Ungakhetha kanjani iphakheji elifanele le-MOSFET?

OkuvamileI-MOSFETamaphakheji yilawa:

① iphakheji ye-plug-in: TO-3P, TO-247, TO-220, TO-220F, TO-251, TO-92;

② ukukhweza kwendawo: TO-263, TO-252, SOP-8, SOT-23, DFN5 * 6, DFN3 * 3;

Amafomu ephakheji ahlukene, i-MOSFET ehambisana nomkhawulo wamanje, ukuchithwa kwe-voltage nokushisa kuzohluka, kuchazwe kafushane ngezansi.

1,TO-3P/247

I-TO247 ingenye yamaphakheji e-small-form-factor avame ukusetshenziswa kakhulu, uhlobo lwephakheji ye-surface Mount, 247 inombolo ye-serial yezinga lephakheji.

Iphakheji ye-TO-247 kanye nephakheji ye-TO-3P i-3-pin okukhiphayo, ngaphakathi kwe-chip engenalutho (okungukuthi, umdwebo wesifunda) ingafana ncamashi, ngakho-ke umsebenzi kanye nokusebenza kuyafana, ikakhulukazi, ukuchithwa kokushisa nokuzinza kuthinteke kancane. !

I-TO247 ngokuvamile ayiyona i-insulated, ishubhu le-TO-247 ngokuvamile lisetshenziswa ngamandla amakhulu, lisetshenziswa njengeshubhu elishintshayo, i-voltage yayo ye-standard kanye ne-current izoba nkulu kancane kancane ye-high-voltage, i-MOSFET yamanje ephezulu evame ukusetshenziswa. ngesimo samaphakheji, umkhiqizo une-voltage ephezulu yokumelana, ukumelana okuphezulu kokuwohloka, njll., ilungele i-medium-voltage kanye nephezulu yamanje (yamanje engu-10A noma ngaphezulu, imelana nevelu ye-voltage engu-100V noma ngaphansi) ku Ifaneleka ku-voltage ophakathi nendawo naphezulu (okwamanje ngaphezu kuka-10A, inani lokumelana ne-voltage elingaphansi kuka-100V) nangaphezulu kuka-120A, inani lokumelana ne-voltage elingaphezu kuka-200V.

2, TO-220/220F

Lezi zitayela ezimbili zephakheji zeI-MOSFETukubukeka kucishe kufane, kungasetshenziswa ngokushintshana, kodwa ngemuva kwe-TO-220 kunomshini wokushisa, umphumela wokushisa ukushisa ungcono kune-TO-220F, intengo ibiza kakhulu. Lawa maphakheji amabili afanele i-medium-voltage high-current 120A noma ngaphansi, high-voltage high-current 20A noma izinhlelo zokusebenza ezingaphansi.

3, TO-251

Le phakheji ihlose ukunciphisa izindleko kanye nokunciphisa usayizi womkhiqizo, ikakhulukazi esetshenziswa ku-voltage ephakathi nendawo ephezulu yamanje engu-60A noma ngaphansi, i-voltage ephezulu engu-7N noma indawo engaphansi.

4, TO-92

Iphakheji kuphela i-MOSFET ene-voltage ephansi (okwamanje ingaphansi kuka-10A, inani lamandla kagesi elingaphansi kuka-60V) kanye ne-high-voltage 1N60/65 ekusetshenzisweni, ikakhulukazi ukunciphisa izindleko.

5, TO-263

Iwuhlobo lwe-TO-220, oluklanyelwe kakhulu ukuthuthukisa ukusebenza kahle kokukhiqiza kanye nokunqanyulwa kokushisa, ukusekela amandla amanje aphezulu kakhulu kanye nogesi, ku-150A ngezansi, u-30V ngaphezu kwamandla kagesi aphakathi nendawo kanye ne-MOSFET yamanje ephezulu ivame kakhulu.

6, TO-252

Ingenye yamaphakheji ajwayelekile, afanele amandla kagesi aphezulu ngaphansi kwe-7N, i-medium voltage ngaphansi kwe-70A imvelo.

7, SOP-8

Iphakheji futhi yakhelwe ukunciphisa izindleko, ngokuvamile ngaphansi kuka-50A ku-voltage ephakathi, 60V noma kanjalo ku-low-voltage.Ama-MOSFETzivame kakhulu.

8, SOT-23

Ifanele i-A yamanje eminingana, i-60V kanye nemvelo ye-voltage elandelayo, ehlukaniswe izinhlobo ezimbili zevolumu enkulu nevolumu encane, umehluko omkhulu ukuthi inani lamanje lihlukile.