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Nexperia USA Inc. BCP56HX
- Part No.:
- BCP56HX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP56HX.pdf
- Description:
- TRANS NPN 80V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:118
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Product details
Overview
BCP56HX from Nexperia is an AEC-Q101-qualified NPN medium power transistor in SOT223 (SC-73) package, rated for 80 V VCEO, 1 A continuous collector current, and 175 °C junction temperature - used as low-side switch or MOSFET driver in automotive linear regulators and power management circuits.
For engineers reviewing the BCP56HX datasheet, BCP56HX pinout, BCP56HX application, or BCP56HX equivalent, this page delivers verified electrical parameters, thermal derating behavior, hFE binning options (63–250), safe operating area limits, and mounting-specific power dissipation values up to 2.2 W on 4-layer PCBs.
Technical Context
The BCP56HX operates as a silicon NPN bipolar junction transistor with base-controlled current amplification. Its design supports DC and pulsed switching up to 2 A peak (tp ≤ 1 ms), with VCE(sat) ≤ 500 mV at IC = 500 mA / IB = 50 mA and fT = 155 MHz at VCE = 5 V, IC = 50 mA.
Thermal performance is defined across five PCB mounting configurations: Rth(j-a) ranges from 69 K/W (4-layer copper, 1 cm² collector pad) to 207 K/W (standard FR4 single-sided footprint). It meets AEC-Q101 stress test requirements for automotive underhood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum allowable collector-emitter voltage with base open; defines safe blocking capability in low-side switch applications. |
| IC | 1 A continuous - Rated DC collector current; supports sustained operation in linear regulators and gate drivers without forced cooling. |
| hFE | 63–250 - Current gain range at VCE = 2 V, IC = 150 mA (pulsed); enables predictable base drive sizing across production lots. |
| VCE(sat) | ≤ 500 mV - Collector-emitter saturation voltage at IC = 500 mA / IB = 50 mA; ensures low conduction loss in switching mode. |
| Ptot | Up to 2.2 W - Total power dissipation on 4-layer FR4 PCB with 1 cm² collector pad; determines thermal layout requirements for high-duty-cycle use. |
| fT | 155 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; confirms suitability for medium-speed switching (e.g., <500 kHz PWM). |
| Tj(max) | 175 °C - Maximum junction temperature; validates operation in under-hood automotive environments without derating below −40 °C to +150 °C ambient. |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with integrated heatsink tab; 4-terminal configuration where pins 2 and 4 are internally connected to the collector for enhanced thermal and current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input node; requires current-limited drive (IB ≤ 200 mA) to avoid saturation delay or thermal runaway. |
| 2 | Collector | Main high-current output terminal; electrically and thermally tied to pin 4 and exposed metal tab for PCB heat sinking. |
| 3 | Emiter | Reference/return path for collector current; must be routed with low-inductance trace in switching applications. |
| 4 | Collector | Second collector connection; used in parallel with pin 2 to reduce bond wire resistance and improve thermal transfer to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood use per stress test standard; eliminates need for additional reliability screening in Tier-1 designs. |
| High-temperature operation | Junction rating up to 175 °C enables deployment in engine control units and body electronics without external thermal derating. |
| Multiple hFE bins | Three gain variants (BCP56H/BCP56-10H/BCP56-16H) allow precise base resistor selection and consistent switching thresholds across production. |
| Enhanced thermal dissipation | 2.2 W max power on optimized 4-layer PCB layout; reduces need for heatsinks in space-constrained automotive modules. |
| Peak current capability | 2 A single-pulse rating (tp ≤ 1 ms) supports inrush current limiting and short-duration load switching without device failure. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Pass transistor in adjustable 5–24 V linear regulators powering infotainment microcontrollers. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias; operates in active region for ripple suppression. Use Value: Low VCE(sat) minimizes dropout voltage; 175 °C Tj rating avoids thermal shutdown during sustained 1 A loads. |
Use Scenario: Gate driver stage for 40 V N-channel MOSFETs in BLDC motor control half-bridges. IC Role / Device Role / Timing Role: Low-side switch sourcing base/gate current to turn on high-current MOSFETs; driven by MCU GPIO. Use Value: 2 A peak current handles MOSFET gate charge (Qg) spikes; fast fT ensures sub-microsecond turn-on response. |
| Low-Side Switches | Power Management |
|
