Diodes Incorporated ZXTN25060BFHTA

Overview

ZXTN25060BFHTA from Diodes Incorporated is a 60V, 3.5A NPN medium-power transistor in SOT23 package, featuring V_CE(SAT) = 65 mV @ 1 A, R_CE(SAT) = 43 mΩ, and AEC-Q101 qualification for automotive reliability. It serves as a high-current switching element in DC-DC converters, LED drivers, and motor control stages where low saturation voltage and thermal robustness are critical.

For engineers reviewing the ZXTN25060BFHTA datasheet, ZXTN25060BFHTA pinout, ZXTN25060BFHTA application, or ZXTN25060BFHTA equivalent, key selection criteria include its 150 V V_CBO/V_CEX blocking capability, 1.25 W power dissipation at full copper PCB layout, and complementary PNP pairing with ZXTP25060BFH for H-bridge designs.

Technical Context

This NPN bipolar junction transistor operates in linear or saturated switching mode with h_FE = 100–300 (IC = 10 mA to 3.5 A), enabling precise current gain control across load ranges. Its BVECO = 6 V and VEBO = 7 V define safe reverse-bias emitter-base operation, while f_T = 185 MHz supports fast-switching applications up to several hundred kHz.

The device's thermal resistance R_θJA varies from 69 °C/W (high-copper 50 mm × 50 mm PCB) to 171 °C/W (minimal 15 mm × 15 mm layout), directly linking board design to maximum allowable continuous current. ESD ratings of 4 kV HBM and 400 V MM confirm suitability for automated assembly and industrial environments.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin-plated leads, UL 94V-0 flammability rating, moisture sensitivity level 1, and 0.008 g mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MJD127G and ZXTN2020ZTA, ZXTN25060BFHTA uniquely balances 60 V blocking, 3.5 A current, SOT23 compactness, and AEC-Q101 qualification-making it optimal for space-constrained 24–48 V automotive and industrial switching where reliability and thermal efficiency are jointly prioritized.

Availability

ZXTN25060BFHTA is available at Aetrix Electronics and suitable for automotive LED drivers, industrial DC-DC converters, and brushed motor control requiring stable component supply, AEC-Q101 compliance, and SOT23 footprint consistency.

Supply support for ZXTN25060BFHTA 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, specializing in high-reliability components for automotive, industrial, and computing markets.

ZXTN25060BFHTA belongs to Diodes' ZXT series of AEC-Q101-qualified medium-power transistors, designed specifically for robust switching in harsh-environment automotive subsystems and industrial power management.

FAQ

What is the maximum safe operating temperature for ZXTN25060BFHTA?

The device has an operating junction temperature range of −55 °C to +150 °C. At ambient temperatures above 25 °C, derating applies: for example, on a 50 mm × 50 mm PCB (R_θJA = 100 °C/W), maximum continuous power drops to 1.05 W above 25 °C, limiting usable I_C to ~2.8 A at 85 °C ambient.

Can ZXTN25060BFHTA replace a MOSFET in low-side switching applications?

Yes, when gate drive simplicity and cost outweigh R_DS(on) advantages. Its 43 mΩ effective on-resistance and 65 mV V_CE(SAT) deliver comparable conduction loss to many 30 V MOSFETs at 1 A, but requires ~100 mA base current versus µA gate leakage-making it suitable where BJT drive circuitry already exists.

Is ZXTN25060BFHTA pin-compatible with other SOT23 NPN transistors?

It follows standard SOT23 pinout (Emitter-Base-Collector on pins 1–2–3), matching industry convention. However, electrical parameters differ significantly-e.g., MMBT3904 offers only 200 mA I_C and 40 V V_CEO, so substitution requires verification of voltage, current, and thermal margins.

Does ZXTN25060BFHTA require a base resistor in all applications?

Yes. With a maximum base current rating of 200 mA and h_FE as low as 20 at 3.5 A, a current-limiting resistor is mandatory to prevent base-emitter junction damage. For 3.5 A switching, a 10 Ω resistor (with 3.5 V drive) delivers ~350 mA IB, ensuring saturation while staying within absolute max ratings.