BUZ71A

BUZ71AFI
N - CHANNEL ENHANCEMENT MODE
POWER MOS TRANSISTORS

TYPE V DSS R DS( on) ID

BUZ71A 50 V < 0.12 Ω 16 A
BUZ71AFI 50 V < 0.12 Ω 11 A

■ TYPICAL RDS(on) = 0.1 Ω

■ AVALANCHE RUGGED TECHNOLOGY
■ 100% AVALANCHE TESTED
■ REPETITIVE AVALANCHE DATA AT 100oC
3 3
■ LOW GATE CHARGE 2 2
1 1
■ HIGH CURRENT CAPABILITY
■ 175oC OPERATING TEMPERATURE
TO-220 ISOWATT220
APPLICATIONS
■ HIGH CURRENT, HIGH SPEED SWITCHING
■ SOLENOID AND RELAY DRIVERS
■ REGULATORS
■ DC-DC & DC-AC CONVERTERS
■ MOTOR CONTROL, AUDIO AMPLIFIERS
■ AUTOMOTIVE ENVIRONMENT (INJECTION, INTERNAL SCHEMATIC DIAGRAM
ABS, AIR-BAG, LAMPDRIVERS, Etc.)

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

BUZ71A BUZ71AFI
VD S Drain-source Voltage (V GS = 0) 50 V
V DG R Drain- gate Voltage (R GS = 20 kΩ) 50 V
V GS Gate-source Voltage ± 20 V
ID Drain Current (continuous) at T c = 25 oC 16 11 A
I DM Drain Current (pulsed) 64 64 A
P tot Total Dissipation at Tc = 25 o C 70 35 W
V ISO Insulation Withstand Voltage (DC)  2000 V
o
T stg Storage Temperature -65 to 175 C
o
Tj Max. Operating Junction Temperature 175 C
DIN Humidity Category (DIN 40040) E
IEC Climatic Category (DIN IEC 68-1) 55/150/56

May 1993 1/8

BUZ71A/BUZ71AFI

THERMAL DATA
TO-220 ISOWATT220
o
R thj-cas e Thermal Resistance Junction-case Max 2.14 4.29 C/W
o
Rthj- amb Thermal Resistance Junction-ambient Max 62.5 C/W

AVALANCHE CHARACTERISTICS
Symbol Parameter Value Unit
IA R Avalanche Current, Repetitive or Not-Repetitive 16 A
(pulse width limited by T j max, δ < 1%)
E AS Single Pulse Avalanche Energy 50 mJ
(starting T j = 25 o C, ID = I AR, VD D = 25 V)
E AR Repetitive Avalanche Energy 10 mJ
(pulse width limited by T j max, δ < 1%)
IA R Avalanche Current, Repetitive or Not-Repetitive 11 A
(T c = 100 o C, pulse width limited by T j max, δ < 1%)

ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)

OFF
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V( BR)DSS Drain-source I D = 250 µA VG S = 0 50 V
Breakdown Voltage
I DS S Zero Gate Voltage V DS = Max Rating 250 µA
Drain Current (V GS = 0) V DS = Max Rating Tj = 125 oC 1000 µA
IG SS Gate-body Leakage V GS = ± 20 V ± 100 nA
Current (V D S = 0)

ON (∗)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V G S(th) Gate Threshold Voltage V DS = V GS ID = 1 mA 2.1 3 4 V
R DS( on) Static Drain-source On V GS = 10 V ID = 8 A 0.1 0.12 Ω
Resistance

DYNAMIC
Symbol Parameter Test Conditions Min. Typ. Max. Unit
gfs (∗) Forward V DS = 25 V ID = 8 A 3 6.5 S
Transconductance
C iss Input Capacitance V DS = 25 V f = 1 MHz VG S = 0 330 450 pF
C oss Output Capacitance 150 250 pF
C rss Reverse Transfer 40 60 pF
Capacitance

SWITCHING
Symbol Parameter Test Conditions Min. Typ. Max. Unit
t d(on) Turn-on Time V DD = 25 V ID = 8 A 50 70 ns
tr Rise Time R GS = 50 Ω V GS = 10 V 100 140 ns
t d(off ) Turn-off Delay Time 40 60 ns
tf Fall Time 45 65 ns

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 BUZ71A/BUZ71AFI

ELECTRICAL CHARACTERISTICS (continued)

SOURCE DRAIN DIODE
Symbol Parameter Test Conditions Min. Typ. Max. Unit
IS D Source-drain Current 16 A
I SD M Source-drain Current 64 A
(pulsed)
V S D (∗) Forward On Voltage I SD = 32 A VG S = 0 2.2 V
t rr Reverse Recovery I SD = 16 A di/dt = 100 A/µs 70 ns
Time V DD = 25 V Tj = 150 o C
Q rr Reverse Recovery 0.14 µC
Charge
(∗) Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %

Safe Operating Area For TO-220 Safe Operating Area For ISOWATT220

Thermal Impedance For TO-220 Thermal Impedance For ISOWATT220

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BUZ71A/BUZ71AFI

Derating Curve For TO-220 Derating Curve For ISOWATT220

Output Characteristics Transfer Characteristics

Transconductance Static Drain-Source On Resistance

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 BUZ71A/BUZ71AFI

Maximum Drain Current vs Temperature Gate Charge vs Gate-Source Voltage

Capacitance Variation Normalized Gate Threshold Voltage vs

Temperature

Normalized On Resistance vs Temperature Source-Drain Diode Forward Characteristics

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BUZ71A/BUZ71AFI

TO-220 MECHANICAL DATA

mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409
L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.2 6.6 0.244 0.260
L9 3.5 3.93 0.137 0.154
DIA. 3.75 3.85 0.147 0.151

E
A

D
C

D1

L2
F1

G1

H2
G

Dia.
F
F2

L5
L9
L7

L6 L4
P011C

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 BUZ71A/BUZ71AFI

ISOWATT220 MECHANICAL DATA

mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.4 4.6 0.173 0.181
B 2.5 2.7 0.098 0.106
D 2.5 2.75 0.098 0.108
E 0.4 0.7 0.015 0.027
F 0.75 1 0.030 0.039
F1 1.15 1.7 0.045 0.067
F2 1.15 1.7 0.045 0.067
G 4.95 5.2 0.195 0.204
G1 2.4 2.7 0.094 0.106
H 10 10.4 0.393 0.409
L2 16 0.630
L3 28.6 30.6 1.126 1.204
L4 9.8 10.6 0.385 0.417
L6 15.9 16.4 0.626 0.645
L7 9 9.3 0.354 0.366
Ø 3 3.2 0.118 0.126

E
A

D
B

L3

L6

L7
F1

Ø
G1

G
H

F2

1 2 3

L2 L4
P011G

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BUZ71A/BUZ71AFI

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.

 1994 SGS-THOMSON Microelectronics - All Rights Reserved

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