2
t
1
t
P
DM
Notes:
1. Duty factor D = t1/ t2 .
2. Peak Tj = Pdm x ZthJC + Tc .
10BQ040
Bulletin PD-2.397 rev. G 07/04
4www.irf.com
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
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 VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= 80% rated VR
Average Forward Current - I F(AV) (A)
Allowable Lead Temperature (°C)
Average Forward Current - I F(AV) (A)
Average Power Loss (Watts)
Square Wave Pulse Duration - Tp (Microsec)
Non-Repetitive Surge Current - I FSM (A)
70
80
90
100
110
120
130
140
150
160
0 0.4 0.8 1.2 1.6
DC
Square wave (D = 0.50)
Rated Vr applied
see note (2)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0
0.2
0.4
0.6
0.8
0 0.3 0.6 0.9 1.2 1.5
DC
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
100
1000
10 100 1000 10000
At Any Rated Load Condition
And With rated Vrrm Applied
Following Surge
10BQ040
Bulletin PD-2.397 rev. G 07/04
5
www.irf.com
3.80 (.150)
3.30 (.130)
4.70 (.185)
4.10 (.161)
2.15 (.085)
1.80 (.071)
2.40 (.094)
1.90 (.075)
1.30 (.051)
0.76 (.030)
0.30 (.012)
0.15 (.006)
5.60 (.220)
5.00 (.197)
4.0 (.157)
2.0 TYP.
(.079 TYP.)
2.5 TYP.
(.098 TYP.) SOLDERING PAD
CATHODE ANODE
1 2
12
POLARITY PART NUMBER
4.2 (.165)
IR LOGO
YYWWX
"Y" = 1st digit of the YEAR "standard product"
"P" = "Lead-Free"
2nd digit of the YEAR
SITE ID
WEEK
CURRENT
VOLTAGE
IR1F
Device Marking: IR1F
Dimensions in millimeters and (inches)
Outline SMB
For recommended footprint and soldering techniques refer to application note #AN-994
Outline Table
Marking & Identification
Each device has 2 rows for identification. The first row designates the device as manufactured by International
Rectifier, indicated by the letters "IR", and the Part Number (indicates the current, the voltage rating and
Schottky Generation). The second row indicates the year, the week of manufacturing and the Site ID.
10BQ040
Bulletin PD-2.397 rev. G 07/04
6www.irf.com
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 07/04
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
Tape & Reel Information
Dimensions in millimetres and (inches)
Ordering Information Table
Device Code
1524
3
1- Current Rating
2- B = Single Lead Diode
3- Q = Schottky Q Series
4- Voltage Rating (040 = 40V)
5-y none= Box (1000 pieces)
y TR = Tape & Reel (3000 pieces)
6y none= Standard Production
y PbF = Lead-Free
10 B Q 040 TR -
6
