Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Infineon Technologies BCP54E6327HTSA1

Name: BCP54E6327HTSA1
Brand: Infineon Technologies
SKU: BCP54E6327HTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BCP54E6327HTSA1

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: BCP54E6327HTSA1.pdf

Description:: TRANS NPN 45V 1A PG-SOT223-4

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,789

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BCP54E6327HTSA1 from Infineon Technologies is an NPN silicon bipolar junction transistor designed for audio-frequency driver and output stages in linear and switching applications. It delivers 1 A continuous collector current, 45 V collector-emitter breakdown voltage (V_(BR)CEO), and low 0.5 V collector-emitter saturation voltage (V_CE(sat)) at I_C = 500 mA / I_B = 50 mA, enabling efficient power amplification in compact consumer audio amplifiers.

For engineers reviewing the BCP54E6327HTSA1 datasheet, BCP54E6327HTSA1 pinout, BCP54E6327HTSA1 application, or BCP54E6327HTSA1 equivalent, key selection criteria include its SOT-223 package thermal resistance (R_thJS ≤ 15 K/W), DC current gain range (h_FE = 25–100 at I_C = 5 mA), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This transistor operates as a medium-power general-purpose NPN switch/amplifier with complementary PNP counterparts (BCP51–BCP53). Its design emphasizes low V_CE(sat) and high I_C capability while maintaining stable h_FE across 5 mA to 500 mA collector currents and supporting f_T = 100 MHz at I_C = 50 mA / V_CE = 10 V.

Thermal performance is defined by R_thJS ≤ 15 K/W and a maximum junction temperature of 150 °C, with total power dissipation rated at 2 W under T_S ≤ 120 °C conditions. The device meets RoHS requirements and is qualified per AEC-Q101 for automotive use.

Key Specifications

Parameter	Value and Actual Design Meaning
V_(BR)CEO	45 V - Maximum safe collector-emitter voltage before avalanche breakdown at I_C = 10 mA
I_C	1 A - Continuous DC collector current rating for sustained linear or switching operation
V_CE(sat)	0.5 V - Low saturation voltage at I_C = 500 mA / I_B = 50 mA, minimizing conduction loss
h_FE	25–100 - DC current gain range at I_C = 5 mA / V_CE = 2 V, supporting predictable biasing
f_T	100 MHz - Transition frequency at I_C = 50 mA / V_CE = 10 V, enabling AF and low-RF amplification
R_thJS	≤15 K/W - Junction-to-soldering-point thermal resistance, critical for heatsink-limited PCB layouts
P_tot	2 W - Total power dissipation limit at case temperature ≤120 °C, defining thermal headroom

Pinout & Package

The BCP54E6327HTSA1 is housed in a surface-mount SOT-223 package with four terminals: emitter (pin 3), base (pin 1), collector (pins 2 and 4 tied internally), and collector tab (exposed pad, electrically connected to pins 2 and 4).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Base	Control input for current amplification; requires current-limiting resistor in series with drive source
Pin 2	Collector	Main high-current output node; electrically tied to Pin 4 and exposed collector tab
Pin 3	Emitter	Reference terminal for biasing; common return path for load current
Pin 4	Collector	Secondary collector connection; internal tie to Pin 2 improves current handling and thermal spreading
Exposed Pad	Collector	Integral thermal and electrical path to PCB copper; must be soldered to thermal pad for R_thJS compliance

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive applications including engine control modules and body electronics
Low V_CE(sat)	0.5 V at I_C/I_B = 10, enabling >90% efficiency in Class AB audio output stages
SOT-223 thermal design	Exposed collector pad and R_thJS ≤ 15 K/W support 2 W dissipation without external heatsink
Complementary pairing	Direct match with BCP51–BCP53 PNP transistors for push-pull amplifier topologies
Pb-free & RoHS compliant	Meets EU Directive 2011/65/EU; compatible with lead-free reflow soldering profiles

Applications

Audio Power Amplifier Output Stage

Automotive Door Module Driver

Use Scenario: Final output stage in 5–10 W mono audio amplifier for smart speakers and automotive infotainment systems.

IC Role / Device Role / Timing Role: NPN power switch in complementary Class AB topology, delivering linear current to speaker load.

Use Value: 0.5 V V_CE(sat) reduces heat generation and enables compact PCB layout with minimal heatsinking.

Use Scenario: Driving window lift motor, mirror actuator, or door lock solenoid in vehicle body control units.

IC Role / Device Role / Timing Role: Medium-current switching element controlled by microcontroller GPIO via base resistor network.

Use Value: AEC-Q101 qualification ensures operational reliability over -40 °C to +125 °C ambient and 150 °C junction temperature.

