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

Nexperia USA Inc. BCV46-QR

Name: BCV46-QR
Brand: Nexperia USA Inc.
SKU: BCV46-QR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BCV46-QR

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

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

Datasheet:: BCV46-QR.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BCV46-QR from Nexperia is a PNP Darlington transistor in SOT23 package, delivering high DC current gain (h_FE = 10,000 at I_C = −100 mA), −60 V V_CE_S, −500 mA continuous collector current, and AEC-Q101 qualification for automotive signal amplification and switching circuits.

For engineers reviewing the BCV46-QR datasheet, BCV46-QR pinout, BCV46-QR application, or BCV46-QR equivalent, this page provides verified electrical parameters, thermal resistance (R_th(j-a) = 500 K/W), saturation voltages (V_CEsat ≤ −1 V), and automotive-grade reliability data required for high-gain analog front-end and load control designs.

Technical Context

The BCV46-QR operates as a two-stage PNP Darlington pair with integrated base-emitter resistor network absent - requiring external base drive. Its high h_FE enables microampere-level base current to switch 100+ mA loads, while V_CE_S = −60 V and V_CBO = −80 V support operation in negative-rail bias configurations up to −60 V supply.

Thermal performance is defined for FR4 PCB mounting (single-sided copper, tin-plated), with P_tot = 250 mW at T_amb ≤ 25 °C and T_j max = 150 °C. Switching times (t_on = 425 ns, t_off = 1330 ns) reflect Darlington trade-off between gain and speed, optimized for AF amplification and slow-to-medium frequency switching.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CE_S	−60 V: Maximum safe collector-emitter voltage with base shorted to emitter - defines rail compatibility in negative-supply circuits
h_FE	10,000 at V_CE = −5 V, I_C = −100 mA: Enables <10 µA base drive for 100 mA load - reduces driver stage complexity
I_C	−500 mA continuous: Sustained output current capability under thermal limits - supports medium-power discrete switching
V_CEsat	≤ −1 V at I_C = −100 mA, I_B = −0.1 mA: Low saturation voltage minimizes power loss and heating in linear/switching modes
R_th(j-a)	500 K/W on FR4 PCB: Junction-to-ambient thermal resistance - determines temperature rise per watt dissipated in standard layout
f_T	10 MHz at V_CE = −5 V, I_C = −10 mA: Transition frequency sets usable bandwidth limit for small-signal amplification

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, designed for reflow/wave soldering per IPC-7351 standards.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Input control terminal - accepts low-current drive to enable high-current conduction between C and E
2	Emitter (E)	Common reference node for PNP operation - connected to higher potential (e.g., V_CC or chassis ground in negative-rail systems)
3	Collector (C)	Output current sink - delivers amplified load current to lower-potential node (e.g., ground or negative rail)

Key Features

Feature	Design Value
AEC-Q101 qualified	Stress-tested per automotive discrete semiconductor standard - validated for under-hood and infotainment module use
High h_FE (10,000)	Reduces base drive requirements by >10× vs. single PNP - simplifies microcontroller GPIO or op-amp interface design
−60 V V_CE_S	Supports operation in 48 V automotive systems and industrial −48 V telecom rails without derating
V_BEsat ≤ −1.5 V	Ensures predictable base drive voltage margin - avoids unintended turn-on due to noise or leakage in high-impedance bias networks

Applications

Automotive Door Module

Industrial Sensor Signal Amplifier

Use Scenario: Driving window lift motor relays and LED status indicators in door control units.

IC Role / Device Role / Timing Role: PNP Darlington switch providing high-current sinking capability for 12 V loads with minimal MCU GPIO loading.

Use Value: Eliminates need for external base resistors or driver ICs - reduces BOM count and PCB area in space-constrained modules.

Use Scenario: Amplifying low-level thermistor or strain gauge outputs in programmable logic controller (PLC) analog input stages.

IC Role / Device Role / Timing Role: High-gain current amplifier converting µA-level sensor currents into robust mA-level signals for ADC input conditioning.

Use Value: Achieves >80 dB gain with <1% nonlinearity at 1 kHz - improves resolution and SNR over single-transistor solutions.

Automotive HVAC Blower Control

Legacy Audio Front-End

Use Scenario: PWM-controlled blower motor driver in climate control systems using N-channel MOSFET gate pull-up.

IC Role / Device Role / Timing Role: High-side switch enabling fast MOSFET turn-off via active pull-down of gate node during PWM off-cycle.

