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Nexperia USA Inc. BCX53-10TX
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- Part No.:
- BCX53-10TX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX53-10TX.pdf
- Description:
- TRANS PNP 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:8,768
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Product details
Overview
BCX53-10TX from Nexperia is a PNP bipolar power transistor in SOT89 (SC-62) package, rated for −80 V VCEO, −1 A continuous collector current, and 160–250 hFE at VCE = −2 V and IC = −150 mA. It serves as a high-side switch or MOSFET driver in automotive-grade linear regulators and power management circuits.
For engineers reviewing the BCX53-10TX datasheet, BCX53-10TX pinout, BCX53-10TX application, or BCX53-10TX equivalent, this device is selected for medium-power PNP switching where AEC-Q101 qualification, thermal robustness on FR4 PCBs, and defined DC current gain binning are critical design requirements.
Technical Context
This PNP transistor operates with open-base VCEO = −80 V and supports peak pulsed collector current up to −2 A (tp ≤ 1 ms). Its hFE binning (63–160) ensures predictable base drive sizing in saturated-switch applications.
Thermal performance depends on PCB mounting: Rth(j-a) ranges from 114 K/W (6 cm² collector pad) to 250 K/W (standard footprint), directly impacting safe operating area in sustained conduction modes.
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. |
| IC | −1 A - Continuous DC collector current; sets maximum load-handling capability in linear or switched mode. |
| hFE | 63–160 - DC current gain at VCE = −2 V, IC = −150 mA; determines required base drive current for saturation. |
| VCE(sat) | −500 mV max at IC = −500 mA, IB = −50 mA - Low saturation voltage minimizes conduction loss in switching applications. |
| Ptot | 1100 mW - Total power dissipation with 6 cm² copper pad; defines thermal derating envelope on standard PCBs. |
| fT | 140 MHz - Transition frequency at VCE = −5 V, IC = −50 mA; indicates usable bandwidth for moderate-speed switching. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors; supports under-hood deployment. |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, single-sided copper PCB mountable with optional thermal pad for collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter | Current exit terminal; connected to higher potential rail in high-side configuration. |
| 2 | Collector | Main current input terminal; thermally coupled to PCB pad for power dissipation management. |
| 3 | Base | Control terminal; requires negative bias relative to emitter to turn on PNP device. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE bins | BCX53-10TX offers 63–160 hFE, enabling precise base resistor selection for consistent saturation across production lots. |
| AEC-Q101 qualification | Validated for automotive use per stress test standard, supporting reliability-critical systems without additional qualification effort. |
| High power dissipation | Up to 1100 mW with 6 cm² collector pad-enables operation in space-constrained power stages without active cooling. |
| Low VCE(sat) | ≤ −500 mV at IC/IB = 10-reduces conduction loss and self-heating in high-duty-cycle switching. |
| SOT89 thermal design | Exposed collector tab allows direct thermal coupling to PCB copper, improving long-term reliability over ambient temperature swings. |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
Use Scenario: Pass transistor in adjustable positive-output linear regulators (e.g., LDOs with external PNP pass element). IC Role / Device Role / Timing Role: PNP pass transistor controlling output voltage via emitter-follower configuration with feedback loop. Use Value: −80 V VCEO supports wide input range; low VCE(sat) reduces dropout voltage and improves efficiency at full load. |
Use Scenario: Level-shifting and current-boosting stage driving N-channel MOSFET gates in half-bridge or high-side configurations. IC Role / Device Role / Timing Role: Active pull-down/pull-up switch translating logic-level signals to higher-voltage gate drive rails. Use Value: 140 MHz fT enables fast gate charging; AEC-Q101 rating ensures robustness in motor control and automotive power stages. |
| High-Side Switches | Power Management |
Use Scenario: Load switch controlling power delivery to subsystems (e.g., infotainment modules, sensors) from battery rail. IC Role / Device Role / Timing Role: Medium-power PNP switch placed between supply and load, controlled by microcontroller GPIO. Use Value: −1 A IC supports typical 500–800 mA loads; hFE binning ensures predictable base drive sizing across temperature. |
