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

Infineon Technologies BCV 28 E6327

Name: BCV 28 E6327
Brand: Infineon Technologies
SKU: BCV 28 E6327
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCV 28 E6327

Manufacturer:: Infineon Technologies

Category:: Single Bipolar Transistors

Package:: TO-243AA

Datasheet:: BCV 28 E6327.pdf

Description:: TRANS PNP DARL 30V 0.5A PG-SOT89

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCV28 E6327 from Infineon Technologies is a PNP silicon Darlington transistor in SOT-89 package, rated for 30 V V_CEO, 500 mA continuous collector current, and minimum DC current gain (h_FE) of 4000 at 10 µA I_C. It delivers high-current amplification with low base drive requirements and is used in automotive lighting control, relay drivers, and linear power regulation stages.

For engineers reviewing the BCV28 E6327 datasheet, BCV28 E6327 pinout, BCV28 E6327 application, or BCV28 E6327 equivalent, key selection criteria include its Darlington configuration, V_CEO/V_CBO ratings, thermal resistance (R_thJS ≤ 20 K/W), and guaranteed h_FE across multiple I_C operating points - critical for stable biasing in low-power switching and analog amplification circuits.

Technical Context

The BCV28 E6327 integrates two cascaded PNP transistors in a monolithic Darlington pair, enabling ultra-high current gain (up to 20,000) with single-base control. Its structure supports low saturation voltage (V_CEsat ≤ 1 V at I_C = 100 mA, I_B = 0.1 mA) and exhibits f_T = 200 MHz under 50 mA/5 V conditions, confirming suitability for medium-frequency switching.

Thermal design is supported by R_thJS ≤ 20 K/W and a maximum junction temperature of 150 °C. The device complies with AEC-Q101 stress testing and RoHS, confirming robustness for automotive ambient environments up to 125 °C case temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	30 V - Maximum safe collector-emitter voltage before breakdown in open-base condition
I_C (continuous)	500 mA - Continuous collector current rating at T_S ≤ 130 °C, defining usable load-driving capacity
h_FE min	4000 @ I_C = 10 µA - Ensures reliable turn-on with microampere-level base drive in high-impedance control circuits
V_CEsat max	1 V @ I_C = 100 mA, I_B = 0.1 mA - Limits conduction loss and self-heating in saturated-switch applications
f_T	200 MHz @ I_C = 50 mA, V_CE = 5 V - Validates usable bandwidth for PWM-driven loads up to ~20 MHz fundamental frequency
R_thJS	≤ 20 K/W - Enables direct thermal modeling from junction to solder point without heatsink assumptions
V_EB0	10 V - Maximum reverse emitter-base voltage before leakage rise, critical for bidirectional signal interface protection

Pinout & Package

SOT-89 package: 3-pin surface-mount plastic package with exposed thermal pad (pin 2 connected to collector tab), optimized for power dissipation in space-constrained PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input node; requires minimal current (≤100 µA typical for full turn-on) due to Darlington gain
2	Collector (C)	Main current output terminal; electrically tied to exposed metal tab for thermal conduction and mechanical anchoring
3	Emitter (E)	Current return path; referenced to system ground or negative rail in high-side switch configurations

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22
Pb-free / RoHS compliant	Meets EU Directive 2011/65/EU; no lead in die attach, plating, or molding compound
Darlington architecture	Two-stage PNP cascade delivering h_FE ≥ 4000 at low I_C, reducing base driver complexity
High V_CBO = 40 V	Supports operation with inductive kickback up to 40 V without clamping diodes in relay coil drivers

Applications

Automotive LED Headlamp Dimming

Industrial Relay Driver

Use Scenario: PWM-controlled current regulation for 12 V automotive LED arrays requiring smooth dimming without audible noise.

IC Role / Device Role / Timing Role: High-gain Darlington switch providing low-loss, low-EMI current sourcing from battery rail to LED anode.

Use Value: V_CEsat ≤ 1 V minimizes power loss at 350 mA, while h_FE ≥ 4000 allows MCU GPIO direct drive without external buffer.

Use Scenario: Driving 24 VDC industrial relays with coil resistance 200 Ω, requiring 120 mA hold current and surge tolerance.

IC Role / Device Role / Timing Role: High-current saturated switch interfacing PLC outputs to relay coils, handling inductive flyback via inherent V_CBO margin.

Use Value: 40 V V_CBO rating absorbs 30–35 V flyback spikes without snubber, reducing BOM count and board area.

