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Nexperia USA Inc. BCX56-10-QX
- Part No.:
- BCX56-10-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX56-10-QX.pdf
- Description:
- TRANS NPN 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:6,789
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Product details
Overview
BCX56-10-QX from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT89 (SC-62) package, rated for 80 V VCEO, 1 A continuous collector current, and 160 hFE at IC = 150 mA / VCE = 2 V. 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 BCX56-10-QX datasheet, BCX56-10-QX pinout, BCX56-10-QX application, or BCX56-10-QX equivalent, this part is selected for linear voltage regulators, battery-driven devices, and automotive-grade amplifiers where high DC gain consistency and junction temperature up to 150 °C are required.
Technical Context
This transistor operates as a single NPN bipolar junction device optimized for medium-power switching and amplification. Its hFE range of 63–160 at 150 mA ensures predictable base drive requirements in saturated-switching configurations, while its 80 V VCEO rating supports 24 V and 48 V automotive bus applications.
Thermal performance is defined across three PCB mounting conditions: standard footprint (250 K/W), 1 cm² collector pad (132 K/W), and 6 cm² pad (93 K/W). The device delivers 0.5 V VCE(sat) at IC = 500 mA / IB = 50 mA, enabling efficient low-voltage drop operation in power control paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage with open base; enables use in 48 V automotive systems with margin. |
| IC (continuous) | 1 A - Continuous collector current rating; supports load switching up to ~12 W at 12 V with adequate heatsinking. |
| hFE | 63–160 - DC current gain at VCE = 2 V, IC = 150 mA; defines base drive current needed for full saturation. |
| VCE(sat) | ≤ 0.5 V at IC = 500 mA / IB = 50 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| Ptot (max) | 1.35 W - Total power dissipation with 6 cm² copper pad; sets thermal design boundary for PCB layout. |
| fT | 100–180 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; confirms suitability for audio and low-MHz signal amplification. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, flat leads for thermal conduction via collector pad.
| 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 power output terminal; thermally coupled to PCB copper for heat dissipation. |
| 3 | Base (B) | Control input; requires current-limited drive (e.g., 5–50 mA) to achieve full saturation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood environments including temperature cycling, humidity, and mechanical shock. |
| Three hFE bins | BCX56-10-Q (63–160), BCX56-16-Q (100–250), BCX56-Q (63–250); enables precise gain matching in production batches. |
| High Ptot scalability | 1.35 W max with 6 cm² copper pad - allows compact board area usage without external heatsink in many 1 A applications. |
| Low VCE(sat) | ≤ 0.5 V at IC/IB = 10 - reduces power loss and self-heating during sustained conduction. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Pass transistor in adjustable 3-terminal linear regulators delivering up to 1 A output current. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias from error amplifier. Use Value: Stable regulation with <1.5 W internal dissipation at 12 V input/5 V output, enabled by 80 V VCEO and 1.35 W Ptot. |
Use Scenario: Gate driver stage for N-channel power MOSFETs in DC-DC converters or motor controllers. IC Role / Device Role / Timing Role: Medium-current buffer amplifying microcontroller GPIO signals to deliver ≥50 mA peak gate charge current. Use Value: Fast turn-on supported by fT > 100 MHz and low VCE(sat), minimizing MOSFET switching losses. |
| Automotive Low-Side Switches | Battery-Powered Amplifiers |
|
Use Scenario: Load switch for headlights, fans, or solenoids in 12 V/24 V vehicle subsystems. IC Role / Device Role / Timing Role: Ground-referenced switching element controlled by CAN/LIN interface IC or MCU PWM output. Use Value: AEC-Q101 qualification and 150 °C Tj rating ensure reliability in under-hood ambient temperatures up to 125 °C. |
Use Scenario: Small-signal preamplifier or output stage in portable audio equipment powered by Li-ion batteries. IC Role / Device Role / Timing Role: Class-A or AB amplifier transistor biased for low-distortion analog signal amplification. Use Value: hFE stability over -55 °C to 100 °C and fT > 100 MHz support wideband audio fidelity up to 20 kHz. |
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 | Higher hFE bin (100–250 vs. 63–160); identical VCEO, IC, package, and thermal specs. | Better suited for low-base-drive designs (e.g., direct MCU GPIO drive) where gain margin is critical. | Select when base current budget is constrained and higher gain consistency is required at IC = 150 mA. |
| ZTX653 | TO-92 package, 100 V VCEO, 1.5 A IC, hFE 100–300; no AEC-Q101 qualification. | Higher voltage/current capability but lacks automotive qualification and SMT thermal performance. | Consider only for non-automotive industrial or prototyping use where through-hole assembly and extra voltage headroom are acceptable. |
Compared with BCX56-10-QX, BCX56-16-Q offers higher gain for reduced base drive burden, while ZTX653 trades automotive compliance and SMT thermal efficiency for higher voltage rating and through-hole flexibility - making BCX56-10-QX optimal for volume automotive SMT power control.
Availability
BCX56-10-QX is available at Aetrix Electronics and suitable for automotive low-side switches, MOSFET drivers, and linear voltage regulators requiring stable component supply across production lifecycles.
Supply support for BCX56-10-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.
BCX56-Q series belongs to Nexperia's AEC-Q101-qualified discrete transistor portfolio, engineered for robust medium-power switching and amplification in harsh automotive environments.
FAQ
Is BCX56-10-QX pin-compatible with BCX56-16-Q?
Yes - both share identical SOT89 (SC-62) pinout: Pin 1 = Emitter, Pin 2 = Collector, Pin 3 = Base. They differ only in hFE binning and marking code (BK vs. BL), allowing direct substitution where gain tolerance permits.
What is the maximum allowable base current for continuous operation?
The absolute maximum DC base current is 0.3 A per datasheet limiting values. However, for reliable 1 A collector operation with hFE ≥ 63, typical design uses IB = 15–50 mA - staying well within safe limits and avoiding thermal runaway.
Can BCX56-10-QX be used in avalanche mode?
No - it is not rated or characterized for repetitive avalanche operation. The datasheet specifies only VCEO = 80 V and VCBO = 100 V as breakdown limits; intentional avalanche use may cause parametric shift or failure.
Does BCX56-10-QX require a heatsink in 1 A switching applications?
Not necessarily - with a 6 cm² copper pad, its Rth(j-a) drops to 93 K/W, allowing ~1.35 W dissipation at ≤ 25 °C ambient. At 1 A and 0.5 V VCE(sat), power is 0.5 W, resulting in ~47 °C junction rise - within safe 150 °C limit without added heatsink.
BCX56-10-QX 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):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 63 @ 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
BCX56-10-QX FAQ
1.How can I place an order for BCX56-10-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX56-10-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 BCX56-10-QX reliable?
The price and inventory of BCX56-10-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX56-10-QX is usually 5 days.
3.What payment methods are accepted for BCX56-10-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX56-10-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX56-10-QX?
BCX56-10-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX56-10-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 BCX56-10-QX?
For technical support, including BCX56-10-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX56-10-QX requirements.
6.How does Aetrix verify that BCX56-10-QX is sourced from the original manufacturer or authorized distributors?
All BCX56-10-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 BCX56-10-QX meets industry standards.
7.What is the process for return or replacement of BCX56-10-QX?
All BCX56-10-QX units undergo pre-shipment inspection (PSI). If there is an issue with BCX56-10-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 BCX56-10-QX part is unused and in its original packaging.
Return procedure for BCX56-10-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX56-10-QX Tags
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