Use Scenario: Load switch for 12 V cabin lighting or HVAC actuators in automotive body control modules. IC Role / Device Role / Timing Role: High-current NPN switch connecting load to ground; controlled by CAN/LIN interface IC outputs. Use Value: Dual-collector pins (2 & 4) reduce on-resistance and thermal impedance; AEC-Q101 ensures 15+ year field reliability. |
Use Scenario: Current-sense amplifier front-end or battery protection circuitry in 12 V starter-battery monitoring systems. IC Role / Device Role / Timing Role: Amplifier active load or shunt regulator element; biased in linear mode for precision current mirroring. Use Value: Tight hFE tolerance (63–250) enables accurate current scaling; low Cc (4.5 pF) preserves bandwidth in feedback paths. |
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 |
|---|---|---|---|
| ON Semiconductor NSS12201LT1G | Lower VCEO (60 V), higher hFE min (100), SOT-23 package (0.35 W Ptot) | Limited to ≤60 V systems; unsuitable for 80 V automotive battery transients or high-power linear regulation. | Select only for space-constrained, low-voltage (<48 V), low-current (<300 mA) applications where thermal budget is minimal. |
| STMicroelectronics BUW12A | Higher VCEO (100 V), TO-126 package (1.5 W Ptot), non-AEC-Q101 | Requires through-hole assembly; lacks automotive qualification and SMT thermal advantages of SOT223. | Prefer for legacy industrial designs needing >80 V margin but not requiring AEC-Q101 or surface-mount manufacturability. |
Compared with NSS12201LT1G and BUW12A, BCP56HX uniquely combines 80 V rating, AEC-Q101 compliance, SOT223 thermal performance (up to 2.2 W), and dual-collector construction - making it the only option qualified for modern automotive low-side switching where voltage margin, reliability, and power density are jointly critical.
Availability
BCP56HX is available at Aetrix Electronics and suitable for automotive body control modules, industrial linear regulators, and embedded power management systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BCP56HX 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 BCP56H series belongs to Nexperia's AEC-Q101-qualified bipolar transistor portfolio, engineered specifically for robust, high-temperature switching and linear regulation in automotive power systems where reliability under thermal stress is mandatory.
FAQ
What is the maximum continuous collector current for BCP56HX?
The BCP56HX is rated for 1 A continuous collector current (IC) at Tamb = 25 °C with appropriate PCB thermal design. Derating applies above 25 °C ambient per Figure 1; at 100 °C ambient, usable IC drops to approximately 0.65 A on a standard FR4 board.
Does BCP56HX have automotive qualification?
Yes - BCP56HX is fully qualified to AEC-Q101 for discrete semiconductors, including stress testing for temperature cycling, humidity, HTRB, and ESD. This qualification covers operation from −55 °C to +175 °C junction temperature and supports automotive underhood deployment.
How does the dual-collector pin configuration (pins 2 and 4) affect layout?
Pins 2 and 4 are internally shorted to the same collector node and connected to the exposed metal tab. Layout best practice requires soldering both pins and the tab to a common large copper pour (≥1 cm²) to achieve rated Ptot = 2.2 W; omitting either pin reduces thermal performance by ≥30 %.
What hFE bin does BCP56HX correspond to?
BCP56HX corresponds to the standard gain bin: hFE = 63–250 at VCE = 2 V and IC = 150 mA (pulsed). This distinguishes it from BCP56-10H (63–160) and BCP56-16H (100–250); no marking code is assigned to the 'H' variant - it ships unmarked per Table 5.
BCP56HX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- 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:
- -
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP56HX FAQ
1.How can I place an order for BCP56HX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP56HX 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 BCP56HX reliable?
The price and inventory of BCP56HX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP56HX is usually 5 days.
3.What payment methods are accepted for BCP56HX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP56HX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP56HX?
BCP56HX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP56HX 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 BCP56HX?
For technical support, including BCP56HX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP56HX requirements.
6.How does Aetrix verify that BCP56HX is sourced from the original manufacturer or authorized distributors?
All BCP56HX 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 BCP56HX meets industry standards.
7.What is the process for return or replacement of BCP56HX?
All BCP56HX units undergo pre-shipment inspection (PSI). If there is an issue with BCP56HX, 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 BCP56HX part is unused and in its original packaging.
Return procedure for BCP56HX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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