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Nexperia USA Inc. BCX56-10-QF
- Part No.:
- BCX56-10-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX56-10-QF.pdf
- Description:
- TRANS NPN 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:6,678
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Product details
Overview
BCX56-10-QF 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, used as low-side switch or MOSFET driver in automotive power management circuits.
For engineers reviewing the BCX56-10-QF datasheet, BCX56-10-QF pinout, BCX56-10-QF application, or BCX56-10-QF equivalent, key selection criteria include its 80 V breakdown voltage, thermal resistance of 132 K/W on 1 cm² copper pad, AEC-Q101 qualification, and SOT89 footprint compatibility with high-power linear regulators and battery-driven load switching.
Technical Context
This NPN bipolar junction transistor operates with fixed base-emitter forward biasing and supports DC and pulsed switching up to 2 A peak collector current. Its hFE range of 63–160 at VCE = 2 V and IC = 150 mA enables predictable current amplification in analog and digital interface stages.
The device features a maximum junction temperature of 150 °C and thermal resistance Rth(j-a) = 132 K/W under defined PCB mounting (1 cm² collector pad), making it suitable for thermally constrained automotive modules where ambient temperatures reach 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in low-side switch designs. |
| IC (continuous) | 1 A - Continuous collector current rating; supports sustained 12 V/1 A loads without forced cooling. |
| hFE | 63–160 - DC current gain at VCE = 2 V, IC = 150 mA; determines required base drive for saturation in switching applications. |
| VCE(sat) | ≤0.5 V at IC = 500 mA, IB = 50 mA - Low saturation voltage minimizes conduction loss in power control paths. |
| Ptot | 0.95 W - Total power dissipation on FR4 PCB with 1 cm² collector pad; sets thermal design boundary for enclosure layout. |
| fT | 100–180 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; supports stable operation up to ~10 MHz switching in driver stages. |
| Rth(j-a) | 132 K/W - Junction-to-ambient thermal resistance with 1 cm² copper pad; informs heatsinking requirements for 1 A continuous use. |
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 optimized for thermal conduction via collector pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Reference node for current flow; connected to ground or low-side return path in switch configurations. |
| 2 | Collector (C) | Main power output terminal; soldered to large copper area for thermal management and current handling. |
| 3 | Base (B) | Control input; requires ≥50 mA drive for guaranteed saturation at 500 mA collector load. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test standard, enabling use in engine control and body electronics. |
| Three hFE bins | BCX56-10-Q offers 63–160 hFE, enabling precise base drive sizing across production batches without recalibration. |
| High Ptot on minimal PCB area | 0.95 W dissipation with only 1 cm² collector pad - reduces board space vs. TO-220 alternatives in space-constrained modules. |
| Low VCE(sat) | ≤0.5 V ensures <1.5% voltage drop at 1 A load, preserving efficiency in 5–24 V battery-powered systems. |
| Robust breakdown ratings | VCBO = 100 V and VEBO = 5 V provide margin against transients and ESD in unregulated supply rails. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Pass transistor in adjustable 3-terminal linear regulator delivering up to 1 A at 5–12 V output. IC Role / Device Role / Timing Role: NPN series pass element controlled by error amplifier feedback loop. Use Value: 80 V VCEO accommodates 24 V input rails with safety margin; 1 A rating matches typical regulator output capacity. |
Use Scenario: Gate driver stage for N-channel power MOSFETs in 12 V automotive motor control. IC Role / Device Role / Timing Role: Current-amplifying switch translating microcontroller GPIO to 500 mA gate charge/discharge pulses. Use Value: 180 MHz fT ensures fast turn-on/turn-off; 0.5 V VCE(sat) minimizes driver-stage losses during PWM operation. |
| Low-Side Switches | Battery-Driven Devices |
Use Scenario: Load switch controlling solenoids, relays, or LED arrays in vehicle lighting modules. IC Role / Device Role / Timing Role: High-current NPN switch sinking load current to ground under MCU command. Use Value: 2 A peak ICM handles inrush currents; AEC-Q101 qualification guarantees reliability in cyclic automotive duty cycles. |
