S2M | Solutions | Diode Equivalent Micro Commercial Co

S2M Diode Equivalent

This is a table of replacement models for the S2M, most of them act as switches, amplifier circuits, etc., but not the ESD1, who acts as a protection circuit.

Picture	Name	Makers	Maximum Power	Maximum Current	Maximum Voltage	Package Type
	S2M	STMicroelectronics	2.5W	2A	1000V	DO-15
	1N5408	ON Semiconductor	6.25W	3A	1000V	DO-201AD
	BYV26E	ON Semiconductor	3.0W	2.5A	1000V	DO-15
	ESD1	STMicroelectronics	0.5W	1A	30V	SOD-323
	HER308	Infineon Technologies AG	3.75W	3A	1000V	DO-201AD
	UF407	Diodes Inc.	1.0W	1A	600V	DO-41

Note:

1.When replacing with ESD1, the main role of S2M in the circuit should be considered, as S2M provides protection and rectification functions, while ESD1 only serves the purpose of circuit protection. If S2M plays a protective role in the actual circuit, ESD1 can be used as a replacement.
2.BYV26E is the most suitable substitute, as its parameters and packaging are a perfect match.