Diodes Incorporated ZXTN25060BZTA

Overview

ZXTN25060BZTA from Diodes Incorporated is a 60V NPN medium-power transistor in SOT89 package, rated for 5A continuous collector current, with V_CE(sat) < 70 mV at 1 A and R_sat = 48 mΩ, used as a high-efficiency power switch in DC-DC modules and motor drivers.

For engineers reviewing the ZXTN25060BZTA datasheet, ZXTN25060BZTA pinout, ZXTN25060BZTA application, or ZXTN25060BZTA equivalent, key selection criteria include saturation voltage at high I_C, thermal resistance under PCB copper area variations, safe operating area (SOA) limits, and AEC-Q101 qualification status for automotive-grade reliability.

Technical Context

This NPN bipolar junction transistor operates in linear or saturated switching mode with BV_CEO = 60 V and BV_CBO = 150 V, enabling use in 48V system interfaces and flyback snubber circuits. Its f_T = 185 MHz supports fast switching up to ~100 kHz with low storage time (t_s = 509 ns) and fall time (t_f = 57 ns).

Thermal performance depends on PCB layout: R_θJA ranges from 28 °C/W (50 mm × 50 mm, 2 oz Cu) to 117 °C/W (15 mm × 15 mm, 1 oz Cu), and maximum power dissipation scales from 2.4 W to 4.46 W accordingly - critical for thermal design in compact lighting and actuator driver PCBs.

Key Specifications

Pinout & Package

Package: SOT89 - surface-mount plastic package with exposed collector pad for enhanced thermal conduction; dimensions per JEDEC MO-203AA (D1 = 1.733 mm, E = 2.50 mm, H = 4.10 mm); RoHS-compliant, halogen-free, matte tin-plated leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN medium-power transistor applications.

Compared with ZXTN25040BZTA, this part adds 20 V blocking headroom critical for 48 V industrial systems; versus MJD122G, it delivers 17× lower V_CE(sat) and 40% smaller footprint - enabling denser, cooler-running power stages.

Availability

ZXTN25060BZTA is available at Aetrix Electronics and suitable for emergency lighting circuits, DC fan motor drivers, and solenoid actuator interfaces requiring stable component supply across industrial and automotive production programs.

Supply support for ZXTN25060BZTA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

ZXTN25060BZTA belongs to Diodes' ZXT series of high-performance medium-power transistors, engineered for high-current switching in space-constrained industrial and automotive power management applications.

FAQ

What is the maximum allowable base current for ZXTN25060BZTA?

The absolute maximum base current is 1 A per the datasheet's Absolute Maximum Ratings table. However, for reliable saturation at I_C = 5 A, a base current of 500 mA is specified - exceeding this risks localized heating and accelerated degradation of the base-emitter junction.

Is ZXTN25060BZTA qualified to AEC-Q101?

ZXTN25060BZTA is manufactured in IATF 16949-certified facilities and supports PPAP documentation; Diodes states it is "for automotive applications requiring specific change control" and references AEC-Q101 qualification capability - full certification status must be confirmed per lot with Diodes' automotive quality team.

How does PCB copper area affect thermal performance?

R_θJA varies from 117 °C/W (15 mm × 15 mm, 1 oz Cu) to 28 °C/W (50 mm × 50 mm, 2 oz Cu). A 5 A load generates ~250 mW conduction loss; with 50 mm × 50 mm copper, junction temperature rise is ~7 °C - versus ~29 °C on minimal copper - directly impacting long-term reliability.

Can ZXTN25060BZTA replace a MOSFET in gate driver circuits?

Yes - its low R_sat (48 mΩ) and fast switching (t_f = 57 ns) make it suitable as a level-shifting or high-current buffer in MOSFET gate drivers, especially where cost or gate charge limitations favor bipolar solutions over logic-level MOSFETs.