Use Scenario: Power enable switch for portable diagnostic tools powered by 12 V lead-acid or LiFePO₄ batteries. IC Role / Device Role / Timing Role: Reverse-polarity and overcurrent protected main power path controller. Use Value: -55 °C to +150 °C Tamb range supports operation in cold cranking and hot underhood environments. |
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 | hFE = 100–250 at IC = 150 mA; otherwise identical ratings and package. | Higher gain reduces required base drive current but increases sensitivity to temperature drift. | Select when lower base current (<30 mA) is needed for MCU GPIO compatibility or reduced driver complexity. |
| ZTX653 | TO-92 package; VCEO = 60 V; IC = 1 A; hFE = 100–300; not AEC-Q101 qualified. | Larger footprint and lower voltage rating limit use to non-automotive, low-voltage consumer applications. | Choose only for cost-sensitive, non-automotive prototypes where 60 V margin suffices and thermal performance is secondary. |
Compared with BCX56-10-QF, BCX56-16-Q offers higher gain for reduced base drive but tighter hFE spread, while ZTX653 trades AEC-Q101 compliance and 80 V rating for TO-92 availability and wider hFE range-making BCX56-10-QF optimal for thermally demanding, automotive-grade 1 A switching.
Availability
BCX56-10-QF is available at Aetrix Electronics and suitable for automotive power management, industrial linear regulators, and battery-powered load switching requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BCX56-10-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 essential efficiency-enhancing components, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.
The BCX56-Q series targets automotive-grade medium-power bipolar switching, designed specifically for robust, thermally efficient NPN replacement in legacy linear and switching power stages where AEC-Q101 compliance is mandatory.
FAQ
Is BCX56-10-QF suitable for automotive underhood applications?
Yes. It is fully qualified to AEC-Q101 standards, with guaranteed operation from −55 °C to +150 °C junction temperature and validated reliability for automotive underhood environments including engine control units and body electronics modules.
What is the minimum base current required to saturate BCX56-10-QF at 1 A collector load?
With hFE(min) = 63 and IC = 1 A, a minimum base current of 15.9 mA is required for hard saturation. However, datasheet testing uses IB = 50 mA at IC = 500 mA to ensure VCE(sat) ≤ 0.5 V - recommend ≥30 mA for 1 A loads in production designs.
Can BCX56-10-QF replace BCX56-16-Q in existing designs?
Yes, electrically and mechanically - both share identical SOT89 package, voltage/current ratings, and thermal specs. The only difference is hFE range (63–160 vs. 100–250), so verify base drive capability remains sufficient when substituting downward in gain bin.
What PCB layout practices maximize thermal performance for BCX56-10-QF?
Connect Pin 2 (collector) to a ≥1 cm² copper pour on the top layer, using ≥4 thermal vias to inner/ground planes. Maintain ≥0.5 mm clearance from adjacent components, and avoid routing high-speed traces beneath the device to preserve thermal mass integrity.
BCX56-10-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):
- 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-QF FAQ
1.How can I place an order for BCX56-10-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX56-10-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 BCX56-10-QF reliable?
The price and inventory of BCX56-10-QF 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-QF is usually 5 days.
3.What payment methods are accepted for BCX56-10-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX56-10-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX56-10-QF?
BCX56-10-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX56-10-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 BCX56-10-QF?
For technical support, including BCX56-10-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX56-10-QF requirements.
6.How does Aetrix verify that BCX56-10-QF is sourced from the original manufacturer or authorized distributors?
All BCX56-10-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 BCX56-10-QF meets industry standards.
7.What is the process for return or replacement of BCX56-10-QF?
All BCX56-10-QF units undergo pre-shipment inspection (PSI). If there is an issue with BCX56-10-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 BCX56-10-QF part is unused and in its original packaging.
Return procedure for BCX56-10-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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