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Nexperia USA Inc. BCX53-16TX
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- Part No.:
- BCX53-16TX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX53-16TX.pdf
- Description:
- TRANS PNP 80V 1A SOT-89
- Quantity:
- Payment:
- Shipping:
Inventory:4,055
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Product details
Overview
BCX53-16TX from Nexperia is a PNP power bipolar transistor in SOT89 (SC-62) package, rated for −80 V VCEO, −1 A continuous collector current, and 1100 mW 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 in high-side switch and linear regulator applications.
For engineers reviewing the BCX53-16TX datasheet, BCX53-16TX pinout, BCX53-16TX application, or BCX53-16TX equivalent, this device is selected for robust PNP switching in thermally constrained industrial power stages where DC current gain consistency, low VCE(sat), and junction temperature resilience up to 150 °C are critical.
Technical Context
This PNP transistor operates in active and saturation regions with defined breakdown limits: −100 V VCBO, −80 V VCEO, and −5 V VEBO. Its pulsed peak collector current reaches −2 A (tp ≤ 1 ms), and base current capability supports drive of downstream MOSFETs or relay coils with IB up to −200 mA continuous.
Thermal performance depends on PCB mounting: Rth(j-a) is 114 K/W with 6 cm² collector pad, enabling sustained 1 A operation under ambient temperatures up to 75 °C. Transient thermal impedance curves confirm suitability for repetitive pulse loads with duty cycles down to 1%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −80 V - Maximum safe collector-emitter voltage with base open; defines high-side switch blocking capability |
| IC | −1 A - Continuous DC collector current rating; supports medium-power load switching without forced cooling |
| hFE | 100–250 - DC current gain at VCE = −2 V, IC = −150 mA; ensures stable base drive design across production lot |
| VCE(sat) | ≤ −500 mV - Collector-emitter saturation voltage at IC = −500 mA, IB = −50 mA; minimizes conduction loss in linear regulators |
| Ptot | 1100 mW - Total power dissipation with 6 cm² FR4 copper pad; enables compact SMT layout with predictable thermal margin |
| fT | 140 MHz - Transition frequency at VCE = −5 V, IC = −50 mA; supports moderate-speed switching above audio band |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors; validated for under-hood temperature cycling |
Pinout & Package
SOT89 (SC-62) plastic surface-mount package: 4.5 mm × 2.5 mm × 1.5 mm body, 1.5 mm lead pitch, with integrated heat-dissipating tab on pin 2 (collector).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter (E) | Current exit terminal; connects to load ground or regulated output node in high-side configuration |
| 2 | Collector (C) | Main current path input; electrically and thermally tied to PCB copper pour for heat sinking |
| 3 | Base (B) | Control input; requires current-limited drive (≤ −200 mA) to ensure saturation without overdrive |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE bins | BCX53-16T offers 100–250 hFE, enabling precise base resistor selection for consistent turn-on behavior across production |
| High power dissipation | 1100 mW with 6 cm² copper pad - eliminates need for external heatsink in space-constrained 12 V/24 V industrial modules |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock - suitable for body control units and lighting drivers |
| Low VCE(sat) | ≤ −500 mV at IC = −500 mA - reduces dropout voltage in linear regulators and improves efficiency in MOSFET gate drivers |
Applications
| Linear Voltage Regulators | MOSFET Drivers |
|---|---|
|
Use Scenario: Pass transistor in adjustable 3-terminal linear regulator supplying 5 V/1 A to microcontroller subsystems. IC Role / Device Role / Timing Role: PNP pass element controlling output voltage via emitter-follower configuration with feedback to base. Use Value: Low VCE(sat) minimizes dropout; hFE binning ensures predictable base drive current across temperature. |
Use Scenario: Driving N-channel logic-level MOSFET gates in half-bridge motor control stage. IC Role / Device Role / Timing Role: High-side level shifter and current amplifier converting 3.3 V logic signal to −12 V gate pull-down. Use Value: −1 A IC rating handles gate charge surge; fast fT supports PWM frequencies up to 100 kHz. |
| High-Side Switches | Power Management |
|
Use Scenario: Load switch enabling/disabling 24 V solenoid or LED string in industrial PLC output module. IC Role / Device Role / Timing Role: PNP switch controlled by microcontroller GPIO through base resistor; collector tied to 24 V rail. Use Value: −80 V VCEO provides 2× safety margin over 24 V supply; AEC-Q101 ensures long-term reliability in harsh environments. |
