ROHM 3.89 V Zener Diode Single 500 mW Surface Mount TUMD2M 2-Pin TFZVTR3.9B

ROHM TFZVTR3.9B is a high-reliability 3.89 V Zener Diode engineered for voltage regulation applications. Featuring a single diode element, this device is packaged in a small power mold type TUMD2M surface mount package designed for automatic chip mounting, ensuring efficient and precise voltage control in compact electronic circuits.

This Zener diode boasts a maximum power dissipation of 500 mW and supports operating temperatures up to 150°C, making it suitable for demanding industrial, electronics manufacturing, and power supply applications. The device’s low maximum reverse leakage current of 5 μA and maximum Zener impedance of 50 Ω ensure minimal energy loss and effective voltage stabilization under varied load conditions.

With pin count of 2 and compact physical dimensions measuring 2.7 mm in length and 0.8 mm in height, the TFZVTR3.9B allows for integration into space-sensitive printed circuit board designs. Its RoHS compliance underlines environmental safety and adherence to regulatory standards.

Typical uses include AC servo systems and precision power regulation in electronic components and semiconductor devices. This diode features a single element configuration suitable for precise voltage regulation. Mount type is surface mount with a 2-pin package facilitating automatic chip mounting.

Maximum operating temperature is 150°C ensuring reliable performance in demanding industrial environments. Test current is rated at 20 mA to validate stable Zener voltage behavior. The device offers a maximum Zener impedance of 50 Ω for consistent voltage regulation.

Maximum reverse leakage current is low at 5 μA reducing power loss and enhancing efficiency. Compact dimensions of 2.7 mm length and 0.8 mm height enable use in tight PCB layouts. Compliance with RoHS standards ensures environmentally safe manufacturing processes.

Manufactured in Thailand with high reliability and quality standards.

This product is ideal for industrial, manufacturing, power supply, and electronic component applications requiring precise voltage regulation. Explore more ROHM semiconductor components and similar Zener Diodes at EnvMart.