This is one of the MOSFET types.

Part number : K15A60D , TK15A60D

Functions : 600V, Silicon N Channel MOSFET, Transistor

Package: TO-220 type

Manufacturer: Toshiba Semiconductor

Image :

The texts in the PDF file :

• Low drain-source ON-resistance: RDS (ON) = 0.31 Ω (typ.)
• High forward transfer admittance: |Yfs| = 8.5 S (typ.)
• Low leakage current: IDSS = 10 μA (max) (VDS = 600 V)
• Enhancement mode: Vth = 2.0 to 4.0 V (VDS = 10 V, ID = 1 mA)

[ … ]

Pinout

Absolute Maximum Ratings (Ta = 25°C)

1. Drain to source voltage : VDSS = 600 V
2. Gate to source voltage : VGSS = ± 30 V
3. Drain current : ID = 15 A
4. Drain power dissipation : PD = 50 W
5. Single pulse avalanche energy : Eas = 527 mJ
6. Avalanche current : Iar = 15 A
7. Repetitive avalanche energy : Ear = 5 mJ
8. Channel temperature : Tch = 150 °C
9. Storage temperature : Tstg = -55 to +150 °C

Applications

1. Switching Regulator

K15A60D PDF File

This is a kind of MOSFET. W14NC50 Datasheet PDF learn more.

Part number : W14NC50, STW14NC50

Functions : N-Channel, 500V, 14A, MOSFET

Package information : TO-247 Type

Manufacturer: STMicroelectronics

Image :

The texts in the PDF file :

The PowerMESHI is the evolution of the first generation of MESH OVERLAY. The layout refinements introduced greatly improve the Ron*area figure of merit while keeping the device at the leading edge for what concerns switching speed, gate charge and ruggedness. [ … ]

Features

1. TYPICAL RDS(on) = 0.31Ω
2. EXTREMELY HIGH dv/dt CAPABILITY
3. 100% AVALANCHE TESTED
4. NEW HIGH VOLTAGE BENCHMARK
5. GATE CHARGE MINIMIZED

Pinout ( Pin arrangement )

Absolute Maximum Ratings (Tc = 25°C)

1. Drain-source Voltage (VGS = 0) : VDS = 500 V
2. Drain-gate Voltage (RGS = 20 kΩ) : VDGR = 500 V
3. Gate- source Voltage : VGS±30 V
4. Drain Current (continuos) : ID = 14 A
5. Total Dissipation : Ptot = 190 W
6. Storage Temperature : Tstg = – 65 to 150 °C
7. Max. Operating Junction Temperature : Tj = 150 °C

Applications

1. SWITCH MODE POWER SUPPLIES (SMPS)
2. HIGH CURRENT, HIGH SPEED SWITCHING
3.  DC-AC CONVERTERS FOR WELDING  EQUIPMENT AND UNINTERRUPTIBLE POWER SUPPLIES AND MOTOR DRIVE

W14NC50 PDF File