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Nexperia USA Inc. BCV48-QX
- Part No.:
- BCV48-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCV48-QX.pdf
- Description:
- TRANS PNP DARL 60V 0.5A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:6,547
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Product details
Overview
BCV48-QX from Nexperia is a PNP Darlington transistor in SOT89 package, delivering minimum DC current gain of 10,000 at 100 mA, maximum collector current of 500 mA, and VCEO rating of −60 V. It is AEC-Q101 qualified and designed for high-gain switching and amplification in automotive body control modules, LED drivers, and relay drivers.
For engineers reviewing the BCV48-QX datasheet, BCV48-QX pinout, BCV48-QX application, or BCV48-QX equivalent, key selection criteria include guaranteed hFE ≥10,000 at IC = −100 mA, low VCE(sat) ≤ −1 V, thermal resistance Rth(j-sp) = 16 K/W, and automotive-grade reliability per AEC-Q101.
Technical Context
The BCV48-QX integrates two cascaded PNP transistors in a monolithic Darlington configuration, enabling ultra-high current amplification with single-base control. Its internal structure provides inherent current gain multiplication while maintaining defined saturation characteristics (VCE(sat) ≤ −1 V at IC = −100 mA, IB = −0.1 mA).
Designed for surface-mount operation on FR4 PCBs with 6 cm² collector pad, it achieves Rth(j-a) = 96 K/W in free air and Rth(j-sp) = 16 K/W to solder point-critical for thermally constrained automotive modules where power dissipation must remain below 1.3 W at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −60 V: Maximum safe collector-emitter voltage under open-base condition; enables use in 48 V automotive subsystems. |
| hFE (min) | 10000 at IC = −100 mA: Ensures robust drive capability for high-current loads like solenoids without external gain staging. |
| IC (max) | −500 mA continuous: Supports direct switching of medium-power loads such as fuel pump drivers or HVAC actuators. |
| VCE(sat) | ≤ −1 V at IC = −100 mA, IB = −0.1 mA: Minimizes conduction loss and self-heating in always-on control circuits. |
| Rth(j-sp) | 16 K/W: Enables predictable thermal coupling to PCB copper, simplifying thermal design for compact ECU layouts. |
| AEC-Q101 | Qualified: Confirmed reliability for automotive underhood applications including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 3-lead, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, with exposed collector tab for thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current exit node; internally connected to first transistor emitter and second transistor base; requires low-impedance return path. |
| 2 | Collector | Main current sink node; electrically and thermally tied to exposed metal tab; must be soldered to ≥6 cm² copper area. |
| 3 | Base | Control input for Darlington pair; high-impedance gate requiring minimal drive current (IB ≈ IC/10,000). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-high DC current gain | hFE ≥ 10,000 at IC = −100 mA eliminates need for multi-stage driver circuitry in space-constrained modules. |
| Automotive qualification | AEC-Q101 compliance ensures validated performance across −65 °C to +150 °C ambient and lifetime vibration/thermal stress profiles. |
| Low saturation voltage | VCE(sat) ≤ −1 V reduces power loss and thermal rise in always-on load control applications like seat motor hold circuits. |
| Thermally optimized package | SOT89 collector tab delivers Rth(j-sp) = 16 K/W, enabling reliable 1.3 W dissipation without heatsinks in standard PCB layouts. |
Applications
| Automotive Body Control Unit (BCU) | LED Headlamp Driver |
|---|---|
Use Scenario: Switching 12 V/24 V solenoid valves and window lift motors in centralized BCU modules. IC Role / Device Role / Timing Role: High-gain PNP Darlington switch providing logic-level compatible on/off control with minimal MCU GPIO loading. Use Value: Eliminates need for discrete driver stages, reducing BOM count and PCB area while maintaining <1 V dropout under 300 mA load. | Use Scenario: Constant-current dimming control for high-brightness LED arrays in adaptive front lighting systems. IC Role / Device Role / Timing Role: Linear current regulator stage operating in active region with feedback-controlled base bias. Use Value: Leverages stable hFE ≥ 4000 at IC = −10 mA to maintain ±3% current accuracy across temperature without op-amp compensation. |
| Relay Interface Circuit | Fuel Pump Control Module |