DC Motor Speed Control

Industrial Sensor Signal Conditioning

Use Scenario: H-bridge half-bridge leg or single-ended PWM driver for 12 V brushed DC motors in HVAC actuators.

IC Role / Device Role / Timing Role: High-side or low-side switch modulated at 1–20 kHz to regulate average motor voltage.

Use Value: 1 A I_C rating and 100 MHz f_T support clean PWM edge fidelity and minimal switching loss.

Use Scenario: Transimpedance or current-buffer stage for photodiode or thermistor signal paths in PLC analog input modules.

IC Role / Device Role / Timing Role: Linear amplifier configured in common-emitter or emitter-follower topology for gain or impedance transformation.

Use Value: Stable h_FE (25–100) and low noise characteristics enable accurate low-level signal amplification.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCP54TA	Same die, identical electrical specs; differs only in tape-and-reel packaging (3000 pcs vs. 1000 pcs) and date-code marking format	No functional difference; suitable for identical circuit designs and thermal layouts	Select based on volume procurement needs and line-side reel compatibility
MJD112G	Higher V_(BR)CEO (100 V), lower h_FE (10–60), larger TO-252 package with higher R_thJA	Better suited for 24–48 V industrial controls; less optimal for space-constrained audio PCBs	Choose when higher voltage margin is required and thermal budget allows larger footprint

Compared with BCP54TA, the BCP54E6327HTSA1 offers identical performance in a smaller SOT-223 footprint and tighter reel packaging; versus MJD112G, it trades voltage headroom for superior thermal density and board-area efficiency in 12–24 V systems.

Availability

BCP54E6327HTSA1 is available at Aetrix Electronics and suitable for audio power amplifiers, automotive body electronics, DC motor drivers, and industrial sensor interfaces requiring stable component supply and AEC-Q101-compliant reliability.

Supply support for BCP54E6327HTSA1 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.

The BCP54E6327HTSA1 belongs to Infineon's BCP54–BCP56 family of AEC-Q101-qualified NPN/PNP transistors engineered for robust, thermally efficient audio and automotive switching applications.

FAQ

Is BCP54E6327HTSA1 pin-compatible with BCP54TA?

Yes - both share identical SOT-223 pinout (Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter, Pin 4 = Collector), same die, and identical electrical specifications. The only differences are packaging quantity (1000 vs. 3000 per reel) and date-code marking convention; no PCB or schematic changes are needed for substitution.

What is the maximum allowable case temperature for continuous 2 W operation?

The datasheet specifies P_tot = 2 W at T_S ≤ 120 °C. Exceeding 120 °C case temperature reduces allowable power linearly; at 150 °C case, derating requires P_tot ≤ 0 W. Thermal design must ensure solder-point temperature stays at or below 120 °C under worst-case ambient and airflow conditions.

Can BCP54E6327HTSA1 replace BC847 in a small-signal amplifier?

No - BC847 is a low-current (100 mA I_C) general-purpose transistor in SOT-23. BCP54E6327HTSA1 is a 1 A power transistor in SOT-223 with different gain profile, saturation behavior, and thermal mass. Substitution would risk overdrive, instability, or thermal runaway due to mismatched biasing and layout requirements.

Does this part support pulse operation beyond its DC ratings?

Yes - the datasheet defines permissible pulse load curves showing P_tot(max)/P_tot(DC) ratios up to 10× for pulse widths ≤100 µs (D < 2%). At t_p = 10 µs, peak power can reach 20 W with appropriate duty cycle control and thermal averaging, provided junction temperature remains ≤150 °C.

BCP54E6327HTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 50mA, 500mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 40 @ 150mA, 2V

Power - Max:: 2 W

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT223-4

BCP54E6327HTSA1 FAQ

1.How can I place an order for BCP54E6327HTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP54E6327HTSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BCP54E6327HTSA1 reliable?

The price and inventory of BCP54E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP54E6327HTSA1 is usually 5 days.

3.What payment methods are accepted for BCP54E6327HTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP54E6327HTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP54E6327HTSA1?

BCP54E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP54E6327HTSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BCP54E6327HTSA1?

For technical support, including BCP54E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP54E6327HTSA1 requirements.

6.How does Aetrix verify that BCP54E6327HTSA1 is sourced from the original manufacturer or authorized distributors?

All BCP54E6327HTSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BCP54E6327HTSA1 meets industry standards.

7.What is the process for return or replacement of BCP54E6327HTSA1?

All BCP54E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BCP54E6327HTSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BCP54E6327HTSA1 part is unused and in its original packaging.

Return procedure for BCP54E6327HTSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…