При конструировании устройств на микроконтроллерах частенько приходится управлять нагрузкой постоянного тока привышающий допустимый для МК. Для этих целей используют  полевые транзисторы. Вот небольшой список некоторых мосфетов и их параметры:

Таблица напряжений и токов полевых транзисторов MosFET

K3080 (HITACHI) N-Channel MFET 20 mOhm 10V 15A
AP9919H (A-POWER) N-Channel MFET Enhancement 16 mOm 12V 33A
AP9916H (A-POWER) N-Channel MFET Enhancement 25 mOm 18V 35A
APM2030N (ANPEC) N-Channel MFET Enhancement 38 mOm 20V 6A
 APM2054N (ANPEC) N-Channel MFET Enhancement 45 mOm 20V 12A
APM2055N (ANPEC) N-Channel MFET Enhancement 75 mOm 20V 12A
AP9915H (A-POWER) N-Channel MFET Enhancement 50 mOm 20V 20A
FDD6530A (FAIRCHILD) N-Channel MFET PowerTrench 47 mOm 20V 21A
APM2014N (ANPEC) N-Channel MFET Enhancement 18 mOm 20V 30A
2SK3296 (NEK) N-Channel MFET Enhancement 12 mOm 20V 35A
IRLR3714IRF (IRF) N-Channel MFET SMPS 20 mOm 20V 35A
FDD6512A (FAIRCHILD) N-Channel MFET PowerTrench 31 mOm 20V 36A
P45N02LD (Intesil) N-Channel MFET MegaFET Logic 22 mOm 20V 45A
AP9918H (A-POWER) N-Channel MFET Enhancement 14 mOm 20V 45A
2SK3570 (NEK) N-Channel MFET Enhancement 12 mOm 20V 48A
 N0252 N-Channel MFET 20V
2SK3467 (NEK) N-Channel MFET Enhancement 6 mOm 20V 80A
SUD50N024-06P (VISHAY)N-Channel MFET TrenchFET 9.5 mOm 22V 80A
LD1010D (Lovoltech) N-Channel MFET PowerJfet 5 mOm 24V 50A
B60NH0 (STB60NH02L) N-Channel MFET STripFET 8,5 mOm 24V 60A
NTD80N02 (ON Semiconductor) N-Channel MFET DPAK 5 mOm 24V 80A
P3056LS (NIKO-SEM) N-Channel MFET Enhancement 50 mOm 25V 12A
P3055LD (NIKO-SEM) N-Channel MFET Enhancement 25V 12A
STU/D3055L (Samhop) N-Channel MFET Enhancement 95 mOm 25V 12A
APM2509N (ANPEC) N-Channel MFET Enhancement 13 mOm 20V 12A
10N03L (Infineon) N-Channel MFET OptiMOS2 Power 10,4 mOm 25V 30A
13N03LA (Infineon) N-Channel MFET OptiMOS2 Power 13 mOm 25V 30A
STU/D3525NLS (Samhop) N-Channel MFET Enhancement 25 mOm 25V 35A
NTD40N03R (ON Semiconductor) N-Channel MFET DPAK 12.6 mOm 25V 45A
 PHD45N03LT (Philips) N-Channel MFET TrenchMOS 20 mOm 25V 45A
2SK3918 (NEK) N-Channel MFET Enhancement 7.5 mOm 25V 48A
05N03LA (Infineon) N-Channel MFET OptiMOS2 Power 5.1 mOm 25V 50A
06N03LA (Infineon) N-Channel MFET OptiMOS2 Power 5.4 mOm 25V 50A
09N03LA (Infineon) N-Channel MFET OptiMOS2 Power 8.6 mOm 25V 50A
P48N02LD (NIKO-SEM) N-Channel MFET 14 mOm 25V 52A
PHP(B,D)55N03LT N-Channel MFET TrenchMOS 18 mOm 25V 55A
(Philips)
B100NH02L (ST) N-CHANNEL MFET STRIPFET III 5,2 mOm 24V 60A
NTD60N02RG (ON Semiconductor) N-Channel MFET DPAK 8.4 mOm 25V 62A
 PHD66NQ03LT (Philips) N-Channel MFET TrenchMOS 16 mOm 25V 66A
 PHD98N03LT (Philips) N-Channel MFET TrenchMOS 7.3 mOm 25V 66A
 PHD(B,D) 69N03LT N-Channel MFET TrenchMOS 14 mOm 25V 69A
PHP(B,D) 96NQ03LT N-Channel MFET TrenchMOS 18 mOm 25V 75A
(Philips) Enhancement
