Dimensions in millimeters and inches
Conforms to JEDEC Outline DO - 204AR
CASE STYLE AND DIMENSIONS
Major Ratings and Characteristics
IF(AV) Rectangular 8 A
waveform
VRRM range 30 / 45 V
IFSM @ tp = 5 µs sine 2400 A
VF@
8 Apk, TJ
= 125°C 0.44 V
TJrange - 55 to 175 °C
Characteristics 80SQ... Units
Description/ Features
The 80SQ axial leaded Schottky rectifier series has been
optimized for low reverse leakage at high temperature. The
proprietary barrier technology allows for reliable operation up
to 175°C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
175° C TJ operation
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Lead-Free plating
SCHOTTKY RECTIFIER 8 Amp
80SQ... SERIES
Bulletin PD-2.047 rev. G 06/05
1
www.irf.com
80SQ... Series
Bulletin PD-2.047 rev. G 06/05
2www.irf.com
VFM Max. Forward Voltage Drop (1) 0.53 V @ 8A
* See Fig. 1 0.60 V @ 16A
0.44 V @ 8A
0.55 V @ 16A
IRM Max. Reverse Leakage Current (1) 2 mA TJ = 25 °C
* See Fig. 2 15 mA TJ = 125 °C
CTMax. Junction Capacitance 900 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C
LSTypical Series Inductance 10.0 nH Measured lead to lead 5mm from body
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Parameters 80SQ Units Conditions
Electrical Specifications
TJMax. Junction Temperature Range -55 to 175 °C
Tstg Max. Storage Temperature Range -55 to 175 °C
RthJL Max. Thermal Resistance Junction 8.0 °C/W DC operation * See Fig. 4
to Lead 1/8 inch lead length
RthJA Typical Thermal Resistance, 44 °C/W
Junction to Air
wt Approximate Weight 1.4(0.049) g (oz.)
Case Style DO - 204AR JEDEC
Thermal-Mechanical Specifications
Parameters 80SQ Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
IF(AV) Max. Average Forward Current 8 A 50% duty cycle @ TC = 119° C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 2400 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 7 380 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 10 m J TJ
= 25 °C, IAS
= 1.6 Amps, L = 7.8 mH
IAR Repetitive Avalanche Current 1.6 A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters 80SQ Units Conditions
Absolute Maximum Ratings
A
Part number 80SQ030 80SQ035 80SQ040 80SQ045
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 30 35 40 45
Voltage Ratings
Following any rated
load condition and
with rated VRRM applied
80SQ... Series
Bulletin PD-2.047 rev. G 06/05
3
www.irf.com
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance ZthJL Characteristics
100
1000
0 1020304050
T = 25°C
J
Reverse Voltage - V (V)
R
T
Junction Capacitance - C (pF)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
.1
1
10
100
0.1.2.3.4.5.6.7.8.911.1
FM
F
Instantaneous Forward Current - I (A)
T = 175°C
T = 125°C
T = 25°C
J
J
J
Forward Vol tage Drop - V (V)
.0001
.001
.01
.1
1
10
100
1000
0 5 10 15 20 25 30 35 40 4
5
R
R
T = 175°C
150°C
125°C
100°C
75°C
50°C
25°C
J
Reverse Voltage - V (V)
Reverse Current - I (mA)
.01
.1
1
10
.00001 .0001 .001 .01 .1 1 10 100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
t , Rect angular Pulse Duration (Seconds)
Thermal Impedance - Z (°C/W)
Single Pulse
(Thermal Resistance)
thJL
2
t
1
t
P
DM
Not es:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
JDM C
2
thJL
= 1/8 i nch
80SQ... Series
Bulletin PD-2.047 rev. G 06/05
4www.irf.com
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
0
1
2
3
4
5
6
024681012
DC
Average Power Loss - (Watts)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Li mit
Average Forward Current - I (A)
130
140
150
160
170
180
024681012
DC
Al l owable Case Temperature - (°C)
Average Forward Current - I (A)
F(AV)
80SQ
R (DC) = 8.0°C/W
thJL
= 1/8 inch
100
1000
10000
10 100 1000 10000
FSM
p
Non-Repetitive Surge Current - I (A)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
FREE- W HEEL
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 2 5 o h m
Vd = 25 Volt
+
80SQ... Series
Bulletin PD-2.047 rev. G 06/05
5
www.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. 06/05
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
Ordering Information Table
Device Code
1243
1- 80 = current x 10
2- S = DO-204AR
3- Q = Schottky Q Series
4- Voltage Rating
5- TR = Tape & Reel package (1500 pcs)
- = Box package (200 pcs)
80 S Q 045 TR
030 = 30V
035 = 35V
040 = 40V
045 = 45V
5
