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Nexperia USA Inc. BCP56/ZLF
- Part No.:
- BCP56/ZLF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP56/ZLF.pdf
- Description:
- TRANS NPN 80V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:8,803
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Product details
Overview
BCP56/ZLF from Nexperia is an NPN medium power transistor in SOT223 (SC-73) package, rated for 80 V VCEO, 1 A continuous collector current, and 1.35 W power dissipation with 6 cm² copper pad - used as low-side switch or MOSFET driver in linear voltage regulators and battery-powered systems.
For engineers reviewing the BCP56/ZLF datasheet, BCP56/ZLF pinout, BCP56/ZLF application, or BCP56/ZLF equivalent, this page delivers verified electrical parameters, thermal derating behavior, hFE binning options (63–250), and real-world design context for power management and amplifier circuits.
Technical Context
This device operates as a silicon NPN bipolar junction transistor optimized for medium-power switching and linear amplification. Its 80 V VCEO rating supports operation across 24 V and 48 V industrial rails, while its 100–250 hFE range at IC = 150 mA enables stable current gain in bias-sensitive drivers.
Thermal performance depends critically on PCB copper area: Rth(j-a) drops from 192 K/W (standard footprint) to 93 K/W (6 cm² collector pad), directly impacting safe operating area in sustained 500 mA loads with <500 mV VCE(sat) at IB = 50 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - supports switching up to 48 V DC supply rails with margin against transients |
| IC | 1 A continuous - suitable for driving logic-level MOSFET gates or small solenoids |
| hFE | 63–250 (BCP56-16 variant) - enables precise base current sizing in linear regulator pass elements |
| VCE(sat) | ≤500 mV at IC = 500 mA, IB = 50 mA - minimizes conduction loss in low-side switch configurations |
| fT | 100–180 MHz - sufficient for audio-frequency amplification and PWM gate driving up to ~100 kHz |
| Ptot | 1.35 W with 6 cm² copper pad - defines maximum steady-state power handling in thermally constrained PCB layouts |
| Rth(j-a) | 93 K/W (6 cm² pad) - determines junction temperature rise under 1 A DC load: ΔT ≈ 125 °C |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with integrated heatsink tab (pin 4), 4-terminal layout optimized for thermal transfer via large copper pour on PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input requiring ~50 mA drive for full saturation at 500 mA collector current |
| 2 | Collector | Main current path; electrically connected to exposed metal tab (pin 4) for thermal conduction |
| 3 | Emiter | Reference node for emitter-follower or common-emitter configurations; grounded in low-side switches |
| 4 | Collector (Tab) | Heatsink interface - must be soldered to ≥6 cm² copper area to achieve 1.35 W rating |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE bins (BCP56 / -10 / -16) | Enables consistent biasing across production batches without recalculating base resistors |
| 1.35 W Ptot with 6 cm² pad | Supports higher continuous current than standard SOT-23 devices without forced air cooling |
| Low VCE(sat) (≤500 mV) | Reduces power loss in high-duty-cycle switching applications such as LED dimming or motor control |
| 100 V VCBO | Provides headroom for inductive kickback suppression in relay or solenoid driver designs |
| SOT223 thermal pad integration | Enables direct thermal coupling to PCB plane - eliminates need for external heatsinks in space-constrained designs |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Pass transistor in adjustable 3–24 V linear regulators powering microcontrollers and sensors. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias network. Use Value: Stable regulation with ≤500 mV dropout at 1 A due to low VCE(sat) and predictable hFE binning. |
Use Scenario: Driving N-channel logic-level MOSFET gates in buck converter high-side or half-bridge stages. IC Role / Device Role / Timing Role: Current amplifier stage translating MCU GPIO output into 100–500 mA gate charge/discharge pulses. Use Value: Fast turn-on/turn-off enabled by 180 MHz fT and low base impedance, reducing switching losses. |
| Low-Side Switches | Battery-Driven Devices |
Use Scenario: Controlling 12 V automotive auxiliary loads (fans, pumps, LEDs) from microcontroller outputs. IC Role / Device Role / Timing Role: Ground-referenced switching element interfacing between digital logic and inductive/resistive loads. Use Value: Robust 2 A peak current capability handles motor startup surges; 80 V rating covers load-dump transients. |
