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Nexperia USA Inc. BCX56-10,115
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- Part No.:
- BCX56-10,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX56-10,115.pdf
- Description:
- TRANS NPN 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:802
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Product details
Overview
BCX56-10,115 from Nexperia is an NPN medium power transistor in SOT89 (SC-62) package, rated for 80 V VCEO, 1 A continuous collector current, and DC current gain (hFE) of 63–160 at VCE = 2 V and IC = 150 mA. It serves as a low-side switch or MOSFET driver in battery-powered power management circuits with thermal resistance as low as 93 K/W under optimized PCB mounting.
For engineers reviewing the BCX56-10,115 datasheet, BCX56-10,115 pinout, BCX56-10,115 application, or BCX56-10,115 equivalent, this device is selected for linear voltage regulators, amplifier stages, and discrete switching where moderate voltage headroom, stable hFE across temperature, and surface-mount thermal performance are required.
Technical Context
This transistor operates as a single-element NPN bipolar junction device with open-base collector-emitter breakdown of 80 V and emitter-base breakdown of 5 V. Its pulsed peak collector current reaches 2 A (tp ≤ 1 ms), supporting transient load handling in power control paths.
Thermal design relies on FR4 PCB mounting: total power dissipation ranges from 0.50 W (standard footprint) to 1.35 W (6 cm² collector pad), with junction-to-ambient thermal resistance varying from 250 K/W to 93 K/W depending on copper area - directly linking layout decisions to safe operating area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum sustainable collector-emitter voltage before breakdown; defines safe operating voltage margin in low-side switch configurations. |
| IC | 1 A continuous - Rated DC collector current; sets upper bound for steady-state load drive capability without derating. |
| hFE | 63–160 at VCE = 2 V, IC = 150 mA - Confirmed DC current gain range; determines base drive requirements for saturation in switching applications. |
| Ptot | 1.35 W with 6 cm² collector pad - Maximum power dissipation achievable with enhanced PCB copper; critical for thermal layout validation. |
| fT | 100–180 MHz - Transition frequency; indicates usable bandwidth for small-signal amplification up to ~100 MHz. |
| VCE(sat) | ≤ 0.5 V at IC = 500 mA, IB = 50 mA - Confirmed saturation voltage; enables <1.5 W conduction loss in 1 A switching paths. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, with collector tab thermally connected to Pin 2 for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Current return path; electrically and thermally isolated from collector pad; connects to ground or low-side reference node. |
| 2 | Collector (C) | Main power output terminal; internally bonded to exposed metal tab for direct PCB thermal coupling and high-current routing. |
| 3 | Base (B) | Control input; requires current-limited drive (≤ 0.3 A peak) to achieve full saturation without overdrive stress. |
Key Features
| Feature | Design Value |
|---|---|
| High collector current capability | 1 A continuous + 2 A pulsed rating supports sustained load switching and short-duration surge handling in portable power rails. |
| Three hFE selections (BCX56 / -10 / -16) | BCX56-10 offers 63–160 hFE, enabling predictable base drive sizing for consistent turn-on behavior across production lots. |
| Optimized thermal resistance | Rth(j-a) = 93 K/W with 6 cm² collector pad - reduces junction temperature rise by >40% vs. standard footprint, extending reliability in sealed enclosures. |
| Robust absolute maximum ratings | VCBO = 100 V, VEBO = 5 V, Tj = 150 °C - ensures survivability during inductive kickback, ESD transients, and ambient temperature excursions. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Discrete pass transistor in adjustable LDOs delivering up to 1 A output current with external feedback. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias; no timing function. Use Value: Low VCE(sat) minimizes dropout voltage; 80 V rating allows wide input range (e.g., 24 V industrial rails). |
Use Scenario: Gate driver stage for logic-level N-channel MOSFETs in DC-DC converters or motor H-bridges. IC Role / Device Role / Timing Role: Current-amplifying switch translating microcontroller GPIO into high-current gate charge/discharge pulses. Use Value: 2 A pulsed IC enables fast MOSFET turn-on; fT > 100 MHz supports sub-μs edge rates. |
| Low-Side Switches | Battery-Driven Devices |
|
Use Scenario: Load switching for solenoids, relays, or LED strings in 12–48 V systems with microcontroller control. IC Role / Device Role / Timing Role: Ground-referenced power switch; driven into saturation for minimal conduction loss. Use Value: 1.35 W Ptot with thermal pad supports >500 mA continuous at 70 °C ambient without heatsink. |
