1SMB5925BT3

The 1SMB5925BT3 is a 10V Zener diode from On Semiconductor designed for voltage regulation and protection applications. It offers a nominal Zener voltage of 10V with a tolerance of ±5% and a maximum power dissipation of 3W when mounted at a lead temperature of 75°C. At ambient temperature of 25°C, the power dissipation is 550mW, with a derating factor of 4.4mW/°C above 25°C. The device features a maximum Zener impedance of 4.5Ω at the test current IZT, and a forward voltage of 1.5V at 200mA.

This Zener diode is housed in a DO-214AA (SMB) surface mount package with an L-bend lead style, making it suitable for automated assembly. It is rated for an operating temperature range of -65°C to 150°C and has a thermal resistance from junction-to-lead of 25°C/W and junction-to-ambient of 226°C/W. The device meets flammability rating UL 94 V-0 and has an ESD rating of Class 3 (>16 kV) per the Human Body Model.

Typical applications include overvoltage clamping, voltage reference, and regulation in low-power DC circuits. The package is designed for both top-side and bottom-side board mounting, and the modified L-bend leads provide increased contact area for reliable soldering. The maximum lead temperature for soldering is 260°C for 10 seconds.