HITFET™ Smart Low-Side Switches

Infineon HITFET™ Smart Low-Side Switches are versatile power transistors ideally designed for automotive and industrial applications. Their built-in intelligence and protective features offer improved performance & reliability over conventional, discrete solutions. The HITFET Smart Low-Side Switches provide a higher level of protection with overtemperature, short circuit, overcurrent, overvoltage, and ESD. Infineon HITFET combines all these protection features in one easy-to-use device.

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Qty. RoHS ECAD Model Type
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Output Current
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On Resistance - Max
On Time - Max
Off Time - Max
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Infineon Technologies Power Switch ICs - Power Distribution NPN Silicon AF TRANSISTOR
Datasheet
10,326In Stock
12,000Expected 2026/09/17
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Side 1 Output 1.8 A 7.5 A 200 mOhms 100 us 100 us - 40 C + 150 C SMD/SMT SOT-223-4 HITFET Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 2.17A
Datasheet
14,547In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Side 1 Output 2.1 A 15 A 100 mOhms 100 us 100 us - 40 C + 150 C SMD/SMT SOT-223-4 HITFET Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 3A
Datasheet
6,417In Stock
12,000Expected 2026/12/10
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Side 1 Output 3 A 24 A 50 mOhms 100 us 100 us 1.3 V to 2.2 V - 40 C + 150 C SMD/SMT SOT-223-4 HITFET Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET IC PWR SWITCH LOW SIDE 0.64A
Datasheet
14,478In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Side 1 Output 640 mA 7.5 A 500 mOhms 100 us 100 us 1.3 V to 2.2 V - 40 C + 150 C SMD/SMT SOT-223-4 HITFET Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET IC PWR SWITCH LOW SIDE 0.55A
Datasheet
6,151In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 2 Output 350 mA 600 mA 700 mOhms 38 us 45 us - 40 C + 150 C SMD/SMT SOIC-8 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 1.3A
Datasheet
9,116In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 2 Output 1.3 A 7.5 A 200 mOhms 100 us 100 us 1.3 V to 2.2 V - 40 C + 150 C SMD/SMT SOIC-8 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 1.3A
Datasheet
4,610In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 1.3 A 7.5 A 200 mOhms 100 us 100 us 1.3 V to 2.2 V - 40 C + 150 C SMD/SMT SOIC-8 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
6,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Side 1 Output 5 A 14 A 70 mOhms 2.8 us 4 us 3 V to 5.5 V - 40 C + 150 C SMD/SMT TDSO-8 BTF3035EJ Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
4,858In Stock
21,000On Order
Min.: 1
Mult.: 1
: 3,000

Low Side 1 Output 2 A 5 A 250 mOhms 2.8 us 4 us 3 V to 5.5 V - 40 C + 150 C SMD/SMT TDSO-8 BTF3125EJ Reel, Cut Tape
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 3.5A
Datasheet
1,863In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 3.5 A 24 A 50 mOhms 100 us 100 us - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 4.6A
Datasheet
2,130In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 5.5 A 45 A 28 mOhms 120 us 120 us 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
3,089In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 5 A 18 A 50 mOhms 100 us 120 us 60 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
1,770In Stock
12,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 5 A 18 A 28 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
17,276In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Side 1 Output 5 A 20 A 70 mOhms 115 us 210 us 3 V to 5.5 V - 40 C + 150 C SMD/SMT HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
1,756In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 3.6 A 10 A 46 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
6,486In Stock
22,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 3.6 A 10 A 46 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
3,060In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 2 A 6 A 104 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution 10mOhm SMART LW SIDE PWR SWITCH
Datasheet
4,652In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 7.8 A 70 A 10 mOhms 250 us 250 us 6 V to 45 V - 40 C + 150 C SMD/SMT TO-252-5 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution 10mOhm SMART LW SIDE PWR SWITCH
Datasheet
4,946In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 7.8 A 70 A 10 mOhms 250 us 250 us 6 V to 45 V - 40 C + 150 C SMD/SMT TO-252-5 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
3,781In Stock
30,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Side 1 Output 16 A 63 mOhms 17 us 44.2 us 3.3 V to 5.5 V - 40 C + 150 C SMD/SMT TDSO-8 Reel, Cut Tape, MouseReel

Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 3A
Datasheet
12,492In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Side 1 Output 3 A 24 A 50 mOhms 100 us 100 us 1.3 V to 2.2 V - 40 C + 150 C SMD/SMT SOT-223-4 HITFET Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution SMART LW SIDE PWR 42V 2.4A
Datasheet
499In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

High Side 1 Output 2.4 A 15 A 100 mOhms 100 us 100 us - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
835In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 3.6 A 10 A 46 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET SMART LOWSIDE PWR SW
Datasheet
1,309In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

Low Side 1 Output 2 A 6 A 104 mOhms 100 us 120 us 2 V to 10 V - 40 C + 150 C SMD/SMT TO-252-3 HITFET AEC-Q100 Reel, Cut Tape, MouseReel
Infineon Technologies Power Switch ICs - Power Distribution HITFET
Datasheet
96In Stock
15,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Side 1 Output 7 A 30 A 20 mOhms 42.2 us 139 us 3.3 V to 5.5 V - 40 C + 150 C SMD/SMT Reel, Cut Tape, MouseReel