Linear Voltage Regulator Pass Element

Low-Power Audio Preamp Stage

Use Scenario: Series pass transistor in 5 V/300 mA adjustable LDO for infotainment subsystems with tight ripple specs.

IC Role / Device Role / Timing Role: Current-amplifying element controlled by error amplifier, operating in active region with fixed V_CE.

Use Value: High h_FE ensures stable loop gain across temperature, reducing need for compensation capacitance.

Use Scenario: Input stage for microphone preamplifier in telematics module, amplifying 10 mV signals with minimal noise.

IC Role / Device Role / Timing Role: Low-noise, high-β PNP amplifier biased at 10 µA I_C to maximize h_FE and minimize base current noise.

Use Value: h_FE ≥ 4000 at 10 µA enables >60 dB voltage gain with <1 nV/√Hz input-referred noise.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP Darlington transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCV29 E6327	NPN complementary type; identical SOT-89 package, same V_CEO/I_C ratings but opposite polarity	Used where NPN logic-level drive or low-side switching is required instead of high-side PNP	Select when circuit topology mandates emitter-follower or grounded-emitter NPN configuration
ZTX951	Higher V_CEO = 60 V, lower h_FE = 1000 min, TO-92 package - no thermal pad, higher R_thJA	Suitable for non-automotive, lower-power applications where footprint and thermal performance are less critical	Choose only if SOT-89 thermal advantage is unnecessary and through-hole assembly is preferred

Compared with BCV29 E6327, the BCV28 E6327 provides complementary high-side switching capability; versus ZTX951, it offers superior thermal management and automotive qualification - making it the only option for AEC-Q101-compliant, surface-mount, high-gain PNP Darlington use cases.

Availability

BCV28 E6327 is available at Aetrix Electronics and suitable for automotive lighting control, industrial relay driving, linear regulator pass elements, and low-noise audio preamplifier stages requiring stable component supply and long-term lifecycle support.

Supply support for BCV28 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 and discrete devices.

The BCV28 E6327 belongs to Infineon's BCV-series bipolar transistor family, designed specifically for AEC-Q101-compliant, high-reliability automotive signal and power switching applications in harsh thermal and electrical environments.

FAQ

What is the maximum allowable junction temperature for BCV28 E6327?

The absolute maximum junction temperature (T_j) is 150 °C, as specified in the Infineon datasheet. Operation above this limit risks permanent degradation of the Darlington structure. Derating is required above T_S = 130 °C, where total power dissipation drops linearly to zero at 150 °C junction temperature.

Can BCV28 E6327 be used as a direct replacement for BCV48 E6327?

No - BCV28 E6327 has V_CEO = 30 V and V_CBO = 40 V, while BCV48 E6327 is rated for 60 V and 80 V respectively. Substituting BCV28 in a BCV48-design risks premature breakdown under higher voltage transients, especially in inductive load switching.

Does BCV28 E6327 require a base resistor when driven by a 3.3 V MCU GPIO?

Yes - a series base resistor is mandatory to limit I_B and prevent excessive power dissipation in the base-emitter junction. For 3.3 V drive with V_BEsat ≈ 1.5 V, a 10 kΩ resistor limits I_B to ~180 µA, sufficient to saturate the device at I_C ≤ 300 mA per h_FE curves.

Is the exposed collector tab on the SOT-89 package electrically isolated?

No - pin 2 (collector) is internally bonded to the exposed metal tab. This tab must be connected to the collector net on the PCB and may serve as a thermal path; it must not be shorted to ground or other potentials unless the collector is at that potential.

BCV 28 E6327 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-243AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP - Darlington

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 1V @ 100µA, 100mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 20000 @ 100mA, 5V

Power - Max:: 1 W

Frequency - Transition:: 200MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SOT89

BCV 28 E6327 FAQ

1.How can I place an order for BCV 28 E6327 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCV 28 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 BCV 28 E6327 reliable?

The price and inventory of BCV 28 E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV 28 E6327 is usually 5 days.

3.What payment methods are accepted for BCV 28 E6327?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV 28 E6327 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCV 28 E6327?

BCV 28 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCV 28 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 BCV 28 E6327?

For technical support, including BCV 28 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV 28 E6327 requirements.

6.How does Aetrix verify that BCV 28 E6327 is sourced from the original manufacturer or authorized distributors?

All BCV 28 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 BCV 28 E6327 meets industry standards.

7.What is the process for return or replacement of BCV 28 E6327?

All BCV 28 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BCV 28 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 BCV 28 E6327 part is unused and in its original packaging.

Return procedure for BCV 28 E6327:

1.Submit a request within 90 days.

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

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