Diodes Incorporated DCP56-13

Overview

DCP56-13 from Diodes Incorporated is an NPN epitaxial planar silicon transistor in SOT-223 package, rated for 80 V V_CEO, 1 A I_C, and 1 W power dissipation at T_A = 25°C, with h_FE = 25–250 (depending on I_C) and f_T = 200 MHz - used in medium-power switching and linear amplification circuits in industrial power supplies and motor drivers.

For engineers reviewing the DCP56-13 datasheet, DCP56-13 pinout, DCP56-13 application, or DCP56-13 equivalent, key selection criteria include V_CEO/I_C derating at elevated ambient temperature, thermal resistance R_θJA = 125°C/W on FR-4 PCB, SOT-223 footprint compatibility, and DC current gain variation across operating current range.

Technical Context

This NPN bipolar junction transistor employs epitaxial planar die construction for stable gain and low leakage. Its complementary PNP counterpart is DCP53, enabling push-pull configurations. The device operates across –55°C to +150°C junction temperature range and supports automated SMT assembly due to SOT-223 leadframe geometry and matte tin plating.

Electrical behavior is characterized by three h_FE bins (25–100, 40–160, 100–250) depending on collector current, with V_CE(SAT) ≤ 0.5 V at I_C = 500 mA / I_B = 50 mA and V_BE(ON) ≤ 1.0 V under same conditions - confirming suitability for saturated-switching applications requiring predictable turn-on voltage and low saturation loss.

Key Specifications

Pinout & Package

Package: SOT-223 - surface-mount plastic package with exposed collector tab (Pin 1 & Pin 2 electrically connected), 4-terminal configuration optimized for thermal dissipation and automated placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DCP56-13, BCP56 offers higher f_T for faster switching, while BCP5616 provides extended voltage headroom and narrower h_FE spread - both maintain SOT-223 compatibility and eliminate redesign effort in legacy layouts.

Availability

DCP56-13 is available at Aetrix Electronics and suitable for industrial power supplies, DC motor control modules, LED driver circuits, and analog signal conditioning systems requiring stable component supply with long-term manufacturability assurance.

Supply support for DCP56-13 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 North America.

The DCP56 series belongs to Diodes' general-purpose bipolar transistor product line, engineered for cost-effective, thermally robust medium-power switching and amplification in industrial and consumer equipment where reliability and SMT compatibility are essential.

FAQ

Is DCP56-13 pin-compatible with BCP56 and BCP5616?

Yes - all three devices use identical SOT-223 package with Collector/Base/Emitter pin assignments (Pins 1&2 = C, Pin 3 = B, Pin 4 = E). Mechanical and electrical pinout alignment allows direct PCB footprint reuse without layout modification.

What is the maximum safe operating current at 85°C ambient?

At T_A = 85°C, derating begins at 1 W / 125°C/W = 8 mW/°C above 25°C. With 60°C rise, power drops to 0.52 W. Using V_CE(SAT) ≈ 0.45 V, max I_C ≈ 1.15 A - but practical limit is 700 mA to maintain <125°C junction temperature with safety margin.

Does DCP56-13 support pulsed operation beyond 1 A?

Yes - per datasheet Note 4, pulse testing allows I_C > 1 A with pulse width ≤ 300 μs and duty cycle ≤ 2%. This supports short-duration peak loads such as inrush limiting or solenoid actuation, provided average power remains within 1 W thermal limit.

Why is DCP56-13 marked "Not Recommended for New Design"?

Diodes Incorporated issued this designation because newer alternatives (BCP56/BCP5616) offer improved f_T, tighter h_FE bins, and updated qualification - not due to obsolescence or failure risk. DCP56-13 remains fully functional and supported for existing production and repair.