Diodes Incorporated ZXT10N15DE6TC

Overview

ZXT10N15DE6 from Diodes Incorporated is a 15V NPN low-saturation switching transistor in SOT26 package, rated for 4A continuous collector current and 13A peak pulse current, with R_CE(SAT) = 50 mΩ and V_CE(sat) ≤ 70 mV at 1 A - optimized for high-efficiency DC–DC converters and motor control switches.

For engineers reviewing the ZXT10N15DE6 datasheet, ZXT10N15DE6 pinout, ZXT10N15DE6 application, or ZXT10N15DE6 equivalent, key selection criteria include its AEC-Q101 qualification, low on-resistance under high-current drive (IC/IB = 50–100), thermal resistance of 73°C/W (R_θJL), and validated safe operating area up to 15 V / 4 A DC.

Technical Context

This NPN bipolar junction transistor features a robust silicon die optimized for fast switching and low conduction loss in power management circuits. Its BV_CEO = 15 V, V_BE(sat) = 0.94 V at 4 A/50 mA, and f_T = 80–120 MHz enable stable operation in synchronous rectifier and load-switch topologies.

The device operates across –55°C to +150°C, with ESD HBM rating of 4 kV and JEDEC-compliant thermal performance. Its SOT26 package integrates three emitter leads (E1–E3) and dual collector terminals (C1, C2) to reduce parasitic inductance and improve current sharing in high-dI/dt applications.

Key Specifications

Pinout & Package

Package: SOT26 - 6-pin surface-mount plastic package with three emitter terminals (E1, E2, E3), two collector terminals (C1, C2), and one base terminal (B). Molded "Green" compound, UL 94V-0 rated, 0.015 g weight.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN low-saturation switching transistor applications.

Compared with ZXT10N15DFTA, the ZXT10N15DE6 delivers 2× current capacity and lower thermal resistance via its SOT26 layout; versus DMT3006LPSQ-13, it offers simpler drive architecture and better low-current linearity, though at higher conduction loss above 3 A.

Availability

ZXT10N15DE6 is available at Aetrix Electronics and suitable for automotive DC–DC converters, industrial motor control, and server power management requiring stable component supply and AEC-Q101 compliance.

Supply support for ZXT10N15DE6 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 power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.

ZXT10N15DE6 belongs to Diodes' ZXT series of high-current, low-V_CE(sat) bipolar transistors - engineered specifically for space-constrained, thermally demanding power switching applications where MOSFET gate drive complexity must be avoided.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum base current is 500 mA per Absolute Maximum Ratings table. However, for reliable 4 A continuous collector current, the recommended base drive is 50 mA (IC/IB = 80), verified across –55°C to +125°C. Exceeding 100 mA base current does not improve saturation and risks localized heating at the bond wire.

Can ZXT10N15DE6 replace a MOSFET in a 12 V synchronous buck converter?

Yes - as the low-side switch, provided gate drive is replaced with appropriate base resistor network (e.g., 100 Ω series + 1 kΩ pull-down). Its 70 mV V_CE(sat) at 1 A yields lower conduction loss than many 20 V MOSFETs below 2 A, though switching losses increase above 1 MHz due to minority-carrier storage delay.

Is the SOT26 package compatible with standard SOT23 reflow profiles?

Yes - the SOT26 footprint is mechanically compatible with SOT23-6 stencil apertures and reflow profiles. Its J-STD-020 Level 1 moisture sensitivity allows floor life indefinitely at ≤30°C/60% RH, eliminating bake requirements prior to assembly.

Does the triple-emitter configuration require separate PCB traces?

No - all three emitter pins (E1–E3) are internally shorted and must be connected to the same net on the PCB. The design intent is mechanical current spreading, not functional isolation; connecting them separately introduces imbalance and potential thermal runaway.