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Nexperia USA Inc. BCX54-16-QF
- Part No.:
- BCX54-16-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX54-16-QF.pdf
- Description:
- TRANS NPN 45V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:8,509
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Product details
Overview
BCX54-16-QF from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT89 (SC-62) 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 on 6 cm² copper pad.
For engineers reviewing the BCX54-16-QF datasheet, BCX54-16-QF pinout, BCX54-16-QF application, or BCX54-16-QF equivalent, this device is selected for linear voltage regulators, battery-driven devices, and automotive-grade switching where stable hFE across temperature and robust pulsed current capability (2 A peak) are required.
Technical Context
This transistor operates as a single NPN silicon switching element with base-controlled current amplification. Its design supports DC and pulsed operation up to 2 A with 0.5 V VCE(sat) at IC = 500 mA / IB = 50 mA, and exhibits fT = 100–180 MHz for moderate-frequency signal handling.
Thermal performance is defined by three mounting conditions: standard SOT89 footprint (250 K/W), 1 cm² collector pad (132 K/W), and 6 cm² pad (93 K/W). Junction temperature is rated to 150 °C, and ambient operating range spans −55 °C to +150 °C per AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in low-side switch designs. |
| IC (continuous) | 1 A - Continuous DC collector current rating; determines steady-state load drive capability in regulators or drivers. |
| hFE | 100–250 at VCE = 2 V, IC = 150 mA - Confirmed DC current gain range enabling predictable base drive sizing. |
| VCE(sat) | ≤ 0.5 V at IC = 500 mA, IB = 50 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| Ptot | 1.35 W with 6 cm² copper pad - Total power dissipation limit under optimized PCB thermal layout. |
| fT | 100–180 MHz - Transition frequency confirming suitability for audio and low-MHz signal amplification or fast switching. |
| Rth(j-a) | 93 K/W (6 cm² pad) - Junction-to-ambient thermal resistance defining required board-level heatsinking. |
Pinout & Package
SOT89 (SC-62) surface-mount plastic package with exposed die pad for enhanced thermal transfer; 3-pin flat-lead outline measuring 4.6 × 2.6 mm, 1.8 mm height, and standardized reflow footprint (Fig. 10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Current return path; connected to ground or low-side reference in switch configurations. |
| 2 | Collector (C) | Main current output node; tied to load or MOSFET gate; requires thermal pad connection for power handling. |
| 3 | Base (B) | Control input; driven with ~50 mA to saturate at 500 mA load, enabling digital or analog biasing. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
| Three hFE bins | BCX54-16-QF offers 100–250 hFE, enabling precise gain matching in production without post-selection. |
| Exposed collector pad | Integral thermal path from die to PCB; reduces Rth(j-a) by up to 63% vs. standard SOT89 footprint. |
| High peak current | 2 A single-pulse rating (tp ≤ 1 ms) supports surge-tolerant operation in motor or solenoid drivers. |
| Low VBE | ≤ 1 V at IC = 500 mA - Reduces base drive power and enables compatibility with 3.3 V logic control. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Used as pass transistor in adjustable LDOs delivering up to 1 A output with external feedback. IC Role / Device Role / Timing Role: NPN pass element controlling output voltage via base bias; not timing-critical. Use Value: Stable hFE over −55 °C to +150 °C ensures consistent regulation across automotive temperature ranges. |
Use Scenario: Driving N-channel MOSFET gates in high-current DC-DC converters or motor controllers. IC Role / Device Role / Timing Role: Current-amplifying interface between low-power controller and high-capacitance gate. Use Value: 2 A peak current and 180 MHz fT enable fast gate charging with minimal delay in 100 kHz–1 MHz switching. |
| Low-Side Switches | Battery-Driven Devices |
Use Scenario: Controlling 12 V/24 V loads such as relays, LEDs, or fans in vehicle body electronics. IC Role / Device Role / Timing Role: Ground-referenced switching element activated by microcontroller GPIO. Use Value: 0.5 V VCE(sat) limits power loss to <150 mW at 300 mA, extending battery life in always-on modules. |
Use Scenario: Power path control in portable medical monitors or handheld test equipment powered by Li-ion packs. IC Role / Device Role / Timing Role: Load switch isolating subsystems during sleep mode or fault conditions. Use Value: AEC-Q101 qualification ensures reliability in field-deployed devices subject to vibration and thermal shock. |
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 |
|---|---|---|---|
| BCX56-16-Q | 60 V VCEO, same hFE bin, identical SOT89 package | Higher voltage headroom for 48 V systems; otherwise drop-in compatible | Select when operating above 45 V supply rails or requiring margin against transients |
| ZTX653 | 60 V VCEO, 2 A IC, TO-92 package, no AEC-Q101 qualification | Larger through-hole footprint; lacks automotive qualification and thermal pad | Use only in non-automotive, cost-sensitive, low-volume industrial designs where thermal performance is secondary |
Compared with BCX54-16-QF, BCX56-16-Q extends voltage capability without sacrificing gain or package compatibility, while ZTX653 trades qualification and thermal efficiency for legacy through-hole assembly-making BCX54-16-QF optimal for AEC-compliant SMT power switching.
