Bulletin PD-20558 rev. E 01/03
Anode
1
3
4
Anode
2
Base
Common
Cathode
Common
Cathode
12CWQ03FN
SCHOTTKY RECTIFIER
Major Ratings and Characteristics
Characteristics 12CWQ03FN Units
I
Rectangular 12 A
F(AV)
waveform
V
RRM
I
@ tp = 5 µs sine 320 A
FSM
VF@ 6 Apk, TJ = 125°C 0.37 V
(per leg)
TJrange - 55 to 150 °C
6.73 (0.26)
6.35 (0.25)
5.46 (0.21)
5.21 (0.20)
4
1.64 (0.02)
123
1.52 (0.06)
1.15 (0.04)
1.14 (0.04)
2x
0.76 (0.03)
2.28 (0.09)
2x
30 V
1.27 (0.05)
0.88 (0.03)
6.22 (0.24)
5.97 (0.23)
0.89 (0.03)
3x
0.64 (0.02)
4.57 (0.18)
10.42 (0.41)
9.40 (0.37)
2.38 (0.09)
2.19 (0.08)
1 - Anode
2 - Cathode
3 - Anode
4 - Cathode
12 Amp
D-Pak (TO-252AA)
Description/ Features
The 12CWQ03FN surface mount, center tap, Schottky rectifier
series has been designed for applications requiring low forward
drop and small foot prints on PC board. Typical applications are
in disk drives, switching power supplies, converters, freewheeling diodes, battery charging, and reverse battery
protection.
Popular D-PAK outline
Center tap configuration
Small foot print, surface mountable
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term reliability
1.14 (0.04)
0.89 (0.03)
0.58 (0.02)
0.46 (0.02)
6.45 (0.24)
5.68 (0.22)
0.51 (0.02)
MIN.
0.58 (0.02)
0.46 (0.02)
MINIMUM RECOMMENDED FOOTPRINT
5.97 (0.24)
6.48 (0.26)
2x
2.54 (0.10)
1.65 (0.06)
2x
10.67 (0.42)
2.28 (0.09)
2x
Conform to JEDEC outline D-Pak (Similar to TO-252AA)
Dimensions in millimeters and (inches)
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12CWQ03FN
Bulletin PD-20558 rev. E 01/03
Voltage Ratings
Part number 12CWQ03FN
VRMax. DC Reverse Voltage (V)
V
Max. Working Peak Reverse Voltage (V)
RWM
30
Absolute Maximum Ratings
Parameters 12CWQ... Units Conditions
I
Max. Average Forward (Per Leg) 6 A 50% duty cycle @ TC = 135°C, rectangular wave form
F(AV)
Current * See Fig. 5 (Per Device) 12
I
Max. Peak One Cycle Non-Repetitive 320 5µs Sine or 3µs Rect. pulse
FSM
Surge Current (Per Leg) * See Fig. 7 130 10ms Sine or 6ms Rect. pulse
EASNon-Rep. Avalanche Energy (Per Leg) 10 mJ T
A
= 25 °C, I
J
= 2.0 Amps, L = 5 mH
AS
IARRepetitive Avalanche Current 2.0 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Following any rated
load condition and with
rated V
RRM
applied
Electrical Specifications
Parameters 12CWQ... Units Conditions
VFMMax. Forward Voltage Drop 0.47 V @ 6A
(Per Leg) * See Fig. 1 (1) 0.55 V @ 12A
0.37 V @ 6A
0.49 V @ 12A
IRMMax. Reverse Leakage Current 3 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) 58 mA TJ = 125 °C
V
Threshold Voltage 0.196 V T
F(TO)
= TJ max.
J
rtForward Slope Resistance 21.66 mΩ
CTTyp. Junction Capacitance (Per Leg) 590 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 5.0 nH Measured lead to lead 5mm from package body
(1) Pulse Width < 300µs, Duty Cycle <2%
TJ = 25 °C
TJ = 125 °C
VR = rated V
R
Thermal-Mechanical Specifications
Parameters 12CWQ... Units Conditions
TJMax. Junction Temperature Range (*) - 55 to 150 °C
T
Max. Storage Temperature Range - 55 to 150 °C
stg
R
Max. Thermal Resistance (Per Leg) 3.0 °C/W DC operation * See Fig. 4
thJC
Junction to Case (Per Device) 1.5
wt Approximate Weight 0.3 (0.01) g (oz.)
