Diodes Incorporated DCP54-13

Overview

DCP54-13 from Diodes Incorporated is an NPN surface-mount bipolar junction transistor (BJT) in SOT-223 package, rated for 45 V V_CEO, 1 A continuous collector current, and 1 W power dissipation at 25°C ambient. It delivers h_FE = 100–250 at I_C = 150 mA, V_CE = 2 V, with V_CE(SAT) ≤ 500 mV at I_C = 500 mA / I_B = 50 mA, and f_T = 200 MHz - suited for medium-power switching in DC-DC converters and linear amplification stages.

For engineers reviewing the DCP54-13 datasheet, DCP54-13 pinout, DCP54-13 application, or DCP54-13 equivalent, key selection criteria include verified SOT-223 thermal resistance (R_θJA = 125°C/W), pulsed-test validated saturation voltage, complementary PNP pairing (DCP51), RoHS-compliant matte tin plating, and documented 150°C maximum junction temperature operation.

Technical Context

This NPN BJT uses epitaxial planar die construction for stable gain and low leakage. Its 45 V V_CEO/V_CB0 rating supports 24 V rail switching, while 1 A I_C capability enables driver-stage use in relay or MOSFET gate control circuits.

The device operates across –55°C to +150°C, with 10 nA I_CBO at 30 V and 150°C, confirming robust high-temperature cutoff performance. Transition frequency of 200 MHz at I_C = 50 mA / V_CE = 5 V validates suitability for audio-frequency amplification and fast-switching PWM applications.

Key Specifications

Pinout & Package

Package: SOT-223 - surface-mount plastic package with exposed thermal pad (pin 4), rated for 1 W dissipation on standard FR-4 board using Diodes AP02001 pad layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DCP54-13, BCP54 trades 50 MHz bandwidth for broader distributor availability, while BCP5416 offers identical performance with a different marking convention - both retain SOT-223 thermal pad and 1 A/45 V ratings critical for industrial switching.

Availability

DCP54-13 is available at Aetrix Electronics and suitable for DC-DC converter design, industrial relay driving, and LED current regulation requiring stable component supply and long-term manufacturability.

Supply support for DCP54-13 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 DCP54 series belongs to Diodes' general-purpose bipolar transistor product line, engineered for cost-effective, thermally robust medium-power switching and amplification in industrial, consumer, and computing applications.

FAQ

Is DCP54-13 pin-compatible with BCP54?

Yes - both use identical SOT-223 pinout (Emitter-Base-Collector-Thermal Pad). Pin 1 is emitter, pin 2 is base, pins 3 and 4 are internally connected collector terminals. No PCB redesign is needed for substitution.

What is the maximum allowable power dissipation at 70°C ambient?

Using R_θJA = 125°C/W, maximum power dissipation at T_A = 70°C is calculated as (150°C − 70°C) / 125°C/W = 0.64 W. Derating follows linear thermal model per Diodes AP02001 guidelines.

Does DCP54-13 support automotive temperature range?

No - its specified operating range is –55°C to +150°C, but it is not AEC-Q101 qualified. Diodes does not list this part in automotive-grade documentation, and no PPAP or stress-test data is published for automotive use cases.

Can DCP54-13 replace BC817 in SOT-23 designs?

No - DCP54-13 uses SOT-223 (larger, with thermal pad), while BC817 uses SOT-23. Footprint, thermal mass, and current capability differ significantly; direct replacement would require PCB redesign and thermal validation.