Diodes Incorporated DZTA92-13

Overview

DZTA92-13 from Diodes Incorporated is a PNP high-voltage bipolar junction transistor in SOT223 package, rated for -300V V_CEO, -500mA I_C, 1.86W power dissipation, and V_CE(sat) ≤ -500mV at -20mA/-2mA. It serves as a medium-power switching device in SMPS primary-side control, video output stages, and motor driver H-bridge high-side switches.

For engineers reviewing the DZTA92-13 datasheet, DZTA92-13 pinout, DZTA92-13 application, or DZTA92-13 equivalent, key selection criteria include verified high-voltage blocking capability, low saturation voltage under defined drive conditions, thermal resistance to case (13°C/W), complementary pairing with DZTA42, and automotive-grade packaging compliance per J-STD-020 Level 1.

Technical Context

This PNP transistor operates in linear amplification and saturated switching modes, with guaranteed BV_CEO = -300V and f_T = 50MHz at -10mA/-20V, enabling use in high-voltage pulse-width modulation circuits. Its h_FE ranges from 25 to 40 across I_C = -1mA to -30mA, supporting stable current gain in feedback-controlled power stages.

Thermal design relies on its R_θJC = 13°C/W and R_θJL = 41°C/W values-measured with collector lead soldered to 25mm × 12mm 2oz copper-enabling predictable junction temperature rise in board-level thermal management for industrial motor drivers and SMPS.

Key Specifications

Pinout & Package

Package: SOT223 - surface-mount plastic package with exposed collector tab for thermal conduction and mechanical anchoring; 0.112g mass; UL 94V-0 rated molding compound; matte tin-plated leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP high-voltage switching applications.

Compared with MJD2955G and DXTA92-13, DZTA92-13 uniquely balances -300V capability, SMT compatibility, and 1.86W dissipation in a thermally efficient SOT223 package-making it optimal for compact, high-input-voltage industrial power stages where voltage margin and board-level thermal management are critical.

Availability

DZTA92-13 is available at Aetrix Electronics and suitable for switch-mode power supplies, video output amplifiers, and motor driver circuits requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for DZTA92-13 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.

The DZTA92 belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for industrial and automotive power conversion applications demanding robust voltage blocking, controlled saturation behavior, and thermally efficient SMT packaging.

FAQ

What is the maximum continuous collector current for DZTA92-13 at 100°C case temperature?

At T_C = 100°C, the maximum continuous I_C is derated to approximately -310mA based on its 1.86W P_D rating and R_θJC = 13°C/W. This assumes the collector tab is soldered to ≥25mm × 12mm 2oz copper on FR-4; actual value depends on measured T_C and PCB thermal design.

Is DZTA92-13 qualified to AEC-Q101 for automotive use?

DZTA92-13 is manufactured in IATF 16949-certified facilities and supports PPAP documentation, but it is not pre-qualified to AEC-Q101. Customers requiring automotive qualification must initiate a formal qualification program with Diodes Incorporated; the device's construction and test flow are compatible with AEC-Q101 requirements.

Can DZTA92-13 be used as a direct replacement for DZTA42 in complementary circuits?

No-DZTA92-13 is PNP while DZTA42 is NPN; they are complementary types, not drop-in replacements. In push-pull or H-bridge designs, both are used together: DZTA42 handles low-side switching, DZTA92-13 handles high-side sourcing. Swapping polarity without circuit redesign will cause functional failure.

What is the recommended minimum pad layout for SOT223 to achieve the published R_θJA of 67.7°C/W?

The 67.7°C/W R_θJA is measured with the collector lead mounted on a 25mm × 12mm 2oz copper area on a single-sided 1.6mm FR-4 PCB. The recommended pad layout includes full copper fill under the exposed collector tab, thermal vias to inner/ground planes, and ≥3mm trace width for emitter/base connections to minimize parasitic resistance and inductance.