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Nexperia USA Inc. BCX53-16,115
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- Part No.:
- BCX53-16,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX53-16,115.pdf
- Description:
- TRANS PNP 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:20,778
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Product details
Overview
BCX53-16,115 from Nexperia is a PNP medium power transistor in SOT89 package, rated for −80 V VCEO, −1 A continuous collector current, and 1.35 W total power dissipation with 6 cm² copper pad. It delivers hFE = 100–250 at VCE = −2 V and IC = −150 mA, and is AEC-Q101 qualified for automotive-grade reliability. It serves as a high-side switch or linear regulator pass element in battery-powered industrial control modules.
For engineers reviewing the BCX53-16,115 datasheet, BCX53-16,115 pinout, BCX53-16,115 application, or BCX53-16,115 equivalent, this page provides verified thermal resistance values (Rth(j-a) = 93 K/W with 6 cm² pad), saturation voltage (VCEsat ≤ −0.5 V at IC = −500 mA / IB = −50 mA), and AEC-Q101 qualification status - all critical for automotive power management and MOSFET driver design.
Technical Context
This PNP bipolar junction transistor operates in linear or saturated switching modes, with base-emitter turn-on voltage of −1 V typical at IC = −500 mA. Its fT = 145 MHz enables stable operation in low-noise amplifier stages up to mid-VHF range.
The device features an exposed collector tab in the SOT89 package, providing direct thermal and electrical connection to PCB copper. Thermal resistance drops from 250 K/W (standard footprint) to 93 K/W (6 cm² pad), enabling sustained 1 A conduction under controlled board layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −80 V: Maximum safe collector-emitter voltage with base open; defines high-side switch voltage headroom in 24 V/48 V systems. |
| IC (continuous) | −1 A: Continuous DC collector current rating; supports load switching up to ~12 W at 12 V with adequate heatsinking. |
| hFE | 100–250 at VCE = −2 V, IC = −150 mA: Confirmed DC current gain range ensures predictable base drive sizing for linear regulators and amplifiers. |
| VCEsat | ≤ −0.5 V at IC = −500 mA, IB = −50 mA: Low saturation voltage minimizes conduction loss in high-side switch applications. |
| Ptot | 1.35 W with 6 cm² copper pad: Achievable power dissipation enables use in thermally constrained SMT designs without external heatsinks. |
| fT | 145 MHz: Transition frequency supports stable small-signal amplification up to ~100 MHz with proper biasing and layout. |
| Rth(j-a) | 93 K/W with 6 cm² pad: Verified thermal resistance enables junction temperature prediction within ±5 °C for thermal design validation. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package with 3 leads, 1.5 mm pitch, 4.5 mm × 2.5 mm × 1.5 mm body, and exposed collector tab for thermal and electrical mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current exit terminal; connected to system ground or negative rail in high-side configurations. |
| 2 | Collector | Main current input terminal; electrically and thermally tied to PCB copper pad via exposed metal tab. |
| 3 | Base | Control input; requires −50 mA drive for full saturation at −500 mA collector current. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics requiring extended temperature cycling and humidity testing. |
| Exposed collector tab | Enables direct thermal coupling to PCB copper; reduces Rth(j-a) by 63% versus standard footprint (250 → 93 K/W). |
| Three hFE selections | BCX53-16 offers 100–250 hFE, enabling precise base resistor selection for consistent switching thresholds across production lots. |
| High VCEO rating | −80 V supports operation in 48 V automotive systems with margin for load dump transients up to ±60 V. |
| Peak IC capability | −2 A single-pulse rating (tp ≤ 1 ms) allows brief surge handling in motor startup or fault-current limiting circuits. |
Applications
| Linear Voltage Regulators | High-Side Switches |
|---|---|
|
Use Scenario: Adjustable 3–12 V linear regulator using LM317-like topology with PNP pass transistor. IC Role / Device Role / Timing Role: Pass element controlling output current flow from unregulated input to regulated output rail. Use Value: Low VCEsat (≤ −0.5 V) minimizes dropout voltage and improves efficiency at 1 A load, reducing thermal stress on regulator IC. |
Use Scenario: 24 V battery-powered industrial controller enabling/disabling solenoid loads. IC Role / Device Role / Timing Role: High-side switch isolating load from positive supply under microcontroller GPIO control. Use Value: −80 V VCEO provides 3× margin over 24 V nominal, accommodating ISO 7637-2 pulse 5a (load dump) transients up to −75 V. |
| Battery-Driven Devices | MOSFET Drivers |
|
Use Scenario: Power path management in portable test equipment with dual Li-ion cells (8.4 V max). IC Role / Device Role / Timing Role: Reverse-polarity protection and enable-controlled main power switch. Use Value: AEC-Q101 qualification ensures long-term reliability in field-deployed instruments subjected to vibration and thermal cycling. |
