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Nexperia USA Inc. BCP54-16-QX
- Part No.:
- BCP54-16-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP54-16-QX.pdf
- Description:
- TRANS NPN 45V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:8,086
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Product details
Overview
BCP54-16-QX from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT223 (SC-73) package, rated for 45 V VCEO, 1 A continuous collector current, and 100–250 hFE at VCE = 2 V / IC = 150 mA. It serves as a low-side switch or MOSFET driver in automotive power management circuits with thermal resistance as low as 93 K/W when mounted on 6 cm² copper pad.
For engineers reviewing the BCP54-16-QX datasheet, BCP54-16-QX pinout, BCP54-16-QX application, or BCP54-16-QX equivalent, this page delivers verified electrical parameters, validated SOT223 pin mapping, automotive-grade reliability context, and real-world use cases in linear regulators and battery-driven systems.
Technical Context
This transistor operates as a single NPN silicon device optimized for medium-power switching and amplification. Its 45 V breakdown voltage supports 24 V automotive rail applications, while its pulsed peak collector current of 2 A enables robust transient handling in motor drive and load-switching circuits.
The device features three hFE gain bins - BCP54-16-QX specifically offers 100–250 at 150 mA - and achieves 1.35 W total power dissipation with proper PCB heatsinking. Thermal performance is defined across three mounting conditions, with junction-to-ambient resistance dropping from 195 K/W (standard footprint) to 93 K/W (6 cm² collector pad).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage under open-base condition; defines maximum supply rail compatibility in 24 V automotive systems. |
| IC | 1 A - Continuous DC collector current rating; sets steady-state load-driving capability in linear regulators and low-side switches. |
| hFE | 100–250 at VCE = 2 V, IC = 150 mA - Confirmed DC current gain range enabling predictable base drive sizing for saturation control. |
| Ptot | 1.35 W - Max power dissipation with 6 cm² copper pad; determines thermal margin in enclosed automotive modules without forced cooling. |
| fT | 100–180 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; supports stable operation up to ~10 MHz switching in Class-A amplifiers or gate drivers. |
| VCE(sat) | ≤0.5 V at IC = 500 mA, IB = 50 mA - Low saturation voltage ensures <0.25 W conduction loss at full rated current, critical for efficiency in battery-powered devices. |
| Rth(j-a) | 93 K/W - Junction-to-ambient thermal resistance with 6 cm² collector pad; enables direct thermal modeling for junction temperature prediction in production layouts. |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with four leads: pins 1 and 4 are internally connected to the collector for enhanced thermal and current handling; pin 2 is base; pin 3 is emitter. The exposed collector tab provides primary thermal path to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Collector (C) | Primary high-current output terminal; electrically tied to pin 4 for parallel current sharing and improved thermal conduction. |
| 2 | Base (B) | Control input requiring ~50 mA drive for full saturation at 500 mA collector current; sensitive to ESD per AEC-Q101 qualification. |
| 3 | Emiter (E) | Reference node for biasing; must be connected to ground or low-impedance return path to maintain gain stability and prevent latch-up. |
| 4 | Collector (C) | Secondary collector connection; shares internal die bond wire with pin 1 to reduce effective series resistance and improve power handling. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood environments including temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| Three hFE gain bins | Enables precise base resistor selection across production lots: BCP54-16-QX's 100–250 range reduces design margining vs. generic transistors. |
| Enhanced thermal performance | 1.35 W Ptot with 6 cm² copper pad allows >2× power handling vs. standard SO-8 equivalents in space-constrained automotive ECUs. |
| High peak current capability | 2 A ICM (1 ms pulse) supports surge loads in motor startup, solenoid actuation, and LED flash circuits without secondary protection. |
| Low VCE(sat) | ≤0.5 V at IC/IB = 10 ensures minimal voltage drop in battery-fed low-side switches, preserving >95% of supply voltage at full load. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Pass transistor in adjustable 5–12 V linear regulators powering infotainment microcontrollers. IC Role / Device Role / Timing Role: Medium-power NPN pass element controlling output voltage via feedback loop; handles 0.5–1 A continuous load. Use Value: 45 V VCEO accommodates input transients up to 40 V; 100–250 hFE ensures stable loop gain across temperature and unit variance. |
Use Scenario: Gate driver stage for N-channel power MOSFETs in 12 V automotive body control modules. IC Role / Device Role / Timing Role: Low-side switch that pulls MOSFET gate to ground during turn-off; operates in saturated switching mode. Use Value: ≤0.5 V VCE(sat) minimizes driver-stage conduction loss; 2 A ICM safely absorbs gate charge spikes during fast switching. |