Use Scenario: Current-sense amplifier front-end or bias generator in multi-rail power sequencer. IC Role / Device Role / Timing Role: Active current mirror or precision current source configured with matched resistors and feedback. Use Value: Tight hFE range (100–250) and low ICBO (<10 µA) enable stable reference current generation over −55 °C to 125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCX53-10TX | hFE = 63–160 at same test conditions; lower minimum gain than BCX53-16TX | Less suitable for low-base-drive designs requiring guaranteed minimum current amplification | Select when base drive current budget is ample and cost optimization is prioritized |
| ZTX753 | TO-92 package; VCEO = −60 V; IC = −1 A; hFE = 100–800 - wider gain spread and lower voltage rating | Not drop-in compatible due to through-hole TO-92 footprint and reduced blocking voltage | Choose only if legacy through-hole assembly is required and −60 V rating suffices |
Compared with BCX53-10TX and ZTX753, BCX53-16TX provides higher guaranteed hFE and superior thermal performance in SMT form factor, making it optimal for new designs demanding predictable gain and automotive-grade reliability in compact layouts.
Availability
BCX53-16TX is available at Aetrix Electronics and suitable for linear voltage regulators, MOSFET drivers, and high-side switches requiring stable component supply with automotive-grade qualification and SOT89 thermal performance.
Supply support for BCX53-16TX 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 consumer markets.
The BCX53T series belongs to Nexperia's AEC-Q101-qualified power transistor portfolio, engineered for robust PNP switching in thermally demanding power management and load control applications.
FAQ
What is the maximum allowable junction temperature for BCX53-16TX?
The absolute maximum junction temperature is 150 °C, as specified in the limiting values table. Operation at this temperature requires full derating of power dissipation per Figure 1, and thermal design must ensure Rth(j-a) ≤ 114 K/W using a 6 cm² copper pad on FR4 PCB to maintain safe operating area compliance.
Can BCX53-16TX replace BCX53-10TX in an existing design?
Yes, BCX53-16TX is pin-compatible and electrically substitutable for BCX53-10TX, but its higher minimum hFE (100 vs. 63) may reduce required base drive current by up to 40%. Verify base resistor value and saturation margin under worst-case VBE and temperature to avoid overdrive or unintended partial turn-on.
Is BCX53-16TX suitable for switching 24 V inductive loads?
Yes - its −80 V VCEO provides 3.3× voltage margin over 24 V, and −2 A peak collector current handles typical inductive kickback. Use a flyback diode across the load and ensure base drive remains active during turn-off to prevent secondary breakdown during voltage overshoot.
How does the SOT89 package affect thermal performance compared to TO-92?
The SOT89 package delivers up to 2.5× lower Rth(j-a) (114 K/W vs. ~250 K/W for TO-92) due to its exposed collector tab soldered directly to PCB copper. This enables 1 A continuous operation without heatsink, whereas TO-92 variants require significant board area or external cooling for equivalent current handling.
BCX53-16TX 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:
- 500 mW
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89
BCX53-16TX FAQ
1.How can I place an order for BCX53-16TX through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX53-16TX 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 BCX53-16TX reliable?
The price and inventory of BCX53-16TX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX53-16TX is usually 5 days.
3.What payment methods are accepted for BCX53-16TX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX53-16TX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX53-16TX?
BCX53-16TX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX53-16TX 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 BCX53-16TX?
For technical support, including BCX53-16TX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX53-16TX requirements.
6.How does Aetrix verify that BCX53-16TX is sourced from the original manufacturer or authorized distributors?
All BCX53-16TX 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 BCX53-16TX meets industry standards.
7.What is the process for return or replacement of BCX53-16TX?
All BCX53-16TX units undergo pre-shipment inspection (PSI). If there is an issue with BCX53-16TX, 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 BCX53-16TX part is unused and in its original packaging.
Return procedure for BCX53-16TX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX53-16TX Tags
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