My Inquiry
My Account
Nexperia USA Inc. BCP56TF
- Part No.:
- BCP56TF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP56TF.pdf
- Description:
- TRANS NPN 80V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:13,248
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BCP56TF from Nexperia is an NPN medium power transistor in SOT223 (SC-73) package, rated for 80 V VCEO, 1 A continuous collector current, and 1.8 W total power dissipation on 4-layer PCB with 1 cm² collector pad. It delivers hFE of 63–250 at IC = 150 mA and VCE = 2 V, and is used in linear voltage regulators and MOSFET drivers where robust thermal performance and stable DC gain are required.
For engineers reviewing the BCP56TF datasheet, BCP56TF pinout, BCP56TF application, or BCP56TF equivalent, this page provides verified pin functions, real-world thermal derating curves, safe operating area limits, and validated alternatives for high-side switch and power management designs.
Technical Context
The BCP56TF operates as a general-purpose NPN bipolar junction transistor optimized for medium-power switching and linear amplification. Its 80 V VCEO and 100 V VCBO support operation in 24 V and 48 V industrial bus systems, while its 155 MHz fT enables use in low-frequency switching control loops.
Thermal design is critical: Rth(j-a) ranges from 70 K/W (4-layer PCB, 1 cm² collector pad) to 209 K/W (standard FR4 single-sided copper), directly impacting maximum sustainable IC under ambient temperature constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Maximum collector-emitter voltage before breakdown; defines safe operation in 48 V supply rails with margin. |
| IC | 1 A - Continuous DC collector current; supports load switching up to ~12 W at 12 V with adequate heatsinking. |
| hFE | 63–250 - DC current gain range at VCE = 2 V, IC = 150 mA; enables predictable base drive sizing for saturation. |
| Ptot | 1.8 W - Max power dissipation on 4-layer PCB with 1 cm² collector pad; sets upper bound for IC×VCE product in linear mode. |
| fT | 155 MHz - Transition frequency at VCE = 5 V, IC = 50 mA; confirms suitability for <10 MHz switching control signals. |
| VCE(sat) | 500 mV - Collector-emitter saturation voltage at IC = 500 mA, IB = 50 mA; determines conduction loss in saturated switch applications. |
| Rth(j-a) | 70 K/W - Junction-to-ambient thermal resistance on optimized 4-layer PCB; enables ~25 °C rise at 1.8 W dissipation. |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with integrated heatsink tab (pin 4), designed for enhanced thermal transfer via large copper pour on PCB. Pin 4 is electrically connected to collector and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input; requires ~50 mA base current to saturate at 500 mA collector load. |
| 2 | Collector | Main current output terminal; internally tied to pin 4 for thermal and electrical connection. |
| 3 | Emiter | Current return path; common reference for base drive and load grounding. |
| 4 | Collector (Heatsink Tab) | Electrically identical to pin 2; must be soldered to ≥1 cm² copper area for rated Ptot. |
Key Features
| Feature | Design Value |
|---|---|
| High collector current capability | 1 A continuous rating enables direct driving of small relays or gate resistors for 30 A MOSFETs. |
| Three hFE selections | BCP56T (63–250), BCP56-10T (63–160), BCP56-16T (100–250) allow precise base bias tuning across production lots. |
| Enhanced thermal performance | 1.8 W dissipation on 4-layer board supports linear regulator dropout stages without external heatsink. |
| Robust SOA | Safe operating area supports 2 A peak pulses (tp ≤ 1 ms) at 40 V, enabling surge-tolerant power management. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Pass transistor in adjustable 3-terminal linear regulator delivering 1 A at 5–12 V output from 24 V input. IC Role / Device Role / Timing Role: NPN series pass element controlling output voltage via base bias from error amplifier. Use Value: 80 V VCEO accommodates 24 V input with 2× safety margin; 1.8 W Ptot allows >10 °C/W heatsink-free operation at full load. | Use Scenario: Level-shifting driver stage for N-channel high-side MOSFET in buck converter bootstrap circuit. IC Role / Device Role / Timing Role: Saturated switch translating logic-level signal to 12 V gate drive referenced to switching node. Use Value: 500 mV VCE(sat) minimizes voltage drop during turn-on; 155 MHz fT ensures fast edge propagation for <500 kHz switching. |
| High-Side Switches | Power Management |
