DiodesZetex NPN Transistor 3 A 300 V 3-Pin TO-92 ZTX857STZ

DiodesZetex ZTX857STZ is a high-performance NPN Bipolar Transistor designed for industrial electronic applications needing moderate power handling and high voltage tolerance. This transistor is presented in a standard and compact 3-pin TO-92 package suitable for through-hole mounting on printed circuit boards.

Featuring a maximum collector-emitter voltage rating of 300 V and capable of handling up to 3 A collector current, the ZTX857STZ excels in general-purpose amplifier and switch circuits in industrial, automotive, and consumer electronics settings. Its low current gain floor of 15 and power dissipation limit of 1.2 W ensure robust performance under varied load conditions.

The device offers an extended operating temperature range from -55°C up to 200°C, making it suitable for demanding environments including industrial machinery control, HVAC systems, and automotive electronics requiring thermal resilience. The transistor supports high-speed switching with a transition frequency of up to 100 MHz, catering to many signal processing and amplification tasks.

Key physical dimensions include a package height of 17.98 mm, length of 4.77 mm, and width of 2.41 mm, all tailored for efficient PCB space utilization. The transistor configuration is a single NPN type with through-hole mounting compatibility for ease of assembly and reliability in mechanical stability.

Typical applications encompass industrial electronics, power management circuits, signal amplification modules, and general-purpose switching functions. This product does not carry any special automotive or industry-specific certifications, but its broad specifications make it versatile for numerous engineering projects.

Configured as a single NPN transistor for general-purpose amplification. Maximum collector-emitter voltage of 300 V ensures high-voltage operation capability. Maximum DC collector current of 3 A supports moderate power switching applications.

Through-hole mount type for reliable PCB integration. Low minimum DC current gain of 15 with a maximum power dissipation of 1.2 W. Operating temperature range from -55°C to 200°C suitable for harsh environments. Maximum transition frequency of 100 MHz supports high-speed switching.

Compact TO-92 package with dimensions approximately 17.98 mm height, 4.77 mm length, and 2.41 mm width. Explore more electronic components and bipolars at EnvMart for reliable sourcing.