This part is a kind of semiconductor called IXFN48N50.

Function of this product has HiPerFET Power MOSFETs.

Manufacturers : IXYS Corporation

Image and pinout :

Some of the text within the PDF file :

TM HiPerFET Power MOSFETs VDSS IXFK / IXFN 44 N50 IXFK / IXFN 48 N50 ID25 RDS(on) N-Channel Enhancement Mode Avalanche Rated, High dv/dt, Low trr 500 V 44 A 0.12 Ω 500 V 48 A 0.10 Ω trr ≤ 250 ns Symbol VDSS VDGR VGS VGSM ID25 IDM IAR EAR dv/dt PD TJ TJM Tstg TL VISOL Md Weight Symbol Test Conditions T J = 25°C to 150°C T J = 25°C to 150°C; RGS = 1 MΩ Continuous Transient TC = 25°C TC = 25°C, pulse width limited by TJM TC = 25°C TC = 25°C IS ≤ IDM, di/dt ≤ 100 A/µs, VDD ≤ VDSS, TJ ≤ 150°C, RG = 2 Ω TC = 25°C 44N50 48N50 44N50 48N50 Maximum Ratings IXFK IXFN 500 500 ±20 ±30 44 48 176 192 24 30 5 500 500 500 ±20 ±30 44 48 176 192 24 30 5 520 150 -55 ... +150 V V TO-264 AA (IXFK) G V V A A A A A mJ V/ns S G D (TAB) S miniBLOC, [ ... ]

IXFN48N50 PDF Datasheet Download