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Nexperia USA Inc. BCP51-16,115
- Part No.:
- BCP51-16,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP51-16,115.pdf
- Description:
- TRANS PNP 45V 1A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
BCP51-16,115 from Nexperia is a PNP medium power transistor in SOT223 (SC-73) surface-mount package, rated for −45 V VCEO, −1 A continuous collector current, and 0.65 W power dissipation on standard FR4 PCB. It features hFE selection of 100–250 at VCE = −2 V and IC = −150 mA, AEC-Q101 qualification, and exposed collector pad for thermal and electrical conduction. It serves as a high-side switch or linear regulator pass element in automotive and industrial power management.
For engineers reviewing the BCP51-16,115 datasheet, BCP51-16,115 pinout, BCP51-16,115 application, or BCP51-16,115 equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in battery-driven devices and MOSFET drivers, and confirmed alternative parts with documented parameter differences.
Technical Context
This device operates as a silicon PNP bipolar junction transistor optimized for medium-power linear and switching applications. Its SOT223 package integrates an exposed collector pad acting as both thermal heatsink and low-impedance current path, enabling stable operation up to 150 °C junction temperature.
The hFE binning (−16) guarantees DC current gain between 100 and 250 under standardized conditions (VCE = −2 V, IC = −150 mA), supporting predictable biasing in voltage regulators and amplifier stages without external gain compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −45 V: Maximum safe collector-emitter voltage with base open; defines upper rail limit in high-side switch designs. |
| IC | −1 A continuous: Rated DC collector current; supports load switching up to ~1 A in thermally adequate layouts. |
| hFE (−16 bin) | 100–250 at VCE = −2 V, IC = −150 mA: Tighter gain spread enables consistent bias network design across production lots. |
| Ptot (std FR4) | 0.65 W: Total power dissipation on single-sided FR4 with standard footprint; requires thermal relief for >500 mW sustained operation. |
| Rth(j-a) | 192 K/W (std FR4): Junction-to-ambient thermal resistance; determines temperature rise per watt under natural convection. |
| VCE(sat) | −0.5 V max at IC = −500 mA, IB = −50 mA: Low saturation voltage minimizes conduction loss in switching applications. |
| fT | 145 MHz: Transition frequency; supports stable operation in audio and low-MHz signal amplification stages. |
Pinout & Package
SOT223 (SC-73) plastic surface-mounted package with 4 leads: three functional terminals (base, collector, emitter) plus an exposed collector pad (lead 4) providing enhanced thermal conduction and low-inductance current return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input for forward-active and saturation biasing; requires current-limited drive to avoid exceeding IB = −0.3 A absolute max. |
| 2 | Collector | Main high-current output node; electrically and thermally connected to exposed pad (pin 4) for efficient heat transfer to PCB copper. |
| 3 | Emiter | Reference terminal for PNP operation; tied to higher potential rail in high-side configurations; carries full load current. |
| 4 | Collector (exposed pad) | Thermal and electrical extension of pin 2; must be soldered to ≥1 cm² copper pour for rated power handling and thermal reliability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress - suitable for under-hood and infotainment power stages. |
| hFE selection (−16) | Guaranteed 100–250 gain range at IC = −150 mA enables precise current mirror or regulator loop design without post-manufacturing sorting. |
| Exposed collector pad | Reduces Rth(j-a) by up to 50% vs. standard SOT packages; allows 1.35 W dissipation with 6 cm² copper pad - critical for space-constrained power modules. |
| High power capability | 0.65 W on standard FR4 and 1.35 W with optimized layout exceeds typical SOT-23/89 limits - supports compact linear regulator and driver implementations. |
| Low VCE(sat) | ≤−0.5 V at IC/IB = 10 ensures <100 mW conduction loss at 500 mA - improves efficiency in always-on battery management circuits. |
Applications
| Linear Voltage Regulators | High-Side Switches |
|---|---|
Use Scenario: Adjustable LDO or series pass element in 12 V automotive systems requiring low dropout and thermal stability. IC Role / Device Role / Timing Role: PNP pass transistor controlling output voltage via feedback loop; handles full load current while dissipating variable power. Use Value: −45 V rating accommodates load-dump transients; exposed pad maintains Tj < 125 °C at 700 mA with 2 cm² copper. |
Use Scenario: Power enable switch for microcontroller peripherals or sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: High-side current source controlled by MCU GPIO; provides reverse-polarity protection and fast turn-off. Use Value: −0.5 V VCE(sat) limits voltage drop to <6% at 500 mA; AEC-Q101 ensures 15-year field reliability in harsh environments. |
| Battery-Driven Devices | MOSFET Drivers |
Use Scenario: Load switch in portable medical monitors or handheld test equipment powered by Li-ion packs (3.0–4.2 V). IC Role / Device Role / Timing Role: PNP-based soft-start and overcurrent limiting stage preceding main DC/DC converter. Use Value: hFE bin (−16) ensures consistent gate charge delivery across temperature; −5 V VEBO prevents emitter-base breakdown during deep discharge. |
