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Diodes Incorporated BCX5616QTA
- Part No.:
- BCX5616QTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX5616QTA.pdf
- Description:
- TRANS NPN 80V 1A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:53,057
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Product details
Overview
BCX5616QTA from Diodes Incorporated is an AEC-Q101-qualified 80V NPN bipolar junction transistor in SOT89 package, rated for 1A continuous collector current and 2A peak pulse current, with VCE(sat) < 500 mV at 500 mA/50 mA drive-designed for automotive medium-power switching in engine control modules and body electronics.
For engineers reviewing the BCX5616QTA datasheet, BCX5616QTA pinout, BCX5616QTA application, or BCX5616QTA equivalent, this page delivers verified electrical parameters, thermal derating curves, automotive qualification status, SOT89 terminal mapping, and direct-fit alternatives for high-reliability power switching designs.
Technical Context
This NPN BJT uses epitaxial planar die construction to achieve robust breakdown performance (VCEO = 80 V, VCBO = 100 V) and low saturation voltage under sustained load. Its hFE ranges from 75–250 across 5 mA–500 mA collector currents, supporting stable DC gain in linear and switching modes.
Thermal design is enabled by a low RθJL of 13 °C/W to the exposed collector pad and scalable RθJA (125–60 °C/W) depending on PCB copper area (15 mm × 15 mm to 50 mm × 50 mm), making it suitable for thermally constrained automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 80 V - Withstands transient overvoltage up to 80 V in automotive 12 V systems without breakdown. |
| IC (continuous) | 1 A - Supports sustained switching of solenoids, relays, and LED arrays in body control units. |
| VCE(sat) | < 500 mV @ 500 mA/50 mA - Minimizes conduction loss and self-heating during active switching. |
| hFE | 75–250 - Ensures reliable base drive margin across production lots and temperature range (−55°C to +150°C). |
| fT | 150 MHz - Enables use in moderate-frequency amplification (e.g., AF drivers) and fast-switching applications. |
| RθJL | 13 °C/W - Enables efficient heat transfer from junction to PCB via exposed collector pad in SOT89. |
| ESD HBM | 4,000 V - Meets automotive ESD immunity requirements per JEDEC JESD22-A114 Class 3A. |
Pinout & Package
Package: SOT89 - Molded plastic, green compound (UL 94V-0), matte tin finish leads, 0.055 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current path output / thermal interface | Exposed metal tab serves as primary collector connection and heatsink interface to PCB copper. |
| Emitter | Current return path / reference node | Provides low-impedance ground return for switched loads; tied to system GND in most configurations. |
| Base | Control input / gate signal interface | Receives TTL- or microcontroller-compatible drive; requires current-limiting resistor for safe biasing. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF16949 manufacturing compliance. |
| Low VCE(sat) | < 500 mV at 500 mA ensures ≤250 mW conduction loss, reducing thermal stress in sealed enclosures. |
| High ICM | 2 A peak pulse rating supports inrush current handling for motors and capacitive loads. |
| Green construction | Halogen- and antimony-free, fully RoHS-compliant (≤900 ppm Br/Cl, ≤1000 ppm Sb). |
Applications
| Engine Control Unit (ECU) Switching | Body Control Module (BCM) Load Driver |
|---|---|
Use Scenario: Driving fuel injector solenoids and ignition coil primaries in 12 V automotive power trains. IC Role / Device Role / Timing Role: Medium-power NPN switch controlling high-current inductive loads with precise on/off timing. Use Value: 80 V VCEO withstands load-dump transients; low VCE(sat) reduces energy loss during extended duty cycles. |
Use Scenario: Controlling door locks, window lift motors, and interior lighting in vehicle body electronics. IC Role / Device Role / Timing Role: General-purpose power switch interfacing MCU GPIOs to 12 V loads. Use Value: 1 A continuous rating supports typical BCM actuator currents; AEC-Q101 ensures long-term reliability in cabin environments. |
| AF Output Stage | LED Driver for Automotive Lighting |
Use Scenario: Amplifying audio signals in infotainment head unit output stages driving speakers. IC Role / Device Role / Timing Role: Linear-mode NPN amplifier with fT = 150 MHz enabling clean mid-band response. Use Value: Stable hFE across current range ensures consistent gain; low noise profile supports audio fidelity. |
