
Power MOSFET
IRF840, SiHF840
Vishay Siliconix
PRODUCT SUMMARY
VDS (V) 500
R
(Ω)V
DS(on)
Q
(Max.) (nC) 63
g
Q
(nC) 9.3
gs
Q
(nC) 32
gd
Configuration Single
TO-220
= 10 V 0.85
GS
D
FEATURES
• Dynamic dV/dt Rating
• Repetitive Avalanche Rated
• Fast Switching
• Ease of Paralleling
• Simple Drive Requirements
• Lead (Pb)-free Available
DESCRIPTION
Third generation Power MOSFETs from Vishay provide the
designer with the best combination of fast switching,
G
ruggedized device design, low on-resistance and
cost-effectiveness.
The TO-220 package is universally preferred for all
S
D
G
N-Channel MOSFET
S
commercial-industrial applications at power dissipation
levels to approximately 50 W. The low thermal resistance
and low package cost of the TO-220 contribute to its wide
acceptance throughout the industry.
ORDERING INFORMATION
Package TO-220
Lead (Pb)-free
SnPb
IRF840PbF
SiHF840-E3
IRF840
SiHF840
Available
RoHS*
COMPLIANT
ABSOLUTE MAXIMUM RATINGS TC = 25 °C, unless otherwise noted
PARAMETER SYMBOL LIMIT UNIT
Drain-Source Voltage V
Gate-Source Voltage V
= 25 °C
T
Continuous Drain Current V
Pulsed Drain Current
a
at 10 V
GS
C
= 100 °C 5.1
C
DS
± 20 V
GS
I
D
IDM 32
Linear Derating Factor 1.0 W/°C
Single Pulse Avalanche Energy
Repetitive Avalanche Current
Repetitive Avalanche Energy
Maximum Power Dissipation T
Peak Diode Recovery dV/dt
b
a
a
= 25 °C P
c
C
Operating Junction and Storage Temperature Range T
E
AS
I
AR
E
AR
D
dV/dt 3.5 V/ns
, T
J
stg
Soldering Recommendations (Peak Temperature) for 10 s 300
Mounting Torque 6-32 or M3 screw
Notes
a. Repetitive rating; pulse width limited by maximum junction temperature (see fig. 11).
b. V
= 50 V, starting TJ = 25 °C, L = 14 mH, RG = 25 Ω, IAS = 8.0 A (see fig. 12).
DD
c. I
≤ 8.0 A, dI/dt ≤ 100 A/µs, VDD ≤ VDS, TJ ≤ 150 °C.
SD
d. 1.6 mm from case.
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 91070 www.vishay.com
S-81290-Rev. B, 16-Jun-08 1
500 V
8.0
510 mJ
8.0 A
13 mJ
125 W
- 55 to + 150
d
10 lbf · in
1.1 N · m
AT
°C

IRF840, SiHF840
Vishay Siliconix
THERMAL RESISTANCE RATINGS
PARAMETER SYMBOL TYP. MAX. UNIT
Maximum Junction-to-Ambient R
Maximum Junction-to-Case (Drain) R
thJA
thCS
thJC
SPECIFICATIONS TJ = 25 °C, unless otherwise noted
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Static
Drain-Source Breakdown Voltage V
Temperature Coefficient ΔVDS/TJ Reference to 25 °C, ID = 1 mA - 0.78 -
V
DS
Gate-Source Threshold Voltage V
Gate-Source Leakage I
Zero Gate Voltage Drain Current I
Drain-Source On-State Resistance R
Forward Transconductance g
Dynamic
Input Capacitance C
Reverse Transfer Capacitance C
Total Gate Charge Q
Gate-Drain Charge Q
Turn-On Delay Time t
Rise Time t
Turn-Off Delay Time t
Fall Time t
Internal Drain Inductance L
Internal Source Inductance L
Drain-Source Body Diode Characteristics
Continuous Source-Drain Diode Current I
Pulsed Diode Forward Current
a
Body Diode Voltage V
Body Diode Reverse Recovery Time t
Body Diode Reverse Recovery Charge Q
Forward Turn-On Time t
Notes
a. Repetitive rating; pulse width limited by maximum junction temperature (see fig. 11).
b. Pulse width ≤ 300 µs; duty cycle ≤ 2 %.
