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Nexperia USA Inc. BC56-10PAS-QX
- Part No.:
- BC56-10PAS-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
BC56-10PAS-QX.pdf
- Description:
- TRANS NPN 80V 1A DFN2020D-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,593
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Product details
Overview
BC56-10PAS-QX from Nexperia is an AEC-Q101-qualified NPN medium power transistor in a DFN2020D-3 (SOT1061D) leadless package, rated for 80 V VCEO, 1 A continuous collector current, and 160 hFE at IC = 150 mA, used as a high-side switch or MOSFET driver in automotive power management circuits.
For engineers reviewing the BC56-10PAS-QX datasheet, BC56-10PAS-QX pinout, BC56-10PAS-QX application, or BC56-10PAS-QX equivalent, this page delivers verified thermal resistance values (Rth(j-a) down to 76 K/W), side-wettable flank compatibility for AOI, and precise DC current gain binning - all critical for automotive PCB layout and reliability validation.
Technical Context
This transistor operates as a single-element NPN bipolar junction device with base-controlled current amplification. Its DFN2020D-3 package integrates exposed collector pad for direct thermal conduction and solderable side flanks enabling automated optical inspection of solder joints.
It supports pulsed operation up to 2 A peak collector current (tp ≤ 1 ms) and maintains stable hFE across −55 °C to 150 °C ambient range. The 1.3 mm pitch and 2 mm × 2 mm footprint reduce PCB area by >40% versus SOT23 equivalents while sustaining 1.65 W total power dissipation on 4-layer FR4 with optimized copper pour.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage under open-base condition; enables use in 48 V automotive systems with margin. |
| IC (continuous) | 1 A - Continuous DC collector current rating; supports linear regulators and battery-switching loads without forced cooling. |
| hFE | 63–160 - Guaranteed DC current gain range at VCE = 2 V, IC = 150 mA, Tamb = 25 °C; ensures predictable base drive sizing. |
| VCE(sat) | ≤ 500 mV at IC = 500 mA, IB = 50 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| Rth(j-a) | 76 K/W - Thermal resistance with 4-layer FR4 + 1 cm² collector pad; enables 1.65 W power handling at Tamb = 25 °C. |
| fT | 100–180 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; sufficient for PWM frequencies up to 500 kHz with gain margin. |
| Package | DFN2020D-3 (SOT1061D) - 2 mm × 2 mm × 0.65 mm ultra-thin leadless package with side-wettable flanks for AOI-compatible reflow. |
Pinout & Package
BC56-10PAS-QX uses the DFN2020D-3 (SOT1061D) thermally enhanced leadless package with exposed collector pad on the bottom and solderable side flanks for visual and automated solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires ~50 mA base current to saturate 500 mA collector load - enables direct MCU GPIO driving with minimal external components. |
| 2 | Emitter (E) | Current return path; internally connected to substrate; must be tied to system ground or low-side reference for proper biasing. |
| 3 | Collector (C) | Power output terminal; exposed pad on underside serves as primary thermal and electrical path - requires dedicated copper pour for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified per Stress Test Qualification for Discrete Semiconductors - validated for automotive under-hood temperature cycling and humidity exposure. |
| Side-wettable flanks (SWF) | Visible solder fillets on package edges enable 100% automated optical inspection (AOI) without X-ray - reduces post-solder defect escapes. |
| Exposed collector pad | Direct thermal interface to PCB copper; achieves Rth(j-a) = 76 K/W with 4-layer board and 1 cm² collector pad - eliminates need for heatsinks in <1 W apps. |
| Two hFE bins | BC56-10PAS-QX (63–160) and BC56-16PAS-QX (100–250) allow precise gain matching for analog feedback loops or matched pair designs. |
| Ultra-thin profile | 0.65 mm max height - enables stacking in space-constrained modules like ECU power stages or battery management sensor nodes. |
Applications
| Linear Voltage Regulators | Battery-Driven Devices |
|---|---|
|
Use Scenario: Pass transistor in adjustable LDOs powering infotainment microcontrollers from 12 V battery rail. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias network. Use Value: 80 V VCEO withstands load-dump transients; 1 A rating supports 500 mA typical load with thermal headroom on standard FR4. |
Use Scenario: Load switch enabling/disabling power to BLE modules in automotive key fobs. IC Role / Device Role / Timing Role: High-side switch controlled by MCU GPIO to isolate downstream circuitry. Use Value: 500 mV VCE(sat) limits dropout to <1% at 100 mA; SWF design ensures AOI-verified solder integrity in high-volume SMT lines. |
| MOSFET Drivers | Automotive Power Management |
|
Use Scenario: Gate driver stage for N-channel high-side MOSFETs in 48 V DC-DC converters. IC Role / Device Role / Timing Role: Current-amplifying stage translating logic-level signals to higher gate charge current. Use Value: 180 MHz fT supports fast turn-on of 10 nF gate capacitance within 100 ns; 2 A ICM handles gate charge surges. |
