Diodes Incorporated BCP5610QTC

Overview

BCP5610QTC from Diodes Incorporated is an AEC-Q101-qualified 80V NPN bipolar junction transistor in SOT223 package, rated for 1A continuous collector current, 2W power dissipation, and V_CE(SAT) < 500 mV at 500 mA/50 mA drive-used in automotive medium-power switching stages such as body control module load drivers and HVAC fan controllers.

For engineers reviewing the BCP5610QTC datasheet, BCP5610QTC pinout, BCP5610QTC application, or BCP5610QTC equivalent, key selection criteria include guaranteed V_CEO ≥ 80 V, h_FE = 25–160 across 5 mA–500 mA, thermal resistance R_θJA = 62 °C/W on 50 mm × 50 mm 1 oz copper, and AEC-Q101 qualification for under-hood reliability.

Technical Context

This NPN transistor operates in linear amplification or saturated switching mode with DC current gain h_FE of 25 (min) at I_C = 5 mA and 63 (min) at I_C = 150 mA, supporting stable biasing in automotive driver circuits. Its f_T = 100–150 MHz enables use in low-frequency signal amplification up to ~100 MHz.

V_CE(SAT) ≤ 500 mV at I_C = 500 mA / I_B = 50 mA ensures low conduction loss in 12 V automotive loads, while V_EBO = 5 V and V_CBO = 100 V provide margin against transients and reverse-biased emitter leakage in bidirectional interface designs.

Key Specifications

Pinout & Package

SOT223 package: surface-mount, 4-pin outline with exposed collector tab (pin 3) for thermal and electrical connection; molded green compound, UL 94V-0 rated, 0.112 g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ZXTN25012E6TA and BCP56-16TA, BCP5610QTC uniquely balances AEC-Q101 compliance, 80 V blocking, and broad h_FE linearity-making it optimal for automotive-grade medium-power switching where qualification and parametric consistency are mandatory.

Availability

BCP5610QTC is available at Aetrix Electronics and suitable for automotive body control modules, industrial fan controllers, and LED headlamp dimming circuits requiring stable component supply and long-term lifecycle assurance.

Supply support for BCP5610QTC 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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions with emphasis on automotive, industrial, and power management applications.

The BCP5610QTC belongs to Diodes' AEC-Q101-qualified bipolar transistor family designed specifically for automotive medium-power switching and amplification-targeting reliability-critical positions in body electronics and power distribution.

FAQ

Is BCP5610QTC suitable for high-frequency switching above 1 MHz?

No. While its f_T reaches 150 MHz, the device is optimized for medium-speed switching (≤20 kHz) and linear operation. At >100 kHz, switching losses increase significantly due to minority-carrier storage time, and SOA limitations restrict safe operating area during fast transitions.

What is the maximum allowable PCB copper area for thermal performance?

Thermal data assumes a 50 mm × 50 mm 1 oz copper pad connected to the collector tab. Larger areas improve R_θJA, but diminishing returns occur beyond 100 mm × 100 mm. Internal layer copper pours connected via ≥6 thermal vias per mm² further reduce R_θJL to ~15 °C/W.

Can BCP5610QTC replace BCP56-16 in existing designs?

Only with validation. Though pin-compatible, BCP5610QTC has higher V_CEO (80 V vs. 65 V), lower h_FE minimum at low currents, and stricter automotive qualification. Layout and thermal margins must be rechecked, especially under transient conditions and extended temperature cycling.

Does BCP5610QTC require a base resistor in all applications?

Yes. Base current must be limited to prevent exceeding I_B = 100 mA continuous or IBM = 200 mA peak. For 500 mA collector drive, a 100 Ω resistor (with 3.3 V MCU output) delivers ~28 mA base current-well within safe operating range and ensuring saturation without overdrive.