Use Scenario: Constant-current switching for daytime running lights (DRL) and position lamps. IC Role / Device Role / Timing Role: High-side or low-side current switch regulating LED string current. Use Value: 2 A ICM accommodates LED surge during cold start; thermal resistance enables compact heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BCX56-16 (non-Q) | Same electrical specs but not AEC-Q101 qualified; no PPAP or IATF16949 traceability. | Limited to non-automotive industrial or consumer use where qualification is not required. | Select only if automotive compliance is unnecessary and cost is prioritized over supply chain rigor. |
| ZTX653 | Higher VCEO (100 V), lower hFE (min 20), TO-92 package (no thermal pad), RθJA = 200 °C/W. | Suitable for low-power general-purpose switching but lacks thermal performance for sustained 1 A loads. | Choose only for space-constrained non-automotive designs where thermal dissipation is managed externally. |
Compared with BCX56-16 and ZTX653, BCX5616QTA uniquely combines AEC-Q101 qualification, SOT89 thermal efficiency (RθJL = 13 °C/W), and guaranteed 80 V/1 A operation-making it the only option validated for automotive power switching with production-grade traceability.
Availability
BCX5616QTA is available at Aetrix Electronics and suitable for engine control units, body control modules, and automotive LED lighting systems requiring stable component supply, full automotive qualification, and long-term lifecycle support.
Supply support for BCX5616QTA 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The BCX5616QTA belongs to Diodes' AEC-Q101-qualified bipolar transistor product line, engineered specifically for automotive power switching applications demanding robustness, thermal efficiency, and supply-chain transparency.
FAQ
What automotive standards does BCX5616QTA meet?
BCX5616QTA is AEC-Q101 qualified, manufactured in IATF16949-certified facilities, and PPAP-capable. It meets JEDEC JESD22-A114 (HBM ESD = 4 kV) and JESD22-A115 (MM ESD = 400 V), with halogen- and antimony-free "Green" construction compliant with RoHS 3 (2015/863/EU).
Can BCX5616QTA replace BCX56-16 in existing designs?
Yes, electrically identical-same VCEO, IC, VCE(sat), and pinout-but BCX5616QTA adds AEC-Q101 qualification, enhanced traceability, and automotive-grade process controls. No layout or schematic changes are needed, though qualification documentation must be updated for automotive programs.
What is the maximum PCB copper area needed to sustain 1 A continuous current?
At ambient 25°C, 50 mm × 50 mm (2500 mm²) of 1 oz copper achieves RθJA = 60 °C/W, limiting junction rise to ~60°C at 1 W dissipation. For 1 A at VCE(sat) = 0.5 V (0.5 W), even 15 mm × 15 mm copper (RθJA = 125 °C/W) keeps TJ ≤ 112.5°C-within −55°C to +150°C rating.
Is the SOT89 exposed pad internally connected to the collector?
Yes-the metal tab on the SOT89 package is the collector terminal and serves as both electrical connection and primary thermal path. PCB layout must connect this pad directly to a dedicated copper pour tied to the collector net; no isolation or floating connections are permitted.
BCX5616QTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- 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:
- 2 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
BCX5616QTA FAQ
1.How can I place an order for BCX5616QTA through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX5616QTA 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 BCX5616QTA reliable?
The price and inventory of BCX5616QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX5616QTA is usually 5 days.
3.What payment methods are accepted for BCX5616QTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX5616QTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX5616QTA?
BCX5616QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX5616QTA 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 BCX5616QTA?
For technical support, including BCX5616QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX5616QTA requirements.
6.How does Aetrix verify that BCX5616QTA is sourced from the original manufacturer or authorized distributors?
All BCX5616QTA 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 BCX5616QTA meets industry standards.
7.What is the process for return or replacement of BCX5616QTA?
All BCX5616QTA units undergo pre-shipment inspection (PSI). If there is an issue with BCX5616QTA, 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 BCX5616QTA part is unused and in its original packaging.
Return procedure for BCX5616QTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCX5616QTA Tags
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