Use Scenario: Overvoltage protection circuit sensing battery voltage and disabling charging path during alternator spikes. IC Role / Device Role / Timing Role: Sensing amplifier input stage feeding comparator reference or ADC input. Use Value: Stable hFE over −40 °C to 125 °C ensures consistent gain in engine bay environments; AEC-Q101 certification covers full automotive temp range. |
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 |
|---|---|---|---|
| BC56-16PAS-Q | Higher hFE bin (100–250 vs. 63–160); identical VCEO, IC, package, and thermal specs. | Better suited for low-base-drive applications (e.g., weak GPIOs) or precision current mirrors requiring tighter gain matching. | Select when base current budget is constrained or analog gain stability is critical; same footprint and qualification level. |
| ZXTN2012ZTA | Same DFN2020D-3 package but higher VCEO (100 V), lower hFE (100–200), and no AEC-Q101 qualification. | Acceptable for industrial 48 V systems but not certified for automotive safety-critical functions or extended temperature validation. | Use only in non-automotive designs where 100 V margin is needed and AEC compliance is unnecessary. |
Compared with BC56-10PAS-QX, BC56-16PAS-Q offers higher gain for reduced base drive overhead, while ZXTN2012ZTA trades automotive qualification for wider voltage headroom - making BC56-10PAS-QX optimal for cost-sensitive, AEC-compliant 12/48 V switching where moderate hFE suffices.
Availability
BC56-10PAS-QX is available at Aetrix Electronics and suitable for automotive power management, battery-driven devices, and MOSFET driver circuits requiring stable component supply, AEC-Q101 traceability, and AOI-compatible packaging.
Supply support for BC56-10PAS-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 specializing in high-performance, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BC56xPAS-Q series targets automotive power control applications demanding AEC-Q101 reliability, ultra-small footprints, and thermal efficiency - designed specifically for next-generation ECUs, body controllers, and battery management subsystems.
FAQ
Is BC56-10PAS-QX pin-compatible with BC846 or BC847 series transistors?
No. BC56-10PAS-QX uses a 3-pin DFN2020D-3 (SOT1061D) package with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector. BC846/BC847 are in SOT23 packages with different pinout (1 = Emitter, 2 = Base, 3 = Collector) and larger footprint - mechanical and thermal redesign is required for substitution.
What is the maximum allowable PCB copper area for the exposed collector pad?
The datasheet specifies thermal performance for collector pads of 1 cm² and 6 cm² on single-sided FR4. No upper limit is defined, but increasing pad area beyond 6 cm² yields diminishing returns; recommended practice is 1–2 cm² with thermal vias to inner layers for optimal Rth(j-a) improvement.
Does BC56-10PAS-QX support reflow soldering per JEDEC J-STD-020?
Yes. The DFN2020D-3 package is qualified for standard lead-free reflow profiles (peak 260 °C, 20–40 sec above 217 °C). Footprint dimensions and solder paste stencil recommendations are provided in Figure 12 of the datasheet for reliable side-wettable flank wetting.
Can BC56-10PAS-QX be used in linear amplifier configurations?
Yes - its 100–180 MHz fT, low VCE(sat), and stable hFE across temperature make it suitable for Class-A audio preamplifiers or sensor signal conditioning. However, derate power dissipation using Rth(j-a) curves (Figure 1) and avoid operation above 125 °C junction temperature.
BC56-10PAS-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC56PAS-Q
- Package/Case:
- 3-UDFN Exposed Pad
- 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:
- 40 @ 500mA, 2V
- Power - Max:
- 420 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN2020D-3
BC56-10PAS-QX FAQ
1.How can I place an order for BC56-10PAS-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BC56-10PAS-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 BC56-10PAS-QX reliable?
The price and inventory of BC56-10PAS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC56-10PAS-QX is usually 5 days.
3.What payment methods are accepted for BC56-10PAS-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC56-10PAS-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC56-10PAS-QX?
BC56-10PAS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC56-10PAS-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 BC56-10PAS-QX?
For technical support, including BC56-10PAS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC56-10PAS-QX requirements.
6.How does Aetrix verify that BC56-10PAS-QX is sourced from the original manufacturer or authorized distributors?
All BC56-10PAS-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 BC56-10PAS-QX meets industry standards.
7.What is the process for return or replacement of BC56-10PAS-QX?
All BC56-10PAS-QX units undergo pre-shipment inspection (PSI). If there is an issue with BC56-10PAS-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 BC56-10PAS-QX part is unused and in its original packaging.
Return procedure for BC56-10PAS-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC56-10PAS-QX Tags
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