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Nexperia USA Inc. BCP54-10,135
- Part No.:
- BCP54-10,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP54-10,135.pdf
- Description:
- TRANS NPN 45V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:20,045
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Product details
Overview
BCP54-10,135 from Nexperia is an AEC-Q101 qualified NPN medium power transistor in SOT223 (SC-73) package, rated for 45 V VCEO, 1 A continuous collector current, and 160 hFE at IC = 150 mA / VCE = 2 V. It serves as a low-side switch or MOSFET driver in automotive power management and linear regulators.
For engineers reviewing the BCP54-10,135 datasheet, BCP54-10,135 pinout, BCP54-10,135 application, or BCP54-10,135 equivalent, this page delivers verified electrical parameters, thermal derating behavior, junction-to-ambient resistance under three PCB mounting conditions, and validated automotive-grade reliability data per AEC-Q101.
Technical Context
This transistor operates as a single NPN silicon switching device with base-controlled current amplification. Its hFE range of 63–160 at 150 mA enables predictable gain in linear and saturated switching modes, while its 2 A peak collector current supports short-duration load transients.
Thermal performance is defined across three PCB mounting configurations: standard footprint (1.35 W max), 1 cm² collector pad (1.00 W), and 6 cm² pad (0.65 W), with corresponding Rth(j-a) values of 93 K/W, 125 K/W, and 195 K/W - directly linking layout to safe operating area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; defines safe DC/peak voltage headroom in low-side switch applications. |
| IC | 1 A continuous - Sustained collector current rating; determines maximum steady-state load drive capability. |
| hFE | 63–160 at VCE = 2 V, IC = 150 mA - Confirmed DC current gain range; sets required base drive current for saturation in switching designs. |
| VCE(sat) | ≤ 0.5 V at IC = 500 mA, IB = 50 mA - Verified saturation voltage; directly impacts conduction loss and thermal rise in on-state operation. |
| fT | 100–180 MHz - Transition frequency; confirms usable bandwidth for moderate-speed switching (e.g., PWM up to ~10 MHz with margin). |
| Rth(j-a) | 93 K/W (6 cm² pad) - Junction-to-ambient thermal resistance under optimized layout; used to calculate ΔTj = Ptot × Rth(j-a). |
| AEC-Q101 | Qualified - Validated for automotive temperature cycling, HTRB, and ESD stress; supports deployment in under-hood ECUs without additional qualification. |
Pinout & Package
SOT223 (SC-73) surface-mount plastic package with 4 leads: pins 1 (base), 2 (collector), 3 (emitter), and 4 (collector). The dual-collector configuration enhances thermal dissipation via extended copper pad contact.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input node; requires ≥50 mA base drive for guaranteed saturation at 500 mA collector load. |
| 2 | Collector | Main high-current output terminal; electrically tied to pin 4 for improved thermal path to PCB copper. |
| 3 | Emitter | Reference node for biasing; connected to ground or low-side return path in switch configurations. |
| 4 | Collector | Second collector terminal; must be soldered to ≥1 cm² copper pour to achieve rated 1.00 W power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| High power dissipation | Up to 1.35 W on standard FR4 PCB - enables compact thermal design without heatsinks in <1 W applications. |
| Three hFE selections | BCP54 (63–250), BCP54-10 (63–160), BCP54-16 (100–250) - allows precise gain matching to reduce base drive overhead or improve linearity. |
| AEC-Q101 qualification | Validated per stress test standard for discrete semiconductors - eliminates need for customer-level automotive requalification. |
| Dual-collector SOT223 | Pins 2 and 4 both connect to collector - doubles thermal interface area, lowering effective Rth(j-sp) to 16 K/W in free air. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Pass transistor in adjustable LDOs delivering 1–500 mA to microcontrollers or sensors. IC Role / Device Role / Timing Role: Series pass element controlling output voltage via base bias; operates in linear region with VCE < 5 V. Use Value: Low VCE(sat) (≤0.5 V) minimizes dropout voltage and improves efficiency at full load. |
Use Scenario: Gate driver stage for N-channel power MOSFETs in DC-DC converters or motor control H-bridges. IC Role / Device Role / Timing Role: Current amplifier translating logic-level signals into 0.5–1 A gate charge/discharge pulses. Use Value: 2 A peak collector current supports fast MOSFET turn-on with <100 ns rise time in 5 V systems. |
| Low-Side Switches | Battery-Driven Devices |
|
Use Scenario: Load switch enabling/disabling 12 V automotive accessories (fans, solenoids, LEDs) controlled by MCU GPIO. IC Role / Device Role / Timing Role: Saturated switch connecting load to ground; driven with IB/IC = 0.1 ratio. Use Value: Confirmed 0.5 V VCE(sat) limits conduction loss to ≤500 mW at 1 A, reducing thermal stress in sealed enclosures. |
