Diodes Incorporated DCX69-16-13

Overview

DCX69-16-13 from Diodes Incorporated is a PNP surface-mount bipolar junction transistor in SOT89 package, rated for -20 V V_CEO, -1.0 A I_C, and 1 W power dissipation at 25°C ambient. It delivers h_FE = 100–250 at -500 mA / -1.0 V, with V_CE(SAT) ≤ -0.5 V and f_T ≥ 40 MHz, targeting medium-power switching in automotive body control modules and industrial relay drivers.

For engineers reviewing the DCX69-16-13 datasheet, DCX69-16-13 pinout, DCX69-16-13 application, or DCX69-16-13 equivalent, key selection criteria include verified PNP polarity, SOT89 thermal performance (R_θJA = 125°C/W), AEC-Q101 qualification, -55°C to +150°C operating range, and direct replacement guidance versus BCX6925.

Technical Context

This device operates as a medium-power PNP BJT optimized for linear amplification and saturated switching. Its epitaxial planar die construction ensures stable h_FE across temperature (-55°C to +150°C), while the SOT89 package enables efficient heat transfer on FR-4 PCBs with Diodes' AP02001 pad layout.

It supports pulsed operation up to 2.0 A I_CM, with V_BE(ON) ≤ -1.0 V at -500 mA and C_obo = 17 pF at -10 V, making it suitable for low-to-moderate frequency (<200 MHz) switching where gain-bandwidth trade-offs are managed via bias current selection.

Key Specifications

Pinout & Package

DCX69-16-13 uses the SOT89 surface-mount package: molded green plastic housing (UL 94V-0), 0.055 g mass, moisture sensitivity level 1, and matte tin-plated copper leadframe. Dimensions conform to JEDEC TO-243AA standard: D = 4.5 mm, E = 2.45 mm, H = 4.1 mm, L = 1.05 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DCX69-16-13, BCX6925 offers higher guaranteed h_FE in the same thermally capable SOT89 package, while MMBT6517 trades thermal robustness for footprint reduction-making DCX69-16-13 optimal for cost-sensitive, thermally demanding medium-power designs.

Availability

DCX69-16-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial relay interfaces, and DC motor brake circuits requiring stable component supply despite its obsolete status and formal discontinuation notice.

Supply support for DCX69-16-13 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 and manufacturing operations across Asia and the Americas.

The DCX69 series belongs to Diodes' AEC-Q101-qualified general-purpose transistor portfolio, designed specifically for automotive and industrial applications demanding high reliability, thermal resilience, and environmental compliance.

FAQ

Is DCX69-16-13 still in production?

No-DCX69-16-13 is officially obsolete and discontinued per Diodes document DS31264 Rev. 7-4 (June 2021). Aetrix Electronics maintains limited legacy stock with full traceability and provides BCX6925 as the recommended functional replacement with identical SOT89 packaging and enhanced h_FE specification.

What is the correct pinout orientation for DCX69-16-13 on PCB layout?

With the marking side up and leads pointing downward, Pin 1 (collector/tab) is the leftmost terminal, Pins 2 and 4 (emitter) are center-left and center-right (internally shorted), and Pin 3 (base) is rightmost. The exposed tab must be soldered to a thermal pad connected to ground or collector net per Diodes AP02001 guidelines.

Can DCX69-16-13 replace BCX6925 in existing designs?

Yes-DCX69-16-13 is pin- and package-compatible with BCX6925 and shares identical maximum ratings (V_CEO, I_C, P_D). However, its h_FE range (100–250) is narrower than BCX6925's (160–375), so verify base drive sufficiency at minimum gain and worst-case temperature in high-reliability applications.

Why does DCX69-16-13 have two emitter pins (2 and 4)?

Pins 2 and 4 are internally shorted to the same emitter node, providing dual connection points to improve current handling, reduce bond wire stress, and enhance mechanical stability during reflow and thermal cycling-critical for automotive-grade reliability in vibration-prone environments.