The 1SMA4735AG is a Zener Diode with SMD (Surface Mount Device) package manufactured by Shikues. It is RoHS (Restriction of Hazardous Substances) compliant, meaning it does not contain lead and other hazardous materials. It is a single package diode capable of providing a breakdown voltage of 37V and an operating temperature range of -55°C to 125°C. It is ideal for use in applications requiring the ability to withstand higher reverse voltages as well as providing superior temperature stability and reliability. It is also suitable for use in circuit protection, voltage stabilization, and signal switching.