SCHOTTKY RECTIFIER 1.1 Amp
11DQ03
11DQ04
PD-2.287 rev. A 12/97
1www.irf.com
Dimensions in millimeters and inches
Conform to JEDEC Outline DO-204AL (DO-41)
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
IF(AV) Rectangular 1.1 A
waveform
VRRM 30/40 V
IFSM @ tp = 5 µs sine 240 A
VF@ 1 Apk, TJ
= 25°C 0.55 V
TJrange - 40 to 125 °C
Characteristics 11DQ.. Units The 11DQ.. axial leaded Schottky rectifier has been optimized
for very low forward voltage drop, with moderate leakage.
Typical applications are in switching power supplies, convert-
ers, 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
Description/Features
11DQ03, 11DQ04
PD-2.287 rev. A 12/97
2www.irf.com
Part number 11DQ03 11DQ04
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
30 40
IF(AV) Max. Average Forward Current 1.1 A 50% duty cycle @ TA = 58 °C, rectangular wave form
* See Fig. 4
IFSM Max. Peak One Cycle Non-Repetitive 240 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 6 40 10ms Sine or 6ms Rect. pulse
Absolute Maximum Ratings
Parameters 11DQ.. Units Conditions
VFM Max. Forward Voltage Drop 0.55 V @ 1A
* See Fig. 1 ( 1) 0.71 V @ 2A
0.50 V @ 1A
0.61 V @ 2A
IRM Max. Reverse Leakage Current 1.0 mA TJ = 25 °C
* See Fig. 2 ( 1) 6.0 mA TJ = 125 °C
CTTypical Junction Capacitance 60 p F VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance 8. 0 n H Measured lead to lead 5mm from package body
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Parameters 11DQ.. Units Conditions
Electrical Specifications
Following any rated
load condition and with
rated VRRM applied
A
(1) Pulse Width < 300µs, Duty Cycle <2%
TJMax. Junction Temperature Range -40 to 125 °C
Tstg Max. Storage Temperature Range -40 to 125 °C
RthJA Max. Thermal Resistance Junction 130 °C/W DC operation
to Ambient Without cooling fin
RthJA Typical Thermal Resistance Junction 81 °C/W PC board mounted [L = 8mm (0.315 in.)]
to Ambient with PC Board Mounted Solder land area 100mm2 (0.155 in2.)
wt Approximate Weight 0.33(0.012) g (oz.)
Case Style DO-204AL(DO-41)
Thermal-Mechanical Specifications
Parameters 11DQ.. Units Conditions
11DQ03, 11DQ04
PD-2.287 rev. A 12/97
3
www.irf.com
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
.0001
.001
.01
.1
1
10
0 5 10 15 20 25 30 35 4
0
R
R
100°C
75°C
50°C
25°C
R everse Voltage - V (V )
Revers e C urre nt - I (m A)
T = 125°C
J
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10
100
0 5 10 15 20 25 30 35 40 4
5
T = 25°C
J
R e ve rse V o lta g e - V (V )
R
T
Ju nction C apa citance - C (pF)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
.1
1
10
0.3.6.91.
2
FM
F
Instantaneo us Forw ard C urre nt - I (A)
Forw ard Voltage D rop - V (V )
T = 125°C
T = 25°C
J
J
11DQ03, 11DQ04
PD-2.287 rev. A 12/97
4www.irf.com
0
.2
.4
.6
.8
1
0.4.81.21.
6
DC
Average Power Loss - (W atts)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Lim it
A verag e Fo rwa r d Cu r re nt - I (A)
40
50
60
70
80
90
100
110
120
130
0.2.4.6.811.21.41.
6
DC
Allowab le C as e Tem p e ratu re - (°C)
Av e r a ge Fo r ward Cu rre nt - I (A)
F(AV)
PC Board M ounted
R ( DC) = 8 1 °C/W
thJA
Fig. 5 - Forward Power Loss CharacteristicsFig. 4 - Maximum Ambient Temperature Vs. Average Forward
Current, Printed Circuit Board Mounted
Fig. 6 - Maximum Non-Repetitive Surge Current
10
100
1000
10 100 1000 10000
FSM
p
N on-Repetiti ve Surge Current - I (A)
A t Any Rat ed Load Cond iti on
A nd Wi th Rated V A ppl i ed
Follo w ing Surge
RRM
Squa re Wave Pulse Dur ation - t (micr ose c)
