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DO-41

1N4478

Solid State System

Extended
DatasheetJLCPCBLCSCsolid-state-system/1N4478
Category
Zener Diodes
Package
DO-41
Pins
5

Overview

The 1N4478 is a zener Diode made by Solid State System in a DO-41 package with 2 pins.

PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C6984753).

Symbol

Device:D_ZenerFrom KiCad's library

Footprint

The library has no footprint for this part yet.

Parameters

9
Diode Configuration
1 Independent
Impedance(Zzk)
850Ω
Impedance(Zzt)
27Ω
Operating Junction Temperature Range
-65℃~+200℃
Pd - Power Dissipation
1.5W
Reverse Leakage Current (Ir)
50nA@28.8V
Tolerance
±5%
Zener Voltage(Nom)
36V
Zener Voltage(Range)
34.2V~37.8V

Order codes

1

Pinout

2
The pins of the 1N4478
PinNameType
1KPassive
2APassive

Questions

Is there a KiCad symbol and footprint for the 1N4478?

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 1N4478?

DO-41, with 2 pins.

Where is the 1N4478 datasheet?

Solid State System publishes it: the Datasheet link on this page opens it.

Where can I order the 1N4478?

JLCPCB lists it as part C6984753, with 0 in stock; the sellers' links on this page open their listings.

What can replace the 1N4478?

Parts like it in the library: the 1SMB5938B by LGE, the 1SMA5938B by LGE, the SMB5938B by DOWO and the SMBJ5365B by LGE. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8