PHP(B,D) 78NQ03LT N-Channel MFET TrenchMOS 9 mOm 25V 75A
(Philips) Enhancement
 85L02H (AP85L02H) N-Channel MFET Enhancement 6 mOm 25V 85A
P50N03LS (NIKO-SEM) N-Channel MFET Logic Enhancment 12 mOm 27V 50A
APM3055LU (ANPEC) N-Channel MFET Enhancement 100 mOm 30V 12A
AP15N03H (A-POWER) N-Channel MFET Enhancement 80 mOm 30V 15A
 D17NF03L N-Channel MFET 30V 17A
 STB17NF03L (STB) N-Channel MFET STripFET 38 mOm 30V 17A
APM3054NU (ANPEC) N-Channel MFET Enhancement 75 mOm 30V 20A
 SDU/D20N03L (SamHop) N-Channel MFET 20.5 mOm 30V 20A
 76107D N-Channel MFET UltraFET Logic 52 mOm 30V 20A
 76129D N-Channel MFET UltraFET Logic 16 mOm 30V 20A
 FDD6630A (FAIRCHILD) N-Channel MFET PowerTrench 50 mOm 30V 21A
 CEP(B)603AL (CET) N-Channel MFET Enhancement 40 mOm 30V 25A
 12N03L (Infineon) N-Channel MFET OptiMOS Buck 10.4 mOm 30V 30A
 FDD6612A (FAIRCHILD) N-Channel MFET PowerTrench 28 mOm 30V 30A
 APM3023 N-Cannael MFET Enhancement 28 mOm 30V 30A
2SK2684 (Hitachi) N-Cannael MFET DV-L 20 mOm 30V 30A
 FDP(B)603AL(FAIRCHILD)N-Channel MFET Enhancement 36 mOm 30V 33A
 CEP(B)7030L (CET) N-Channel MFET Enhancement 30 mOm 30V 40A
 15N03L (Infineon) N-Channel MFET OptiMOS Buck 12.6 mOm 30V 42A
 PHP45N03LT N-Channel MFET TrenchMOS 24 mOm 30V 45A
60T03H N-Channel MFET Enhancement 12 mOm 30V 45A
 HUF76121P3(S3S) N-Channel MFET UltraFET Logic 21 mOm 30V 47A
 FDD6035AL (FAIRCHILD) N-Channel MFET PowerTrench 17 mOm 30V 48A
 FDD6296 (FAIRCHILD) N-Channel MFET PowerTrench 11.3 mOm 30V 50A
 CEP(B)6030L (CET) N-Channel MFET Enhancement 20 mOm 30V 52A
 STB55NF03L B55NF(STB) N-Channel MFET STripFET 10 mOm 30V 55A
 76129S (FAIRCHILD) N-Channel MFET UltraFET 16 mOm 30V 56A
FDD8880 (FAIRCHILD) N-Channel MFET PowerTrench 9 mOm 30V 58A
SDP/B60N03L (SamHop) N-Channel MFET 16 mOm 30V 60A
 FQP60N03L (FAIRCHILD) N-Channel MFET LOGIC 13.5 mOm 30V 60A
 70T03H N-Channel MFET Enhancement 9 mOm 30V 60A
 FDD6606 (FAIRCHILD) N-Channel MFET PowerTrench 8 mOm 30V 75A
 85T03H N-Channel MFET Enhancement 6 mOm 30V 75A
 MTB1306 (Motorolla) N-Channel MFET Enhancement 6 mOm 30V 75A
 HUF76139P3(S3S) N-Channel MFET LOGIC UltraFET 7.5 mOm 30V 75A
 (FAIRCHILD)
 07N03L (Infineon) N-Channel MFET OptiMOS Buck 5.9 mOm 30V 80A
 FDB6670AL N-Channel MFET Log PowerTrench 6.5 mOm 30V 80A
(FAIRCHILD)
 AOD412 N-Channel MFET Enhancement 10 mOm 30V 85A
 FDD8896 (FAIRCHILD) N-Channel MFET PowerTrench 5.7 mOm 30V 94A
 FDP7030L (FAIRCHILD) N-Channel MFET LOGIC Enhancement 11 mOm 30V 100A
 N035AF N-Channel MFET 30V
PHP3055E, PHD3055E N-Channel MFET TrenchMOS 150 mOm 55V 10A
 (Philips)
SN7002N (Infineon) N-Channel MFET SIPMOS Small-Signal 5mOm 60V 0.2A
 2N7002 (Philips) N-Channel MFET Enhancement 5000 mOm 60V 0.3A
 CEP3055L (CET) N-Channel MFET Enhancement 120 mOm 60V 3.7A
 STB55NF06-1 N-CHANNEL STRIPFET II MFET 17 mOm 60V 50A
 STB55NF06L N-CHANNEL STRIPFET II MFET 14 mOm 60V 55A