This post explains for the MOSFET.
The Part Number is F13NK50Z, STF13NK50Z.
The function of this semiconductor is 500V, 11A, Power MOSFET.
The package is TO-220, TO-220FP, TO-247 Type.
Manufacturer: STMicroelectronics
Preview images :
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Description
The SuperMESH series is obtained through an extreme optimization of ST’s well established
strip-based PowerMESH™ layout. In addition to pushing on-resistance significantly down, special
care is taken to ensure a very good dv/dt capability for the most demanding applications.
Such series complements ST full range of high voltage MOSFETs. […]
Features
1. Extremely high dv/dt capability
2. 100% avalanche tested
3. Gate charge minimized
4. Very low intrinsic capacitances
5. Very good manufacturing repeatability
Applications:
1. Switching application