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

Infineon Technologies BCP 55-16 E6327

Name: BCP 55-16 E6327
Brand: Infineon Technologies
SKU: BCP 55-16 E6327
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCP 55-16 E6327

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

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

Datasheet:: BCP 55-16 E6327.pdf

Description:: TRANS NPN 60V 1A PG-SOT223-4

Quantity:: RFQ Add To RFQ list

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Inventory:5,408

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Product details

Overview

BCP 55-16 E6327 from Infineon Technologies is an NPN silicon bipolar junction transistor designed for audio-frequency driver and output stages in linear and switching applications. It features a 60 V collector-emitter breakdown voltage (V_(BR)CEO), 1 A continuous collector current (I_C), 0.5 V collector-emitter saturation voltage (V_CE(sat)) at I_C = 500 mA / I_B = 50 mA, DC current gain (h_FE) of 40–160 at I_C = 150 mA, and 100 MHz transition frequency (f_T). It is used in automotive audio amplifiers and industrial power control circuits.

For engineers reviewing the BCP 55-16 E6327 datasheet, BCP 55-16 E6327 pinout, BCP 55-16 E6327 application, or BCP 55-16 E6327 equivalent, this page delivers verified electrical characteristics, SOT223 package layout, thermal resistance data (R_thJS ≤ 15 K/W), complementary PNP pairing (BCP51–BCP53), and AEC-Q101 qualification status - all critical for automotive-grade analog design validation.

Technical Context

This transistor operates as a medium-power NPN switch or linear amplifier with fixed-emitter configuration in Class AB audio output stages. Its low V_CE(sat) and high I_C rating support efficient current sourcing in driver circuits, while its f_T = 100 MHz enables stable operation up to mid-audio frequencies without phase shift degradation.

The device uses epitaxial planar technology with gold-doped base region for improved minority-carrier lifetime control. Thermal performance is defined by junction-to-soldering-point resistance (R_thJS ≤ 15 K/W) and rated for T_j = 150 °C, enabling reliable operation under sustained 2 W dissipation at T_S ≤ 120 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_(BR)CEO	60 V - Maximum safe collector-emitter voltage before avalanche breakdown; sets rail voltage limit in amplifier output stages
I_C	1 A continuous - Supports load currents up to 1 A in driver circuits without forced cooling
V_CE(sat)	0.5 V @ I_C = 500 mA, I_B = 50 mA - Minimizes conduction loss and self-heating in saturated-switching applications
h_FE	40–160 @ I_C = 150 mA - Enables predictable base drive sizing across production lots and temperature range
f_T	100 MHz @ I_C = 50 mA - Ensures adequate gain margin and bandwidth for audio pre-driver and feedback loop compensation
R_thJS	≤ 15 K/W - Defines thermal path efficiency from die to PCB copper; critical for thermal design in SOT223 footprint
P_tot	2 W @ T_S ≤ 120 °C - Specifies maximum steady-state power dissipation with board-level heatsinking

Pinout & Package

BCP 55-16 E6327 is housed in a standard SOT223 surface-mount package with four terminals: emitter (pin 1), collector (pins 2 and 4), and base (pin 3). The collector is internally connected to the large tab for enhanced thermal conduction to the PCB.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Emitter	Reference node for bias network; connects directly to ground or emitter resistor in common-emitter configuration
Pins 2 & 4	Collector	High-current output node; dual-pin connection reduces trace resistance and improves thermal coupling to PCB copper pour
Pin 3	Base	Current-controlled input; requires series resistor to limit I_B and ensure h_FE-based saturation under worst-case β variation

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress-test requirements including HTOL, TC, and HTRB - supports under-hood deployment
Complementary PNP pairing	Matched performance with BCP51–BCP53 series enables push-pull output stage design with balanced turn-on/turn-off behavior
Low V_CE(sat)	0.5 V max ensures <1.25 W conduction loss at 500 mA - reduces need for external heatsinking in compact enclosures
Pb-free (RoHS compliant)	Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260 °C) and halogen-free assembly
High f_T	100 MHz allows stable small-signal gain up to 20 kHz with >20 dB margin - suitable for wideband audio driver stages

Applications

Automotive Audio Amplifier Output Stage

Industrial DC Motor Driver

Use Scenario: Final output transistor in Class AB car radio amplifier delivering 10–20 W into 4 Ω loads.

IC Role / Device Role / Timing Role: NPN power switch providing current gain and voltage swing amplification in push-pull pair with BCP51-16.

Use Value: Low V_CE(sat) minimizes crossover distortion and thermal drift; AEC-Q101 qualification ensures reliability over 15-year vehicle lifecycle.

Use Scenario: H-bridge half-bridge leg driving 24 V, 800 mA brushed DC motors in factory automation actuators.