Availability
BCX54-16-QF is available at Aetrix Electronics and suitable for automotive body control modules, industrial power supplies, and battery management systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BCX54-16-QF 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 manufacturing rooted in process excellence and automotive-grade quality systems.
The BCX54-Q series belongs to Nexperia's AEC-Q101-qualified medium power transistor family, engineered specifically for automotive power switching, voltage regulation, and driver stages where thermal robustness and parametric consistency are critical.
FAQ
What is the maximum allowable junction temperature for BCX54-16-QF?
The absolute maximum junction temperature is 150 °C, as defined in Table 5 of the datasheet. Operation beyond this limit risks permanent degradation. Derating is required above Tamb = 25 °C, with Ptot decreasing linearly per the curves in Figure 1-e.g., 0.95 W at 75 °C ambient with 1 cm² pad.
Is BCX54-16-QF suitable for PWM motor control applications?
Yes-it supports pulsed operation up to 2 A with tp ≤ 1 ms and δ ≤ 0.02, and its 180 MHz fT enables clean gate driving for MOSFETs in PWM frequencies up to several hundred kHz. VCE(sat) ≤ 0.5 V at IC = 500 mA also minimizes conduction loss during active periods.
How does the SOT89 exposed pad affect PCB layout requirements?
The exposed collector pad must be soldered to a minimum 6 cm² copper area for full 1.35 W rating; smaller pads reduce Ptot to 0.95 W (1 cm²) or 0.50 W (standard footprint). Thermal vias under the pad are recommended to improve heat transfer to inner layers or heatsink planes.
Does BCX54-16-QF have built-in ESD protection?
No-BCX54-16-QF has no integrated ESD protection diodes. Its ESD rating is specified per AEC-Q101 as HBM ≥ 2 kV (Class 2), meaning external protection (e.g., TVS on base line) is required in environments with >2 kV discharge risk, especially in automotive harness interfaces.
BCX54-16-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- 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:
- 500 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX54-16-QF FAQ
1.How can I place an order for BCX54-16-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX54-16-QF 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 BCX54-16-QF reliable?
The price and inventory of BCX54-16-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX54-16-QF is usually 5 days.
3.What payment methods are accepted for BCX54-16-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX54-16-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX54-16-QF?
BCX54-16-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX54-16-QF 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 BCX54-16-QF?
For technical support, including BCX54-16-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX54-16-QF requirements.
6.How does Aetrix verify that BCX54-16-QF is sourced from the original manufacturer or authorized distributors?
All BCX54-16-QF 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 BCX54-16-QF meets industry standards.
7.What is the process for return or replacement of BCX54-16-QF?
All BCX54-16-QF units undergo pre-shipment inspection (PSI). If there is an issue with BCX54-16-QF, 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 BCX54-16-QF part is unused and in its original packaging.
Return procedure for BCX54-16-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX54-16-QF Tags
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Diodes Incorporated
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Nexperia USA Inc.
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