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

Nexperia USA Inc. BCV47,215

Name: BCV47,215
Brand: Nexperia USA Inc.
SKU: BCV47,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCV47,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCV47,215.pdf

Description:: TRANS NPN DARL 60V 0.5A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCV47 from Nexperia is an NPN Darlington transistor in SOT23 (TO-236AB) package, delivering high DC current gain (min 2000 at IC = 500 mA), 60 V V_CE_S, and 500 mA continuous collector current. It serves as a low-noise preamplifier input stage in analog signal chains where high input impedance and current amplification are critical.

For engineers reviewing the BCV47 datasheet, BCV47 pinout, BCV47 application, or BCV47 equivalent, key selection criteria include verified Darlington architecture, SOT23 thermal resistance (500 K/W), guaranteed h_FE ≥2000 at full rated current, and compatibility with standard FR4 PCB reflow footprints.

Technical Context

The BCV47 integrates two cascaded NPN transistors in a monolithic Darlington configuration, enabling ultra-high current gain while maintaining single-package simplicity. Its base-emitter turn-on voltage (V_BEon ≤1.4 V at IC = 10 mA) and saturation characteristics (V_CEsat ≤1 V at IC = 100 mA, IB = 1 mA) support efficient low-voltage switching and linear amplification.

Designed for ambient temperatures from –65 °C to +150 °C and junction-limited operation up to 150 °C, it features low leakage (ICES ≤100 nA at V_CE = 60 V) and robust breakdown ratings: V_CBO = 80 V, V_CEO = 60 V, V_EBO = 10 V - confirming suitability for medium-voltage interface and driver stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CE_S	60 V - Maximum safe collector-emitter voltage with base shorted to emitter; defines upper rail limit in switch/driver applications.
h_FE	≥2000 at IC = 500 mA - Ensures minimal base drive current (e.g., ~250 µA) for full-load switching, reducing upstream driver burden.
I_C	500 mA continuous - Supports medium-power loads such as relay coils, LED arrays, or sensor bias networks without heatsinking.
R_th(j-a)	500 K/W - Thermal resistance on standard FR4 PCB; implies ~125 °C junction rise at 250 mW dissipation, limiting sustained power use.
V_BEon	≤1.4 V at IC = 10 mA - Enables reliable turn-on from 1.8–3.3 V logic or low-dropout regulators in battery-powered systems.
V_CEsat	≤1 V at IC = 100 mA / IB = 1 mA - Minimizes conduction loss in saturated-switching roles, improving efficiency in discrete driver circuits.

Pinout & Package

BCV47 uses the industry-standard SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body, optimized for automated placement and reflow soldering on FR4 PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Input control terminal; requires current-limited drive due to Darlington's high h_FE and internal base resistor absence.
2	Emitter (E)	Common reference node; connected to ground or low-side return path; carries full load current.
3	Collector (C)	Output terminal; connects to load and supply rail; must observe V_CE_S = 60 V and I_C = 500 mA limits.

Key Features

Feature	Design Value
High DC current gain	h_FE ≥2000 at IC = 500 mA - Reduces required base drive by >10× vs. standard NPN, simplifying microcontroller GPIO interfacing.
Medium-voltage capability	V_CE_S = 60 V - Supports 24 V industrial control rails and 48 V telecom interfaces without derating.
Low saturation voltage	V_CEsat ≤1 V at 100 mA - Limits power loss to <100 mW in switching mode, easing thermal management on compact PCBs.
Standard SOT23 footprint	Compatible with IPC-7351B SOT-23-3 land pattern - Enables drop-in replacement and reuse of existing pick-and-place and reflow profiles.

Applications

Audio Preamplifier Stage

Industrial Sensor Interface

Use Scenario: Amplifying weak signals from electret microphones or piezoelectric sensors before ADC sampling.

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

Use Value: h_FE ≥10000 at 100 mA enables stable gain without external feedback resistors, minimizing component count in space-constrained audio modules.

Use Scenario: Conditioning analog outputs from RTD or thermistor-based temperature sensors in PLC input modules.

IC Role / Device Role / Timing Role: Current-source driver providing precise, temperature-stable bias current to sensor bridges.

Use Value: Tight V_BEon tolerance (≤1.4 V) and low ICBO (≤100 nA) ensure stable bias over –40 °C to +85 °C operating range.

