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 225 A
VF@
1 Apk, TJ
= 25°C 0.55 V
TJrange - 40 to 150 °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
SCHOTTKY RECTIFIER 1.1 Amp
11DQ03
11DQ04
PD-2.287 rev. B 02/2000
1
11DQ03, 11DQ04
PD-2.287 rev. B 02/2000
2
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 =75 °C, rectangular wave form
* See Fig. 4
IFSM Max. Peak One Cycle Non-Repetitive 225 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 6 35 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 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance 8.0 nH 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 150 °C
Tstg Max. Storage Temperature Range -40 to 150 °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. B 02/2000
3
0.1
1
10
0 0.3 0.6 0.9 1.2 1.5
T = 150˚C
T = 125˚C
T = 25˚C
J
J
J
0.0001
0.001
0.01
0.1
1
10
100
010203040
125˚C
25˚C
T = 150˚C
J
10
100
0 1020304050
T = 25˚C
J
Fig. 1 - Max. Forward Voltage Drop Characteristics
Forward Voltage Drop - VFM (V)
Instantaneous Forward Current - IF (A)
Reverse Voltage - VR (V)
Reverse Voltage - VR (V)
Junction Capacitance - CT (pF)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
Reverse Current - IR (mA)
11DQ03, 11DQ04
PD-2.287 rev. B 02/2000
4
10
100
1000
10 100 1000 10000
At Any Rated Load Condition
And With Rated V Applied
Following Surge RRM
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
0
30
60
90
120
150
0 0.3 0.6 0.9 1.2 1.5
DC
see note (2)
Square wave (D = 0.50)
80% Rated V applied
R
Average Forward Current - IF(AV)
(A)
Square Wave Pulse Duration - tp (microsec)
Fig. 6 - Max. Non-Repetitive Surge Current
Allowable Case Temperature - (°C)
Non-Repetitive Surge Current - IFSM (A)
Fig. 5- Forward Power Loss Characteristics
Average Forward Current - IF(AV) (A)
Average Power Loss - (Watts)
(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
Fig. 4 - Max. Allowable Case Temperature
Vs. Average Forward Current
11DQ03, 11DQ04
PD-2.287 rev. B 02/2000
5
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