Overview
The 1N4478C is a zener Diode made by Microchip Technology in a DO-41 package with 2 pins. -65℃~+175℃ 1 Independent 1.5W 27Ω 36V 50nA@28.8V DO-41 Zener Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C6656502).
Symbol
Footprint
The library has no footprint for this part yet.
Parameters
8- Diode Configuration
- 1 Independent
- Impedance(Zzk)
- 850Ω
- Impedance(Zzt)
- 27Ω
- Operating Junction Temperature Range
- -65℃~+175℃
- Pd - Power Dissipation
- 1.5W
- Reverse Leakage Current (Ir)
- 50nA@28.8V
- Tolerance
- ±2%
- Zener Voltage(Nom)
- 36V
Order codes
1- 1N4478CLCSC C6656502
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Questions
Is there a KiCad symbol and footprint for the 1N4478C?
Yes. The symbol is Device:D_Zener, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 1N4478C?
DO-41, with 2 pins.
Where is the 1N4478C datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the 1N4478C?
JLCPCB lists it as part C6656502, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 1N4478C?
Parts like it in the library: the JAN1N4478CUS/TR by Microchip Technology, the JAN1N4478DUS/TR by Microchip Technology, the JAN1N4971CUS/TR by Microchip Technology and the JAN1N4971DUS/TR by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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