Use Scenario: Power path control in handheld medical monitors, portable test equipment, and rechargeable tools. IC Role / Device Role / Timing Role: Discrete ON/OFF switch managing battery-to-load connection; no signal conditioning or regulation. Use Value: SOT89 package enables compact layout; 5 V VEBO withstands reverse-battery protection diode drops. |
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 |
|---|---|---|---|
| BCX56-16,115 | Higher hFE range (100–250) at same VCE/IC; otherwise identical ratings and package. | Better suited for low-base-drive designs (e.g., weak MCU outputs); may require revalidation of saturation margin. | Select when base current is constrained and higher gain stability at IC = 150 mA is needed. |
| ZTX653STZ | Same SOT89 package, but 100 V VCEO, 1.5 A IC, hFE = 100–300; Rth(j-a) = 120 K/W (standard footprint). | Higher voltage/current headroom, but lower thermal efficiency without extended copper; not drop-in due to different marking and gain binning. | Choose for 48 V+ systems or where >1 A average load current is expected, accepting trade-off in thermal layout complexity. |
Compared with BCX56-10,115, BCX56-16,115 delivers higher gain for reduced base drive, while ZTX653STZ extends voltage and current margins at the cost of thermal performance on standard PCBs - selection depends on whether gain stability, voltage headroom, or thermal density is the dominant constraint.
Availability
BCX56-10,115 is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and low-side switches requiring stable component supply in industrial control, portable instrumentation, and power conversion modules.
Supply support for BCX56-10,115 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 essential semiconductors - including discrete devices, logic ICs, and MOSFETs - serving automotive, industrial, and consumer markets.
The BCX56 series belongs to Nexperia's medium-power bipolar transistor product line, engineered for robust switching and amplification in space-constrained, thermally demanding applications where SOT89 packaging and predictable hFE bins are critical.
FAQ
What is the maximum allowable base current for continuous operation?
The absolute maximum DC base current (IB) is 0.3 A per datasheet limiting values. For reliable continuous operation, base current should be limited to ≤ 10% of collector current (e.g., ≤ 100 mA at IC = 1 A) to avoid thermal runaway and ensure stable hFE behavior across temperature.
Can BCX56-10,115 be used in avalanche mode?
No - BCX56-10,115 is not rated or characterized for avalanche operation. Its VCEO = 80 V is a DC breakdown limit under open-base conditions; operation beyond this voltage risks irreversible junction damage. Inductive load snubbing must use external clamping components.
How does thermal performance change with PCB copper area?
Rth(j-a) improves from 250 K/W (standard footprint) to 93 K/W with a 6 cm² collector pad - reducing junction temperature rise by up to 157 °C at 1.35 W dissipation. This directly extends lifetime and enables higher ambient operating temperatures without derating.
Is BCX56-10,115 suitable for audio preamplifier stages?
Yes - its fT of 100–180 MHz and hFE stability support low-noise, low-distortion small-signal amplification up to ~100 kHz. However, it lacks specified noise figure or distortion data; for critical audio paths, purpose-built low-noise transistors are recommended.
BCX56-10,115 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:
- 1.25 W
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX56-10,115 FAQ
1.How can I place an order for BCX56-10,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX56-10,115 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 BCX56-10,115 reliable?
The price and inventory of BCX56-10,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX56-10,115 is usually 5 days.
3.What payment methods are accepted for BCX56-10,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX56-10,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX56-10,115?
BCX56-10,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX56-10,115 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 BCX56-10,115?
For technical support, including BCX56-10,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX56-10,115 requirements.
6.How does Aetrix verify that BCX56-10,115 is sourced from the original manufacturer or authorized distributors?
All BCX56-10,115 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 BCX56-10,115 meets industry standards.
7.What is the process for return or replacement of BCX56-10,115?
All BCX56-10,115 units undergo pre-shipment inspection (PSI). If there is an issue with BCX56-10,115, 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 BCX56-10,115 part is unused and in its original packaging.
Return procedure for BCX56-10,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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