Use Value: Reduces MOSFET switching losses by 35% vs. passive pull-down - extends motor driver efficiency and thermal margin.

Use Scenario: Pre-amplifier stage in AM/FM radio receivers and analog audio mixing circuits.

IC Role / Device Role / Timing Role: Low-noise, high-gain PNP amplifier operating in Class-A configuration for AF signal boosting before filtering.

Use Value: Delivers 2000–4000 h_FE at I_C = −1 to −10 mA - maintains linearity across 20 Hz–20 kHz band without distortion.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BCV47-Q	NPN complement with identical package, gain, and voltage ratings - not electrically interchangeable without circuit polarity reversal	Used where NPN topology required (e.g., low-side switching, common-emitter amplifiers with positive supply)	Select only when circuit topology mandates NPN configuration - requires full schematic review and bias network redesign
ZTX951	Higher V_CEO (−100 V), lower h_FE (2000–6000), TO-92 package - larger footprint and no AEC-Q101 qualification	Suitable for industrial power supplies and non-automotive instrumentation where higher breakdown is critical	Choose for >−60 V rail applications or legacy through-hole assembly - avoid in automotive or space-constrained SMT designs

Compared with BCV46-QR, BCV47-Q offers complementary polarity but zero pin or functional compatibility, while ZTX951 trades AEC-Q101 compliance and SMT fit for higher voltage headroom and through-hole serviceability - selection depends strictly on topology, qualification, and packaging constraints.

Availability

BCV46-QR is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor signal conditioners, HVAC blower controllers, and legacy audio front-ends requiring stable component supply and AEC-Q101-compliant discrete transistors.

Supply support for BCV46-QR 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 - supplying discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The BCV46-QR belongs to Nexperia's AEC-Q101-qualified discrete transistor portfolio, engineered specifically for automotive signal amplification and medium-current switching where high DC gain and proven reliability are mandatory.

FAQ

Is BCV46-QR pin-compatible with BCV46 or BCV46,115?

Yes - BCV46-QR uses the same SOT23 package and pinout (B-E-C) as BCV46 and BCV46,115. All share identical mechanical dimensions, thermal pad layout, and terminal assignment per Nexperia's standardized SOT23 outline. No PCB redesign is needed for drop-in replacement.

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is −100 mA (single pulse, t_p ≤ 1 ms). For continuous DC operation, base current must be limited to ensure junction temperature remains ≤ 150 °C - typical design practice restricts I_B to ≤ −1 mA at ambient ≤ 85 °C with standard FR4 layout.

Does BCV46-QR support PWM switching at 20 kHz?

Yes - with t_on = 425 ns and t_off = 1330 ns, BCV46-QR supports PWM frequencies up to ~100 kHz in low-duty-cycle applications. At 20 kHz, switching losses remain manageable (<5% of total dissipation) when driving resistive or inductive loads ≤ 100 mA with proper snubbing.

How does the AEC-Q101 qualification impact its use in non-automotive designs?

AEC-Q101 qualification ensures extended temperature operation (−65 °C to +150 °C), enhanced ESD robustness (HBM ≥ 2 kV), and accelerated lifetime testing - making BCV46-QR suitable for harsh industrial, outdoor, or high-reliability medical applications even outside automotive contexts.

BCV46-QR 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:: PNP - 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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 10000 @ 100mA, 5V

Power - Max:: 250 mW

Frequency - Transition:: -

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BCV46-QR FAQ

1.How can I place an order for BCV46-QR through Aetrix?

Please submit a Request for Quotation (RFQ) for BCV46-QR 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 BCV46-QR reliable?

The price and inventory of BCV46-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV46-QR is usually 5 days.

3.What payment methods are accepted for BCV46-QR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV46-QR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BCV46-QR?

BCV46-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BCV46-QR 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 BCV46-QR?

For technical support, including BCV46-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV46-QR requirements.

6.How does Aetrix verify that BCV46-QR is sourced from the original manufacturer or authorized distributors?

All BCV46-QR 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 BCV46-QR meets industry standards.

7.What is the process for return or replacement of BCV46-QR?

All BCV46-QR units undergo pre-shipment inspection (PSI). If there is an issue with BCV46-QR, 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 BCV46-QR part is unused and in its original packaging.

Return procedure for BCV46-QR:

1.Submit a request within 90 days.

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

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