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Nexperia USA Inc. BC56-10PASX
- Part No.:
- BC56-10PASX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-UDFN Exposed Pad
- Datasheet:
-
BC56-10PASX.pdf
- Description:
- TRANS NPN 80V 1A DFN2020D-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,099
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Product details
Overview
BC56-10PASX 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 BC56-10PASX datasheet, BC56-10PASX pinout, BC56-10PASX application, or BC56-10PASX equivalent, this device supports AOI-compatible assembly, delivers 500 mV VCE(sat) at IC/IB = 10, features side-wettable flanks for solder joint inspection, and offers thermal resistance as low as 76 K/W with 4-layer PCB mounting.
Technical Context
This transistor operates as a single-element NPN bipolar junction device optimized for linear and switching applications up to 80 V. Its design emphasizes thermal performance via an exposed collector pad and side-wettable flanks, enabling reliable operation at junction temperatures up to 150 °C under pulsed or DC conditions.
It supports two distinct hFE bins: BC56-10PASX (63–160) and BC56-16PASX (100–250), with consistent VCE(sat) ≤ 500 mV and fT ≥ 100 MHz. The device is characterized across –55 °C to +150 °C ambient and validated per AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum safe collector-emitter voltage with base open; defines upper rail limit in high-side switch designs. |
| IC | 1 A - Continuous DC collector current rating; supports sustained load driving without derating at Tamb ≤ 25 °C. |
| hFE | 63–160 - DC current gain range at VCE = 2 V, IC = 150 mA, Tamb = 25 °C; enables predictable base drive sizing. |
| VCE(sat) | ≤ 500 mV - Collector-emitter saturation voltage at IC = 500 mA, IB = 50 mA; minimizes conduction loss in switching mode. |
| Rth(j-a) | 76 K/W - Junction-to-ambient thermal resistance with 4-layer FR4 PCB and 1 cm² collector pad; enables higher power density layouts. |
| fT | 100–180 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; supports stable operation in fast-switching and RF-coupled amplifier stages. |
Pinout & Package
BC56-10PASX is housed in a thermally enhanced DFN2020D-3 (SOT1061D) ultra-thin leadless package measuring 2.0 mm × 2.0 mm × 0.65 mm, featuring visible side-wettable flanks for automated optical inspection and an exposed collector pad for improved heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal accepting current-limited input to bias the transistor into active or saturation region. |
| 2 | Emitter (E) | Current return path; internally connected to substrate ground plane in standard layout configurations. |
| 3 | Collector (C) | Main power output terminal; electrically and thermally tied to exposed copper pad on bottom of package. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics under stress test conditions. |
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joints without X-ray, reducing post-reflow defect escape. |
| Exposed collector pad | Provides direct thermal path to PCB copper, lowering Rth(j-a) by up to 55% versus standard SOT-23 equivalents. |
| Two hFE bins | BC56-10PASX (63–160) and BC56-16PASX (100–250) allow precise gain matching for analog feedback or digital switching consistency. |
Applications
| Linear Voltage Regulators | Battery-Driven Devices |
|---|---|
|
Use Scenario: Used as pass transistor in adjustable LDO regulators delivering up to 1 A output current. IC Role / Device Role / Timing Role: NPN pass element controlling output voltage via base bias from error amplifier. Use Value: Low VCE(sat) (≤500 mV) reduces dropout voltage and improves efficiency at full load. |
Use Scenario: Powers LED backlighting and motor drivers in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: High-side switch enabling controlled power delivery to subsystems during battery-saver modes. Use Value: AEC-Q101 qualification ensures long-term reliability under repeated charge/discharge cycling and thermal cycling. |
| MOSFET Drivers | Power Management |
|
Use Scenario: Drives gate of N-channel power MOSFETs in DC-DC converter half-bridge outputs. IC Role / Device Role / Timing Role: Fast-switching NPN stage providing high peak current (ICM = 2 A) for rapid MOSFET turn-on. Use Value: fT ≥ 100 MHz supports clean gate drive waveforms with minimal ringing in 100–500 kHz switching topologies. |
Use Scenario: Controls power sequencing and enable logic in automotive infotainment head units and ADAS domain controllers. IC Role / Device Role / Timing Role: Discrete high-side switch managing 12 V rail distribution to submodules. Use Value: 80 V VCEO withstands load-dump transients up to ISO 7637-2 Pulse 5a, eliminating need for external clamping. |
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 |
|---|---|---|---|
| BC56-16PASX | Higher hFE bin (100–250 vs. 63–160); identical package, voltage, and current ratings. | Better suited for low-base-drive applications such as precision current mirrors or low-power amplifiers. | Select when tighter hFE tolerance or lower base current is required without changing layout. |
| ZXTN2012ZTA | Same DFN2020-3 package but rated for 100 V VCEO, 1.5 A IC, and 200–450 hFE; not AEC-Q101 qualified. | Used in industrial power supplies where automotive qualification is unnecessary and higher voltage margin is needed. | Choose only for non-automotive systems requiring extended voltage headroom and higher peak current capability. |
Compared with BC56-10PASX, BC56-16PASX provides higher gain stability for analog functions, while ZXTN2012ZTA trades automotive qualification for wider voltage/current margins-making each suitable for distinct reliability or performance priorities.
