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

Nexperia USA Inc. BCV27,215

Name: BCV27,215
Brand: Nexperia USA Inc.
SKU: BCV27,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCV27,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BCV27,215.pdf

Description:: TRANS NPN DARL 30V 0.5A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCV27,215 from Nexperia is an NPN Darlington transistor in SOT23 package, delivering high DC current gain (min 4000 at IC = 500 mA), 30 V V_CE_S, and 500 mA continuous collector current. It serves as a medium-current preamplifier stage in low-voltage analog signal chains where high input impedance and low base drive are critical.

For engineers reviewing the BCV27,215 datasheet, BCV27,215 pinout, BCV27,215 application, or BCV27,215 equivalent, key selection criteria include verified Darlington h_FE performance across 1–500 mA, thermal resistance (500 K/W on FR4), SOT23 footprint compatibility, and PNP complement BCV26 availability for push-pull designs.

Technical Context

The BCV27,215 integrates two cascaded NPN transistors in a monolithic Darlington configuration, enabling single-package current amplification with minimal base drive. Its architecture delivers h_FE ≥ 4000 at 500 mA and ≥ 20,000 at 100 mA, while maintaining V_CE_SAT ≤ 1 V under rated load.

Designed for surface-mount operation on standard FR4 PCBs, it operates within −65 °C to +150 °C ambient range and exhibits I_CBO, I_CES, and I_EBO ≤ 100 nA - supporting stable biasing in precision preamp nodes. Thermal resistance R_th(j-a) = 500 K/W reflects its reliance on PCB copper for heat dissipation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CE_S	30 V - Maximum safe collector-emitter voltage with base shorted to emitter; defines upper rail limit for low-voltage amplifier stages.
I_C	500 mA continuous - Sustained output current capability; supports medium-power sensor buffering or driver interface without forced cooling.
h_FE	Min 4000 at V_CE = 5 V, I_C = 500 mA - Enables microamp-level base drive for high-current loads, reducing upstream driver burden.
V_CE_SAT	≤ 1 V - Low saturation voltage preserves headroom in single-supply preamplifier rails and minimizes power loss at full load.
R_th(j-a)	500 K/W - Junction-to-ambient thermal resistance on standard FR4 PCB; requires adequate copper area for >100 mW dissipation.
V_EB_O	10 V - Maximum reverse emitter-base voltage; constrains negative input swing in AC-coupled configurations.

Pinout & Package

SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. Standard footprint per Fig. 3 (reflow) and Fig. 4 (wave) in datasheet v.4.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Control input node; accepts low-current drive (e.g., <100 µA) to switch 500 mA collector load due to Darlington gain.
2	Emitter (E)	Common reference terminal; connected to ground or negative rail; carries full load current and sets V_BE_sat ≈ 1.4–1.5 V.
3	Collector (C)	Output node; sinks up to 500 mA; voltage swing limited by V_CE_S = 30 V and V_CE_SAT ≤ 1 V.

Key Features

Feature	Design Value
High DC current gain	h_FE ≥ 4000 at 500 mA enables direct drive of moderate loads from microcontroller GPIO or op-amp outputs.
Low saturation voltage	V_CE_SAT ≤ 1 V preserves >90% of supply rail in 3.3 V or 5 V systems when fully on.
SOT23 footprint	Standardized 3-pin SMD outline ensures drop-in replacement compatibility and automated assembly support.
Thermal robustness	150 °C max junction temperature and −65 °C min storage temperature support industrial and extended-temperature deployments.

Applications

Audio Preamp Stage

Sensor Signal Amplification

Use Scenario: Boosting weak microphone or piezoelectric sensor signals before ADC sampling in portable audio devices.

IC Role / Device Role / Timing Role: NPN Darlington configured as common-emitter voltage amplifier with high input impedance and low noise contribution.

Use Value: h_FE ≥ 20,000 at 10 mA allows sub-µA base current, minimizing loading on high-Z sources and preserving SNR.

Use Scenario: Conditioning low-level analog outputs from thermistors, strain gauges, or photodiodes in battery-powered IoT nodes.

IC Role / Device Role / Timing Role: Current buffer and level shifter between sensor front-end and rail-to-rail op-amp input stage.

Use Value: V_CE_SAT ≤ 1 V ensures >2.3 V headroom on 3.3 V supply, enabling full-scale ADC utilization without clipping.