Case Style D-Pak Similar to TO-252AA
(*) dPtot 1
< thermal runaway condition for a diode on its own heatsink
dTj Rth( j-a)
2
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12CWQ03FN
Bulletin PD-20558 rev. E 01/03
100
1000
T = 150°C
100
R
J
10
125°C
100°C
1
0.1
F
10
Reverse Current - I (mA)
0.01
0.001
0 5 10 15 20 25 30
Fig. 2 - Typical Values Of Reverse Current
75°C
50°C
25°C
Reverse Voltage - V (V)
R
Vs. Reverse Voltage (Per Leg)
1000
Instantaneous Forward Current - I (A)
T = 150°C
J
T = 125°C
J
T = 25°C
J
T
T = 25°C
J
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Fig. 1 - Max. Forward Voltage Drop Characteristics
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Junction Capacitance - C (pF)
100
0 5 10 15 20 25 30 35
Forward Voltage Drop - V (V)
FM
Reverse Voltage - V (V)
Fig. 3 - Typical Junction Capacitance
(Per Leg)
Vs. Reverse Voltage (Per Leg)
10
D = 0.75
D = 0.50
D = 0.33
1
thJC
Thermal Impedance Z (°C/W)
D = 0.25
D = 0.20
0.1
Single Pulse
(Thermal Resista nce)
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
0.01
0.00001 0.0001 0.001 0.01 0.1 1
t , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
1
Characteristics (Per Leg)
thJC
P
DM
t
1
t
2
1
J
DM
thJC
R
2
C
3
12CWQ03FN
Bulletin PD-20558 rev. E 01/03
150
145
140
135
Square wave (D = 0.50)
80% Rated V applied
130
R
125
Allowable Case Temperature - (°C)
see note (2)
120
0123456789
Average Forward Current - I (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
1000
FSM
DC
F(AV)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
4
3.5
2.5
D = 0.20
D = 0.25
D = 0.33
3
D = 0.50
D = 0.75
RMS Limit
2
1.5
1
Average Power Loss - (Watts)
0.5
0
0123456789
Average Forward Current - I (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
DC
F(AV)
(2) Formula used: TC = TJ - (Pd + Pd
Pd = Forward Power Loss = I
Pd
= Inverse Power Loss = VR1 x IR (1 - D); IR @ V
REV
4
Non-Repetitive Surge Current - I (A)
100
10 100 1000 10000
Square Wave Pulse Duration - t (microsec)
p
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
) x R
thJC
;
F(AV)
/ D) (see Fig. 6);
= 80% rated V
R1
R
F(AV)
REV
x VFM @ (I
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Marking Information
EXAMPLE: THIS IS AN 12CWQ03FN
Tape & Reel Information
TR
FEED DIRECTION
4.1 (0.16)
3.9 (0.15)
2.1 (0.83)
1.9 (0.07)
12.1 (0.48)
11.9 (0.47)
INTERNATIONAL
RECTIFIER LOGO
ASSEMBLY
LOT CODE
1.85 (0.07)
1.65 (0.06)
1.85 (0.07)
1.65 (0.06)
DIA.
2.6 (0.10)
1.5 (0.06)
7.6 (0.30)
7.4 (0.29)
DIA.
4 (K)
12CWQ03FN
712A
5K3A
2 (K)
1 (A) 3 (A)
0.35 (0.01)
0.25 (0.01)
7.0 (0.28)
6.8 (0.26)
2.75 (0.11)
2.55 (0.10)
12CWQ03FN
Bulletin PD-20558 rev. E 01/03
PART NUMBER
DATE CODE (YWWA)
Y = YEAR
WW = WEEK
A = LINE
16.3 (0.64)
15.7 (0.62)
375 (14.17)
DIA. MAX.
TRR
FEED DIRECTION
TRL
FEED DIRECTION
13 (0.52) DIA.
4.1 (0.16)
3.9 (0.15)
2.1 (0.83)
1.9 (0.07)
8.1 (0.32)
7.9 (0.31)
4.1 (0.16)
3.9 (0.15)
2.1 (0.83)
1.9 (0.07)
8.1 (0.32)
7.9 (0.31)
1.85 (0.07)
1.65 (0.06)
1.85 (0.07)
1.65 (0.06)
7.6 (0.30)
7.4 (0.29)
2.6 (0.10)
1.5 (0.06)
1.85 (0.07)
1.65 (0.06)
1.85 (0.07)
1.65 (0.06)
7.6 (0.30)
7.4 (0.29)
2.6 (0.10)
1.5 (0.06)
22.4 (0.88)
50 (1.97) DIA.
DIA.
DIA.
0.35 (0.01)
0.25 (0.01)
10.6 (0.42)
10.4 (0.41)
DIA.
DIA.
2.75 (0.11)
2.55 (0.10)
0.35 (0.01)
0.25 (0.01)
10.6 (0.42)
10.4 (0.41)
2.75 (0.11)
2.55 (0.10)
TO-252AA Tape & Reel
When ordering, indicate the part
number, part orientation, and the
quantity. Quantities are in multiples
of 2,000 pieces per reel for TR and
multiples of 3,000 pieces per reel
for both TRL and TRR.
16.3 (0.64)
15.7 (0.62)
16.3 (0.64)
15.7 (0.62)
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5
12CWQ03FN
Bulletin PD-20558 rev. E 01/03
This product has been designed and qualified for Industrial Level.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
6
Data and specifications subject to change without notice.
Qualification Standards can be found on IR's Web site.
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 01/03
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