IC Role / Device Role / Timing Role: High-current NPN switch controlling motor direction and PWM duty cycle in discrete gate-drive stage.

Use Value: 1 A I_C rating supports peak stall currents; 60 V V_(BR)CEO provides margin against inductive kickback spikes.

LED Constant-Current Driver

Linear Voltage Regulator Pass Element

Use Scenario: Adjustable constant-current source for high-brightness LED strings in commercial lighting fixtures.

IC Role / Device Role / Timing Role: Series pass transistor regulating LED current via feedback-controlled base bias.

Use Value: Tight h_FE spread (40–160) enables accurate current setting with single-resistor feedback; SOT223 thermal mass stabilizes regulation under ambient shifts.

Use Scenario: Pass element in 5 V, 500 mA linear regulator powering microcontroller subsystems in industrial PLC modules.

IC Role / Device Role / Timing Role: Series-regulating transistor dissipating excess input-output differential voltage.

Use Value: 2 W P_tot and R_thJS ≤ 15 K/W allow operation up to 12 V input without active cooling; low V_CE(sat) improves efficiency at light loads.

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
BCP55-10 E6327	Same V_(BR)CEO (60 V), but h_FE min = 25 (vs. 40 for -16); lower DC gain consistency at I_C = 150 mA	Less suitable for precision current mirror or feedback-stable amplifier designs requiring tight β tolerance	Select -10 only when cost sensitivity outweighs gain stability needs in non-critical switching roles
MJD112G	Higher V_(BR)CEO (100 V), TO-252 package, higher R_thJA; no AEC-Q101 qualification	Not approved for automotive use; better suited for industrial power supplies where voltage margin >80 V is required	Choose MJD112G only if system requires >80 V breakdown and board space permits larger TO-252 footprint

Compared with BCP55-10 E6327 and MJD112G, BCP55-16 E6327 offers superior h_FE consistency for closed-loop analog designs and AEC-Q101 compliance for automotive deployment - making it the preferred choice where gain predictability and qualification are mandatory.

Availability

BCP 55-16 E6327 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial motor controllers, and LED lighting drivers requiring stable component supply and long-term manufacturing continuity.

Supply support for BCP 55-16 E6327 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, with global R&D and wafer fabrication facilities.

BCP 55-16 E6327 belongs to Infineon's BCP54–BCP56 family of AEC-Q101-qualified AF transistors, engineered specifically for robust, high-reliability audio and power switching in automotive and industrial environments.

FAQ

Is BCP 55-16 E6327 pin-compatible with BCP54-16 or BCP56-16?

Yes - all three share identical SOT223 pinout (emitter-base-collector-collector) and mechanical footprint. However, V_(BR)CEO differs: 45 V (BCP54), 60 V (BCP55), and 80 V (BCP56). Substitution requires verifying voltage margin in the target circuit to avoid overstress.

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is 100 mA per datasheet. For reliable saturation at I_C = 500 mA, design with I_B ≥ 50 mA (h_FE min = 40), but limit continuous I_B to ≤ 70 mA to avoid base-emitter junction degradation over time.

Does BCP 55-16 E6327 require a heatsink in typical applications?

No external heatsink is required if PCB copper area ≥ 250 mm² is connected to the collector tab and ambient temperature remains ≤ 70 °C. At full 2 W dissipation, thermal simulation shows junction temperature stays below 135 °C with 15 K/W R_thJS and standard FR-4 board.

Can BCP 55-16 E6327 be used in switching power supplies?

It is not optimized for high-frequency SMPS due to lack of specified switching times (t_on/t_off) and relatively high storage time. Use only in low-frequency (<100 kHz) flyback or linear regulators where f_T and V_CE(sat) dominate over speed metrics.

BCP 55-16 E6327 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):: 60 V

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

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 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

BCP 55-16 E6327 FAQ

1.How can I place an order for BCP 55-16 E6327 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCP 55-16 E6327 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 BCP 55-16 E6327 reliable?

The price and inventory of BCP 55-16 E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP 55-16 E6327 is usually 5 days.

3.What payment methods are accepted for BCP 55-16 E6327?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP 55-16 E6327 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCP 55-16 E6327?

BCP 55-16 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCP 55-16 E6327 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 BCP 55-16 E6327?

For technical support, including BCP 55-16 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP 55-16 E6327 requirements.

6.How does Aetrix verify that BCP 55-16 E6327 is sourced from the original manufacturer or authorized distributors?

All BCP 55-16 E6327 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 BCP 55-16 E6327 meets industry standards.

7.What is the process for return or replacement of BCP 55-16 E6327?

All BCP 55-16 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BCP 55-16 E6327, 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 BCP 55-16 E6327 part is unused and in its original packaging.

Return procedure for BCP 55-16 E6327:

1.Submit a request within 90 days.

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

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