Use Scenario: Power path control in portable medical monitors, handheld test equipment, or IoT sensors powered by Li-ion or alkaline cells. IC Role / Device Role / Timing Role: Reverse-polarity protection or battery disconnect switch; biased in cutoff or saturation only. Use Value: AEC-Q101 qualification ensures robustness across -40 °C to +125 °C ambient, critical for field-deployed battery systems. |
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 |
|---|---|---|---|
| BCP54-16,135 | Higher hFE range (100–250 vs. 63–160); identical VCEO, IC, and package. | Better suited for low-base-drive circuits (e.g., direct MCU GPIO drive) where gain margin is critical. | Select when base current is constrained below 10 mA at IC = 150 mA; avoid if gain variation causes instability in feedback loops. |
| ZTX653STZ | TO-92 package, 60 V VCEO, 1 A IC, hFE = 100–300; no AEC-Q101 qualification. | Through-hole alternative for prototyping or non-automotive industrial use; lacks automotive thermal and reliability validation. | Choose only for cost-sensitive, non-automotive applications where SMT assembly is not required and qualification is unnecessary. |
Compared with BCP54-10,135, the BCP54-16,135 offers higher gain for reduced base drive but identical voltage/current ratings, while ZTX653STZ trades AEC-Q101 compliance and SMT compatibility for through-hole convenience and wider VCEO.
Availability
BCP54-10,135 is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and low-side switches requiring stable component supply in automotive, industrial, and battery-powered designs.
Supply support for BCP54-10,135 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 system functionality, delivering high-performance, reliable discrete, logic, and MOSFET solutions.
The BCP54 series belongs to Nexperia's AEC-Q101 qualified medium-power bipolar transistor product line, engineered for robust switching and linear operation in automotive power management and industrial control systems.
FAQ
What is the maximum allowable junction temperature for BCP54-10,135?
The absolute maximum junction temperature is 150 °C, as specified in the Limiting Values table. Operation above this temperature risks permanent parametric shift or failure. Derating curves in Figure 1 show that total power dissipation must be reduced linearly above 25 °C ambient - e.g., to 0.8 W at 75 °C ambient on a 6 cm² pad.
Can BCP54-10,135 replace BCP54-16,135 in existing designs?
No direct drop-in replacement: BCP54-10,135 has lower hFE (63–160 vs. 100–250), so base drive current must increase by ~1.6× to maintain the same collector current in linear mode. In saturated switching, verify VCE(sat) remains ≤0.5 V at the new IB/IC ratio using Figure 8.
Is the SOT223 package lead-free and RoHS compliant?
Yes - Nexperia confirms BCP54-10,135 meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations. The device uses SnAgCu (SAC305) solder finish and complies with JEDEC J-STD-020 moisture sensitivity level MSL3 at 260 °C peak reflow.
How does thermal resistance change with PCB copper area?
Rth(j-a) drops from 195 K/W (standard footprint) to 125 K/W (1 cm² collector pad) to 93 K/W (6 cm² pad), per Table 6. This 48% reduction enables 1.35 W → 0.65 W power handling improvement - meaning doubling copper area cuts thermal resistance by ~30%, not linearly.
BCP54-10,135 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):
- 45 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:
- 650 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP54-10,135 FAQ
1.How can I place an order for BCP54-10,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP54-10,135 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 BCP54-10,135 reliable?
The price and inventory of BCP54-10,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP54-10,135 is usually 5 days.
3.What payment methods are accepted for BCP54-10,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP54-10,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP54-10,135?
BCP54-10,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP54-10,135 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 BCP54-10,135?
For technical support, including BCP54-10,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP54-10,135 requirements.
6.How does Aetrix verify that BCP54-10,135 is sourced from the original manufacturer or authorized distributors?
All BCP54-10,135 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 BCP54-10,135 meets industry standards.
7.What is the process for return or replacement of BCP54-10,135?
All BCP54-10,135 units undergo pre-shipment inspection (PSI). If there is an issue with BCP54-10,135, 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 BCP54-10,135 part is unused and in its original packaging.
Return procedure for BCP54-10,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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