DS
GS(th)
V
GSS
DSS
V
DS(on)
fs
iss
- 310 -
oss
- 120 -
rss
g
--9.3
gs
--32
gd
d(on)
r
-49-
d(off)
-20-
f
D
V
V
R
Between lead,
6 mm (0.25") from
package and center of
S
S
I
SM
SD
rr
rr
on
die contact
MOSFET symbol
showing the
integral reverse
p - n junction diode
TJ = 25 °C, IF = 8 A, dI/dt = 100 A/µs
-62
0.50 -
°C/WCase-to-Sink, Flat, Greased Surface R
-1.0
VGS = 0 V, ID = 250 µA 500 - -
VDS = VGS, ID = 250 µA 2.0 -
= ± 20 V - -
GS
VDS = 500 V, VGS = 0 V - -
= 400 V, VGS = 0 V, TJ = 125 °C - -
DS
= 10 V ID = 4.8 A
GS
VDS = 50 V, ID = 4.8 A
VGS = 0 V,
= 25 V,
V
DS
b
b
--
4.9 - -
- 1300 -
4.0 V
± 100 nA
25
250
0.85 Ω
f = 1.0 MHz, see fig. 5
--63
= 8 A, VDS = 400 V,
I
= 10 V
GS
D
see fig. 6 and 13
b
-14-
= 250 V, ID = 8 A
V
DD
= 9.1 Ω, RD = 31 Ω, see fig. 10
G
G
G
TJ = 25 °C, IS = 8 A, VGS = 0 V
b
D
S
D
S
b
-23-
-4.5-
-7.5-
--8.0
--32
--
-
b
460 970 ns
-
4.2 8.9 µC
2.0 V
Intrinsic turn-on time is negligible (turn-on is dominated by LS and LD)
V
V/°C
µA
S
pFOutput Capacitance C
nC Gate-Source Charge Q
ns
nH
A
www.vishay.com Document Number: 91070
2 S-81290-Rev. B, 16-Jun-08

TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
V
GS
15 V
10 V
8.0 V
7.0 V
6.0 V
5.5 V
5.0 V
4.5 V
20 µs Pulse Width
T
= 25 °C
C
1
10
VDS, Drain-to-Source Voltage (V)
4.5 V
, Drain Current (A)
I
91070_03
, Drain Current (A)
D
I
91070_01
To p
1
10
Bottom
0
10
0
10
IRF840, SiHF840
Vishay Siliconix
150 °C
1
10
25 °C
0
10
D
20 µs Pulse Width
= 50 V
V
DS
4
5678 910
V
Gate-to-Source Voltage (V)
,
GS
Fig. 1 - Typical Output Characteristics, TC = 25 °C
V
To p
1
10
GS
15 V
10 V
8.0 V
7.0 V
6.0 V
5.5 V
5.0 V
Bottom
4.5 V
, Drain Current (A)
D
I
0
91070_02
10
0
10
V
Drain-to-Source Voltage (V)
,
DS
20 µs Pulse Width
T
= 150 °C
C
1
10
Fig. 2 - Typical Output Characteristics, T
4.5 V
= 150 °C
C
Fig. 3 - Typical Transfer Characteristics
3.0
ID = 8.0 A
= 10 V
V
GS
2.5
2.0
1.5
(Normalized)
1.0
0.5
, Drain-to-Source On Resistance
DS(on)
0.0
R
- 60 - 40 - 20 0 20 40 60 80 100 120 140 160
T
Junction Temperature (°C)
91070_04
,
J
Fig. 4 - Normalized On-Resistance vs. Temperature
Document Number: 91070 www.vishay.com
S-81290-Rev. B, 16-Jun-08 3