Use Scenario: Current-sense amplifier front-end or bias generator in multi-rail power management ICs. IC Role / Device Role / Timing Role: Precision current mirror or reference current source leveraging stable hFE and low leakage. Use Value: <10 µA ICBO at 150 °C ensures minimal error contribution; −5 V VEBO permits safe base biasing in multi-supply domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCX53-16TX | Higher hFE bin (100–250) at same test conditions; otherwise identical ratings and package. | Better suited for low-base-drive designs where microcontroller GPIO current is limited. | Select when minimizing base current is prioritized over gain consistency across temperature. |
| ZTX753 | TO-92 package, −100 V VCEO, −1 A IC, but no AEC-Q101 qualification and lower Ptot (625 mW). | Acceptable for non-automotive industrial or consumer applications with less stringent reliability requirements. | Choose only for cost-sensitive, non-automotive designs where thermal margin and qualification are secondary. |
Compared with BCX53-10TX, BCX53-16TX offers higher gain for reduced base drive, while ZTX753 trades automotive qualification and thermal capability for through-hole assembly and slightly higher voltage rating-neither is pin-compatible, requiring layout revision.
Availability
BCX53-10TX is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and high-side switches requiring stable component supply in automotive, industrial, and embedded power systems.
Supply support for BCX53-10TX 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 high-volume, high-reliability essential semiconductors for automotive, industrial, and computing markets.
The BCX53T series belongs to Nexperia's AEC-Q101-qualified discrete power transistor portfolio, engineered for robust medium-power switching in harsh environments where thermal stability and gain consistency are critical.
FAQ
What is the maximum allowable junction temperature for BCX53-10TX?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in the limiting values table. Operation above this temperature risks permanent degradation of hFE and increased leakage currents. Derating curves in Figure 1 show how power dissipation must be reduced above 25 °C ambient to maintain Tj ≤ 150 °C based on PCB copper area.
Is BCX53-10TX suitable for pulse-width modulation (PWM) switching?
Yes-its −2 A peak collector current rating (tp ≤ 1 ms) and 140 MHz fT support PWM operation up to several hundred kHz in low-duty-cycle applications. However, VCE(sat) and thermal resistance must be evaluated at actual duty cycle and frequency to avoid exceeding Tj limits during sustained conduction.
How does the SOT89 package affect thermal performance compared to TO-92?
The SOT89 package provides significantly better thermal performance than TO-92 due to its exposed collector tab, which enables direct thermal coupling to PCB copper. With a 6 cm² pad, Rth(j-a) is 114 K/W versus >300 K/W for TO-92-allowing ~3× higher continuous power dissipation under identical board conditions.
What marking code identifies BCX53-10TX on the device body?
BCX53-10TX is marked with the code "A2" on the top surface of the SOT89 package, per Table 5 in the datasheet. This distinguishes it from BCX53T (A4) and BCX53-16T (A3), enabling visual identification during inspection and assembly verification.
BCX53-10TX 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:
- 63 @ 150mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX53-10TX FAQ
1.How can I place an order for BCX53-10TX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX53-10TX 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 BCX53-10TX reliable?
The price and inventory of BCX53-10TX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX53-10TX is usually 5 days.
3.What payment methods are accepted for BCX53-10TX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX53-10TX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX53-10TX?
BCX53-10TX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX53-10TX 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 BCX53-10TX?
For technical support, including BCX53-10TX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX53-10TX requirements.
6.How does Aetrix verify that BCX53-10TX is sourced from the original manufacturer or authorized distributors?
All BCX53-10TX 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 BCX53-10TX meets industry standards.
7.What is the process for return or replacement of BCX53-10TX?
All BCX53-10TX units undergo pre-shipment inspection (PSI). If there is an issue with BCX53-10TX, 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 BCX53-10TX part is unused and in its original packaging.
Return procedure for BCX53-10TX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX53-10TX Tags
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