UNISONIC TECHNOLOGIES CO.

, LTD
20N50 Power MOSFET

20A, 500V N-CHANNEL

POWER MOSFET

 DESCRIPTION
The UTC 20N50 is an N-channel MOSFET, it uses UTC’s
advanced technology to provide the customers with a minimum
on-state resistance, high switching speed and low leakage current,
etc.
The UTC 20N50 is suitable for switching regulator application,
etc.

 FEATURES
* RDS(on) < 0.27Ω @ VGS=10V, ID=10A
* High switching speed
* Low leakage current

 SYMBOL
2.Drain

1.Gate

3.Source

 ORDERING INFORMATION
Ordering Number Pin Assignment
Package Packing
Lead Free Halogen Free 1 2 3
20N50L-T3P-T 20N50G-T3P-T TO-3P G D S Tube
20N50L-T47-T 20N50G-T47-T TO-247 G D S Tube
Note: Pin Assignment: G: Gate D: Drain S: Source

 MARKING

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 ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified)

PARAMETER SYMBOL RATINGS UNIT
Drain-Source Voltage VDSS 500 V
Gate-Source Voltage VGSS ±30 V
Continuous ID 20 A
Drain Current (Note 2)
Pulsed IDM 80 A
Avalanche Current IAR 20 A
Single Pulsed (Note 3) EAS 960 mJ
Avalanche Energy
Repetitive (Note 4) EAR 15 mJ
TO-247 367 W
Power Dissipation (TC=25°C) PD
TO-3P 416 W
Channel Temperature TCH 150 °C
Storage Temperature Range TSTG -55 ~ +150 °C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Ensure that the channel temperature does not exceed 150°C.
3. VDD=90V, Tch=25°C (initial), L=4.08mH, RG=25Ω, IAR=20A.
4. Repetitive rating: pulse width limited by maximum channel temperature This transistor is an
electrostatic-sensitive device. Handle with care.
 THERMAL DATA
PARAMETER SYMBOL RATINGS UNIT
TO-247 40 °С/W
Junction to Ambient θJA
TO-3P 30 °С/W
TO-247 0.34 °С/W
Junction to Case θjC
TO-3P 0.3 °С/W

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 ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
OFF CHARACTERISTICS
Drain-Source Breakdown Voltage BVDSS ID=10mA, VGS=0V 500 V
Drain-Source Leakage Current IDSS VDS=500V, VGS=0V 100 µA
Forward VGS=+30V, VDS=0V +10 µA
Gate-Source Leakage Current IGSS
Reverse VGS=-30V, VDS=0V -10 µA
Gate-Source Breakdown Voltage V(BR)GSS IG=±10µA, VDS=0V ±30 V
ON CHARACTERISTICS
Gate Threshold Voltage VGS(TH) VDS=10V, ID=1mA 2.0 4.0 V
Static Drain-Source On-State Resistance RDS(ON) VGS=10V, ID=10A 0.21 0.27 Ω
DYNAMIC PARAMETERS
Input Capacitance CISS 3400 pF
Output Capacitance COSS VGS=0V, VDS=25V, f=1.0MHz 320 pF
Reverse Transfer Capacitance CRSS 25 pF
SWITCHING PARAMETERS
Total Gate Charge QG 70 nC
Gate to Source Charge QGS VGS=10V, VDD≈400V, ID=20A 45 nC
Gate to Drain Charge QGD 25 nC
Turn-ON Delay Time tD(ON) 130 ns

Rise Time tR 70 ns

Turn-OFF Delay Time tD(OFF) 280 ns

Fall-Time tF 70 ns
SOURCE- DRAIN DIODE RATINGS AND CHARACTERISTICS
Maximum Body-Diode Continuous Current
IS 20 A
(Note)
Maximum Body-Diode Pulsed Current
ISM 80 A
(Note)
Drain-Source Diode Forward Voltage VSD IS=20A, VGS=0V 1.7 V
Body Diode Reverse Recovery Time tRR 1300 ns
IS=20A, VGS=0V, dIDR/dt=100A/µs
Body Diode Reverse Recovery Charge QRR 20 µC
Note: Ensure that the channel temperature does not exceed 150°C.

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 TYPICAL CHARACTERISTICS

Breakdown Voltage Variation vs. Temperature On-Resistance Junction Temperature

1.2 3.0
Drain-Source Breakdown Voltage,

2.5

Drain-Source On-Resistance,
1.1

RDS(ON) (Normalized) (Ω)

BVDSS (Normalized) (V)

2.0

1.0 1.5

1.0
0.9 Note: Note:
1. VGS=0V 0.5 1. VGS=10V
2. ID=10mA 2. ID=10A
0.8 0.0
-50 -50 0 50 100 150 200
-100 0 50 100 150 200 -100
Junction Temperature, TJ (°С) Junction Temperature, TJ (°С)
Reverse Drain Current, IDR (A)
Drain-Source On-Resistance,
RDS(ON) (Ω)

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 TYPICAL CHARACTERISTICS (Cont.)

Transient Thermal Response Curve

100

Duty=0.5

0.2 NOTES:
-1 1.θJC(t)=0.8333°C/W Max
10 0.1 2.Duty = t1/t2
3.TJ-TC = PD-θJC(t)

0.05

0.02
PD
0.01
t1
10-2 Single pulse
t2

10-5 10-4 10-3 10-2 10-1 100 101

Pulse Width, t1 (sec)

UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.

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