Availability
BC56-10PASX is available at Aetrix Electronics and suitable for automotive power management, battery-driven portable instrumentation, and MOSFET gate driving applications requiring stable component supply, AEC-Q101 compliance, and compact thermal packaging.
Supply support for BC56-10PASX 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 leadership in automotive-qualified components and advanced packaging technologies.
The BC56xPAS series targets automotive and industrial power control applications, designed specifically to replace legacy SOT-23 transistors with superior thermal performance, AOI compatibility, and AEC-Q101 validation in ultra-thin DFN packages.
FAQ
Is BC56-10PASX pin-compatible with standard SOT-23 NPN transistors?
No. BC56-10PASX uses a DFN2020D-3 (SOT1061D) leadless package with side-wettable flanks and an exposed collector pad, differing mechanically and thermally from through-hole or gull-wing SOT-23 variants. PCB footprint and reflow profile must follow Nexperia's sot1061d_fr specification.
What is the maximum allowable base current for continuous operation?
The absolute maximum base current is 0.3 A per limiting values table. For reliable continuous operation, base current should be limited to ≤50 mA at 25 °C ambient, ensuring IC/IB ≤ 10 and maintaining VCE(sat) ≤ 500 mV without thermal runaway.
Does BC56-10PASX support reflow soldering with standard lead-free profiles?
Yes. It is qualified for JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260 °C. The DFN2020D-3 package requires precise stencil design (0.25 mm thickness, 0.35 mm aperture) and alignment to ensure wetting of side flanks and void-free solder joints on the exposed collector pad.
How does thermal performance change with different PCB copper configurations?
Rth(j-a) ranges from 76 K/W (4-layer board, 1 cm² collector pad) to 298 K/W (single-layer FR4, standard footprint). Increasing copper area under the collector pad reduces thermal resistance by up to 75%, directly improving power handling and long-term reliability in sustained 1 A operation.
BC56-10PASX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- 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:
- 63 @ 150mA, 2V
- Power - Max:
- 420 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN2020D-3
BC56-10PASX FAQ
1.How can I place an order for BC56-10PASX through Aetrix?
Please submit a Request for Quotation (RFQ) for BC56-10PASX 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 BC56-10PASX reliable?
The price and inventory of BC56-10PASX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC56-10PASX is usually 5 days.
3.What payment methods are accepted for BC56-10PASX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC56-10PASX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC56-10PASX?
BC56-10PASX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC56-10PASX 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 BC56-10PASX?
For technical support, including BC56-10PASX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC56-10PASX requirements.
6.How does Aetrix verify that BC56-10PASX is sourced from the original manufacturer or authorized distributors?
All BC56-10PASX 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 BC56-10PASX meets industry standards.
7.What is the process for return or replacement of BC56-10PASX?
All BC56-10PASX units undergo pre-shipment inspection (PSI). If there is an issue with BC56-10PASX, 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 BC56-10PASX part is unused and in its original packaging.
Return procedure for BC56-10PASX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC56-10PASX Tags
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