Diodes Incorporated DXT690BP5-13

Overview

DXT690BP5-13 from Diodes Incorporated is a 45V NPN high-gain bipolar junction transistor in PowerDI®5 package, rated for 3A continuous collector current and 6A peak pulse current, with DC current gain hFE ≥400 at 1A and RCE(sat) = 77mΩ at IC = 3A, used as a power switch in automotive LED drivers and IGBT gate drive circuits.

For engineers reviewing the DXT690BP5-13 datasheet, DXT690BP5-13 pinout, DXT690BP5-13 application, or DXT690BP5-13 equivalent, key selection criteria include VCEO = 45V, IC = 3A, hFE > 400 @ 1A, RCE(sat) ≤ 85mV @ 3A, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This NPN transistor features a high-current, low-saturation-voltage design optimized for switching applications where fast turn-on/turn-off and minimal conduction loss are critical. Its hFE is specified up to 6A, supporting stable gain under heavy load conditions, and its thermal resistance RθJC = 10°C/W enables efficient heat transfer from junction to case via the exposed collector pad.

The device operates across –55°C to +150°C and meets JEDEC ESD HBM Class 3A (4kV), making it suitable for harsh automotive environments. Its PowerDI5 package delivers 43% smaller footprint than SOT-223 and maximum height of only 1.1mm, enabling compact PCB layouts without sacrificing thermal or electrical performance.

Key Specifications

Pinout & Package

Package: PowerDI®5 - Surface-mount, thermally enhanced plastic package with exposed collector pad for low RθJC (10°C/W) and compact 4.0mm × 6.5mm footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ZXTN618MCTA and MJD122-TP, DXT690BP5-13 offers superior gain stability up to 6A and lowest RCE(sat) in its class, making it the preferred choice for AEC-Q101-compliant, high-efficiency automotive switching where base drive simplicity and thermal performance are critical.

Availability

DXT690BP5-13 is available at Aetrix Electronics and suitable for LED driver, motor driver, and DC-DC converter applications requiring stable component supply, automotive-grade reliability, and compact thermal packaging.

Supply support for DXT690BP5-13 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, specializing in high-reliability, energy-efficient components for automotive, industrial, and consumer markets.

The DXT690BP5 belongs to Diodes' Power Transistor product line, engineered specifically for high-current, low-saturation switching in automotive power management and driver circuits where AEC-Q101 compliance and thermal efficiency are mandatory.

FAQ

What is the maximum allowable base current for DXT690BP5-13?

The absolute maximum base current is 0.5A, per the Absolute Maximum Ratings table. For reliable operation, base current should be limited to ≤150mA when driving 3A collector current (IC/IB = 20), ensuring saturation without excessive base power dissipation or gain degradation.

Does DXT690BP5-13 require a heatsink in typical automotive applications?

No external heatsink is required if the exposed collector pad is soldered to ≥50mm² of 2oz copper on FR4. With that layout, RθJA = 39°C/W allows 3.2W dissipation at TA = 85°C - sufficient for most LED and motor driver duty cycles. Smaller copper areas require derating per the datasheet's thermal curves.

How does the PowerDI5 package improve thermal performance over SOT-223?

PowerDI5 achieves RθJC = 10°C/W versus ~25°C/W for SOT-223 due to its direct-exposed-collector-pad construction and optimized internal leadframe geometry. This 60% lower junction-to-case resistance enables faster heat transfer to the PCB, allowing higher power density without increasing board area or layer count.

Is DXT690BP5-13 pin-compatible with other PowerDI5 transistors?

Yes - all PowerDI5-packaged NPN transistors from Diodes Incorporated share identical pinout (C-E-B top view) and mechanical dimensions. However, electrical parameters (VCEO, hFE, RCE(sat)) differ significantly; substitution requires verification against circuit voltage, current, and gain requirements.