Use Scenario: 24 V load switch controlling solenoid or indicator LED bank in industrial PLC output module. IC Role / Device Role / Timing Role: Medium-power NPN switch with collector tied to load supply, emitter to load, base driven by microcontroller. Use Value: 2 A ICM handles inrush currents; SOT223 pin 4 thermal tab enables reliable 1 A continuous operation without airflow. | Use Scenario: Current-sense amplifier front-end or enable switch in multi-rail PMIC sequencer. IC Role / Device Role / Timing Role: Precision current mirror component or rail isolation switch with defined hFE tolerance. Use Value: Tight hFE binning (63–250) reduces base current variation across units; 5 V VEBO prevents damage during reverse-bias transients. |
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 |
|---|---|---|---|
| BCP56-16T | Higher minimum hFE (100 vs. 63); same VCEO, IC, package | Better for low-base-drive designs requiring guaranteed gain at low IC | Select when base current budget is constrained and tighter hFE consistency is needed. |
| ZTX653 | Same SOT223 package; higher VCEO (100 V), lower hFE (20–200), higher fT (175 MHz) | Better for 48 V systems needing extra voltage margin and faster switching | Choose for 48 V bus applications or where higher transition frequency improves loop stability. |
Compared with BCP56TF, BCP56-16T offers higher guaranteed DC gain for reduced base drive overhead, while ZTX653 extends voltage headroom to 100 V and increases fT for improved dynamic response-both retain SOT223 thermal compatibility but address distinct design priorities.
Availability
BCP56TF is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and high-side switches requiring stable component supply, consistent hFE binning, and proven thermal performance in SOT223 layout.
Supply support for BCP56TF 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, delivering high-performance, reliable discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.
The BCP56T series belongs to Nexperia's medium-power bipolar transistor product line, engineered for robustness in linear regulation and switching applications where thermal reliability and parametric consistency are critical.
FAQ
What is the maximum allowable junction temperature for BCP56TF?
The absolute maximum junction temperature (Tj) is 150 °C per the datasheet Limiting Values table. Operation above this threshold risks permanent degradation of hFE and increased leakage. Derating is required above 25 °C ambient-e.g., at 75 °C ambient, max Ptot drops to ~1.0 W on a 4-layer PCB with 1 cm² collector pad.
Can BCP56TF replace BCP56-10T in existing designs?
Yes, BCP56TF can replace BCP56-10T because both share identical VCEO, IC, package, and pinout. However, BCP56TF has a wider hFE range (63–250 vs. 63–160), so base resistor values may need verification to ensure saturation across the extended gain band, especially at low IC.
Is BCP56TF qualified for automotive applications?
No. The revision history explicitly states that Rev. 3 removed automotive qualification. BCP56TF is non-automotive and not tested to AEC-Q101. For automotive use, Nexperia offers the -Q qualified variants (e.g., BCP56T-Q), which undergo additional stress testing and lot traceability per automotive standards.
How should the collector tab (pin 4) be connected on the PCB?
Pin 4 must be soldered to a dedicated copper pour of at least 1 cm² on the PCB to achieve the rated 1.8 W power dissipation. This pad should be thermally connected to internal ground or power planes if possible, but electrically it is tied to the collector-so routing must avoid unintended shorts to other nets. Thermal vias under the pad improve heat transfer to inner layers.
BCP56TF 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:
- 1.8 W
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP56TF FAQ
1.How can I place an order for BCP56TF through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP56TF 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 BCP56TF reliable?
The price and inventory of BCP56TF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP56TF is usually 5 days.
3.What payment methods are accepted for BCP56TF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP56TF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP56TF?
BCP56TF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP56TF 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 BCP56TF?
For technical support, including BCP56TF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP56TF requirements.
6.How does Aetrix verify that BCP56TF is sourced from the original manufacturer or authorized distributors?
All BCP56TF 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 BCP56TF meets industry standards.
7.What is the process for return or replacement of BCP56TF?
All BCP56TF units undergo pre-shipment inspection (PSI). If there is an issue with BCP56TF, 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 BCP56TF part is unused and in its original packaging.
Return procedure for BCP56TF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCP56TF Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