Use Scenario: Level-shifting driver for N-channel high-side MOSFETs in half-bridge motor controllers. IC Role / Device Role / Timing Role: Fast-switching PNP stage pulling gate low while isolating logic-level control from high-voltage drain rail. Use Value: 145 MHz fT supports clean 100 kHz PWM edge transitions; low Cc (15 pF) minimizes Miller effect-induced shoot-through risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCX51-16,115 | SOT89 package; lower Ptot (0.50 W std FR4); same VCEO/IC/hFE specs but reduced thermal mass. | Better suited for space-constrained PCBs where footprint area is limited but thermal pad area cannot be expanded. | Select when board real estate is tighter than thermal budget; verify Rth(j-a) = 250 K/W meets ambient derating requirements. |
| BC51PA,115 | SOT1061 package; smaller footprint (2 × 2 × 0.65 mm); higher Rth(j-a) (298 K/W std FR4); same electrical ratings. | Targeted at ultra-thin consumer electronics where height and area are critical, and peak power is intermittent. | Choose only for pulsed or low-duty-cycle loads; requires 4-layer PCB or large thermal vias to approach BCP51's steady-state capability. |
Compared with BCX51-16,115 and BC51PA,115, the BCP51-16,115 offers superior thermal performance via its SOT223 exposed pad, enabling higher continuous current in cost-sensitive industrial designs without multilayer boards or thermal vias.
Availability
BCP51-16,115 is available at Aetrix Electronics and suitable for linear voltage regulators, high-side switches, and battery-driven devices requiring stable component supply across automotive, industrial, and embedded OEM programs.
Supply support for BCP51-16,115 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 essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
The BCP51 series belongs to Nexperia's medium-power discrete transistor product line, engineered for robustness in power management and switching applications where thermal resilience and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum allowable junction temperature for BCP51-16,115?
The absolute maximum junction temperature is 150 °C per the datasheet Limiting Values table. Operation above this threshold risks permanent degradation of hFE and increased leakage. Derating curves in Figure 1 show power must be reduced linearly above 25 °C ambient to maintain Tj ≤ 150 °C - e.g., 0.45 W max at 75 °C ambient on standard FR4.
Is BCP51-16,115 pin-compatible with BCX51-16,115?
No - BCP51-16,115 uses SOT223 (pin 1=base, 2=collector, 3=emitter, 4=collector pad), while BCX51-16,115 uses SOT89 (pin 1=emitter, 2=collector, 3=base). Layouts are not interchangeable; PCB redesign is required due to different pinouts, thermal pad geometry, and footprint dimensions.
Does the hFE bin "−16" affect switching speed?
No - the −16 bin specifies DC current gain (100–250 at IC = −150 mA), not frequency response. Switching speed is governed by fT (145 MHz), Cc (15 pF), and internal carrier lifetime. All BCP51 variants share identical transition frequency and capacitance, so switching behavior remains consistent across hFE bins.
Can BCP51-16,115 replace BC557 in a circuit?
Only with verification - BC557 is a general-purpose PNP (−50 V, −100 mA, hFE 125–800) in TO-92, while BCP51-16,115 is a medium-power part (−45 V, −1 A, hFE 100–250) in SOT223. Differences in current rating, thermal design, and package require re-evaluation of bias networks, PCB copper, and transient handling before substitution.
BCP51-16,115 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:
- PNP
- 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:
- 100 @ 150mA, 2V
- Power - Max:
- 1 W
- Frequency - Transition:
- 145MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
BCP51-16,115 FAQ
1.How can I place an order for BCP51-16,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP51-16,115 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 BCP51-16,115 reliable?
The price and inventory of BCP51-16,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP51-16,115 is usually 5 days.
3.What payment methods are accepted for BCP51-16,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP51-16,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP51-16,115?
BCP51-16,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP51-16,115 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 BCP51-16,115?
For technical support, including BCP51-16,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP51-16,115 requirements.
6.How does Aetrix verify that BCP51-16,115 is sourced from the original manufacturer or authorized distributors?
All BCP51-16,115 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 BCP51-16,115 meets industry standards.
7.What is the process for return or replacement of BCP51-16,115?
All BCP51-16,115 units undergo pre-shipment inspection (PSI). If there is an issue with BCP51-16,115, 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 BCP51-16,115 part is unused and in its original packaging.
Return procedure for BCP51-16,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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