Use Scenario: Driving electromagnetic relays in engine management and chassis control subsystems. IC Role / Device Role / Timing Role: High-current interface between low-power microcontroller outputs and relay coils rated up to 500 mA. Use Value: Delivers guaranteed turn-on with ≤100 µA base drive, enabling direct connection to 3.3 V GPIO without level-shifting or buffer ICs. | Use Scenario: PWM-controlled fuel pump speed regulation in modern gasoline direct injection systems. IC Role / Device Role / Timing Role: Low-loss series pass element modulated at 1–10 kHz to regulate pump voltage and flow rate. Use Value: Maintains VCE(sat) ≤ −1 V at 400 mA, limiting conduction loss to <400 mW and avoiding thermal derating in sealed module enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCV49-Q | NPN complement; identical package, gain, and ratings but opposite polarity. | Requires inverted control logic and reversed supply topology; not drop-in replaceable. | Select only when NPN high-side switching or complementary pair design is required. |
| ZTX951 | Higher VCEO (−100 V), lower hFE (min 750), TO-92 package, no AEC-Q101 qualification. | Lacks automotive qualification and thermal performance; unsuitable for underhood deployment. | Consider only for non-automotive industrial prototypes where higher breakdown voltage outweighs qualification needs. |
Compared with BCV49-Q and ZTX951, the BCV48-QX uniquely combines AEC-Q101 qualification, SOT89 thermal efficiency, and guaranteed hFE ≥10,000-making it the sole option for production automotive modules requiring high-gain, high-reliability PNP switching in compact form factor.
Availability
BCV48-QX is available at Aetrix Electronics and suitable for automotive body electronics, LED driver modules, relay interface circuits, and fuel system control requiring stable component supply across extended product lifecycles.
Supply support for BCV48-QX 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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
The BCV48-QX belongs to Nexperia's AEC-Q101-qualified discrete transistor portfolio, engineered specifically for high-reliability automotive signal and power switching applications where gain stability and thermal robustness are critical.
FAQ
What is the maximum continuous collector current for BCV48-QX?
The BCV48-QX supports a maximum continuous collector current of −500 mA at Tamb ≤ 25 °C with proper PCB thermal management (6 cm² copper pad). Derating applies above 25 °C ambient per the Rth(j-a) = 96 K/W curve; at 85 °C ambient, max IC drops to approximately −320 mA to maintain Tj ≤ 150 °C.
Is BCV48-QX pin-compatible with BCV47 or BCV46?
No. BCV48-QX uses SOT89 (3-pin, collector-tab-down) packaging with pinout E-C-B (1-2-3), whereas BCV46/BCV47 are in SOT23 packages with different pin assignments and lower current ratings (−100 mA). Mechanical and electrical incompatibility prevents direct substitution.
Does BCV48-QX require a base resistor when driven by a 3.3 V microcontroller GPIO?
Yes. To ensure saturation at IC = −100 mA, a base current of ≥10 µA is needed (assuming hFE = 10,000). With 3.3 V GPIO and VBE(on) ≈ −1.4 V, a 180 kΩ pull-up resistor provides ~10.5 µA-verified in Nexperia's application note AN11276 for SOT89 Darlington drive networks.
Can BCV48-QX be used in linear regulator applications?
Yes-within specified limits. Its VCE(sat) ≤ −1 V and hFE stability support low-dropout linear regulation up to −500 mA, provided power dissipation stays ≤1.3 W and junction temperature remains ≤150 °C. Thermal design must account for Rth(j-sp) = 16 K/W to solder point and board copper area.
BCV48-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- 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 (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 10000 @ 100mA, 5V
- Power - Max:
- 1.3 W
- Frequency - Transition:
- 220MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCV48-QX FAQ
1.How can I place an order for BCV48-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCV48-QX 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 BCV48-QX reliable?
The price and inventory of BCV48-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCV48-QX is usually 5 days.
3.What payment methods are accepted for BCV48-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCV48-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCV48-QX?
BCV48-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCV48-QX 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 BCV48-QX?
For technical support, including BCV48-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCV48-QX requirements.
6.How does Aetrix verify that BCV48-QX is sourced from the original manufacturer or authorized distributors?
All BCV48-QX 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 BCV48-QX meets industry standards.
7.What is the process for return or replacement of BCV48-QX?
All BCV48-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCV48-QX, 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 BCV48-QX part is unused and in its original packaging.
Return procedure for BCV48-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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