| Low-Side Switches | Battery-Driven Devices |
Use Scenario: Load switch for HVAC blower motors or seat heater elements in 12/24 V vehicle platforms. IC Role / Device Role / Timing Role: Primary current-handling switch controlled by MCU GPIO; duty-cycled at <1 kHz to regulate power. Use Value: SOT223 thermal design supports 1 A continuous without heatsink; AEC-Q101 qualification ensures reliability over 15-year vehicle life. |
Use Scenario: Power enable switch in portable diagnostic tools powered by Li-ion packs (8–16 V nominal). IC Role / Device Role / Timing Role: Reverse-polarity and overcurrent protected main power path; activated only during active measurement cycles. Use Value: 5 V VEBO withstands accidental reverse connection; low VCE(sat) extends battery runtime by reducing dropout losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCP54-10-Q | hFE = 63–160 at same test conditions; lower mid-range gain bin. | Less suitable for low-base-drive designs; requires larger base resistor or higher drive current for same IC. | Select when tighter hFE tolerance is needed or when circuit has excess base drive margin. |
| ZTX653 | TO-92 package; 60 V VCEO; 1.5 A IC; hFE = 100–300; not AEC-Q101 qualified. | Larger footprint and no automotive qualification; higher VCEO but inferior thermal performance (Rth(j-a) ≈ 200 K/W). | Use only in non-automotive industrial or prototyping contexts where qualification is not required. |
Compared with BCP54-10-Q, BCP54-16-QX offers higher minimum hFE for more consistent saturation across temperature, while ZTX653 trades automotive compliance and thermal efficiency for higher voltage rating and through-hole assembly flexibility.
Availability
BCP54-16-QX is available at Aetrix Electronics and suitable for automotive body control modules, battery management subsystems, and industrial power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant discrete transistors.
Supply support for BCP54-16-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with core expertise in automotive-qualified components and efficient manufacturing.
The BCP54-Q series belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor product line, designed specifically for automotive power management, load switching, and driver applications demanding robust thermal performance and gain consistency.
FAQ
Is BCP54-16-QX pin-compatible with other SOT223 NPN transistors?
Yes - BCP54-16-QX uses standard SOT223 pinout: pin 1 = collector, pin 2 = base, pin 3 = emitter, pin 4 = collector. This matches industry-standard SOT223 layout used by ZXTN25040, MMBT4401, and PBSS4041T, enabling direct PCB footprint reuse where thermal and gain requirements align.
What is the maximum allowable junction temperature during operation?
The absolute maximum junction temperature is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent degradation. Derating curves in the datasheet show usable power drops linearly above 25 °C ambient, reaching zero at 150 °C junction temperature with 6 cm² copper pad.
Does BCP54-16-QX require external base resistors in switching applications?
Yes - it does not include integrated base resistors. For reliable saturation at 1 A IC, a base resistor of ~220 Ω is typical when driven from a 5 V MCU GPIO, delivering ~20 mA IB (IC/IB = 5). Exact value depends on hFE bin and operating temperature.
How does the dual-collector configuration (pins 1 and 4) affect PCB layout?
Pins 1 and 4 are internally shorted to the same collector node and thermal pad. Layout best practice is to connect both to a single large copper pour - ideally ≥6 cm² - to achieve the 93 K/W Rth(j-a) rating. Splitting them reduces thermal performance and increases risk of solder joint fatigue under thermal cycling.
BCP54-16-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 45 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 2V
- Power - Max:
- 650 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP54-16-QX FAQ
1.How can I place an order for BCP54-16-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP54-16-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 BCP54-16-QX reliable?
The price and inventory of BCP54-16-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP54-16-QX is usually 5 days.
3.What payment methods are accepted for BCP54-16-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP54-16-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP54-16-QX?
BCP54-16-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP54-16-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 BCP54-16-QX?
For technical support, including BCP54-16-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP54-16-QX requirements.
6.How does Aetrix verify that BCP54-16-QX is sourced from the original manufacturer or authorized distributors?
All BCP54-16-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 BCP54-16-QX meets industry standards.
7.What is the process for return or replacement of BCP54-16-QX?
All BCP54-16-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCP54-16-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 BCP54-16-QX part is unused and in its original packaging.
Return procedure for BCP54-16-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCP54-16-QX Tags
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