Relay Driver Circuit

LED Array Switch

Use Scenario: Driving 24 VDC coil relays in building automation controllers with 3.3 V MCU GPIO.

IC Role / Device Role / Timing Role: Saturated-switch Darlington providing galvanic isolation and current gain between logic and inductive load.

Use Value: V_CEsat ≤1 V at 100 mA reduces coil power loss by >30% vs. conventional NPN, extending relay lifetime and reducing heat buildup.

Use Scenario: Switching multi-segment status LEDs (e.g., 5 × 20 mA strings) in network equipment front panels.

IC Role / Device Role / Timing Role: Low-side constant-current switch controlling parallel LED branches via shared emitter return.

Use Value: 500 mA I_C rating supports up to 25 LEDs simultaneously; SOT23 footprint allows dense layout without thermal vias.

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	PNP complement; identical SOT23 package and gain specs but opposite polarity.	Required only in complementary push-pull or level-shifting topologies - not a direct functional substitute.	Select when designing symmetrical output stages or dual-rail bias networks requiring matched PNP/NPN pairs.
MMDT3904	Single NPN (not Darlington); h_FE = 100–300 at 10 mA; V_CE_S = 40 V; I_C = 200 mA.	Lacks Darlington gain - demands higher base drive and cannot replicate BCV47's 500 mA/60 V capability.	Use only if lower current (<200 mA), lower voltage (<40 V), and reduced gain sufficiency are acceptable in cost-sensitive designs.

Compared with BCV26 and MMDT3904, BCV47 uniquely delivers 500 mA switching capability with ≥2000 h_FE in SOT23 - making it the sole choice among these three for medium-power, low-drive, high-gain NPN Darlington applications.

Availability

BCV47 is available at Aetrix Electronics and suitable for industrial sensor interfaces, relay drivers, LED array switches, and audio preamplifier stages requiring stable component supply and long-term obsolescence management.

Supply support for BCV47 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 essential semiconductors - including logic, discretes, MOSFETs, and ESD protection devices.

The BCV47 belongs to Nexperia's general-purpose bipolar transistor product line, engineered specifically for cost-effective, high-gain amplification and switching in industrial, consumer, and communication equipment.

FAQ

Is BCV47 automotive-qualified?

No. Per Nexperia's 2022 revision history, BCV47 is explicitly designated as non-automotive qualified. It lacks AEC-Q101 stress testing and is not warranted for safety-critical vehicle systems. Automotive alternatives must be selected from Nexperia's dedicated automotive-Q portfolio.

What is the maximum allowable power dissipation at 70 °C ambient?

At T_amb = 70 °C, derated power dissipation is 150 mW. This is calculated using P_tot = 250 mW at 25 °C and R_th(j-a) = 500 K/W: ΔT = 70 − 25 = 45 K → P = (150 K − 45 K) / 500 K/W = 150 mW. Exceeding this risks junction temperature exceeding 150 °C.

Can BCV47 replace BC547 in existing designs?

No - BCV47 is not a drop-in replacement for BC547. It has 10× higher h_FE, different saturation behavior (V_CEsat ≤1 V vs. ~0.2 V), and higher V_CE_S. Substitution may cause unintended bias shifts, oscillation, or excessive base current draw unless circuit topology and biasing are re-optimized.

Does BCV47 include built-in base-emitter resistors?

No. BCV47 is a bare Darlington pair with no integrated base resistors. External base current limiting is mandatory - typically a series resistor sized to deliver 250–500 µA at the driving voltage to ensure saturation at 500 mA collector current.

BCV47,215 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):: 60 V

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

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 10000 @ 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

BCV47,215 FAQ

1.How can I place an order for BCV47,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BCV47,215 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 BCV47,215 reliable?

The price and inventory of BCV47,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV47,215 is usually 5 days.

3.What payment methods are accepted for BCV47,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV47,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCV47,215?

BCV47,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCV47,215 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 BCV47,215?

For technical support, including BCV47,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV47,215 requirements.

6.How does Aetrix verify that BCV47,215 is sourced from the original manufacturer or authorized distributors?

All BCV47,215 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 BCV47,215 meets industry standards.

7.What is the process for return or replacement of BCV47,215?

All BCV47,215 units undergo pre-shipment inspection (PSI). If there is an issue with BCV47,215, 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 BCV47,215 part is unused and in its original packaging.

Return procedure for BCV47,215:

1.Submit a request within 90 days.

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

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