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Nexperia USA Inc. BCX53-16,146
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- Part No.:
- BCX53-16,146
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX53-16,146.pdf
- Description:
- TRANS PNP 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
BCX53-16,146 from Nexperia is a PNP medium-power bipolar junction transistor in SOT89 package, rated for −80 V VCEO, −1 A continuous collector current, and 100–250 DC current gain (hFE) at −150 mA/−2 V, with AEC-Q101 qualification for automotive-grade reliability. It serves as a high-side switch or linear regulator pass element in battery-powered industrial power management systems.
For engineers reviewing the BCX53-16,146 datasheet, BCX53-16,146 pinout, BCX53-16,146 application, or BCX53-16,146 equivalent, key selection criteria include its exposed-collector thermal pad for 1.35 W dissipation on 6 cm² copper, −0.5 V VCEsat at −500 mA/−50 mA drive, and guaranteed hFE ≥100 under automotive ambient conditions.
Technical Context
This PNP transistor operates in linear or saturated switching modes with fixed emitter-base and collector-base junction structures optimized for stable gain across −55 °C to +150 °C junction temperature. Its SOT89 package integrates an exposed collector tab that functions as both electrical terminal and thermal conduction path to PCB copper.
The device exhibits pulsed peak collector current capability of −2 A (tp ≤ 1 ms), base-emitter voltage of −1 V at −500 mA, and transition frequency fT = 145 MHz - enabling use in low-to-moderate-speed switching and analog amplification where thermal robustness is prioritized over RF performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −80 V: Maximum safe collector-emitter reverse bias before breakdown; enables use in 48 V automotive supply rails with margin. |
| IC | −1 A continuous: Sustained load current handling without derating when mounted on 6 cm² copper; supports medium-power switching loads. |
| hFE | 100–250 at −150 mA/−2 V: Tight DC current gain bin ensures predictable base drive requirements in linear regulators and MOSFET drivers. |
| VCEsat | −0.5 V max at −500 mA/−50 mA: Low saturation voltage minimizes conduction loss and heat generation in high-side switch applications. |
| Ptot | 1.35 W on 6 cm² FR4 copper: Highest power dissipation rating among BCX53 variants; requires dedicated thermal pad layout per Fig. 1 (curve 3). |
| fT | 145 MHz: Transition frequency confirms suitability for audio-frequency amplification and sub-100 kHz PWM switching control loops. |
| Rth(j-a) | 93 K/W on 6 cm² copper: Thermal resistance directly determines junction temperature rise (ΔT = P × Rth) 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 connection to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current exit node; connected to system ground or low-side reference in high-side switch configurations. |
| 2 | Collector | Exposed metal tab - must be soldered to ≥6 cm² copper pour for rated 1.35 W dissipation and low-impedance return path. |
| 3 | Base | Control input; requires current-limited drive (≤−0.3 A peak) to avoid damage during switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood environments including temperature cycling, humidity, and mechanical shock per JESD22 standards. |
| Three hFE bins | BCX53-16 guarantees hFE ≥100 at −150 mA, enabling precise base resistor selection without tolerance stacking in production designs. |
| Exposed collector thermal pad | Direct thermal interface to PCB reduces junction-to-ambient resistance by 40% vs. standard SOT89 footprint (93 K/W vs. 132 K/W). |
| High VCBO (−100 V) | Supports operation with collector referenced to voltages up to −100 V relative to base, enhancing noise immunity in noisy power domains. |
| Low VBE (−1 V) | Reduces required base drive voltage swing in 3.3 V or 5 V logic-controlled circuits, easing interface with microcontrollers and gate drivers. |
Applications
| Linear Voltage Regulators | High-Side Switches |
|---|---|
|
Use Scenario: Adjustable LDO output stage in automotive body control modules supplying 5 V/1 A to sensors and CAN transceivers. IC Role / Device Role / Timing Role: Pass transistor regulating output voltage via feedback-controlled base current; no timing function. Use Value: −0.5 V VCEsat limits dropout voltage and improves efficiency at full load, while AEC-Q101 ensures compliance with ISO 16750-2 pulse testing. |
Use Scenario: Load disconnect switch controlling 12 V/800 mA lighting circuits in commercial vehicle cab electronics. IC Role / Device Role / Timing Role: High-side PNP switch enabling ground-referenced load control with minimal external components. Use Value: Exposed collector pad sustains 1.35 W dissipation during inrush, eliminating need for heatsink or larger package in space-constrained enclosures. |
| Battery-Driven Devices | MOSFET Drivers |
|
