SCHOTTKY RECTIFIER 2 Amp
21DQ06
1
Major Ratings and Characteristics
IF(AV) Rectangular 2 A
waveform
VRRM 60 V
VF@ 2 Apk, TJ = 125°C 0.55 V
TJrange - 40 to 150 °C
Characteristics 21DQ06 Units The 21DQ06 axial leaded Schottky rectifier has been opti-
mized for very low forward voltage drop, with moderate
leakage. Typical applications are in switching power sup-
plies, 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
Description/Features
Dimensions in millimeters and inches
Conform to JEDEC Outline DO-204AL (DO-41)
CASE STYLE AND DIMENSIONS
Bulletin PD-20714 rev. C 03/03
www.irf.com
DO-41
21DQ06
Bulletin PD-20714 rev. C 03/03
2www.irf.com
Part number 21DQ06
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
60
Thermal-Mechanical Specifications
VFM Max. Forward Voltage Drop 0.53 0.60 V @ 2A
(1) 0.67 0.75 V @ 4A
0.49 0.55 V @ 2A
0.61 0.67 V @ 4A
IRM Max. Reverse Leakage Current 0.02 0.50 mA TJ = 25 °C
(1) 7.0 10 mA TJ = 125 °C
CTTypical Junction Capacitance 120 pF VR = 5VDC(test signal range100Khz 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
Electrical Specifications
(1) Pulse Width < 300µs, Duty Cycle <2%
Typ. Max.
21DQ06
Parameters Units Conditions
IF(AV) Max. Average Forward Current 2 A 50% duty cycle @ TC = 106°C, rectangular wave form
* See Fig. 4
IFSM Max. Peak One Cycle Non-Repetitive 340 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 6 60 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 4.0 mJ TJ = 25 °C, IAS = 1 Amps, L = 8 mH
IAR Repetitive Avalanche Current 0.5 A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Absolute Maximum Ratings
Following any rated
load condition and with
rated VRRM applied
A
Parameters 21DQ06 Units Conditions
TJMax. Junction Temperature Range -40 to 150 °C
Tstg Max. Storage Temperature Range -40 to 150 °C
RthJA Max. Thermal Resistance Junction 100 °C/W DC operation
to Ambient Without cooling fin
RthJL Typical Thermal Resistance Junction 25 °C/W DC operation (See Fig. 4)
to Lead
wt Approximate Weight 0.33(0.012) g (oz.)
Case Style DO-204AL(DO-41)
Parameters 21DQ06 Units Conditions
< thermal runaway condition for a diode on its own heatsink
(*) dPtot 1
dTj Rth( j-a)
21DQ06
Bulletin PD-20714 rev. C 03/03
3
www.irf.com
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Maximum Forward Voltage Drop Characteristics
0.0001
0.001
0.01
0.1
1
10
100
0204060
R
R
125°C
100°C
75°C
50°C
25°C
Reverse Current - I (mA)
Reverse Voltage - V (V)
T = 150°C
J
0.1
1
10
00.30.60.91.2
F
FM
T = 150°C
T = 125°C
T=25°C
J
J
J
Forward Voltage Drop - V (V)
Instantaneous Forward Current - I (A)
10
100
1000
0204060
R
T
Junction Capacitance - C (pF)
Reverse Voltage - V (V)
T=25°C
J
21DQ06
Bulletin PD-20714 rev. C 03/03
4www.irf.com
Fig. 4 - Maximum Allowable Lead Temperature
Vs. Average Forward Current Fig. 5 - Forward Power Loss Characteristics
Fig. 6 - Maximum Non-Repetitive Surge Current
(2) Formula used: TL = TJ - (Pd + PdREV) x RthJL ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 5);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR
0
0.4
0.8
1.2
1.6
2
0123
DC
Average Power Loss - (Watts)
F(AV)
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Average Forward Current - I (A)
10
100
1000
10 100 1000 10000
FSM
Non-Repetitive Surge Current - I (A)
p
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
0
30
60
90
120
150
0123
DC
F(AV)
seenote(2)
Average Forward Current - I (A)
Square wave (D = 0.50)
80% Rated V applied
R
Allowable Lead Temperature - (°C)
=1/8inch
21DQ06
Bulletin PD-20714 rev. C 03/03
5
www.irf.com
Ordering Information Table
Device Code
15
24
3
1- 21 = 2.1A (Axial and small packages - Current is x10)
2- D = DO-41 package
3- Q = Schottky Q.. Series
4- 06 = Voltage Rating : 60V
5- TR= Tape & Reel package ( 5000 pcs)
TB = Tape & Box package (Ammunition -3000 pcs)
- = Box package (1000 pcs)
21 D Q 06 TR
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. 03/03
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.
