
KA78R33CTU
onsemiExtended
-20℃~+80℃@(Ta) 1 10V 10mA 1A 3.3V 500mV@(1A) 55dB Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Input overvoltage protection Positive TO-220F-4L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Part id
- onsemi/KA78R33CTU
- Category
- Voltage Regulators, Linear, Low Drop Out (LDO) Regulators
- Package
- TO-220F-4L
- Pins
- 5
- In stock
- 0 at JLCPCB (C3745344)
- Used on
- 1 open-source board
Overview
The KA78R33CTU is a voltage Regulators, Linear, Low Drop Out (LDO) Regulator made by onsemi in a TO-220F-4L package with 4 pins. -20℃~+80℃@(Ta) 1 10V 10mA 1A 3.3V 500mV@(1A) 55dB Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Input overvoltage protection Positive TO-220F-4L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:KA78R33CTU, from EasyEDA) and its footprint (Package_TO_SOT_THT:TO-220F-4_Vertical, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3745344). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | VIN | Unspecified |
| 2 | VO | Unspecified |
| 3 | GND | Unspecified |
| 4 | VDIS | Unspecified |
Open-source boards using it
1- 2 layers118.7 × 86.4 mm

Parts like it
8NJM2388F33
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TO-220F-4L-20℃~+80℃@(Ta) 1 10V 10mA 2A 3.3V 500mV@(2A) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Input overvoltage protection Positive TO-220F-4L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSonsemiVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAMS1117-3.3
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Questions
Is there a KiCad symbol and footprint for the KA78R33CTU?
Yes. The symbol is EasyEDA_Cloud:KA78R33CTU and the footprint Package_TO_SOT_THT:TO-220F-4_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the KA78R33CTU?
TO-220F-4L, with 4 pins. Its footprint is drawn on this page.
Where is the KA78R33CTU datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the KA78R33CTU?
JLCPCB lists it as part C3745344, with 0 in stock; the sellers' links on this page open their listings.
What can replace the KA78R33CTU?
Parts like it in the library: the NJM2388F33 by Nisshinbo Micro Devices Inc., the KA278R33TU by onsemi, the AMS1117-3.3 by Advanced Monolithic Systems and the AMS1117-3.3 by UMW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the KA78R33CTU?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.