Diodes Incorporated DPLS320A-7

Overview

DPLS320A-7 from Diodes Incorporated is a low V_CE(SAT) PNP bipolar junction transistor in SOT-23 package, rated for −20 V V_CEO, −2 A continuous collector current, and 600 mW power dissipation at 25°C ambient. It delivers −230 mV V_CE(SAT) at −2 A/−200 mA drive and supports medium-power switching and amplification in automotive and industrial control circuits.

For engineers reviewing the DPLS320A-7 datasheet, DPLS320A-7 pinout, DPLS320A-7 application, or DPLS320A-7 equivalent, key selection criteria include its AEC-Q101 qualification, −230 mV saturation voltage at high current, SOT-23 thermal resistance (209°C/W), and complementary NPN pairing with DNLS320A.

Technical Context

This PNP transistor uses epitaxial planar die construction to achieve stable gain (h_FE = 100–220) across −0.1 A to −3 A collector currents and supports pulsed operation up to −5 A peak with ≤100 ms pulse width and 25% duty cycle. Its low R_CE(SAT) of 90–115 mΩ enables efficient switching in load driver and H-bridge configurations.

Thermal performance is defined by FR-4 PCB mounting per AP02001 pad layout, delivering 209°C/W junction-to-ambient resistance. The device operates from −55°C to +150°C and meets J-STD-020D Level 1 moisture sensitivity, supporting reflow-compatible assembly without preconditioning.

Key Specifications

Pinout & Package

Package: SOT-23 - surface-mount plastic package with matte tin-plated copper leadframe, UL 94V-0 rated molding compound, and 0.008 g mass. Moisture sensitivity level 1 per J-STD-020D.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium-power switching applications.

Compared with MMBT3906 and ZTX951, DPLS320A-7 uniquely balances AEC-Q101 reliability, SOT-23 space efficiency, and −230 mV saturation voltage at −2 A-making it optimal for automotive and space-constrained industrial switching where both power density and qualification matter.

Availability

DPLS320A-7 is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, DC motor drivers, and redundant power supply OR-ing circuits requiring stable component supply and AEC-Q101 assurance.

Supply support for DPLS320A-7 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.

The DPLS320A-7 belongs to Diodes' AEC-Q101-qualified discrete transistor product line, engineered specifically for automotive and industrial applications demanding robustness, low saturation loss, and surface-mount compatibility.

FAQ

What is the maximum allowable junction temperature for DPLS320A-7?

The DPLS320A-7 has a specified operating junction temperature range of −55°C to +150°C. Its absolute maximum T_J is +150°C; sustained operation above this limit risks permanent degradation of h_FE and increased leakage. Derating begins at T_A = 25°C using R_θJA = 209°C/W.

Can DPLS320A-7 be used in linear amplifier mode?

Yes, DPLS320A-7 supports linear operation with h_FE = 100–220 across −0.1 A to −3 A at V_CE = −2 V. However, its 600 mW power limit and thermal resistance require careful biasing and heatsinking; it is optimized for switching, not high-fidelity analog amplification.

Is the SOT-23 footprint compatible with standard pick-and-place equipment?

Yes, the SOT-23 package conforms to JEDEC MO-178AB, with 0.915 mm nominal lead pitch and 1.30 mm body width. Its matte tin finish and J-STD-020D Level 1 moisture sensitivity ensure compatibility with standard reflow profiles and automated assembly lines without special handling.

Does DPLS320A-7 have built-in ESD protection?

No, DPLS320A-7 does not integrate ESD protection circuitry. Its C_ob = 50 pF and V_(BR)EBO = −5 V indicate susceptibility to ESD damage during handling. Diodes Incorporated recommends grounding straps, ionized air, and IEC 61000-4-2 compliant ESD-safe workstations during assembly.