Use Scenario: Power path management in portable medical monitors or handheld test equipment with Li-ion battery inputs. IC Role / Device Role / Timing Role: Load switch or battery protection circuit element enabling/disabling subsystem power rails. Use Value: Low quiescent current (<100 nA ICBO) preserves battery life during standby; thermal efficiency extends runtime under load. |
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 |
|---|---|---|---|
| BCP56-16 | Higher hFE bin (100–250 vs. 63–160 in BCP56-10); identical VCEO, IC, package | Better suited for low-base-drive applications like low-power linear regulators where base current must be minimized | Select when designing for minimal GPIO loading or tighter hFE tolerance requirements |
| ZTX653 | Same SOT223 package, but 100 V VCEO, 2 A IC, 1.5 W Ptot; hFE 100–300 at IC = 500 mA | Higher voltage/current headroom supports 48 V industrial bus switching and higher-power amplifiers | Choose when upgrading from BCP56/ZLF for increased surge tolerance or extended SOA in demanding environments |
Compared with BCP56/ZLF, BCP56-16 offers tighter hFE control for precision biasing, while ZTX653 provides higher voltage and current margins - both retain SOT223 compatibility but require validation of base drive and thermal layout.
Availability
BCP56/ZLF is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and low-side switches requiring stable component supply in industrial control, power tool, and battery management systems.
Supply support for BCP56/ZLF 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 and industrial-grade components.
The BCP56 series belongs to Nexperia's medium-power bipolar transistor product line, engineered for robust switching and amplification in cost-sensitive, thermally constrained power management applications.
FAQ
What is the maximum continuous collector current for BCP56/ZLF?
The absolute maximum continuous collector current is 1 A at Tamb ≤ 25 °C with 6 cm² copper pad. Derating applies above 25 °C ambient: power dissipation drops linearly to zero at 150 °C junction temperature, limiting usable IC in high-temperature enclosures.
Does BCP56/ZLF have automotive qualification?
No - BCP56/ZLF is not automotive-qualified. The datasheet explicitly states non-automotive qualification per Revision 11 (July 2022), and Nexperia offers separate -Q variants (e.g., BCP56-Q) for AEC-Q101-compliant applications.
How does the SOT223 thermal pad affect PCB layout?
Pin 4 (collector tab) must be soldered to a ≥6 cm² copper area to achieve the 1.35 W rating. Using smaller pads reduces Ptot to 1.00 W (1 cm²) or 0.65 W (standard footprint), directly impacting safe operating current and thermal stability in continuous operation.
Can BCP56/ZLF replace BC547 in existing designs?
No - BC547 is a TO-92 general-purpose transistor (100 mA IC, 45 V VCEO), while BCP56/ZLF is a medium-power SOT223 device (1 A, 80 V). Direct replacement requires board redesign for SOT223 footprint, thermal pad, and revised base drive due to higher current gain and saturation voltage differences.
BCP56/ZLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 1.35 W
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP56/ZLF FAQ
1.How can I place an order for BCP56/ZLF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP56/ZLF 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 BCP56/ZLF reliable?
The price and inventory of BCP56/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP56/ZLF is usually 5 days.
3.What payment methods are accepted for BCP56/ZLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP56/ZLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP56/ZLF?
BCP56/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP56/ZLF 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 BCP56/ZLF?
For technical support, including BCP56/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP56/ZLF requirements.
6.How does Aetrix verify that BCP56/ZLF is sourced from the original manufacturer or authorized distributors?
All BCP56/ZLF 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 BCP56/ZLF meets industry standards.
7.What is the process for return or replacement of BCP56/ZLF?
All BCP56/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with BCP56/ZLF, 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 BCP56/ZLF part is unused and in its original packaging.
Return procedure for BCP56/ZLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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