Diodes Incorporated ZTN23015CFHQTA

Overview

ZTN23015CFHQTA from Diodes Incorporated is a 15V NPN medium-power bipolar junction transistor (BJT) in SOT23 package, AEC-Q101 qualified for automotive use, with V_CEO = 15 V, I_C = 6 A continuous, and V_CE(sat) = 7 mV typical at 0.1 A - deployed in MOSFET/IGBT gate drivers and motor drive stages.

For engineers reviewing the ZTN23015CFHQTA datasheet, ZTN23015CFHQTA pinout, ZTN23015CFHQTA application, or ZTN23015CFHQTA equivalent, key selection criteria include low saturation voltage under high-current switching, thermal performance on FR-4 PCBs, AEC-Q101 qualification status, and SOT23 footprint compatibility with space-constrained automotive power stages.

Technical Context

This NPN BJT operates as a high-current, low-V_CE(sat) switch in linear or saturated mode, supporting pulsed peak currents up to 12 A with <30 mV saturation voltage at 1 A. Its 60 V V_CBO/V_CEV rating enables robust blocking in DC-DC and gate-drive applications where transient overvoltage may occur.

The device delivers h_FE = 150–350 across 0.01–6 A collector current range and f_T = 235 MHz, confirming suitability for fast-switching control paths. Thermal resistance R_θJA varies from 69 °C/W (50 mm × 50 mm 2 oz Cu) to 171 °C/W (15 mm × 15 mm 1 oz Cu), enabling thermal design tailoring per board layout.

Key Specifications

Pinout & Package

Package: SOT23 (Type DN), surface-mount plastic case with matte tin-plated leads, moisture sensitivity level 1, weight ≈ 0.008 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS60201LT1G and PBSS4041T, ZTN23015CFHQTA uniquely combines 6 A continuous current, sub-30 mV V_CE(sat) at 1 A, and AEC-Q101 qualification - making it the only option among the three validated for high-current automotive gate driving and motor control without external current boosting.

Availability

ZTN23015CFHQTA is available at Aetrix Electronics and suitable for DC-DC converters, MOSFET gate drivers, motor drives, and relay/lamp drivers requiring stable component supply in automotive production programs.

Supply support for ZTN23015CFHQTA 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 North America.

ZTN23015CFHQTA belongs to Diodes' Automotive-Grade Power Transistor product line, engineered specifically for high-reliability, high-current switching in engine control units, body electronics, and ADAS power subsystems.

FAQ

What is the maximum allowable base current for ZTN23015CFHQTA?

The absolute maximum base current is 1.2 A, specified in the Absolute Maximum Ratings table. This limit applies under pulsed conditions (duty cycle ≤ 2%, pulse width ≤ 300 µs). For continuous operation, base current should be sized to maintain I_C/I_B ≤ h_FE(min) = 150 at 6 A, resulting in ≥40 mA recommended steady-state I_B.

Is ZTN23015CFHQTA suitable for linear amplifier applications?

No - ZTN23015CFHQTA is optimized for switching operation, not linear amplification. Its low V_CE(sat) and high I_C ratings reflect saturation-mode design; the datasheet does not specify linearity parameters (e.g., distortion, gain flatness) or safe operating area (SOA) curves for analog use.

How does the SOT23 package handle thermal dissipation at 6 A?

At 6 A with V_CE(sat) = 130 mV (max), power dissipation reaches 0.78 W. With R_θJA = 69 °C/W on a 50 mm × 50 mm 2 oz Cu PCB, junction temperature rise is ~54 °C above ambient - well within the -55 to +150 °C operating range. No external heatsink is required under these conditions.

Does ZTN23015CFHQTA require a base resistor in gate-drive configurations?

Yes - a series base resistor is mandatory to limit peak base current during switching transients. For example, driving from a 5 V MCU GPIO with 120 mA peak I_B, a minimum 33 Ω resistor (5 V / 0.12 A ≈ 42 Ω; 33 Ω provides margin) prevents exceeding the 1.2 A absolute max while ensuring sufficient drive strength.