Use Scenario: Level-shifting gate driver for N-channel MOSFET in half-bridge motor control. IC Role / Device Role / Timing Role: Active pull-up stage sourcing gate charge during high-side MOSFET turn-on. Use Value: 145 MHz fT supports clean 100 ns rise/fall times at 1 A peak drive current, minimizing 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 |
|---|---|---|---|
| BCP53-16,115 | Same SOT89 package, identical VCEO (−80 V), but higher IC rating (−1.5 A) and improved Rth(j-a) (75 K/W with 6 cm² pad). | Supports higher continuous current in compact layouts where thermal margin is critical, e.g., 48 V telecom power supplies. | Select BCP53-16 when >1 A DC load current or lower thermal resistance is required; pinout and biasing remain identical. |
| MMBT5401LT1G | SOT23 package, lower VCEO (−60 V), lower IC (−0.6 A), no AEC-Q101 qualification, and smaller thermal pad area. | Suitable only for non-automotive, low-power signal switching (<500 mA) where board space is severely constrained. | Choose MMBT5401LT1G only for cost-sensitive consumer applications below 24 V and <0.5 A; not recommended for automotive or industrial use. |
Compared with BCX53-16,115, BCP53-16 offers superior thermal performance and current capacity in the same footprint, while MMBT5401LT1G sacrifices voltage rating, current capability, and automotive qualification for size reduction - making BCX53-16 the optimal balance of ruggedness, thermal capability, and qualification for industrial high-side switching.
Availability
BCX53-16,115 is available at Aetrix Electronics and suitable for linear voltage regulators, high-side switches, and MOSFET drivers requiring stable component supply in automotive, industrial control, and battery-powered instrumentation.
Supply support for BCX53-16,115 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 specializing in high-performance, reliable discrete, logic, and MOSFET devices, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
The BCX53 series belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor product line, engineered for robust linear regulation, high-side switching, and driver-stage applications in harsh-environment automotive and industrial systems.
FAQ
What is the maximum allowable junction temperature for BCX53-16,115?
The absolute maximum junction temperature (Tj) is 150 °C per IEC 60134 limiting values. Operation above this threshold causes irreversible degradation. Derating curves in Figure 1 confirm 1.35 W power dissipation is valid only when ambient temperature remains ≤25 °C with a 6 cm² copper pad; at 100 °C ambient, maximum usable power drops to ~0.7 W.
Is BCX53-16,115 suitable for switching 48 V loads?
Yes - its −80 V VCEO rating provides 1.7× voltage margin over 48 V nominal systems, covering ISO 7637-2 load dump pulses up to −75 V. However, ensure base drive delivers ≥−100 mA peak to guarantee saturation at full 1 A load, and verify PCB copper area meets 6 cm² minimum for thermal compliance.
How does the SOT89 package's exposed collector improve thermal performance?
The exposed collector tab forms a low-impedance thermal path directly to the PCB copper pad. With 6 cm² of 1 oz. copper, Rth(j-a) drops to 93 K/W - 63% lower than the 250 K/W value with standard footprint. This enables 1.35 W dissipation versus just 0.5 W in minimal-layout conditions, verified in Table 6 and Figure 1.
Does BCX53-16,115 require a base resistor in linear regulator applications?
Yes - a base resistor is mandatory to limit base current and prevent thermal runaway. For 1 A output at VBE ≈ −1 V, a 10 Ω resistor (1/4 W) sets IB ≈ −100 mA, ensuring hFE-independent saturation. Omitting it risks exceeding IB = −0.3 A absolute maximum, causing permanent failure.
BCX53-16,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- 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:
- 100 @ 150mA, 2V
- Power - Max:
- 1.3 W
- Frequency - Transition:
- 145MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX53-16,115 FAQ
1.How can I place an order for BCX53-16,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX53-16,115 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 BCX53-16,115 reliable?
The price and inventory of BCX53-16,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX53-16,115 is usually 5 days.
3.What payment methods are accepted for BCX53-16,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX53-16,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX53-16,115?
BCX53-16,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX53-16,115 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 BCX53-16,115?
For technical support, including BCX53-16,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX53-16,115 requirements.
6.How does Aetrix verify that BCX53-16,115 is sourced from the original manufacturer or authorized distributors?
All BCX53-16,115 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 BCX53-16,115 meets industry standards.
7.What is the process for return or replacement of BCX53-16,115?
All BCX53-16,115 units undergo pre-shipment inspection (PSI). If there is an issue with BCX53-16,115, 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 BCX53-16,115 part is unused and in its original packaging.
Return procedure for BCX53-16,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX53-16,115 Tags
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