LED Driver Interface

Relay/Small Solenoid Control

Use Scenario: Driving multi-LED strings (e.g., status indicators or backlight segments) from low-power MCU pins.

IC Role / Device Role / Timing Role: Switching element in saturated common-emitter configuration with current-limiting resistor.

Use Value: 500 mA I_C rating supports up to 20× 25 mA LEDs in parallel; SOT23 size fits space-constrained UI boards.

Use Scenario: Activating 12 V/100 mA electromechanical relays or miniature solenoids in industrial control modules.

IC Role / Device Role / Timing Role: Low-side switch with flyback diode protection, driven directly from logic-level outputs.

Use Value: V_CE_S = 30 V accommodates 12 V relay coils with margin; I_CM = 800 mA handles inrush currents safely.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCV26,215	PNP complement; identical SOT23 package, same h_FE and voltage ratings but opposite polarity.	Required for complementary push-pull output stages or high-side switching where NPN cannot be used.	Select when sourcing both polarities for balanced analog circuits or dual-rail drivers.
MMBT6427LT1G	Lower h_FE (min 2000 at 100 mA); higher V_CE_SAT (1.5 V typ); same SOT23 footprint and 30 V rating.	Suitable for less demanding gain requirements; less efficient at high current due to higher saturation loss.	Choose if cost sensitivity outweighs gain and efficiency needs, and design tolerates reduced h_FE margin.

Compared with BCV27,215, BCV26,215 provides matched PNP functionality for symmetrical designs, while MMBT6427LT1G trades gain and saturation performance for broader vendor availability - making BCV27,215 optimal where high h_FE and low V_CE_SAT are non-negotiable.

Availability

BCV27,215 is available at Aetrix Electronics and suitable for audio preamplifier stages, sensor signal conditioning, LED driver interfaces, and relay/solenoid control requiring stable component supply and consistent SOT23 assembly compatibility.

Supply support for BCV27,215 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive, industrial, and mobile applications.

The BCV27,215 belongs to Nexperia's general-purpose bipolar transistor family, engineered for cost-effective, space-efficient amplification and switching in consumer, industrial, and IoT edge electronics.

FAQ

What is the maximum continuous collector current for BCV27,215?

The BCV27,215 supports 500 mA continuous collector current (I_C) at T_amb ≤ 25 °C on standard FR4 PCB. Derating applies above 25 °C ambient; at 70 °C, usable I_C drops to ~300 mA based on its 250 mW P_tot and 500 K/W thermal resistance.

Is BCV27,215 automotive qualified?

No. Per Nexperia's revision history (v.4, 20241008), BCV27,215 is explicitly marked non-automotive qualified. It lacks AEC-Q101 stress testing and qualification documentation. For automotive use, consult Nexperia's BCV27-Q series or equivalent qualified alternatives.

How does BCV27,215 differ from standard NPN transistors like BC847?

BCV27,215 integrates two NPN transistors in Darlington configuration, delivering h_FE ≥ 4000 at 500 mA - over 20× higher than BC847's typical h_FE of 200. This enables ultra-low base drive but increases V_BE_sat to ~1.4 V and reduces switching speed compared to single-junction devices.

Can BCV27,215 replace BCV27 in legacy designs?

Yes. BCV27,215 is the current Nexperia orderable version of BCV27, using the same SOT23 package, pinout, and electrical specifications. The ",215" suffix denotes tape-and-reel packaging per ordering table; electrical behavior and thermal characteristics are identical to prior revisions.

BCV27,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN - 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:: 250 mW

Frequency - Transition:: 220MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BCV27,215 FAQ

1.How can I place an order for BCV27,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCV27,215 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 BCV27,215 reliable?

The price and inventory of BCV27,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV27,215 is usually 5 days.

3.What payment methods are accepted for BCV27,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV27,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCV27,215?

BCV27,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCV27,215 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 BCV27,215?

For technical support, including BCV27,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV27,215 requirements.

6.How does Aetrix verify that BCV27,215 is sourced from the original manufacturer or authorized distributors?

All BCV27,215 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 BCV27,215 meets industry standards.

7.What is the process for return or replacement of BCV27,215?

All BCV27,215 units undergo pre-shipment inspection (PSI). If there is an issue with BCV27,215, 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 BCV27,215 part is unused and in its original packaging.

Return procedure for BCV27,215:

1.Submit a request within 90 days.

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

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