Use Scenario: Reverse-polarity protection and load switching in portable medical monitors powered by Li-ion packs (8.4–12.6 V). IC Role / Device Role / Timing Role: Series PNP switch blocking reverse current and enabling controlled power-up sequencing. Use Value: −5 V VEBO rating prevents emitter-base breakdown during hot-swap events; −100 nA IEBO ensures negligible quiescent drain in standby mode. |
Use Scenario: Level-shifting driver stage for N-channel high-side MOSFETs in 24 V industrial motor controllers. IC Role / Device Role / Timing Role: Current amplifier translating low-voltage logic signals into high-current gate drive pulses. Use Value: 145 MHz fT supports clean 20 kHz PWM edge transitions; hFE ≥100 ensures <10 µs turn-on delay with 10 kΩ base resistor. |
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 | SOT223 package; same VCEO/IC/hFE specs but higher Rth(j-a) (100 K/W on 6 cm²); no exposed collector tab. | Larger footprint; less efficient thermal transfer; suitable only where board area permits and power dissipation ≤0.95 W. | Select if SOT223 is already standardized in your layout and thermal margin allows 25% lower Ptot. |
| ZTX753STZ | TO-92 package; −100 V VCEO, −1 A IC, hFE = 100–300; not AEC-Q101 qualified; Rth(j-a) = 200 K/W. | Through-hole mounting; unsuitable for automotive or high-reliability industrial use; limited to ≤0.5 W continuous operation. | Choose only for prototyping or non-automotive consumer applications where cost and through-hole assembly outweigh thermal and qualification needs. |
Compared with BCP53-16,115 and ZTX753STZ, BCX53-16,146 delivers superior thermal performance via its SOT89 exposed collector, maintains AEC-Q101 compliance for automotive deployment, and provides tighter hFE consistency critical for production-level base drive design.
Availability
BCX53-16,146 is available at Aetrix Electronics and suitable for automotive body electronics, industrial power management, and battery-powered medical devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BCX53-16,146 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
The BCX53 series belongs to Nexperia's AEC-Q101-qualified medium-power bipolar transistor portfolio, engineered specifically for automotive and industrial power control applications demanding robust thermal behavior and consistent DC gain.
FAQ
What is the maximum allowable junction temperature for BCX53-16,146?
The absolute maximum junction temperature is 150 °C per IEC 60134 limiting values. Operation above this threshold risks permanent parametric shift or failure. Derating is required above Tamb = 25 °C using the power derating curve in Figure 1 - e.g., at 100 °C ambient, maximum Ptot drops to ~0.7 W on 6 cm² copper.
Can BCX53-16,146 replace BCX53-10,146 in existing designs?
Yes, BCX53-16,146 can directly replace BCX53-10,146 because both share identical package, pinout, voltage/current ratings, and thermal characteristics. The only difference is hFE bin: BCX53-16 guarantees ≥100 (vs. ≥63 for BCX53-10), improving base drive predictability without circuit modification.
Is the exposed collector pad electrically isolated from other terminals?
No - the exposed collector pad is electrically connected to Pin 2 (collector) and must be routed to the same net. It is not insulated; therefore, PCB copper connected to this pad must be isolated from all other voltage domains except the collector potential to prevent short circuits.
Does BCX53-16,146 require a base resistor in switching applications?
Yes - a base resistor is mandatory to limit IB to ≤−0.3 A peak and ensure proper saturation. For example, driving from a 5 V MCU GPIO with VBE ≈ −1 V and target IC = −500 mA (hFE = 100), RB = (5 V − 1 V)/5 mA = 800 Ω minimum to achieve forced β = 10 and reliable turn-on.
BCX53-16,146 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
BCX53-16,146 FAQ
1.How can I place an order for BCX53-16,146 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX53-16,146 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 BCX53-16,146 reliable?
The price and inventory of BCX53-16,146 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX53-16,146 is usually 5 days.
3.What payment methods are accepted for BCX53-16,146?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX53-16,146 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX53-16,146?
BCX53-16,146 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX53-16,146 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 BCX53-16,146?
For technical support, including BCX53-16,146 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX53-16,146 requirements.
6.How does Aetrix verify that BCX53-16,146 is sourced from the original manufacturer or authorized distributors?
All BCX53-16,146 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 BCX53-16,146 meets industry standards.
7.What is the process for return or replacement of BCX53-16,146?
All BCX53-16,146 units undergo pre-shipment inspection (PSI). If there is an issue with BCX53-16,146, 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 BCX53-16,146 part is unused and in its original packaging.
Return procedure for BCX53-16,146:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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