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Infineon Technologies BCX5516E6433HTMA1
- Part No.:
- BCX5516E6433HTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX5516E6433HTMA1.pdf
- Description:
- TRANS NPN 60V 1A PG-SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:7,477
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Product details
Overview
BCX5516E6433HTMA1 from Infineon Technologies is an NPN silicon bipolar junction transistor designed for audio-frequency driver and output stages in automotive and industrial power amplifiers. It features a 60 V collector-emitter breakdown voltage (VCEO), 1 A continuous collector current (IC), and low 0.5 V collector-emitter saturation voltage (VCE(sat)) at IC = 500 mA / IB = 50 mA, enabling efficient switching and linear amplification in compact SOT89-mounted circuits.
For engineers reviewing the BCX5516E6433HTMA1 datasheet, BCX5516E6433HTMA1 pinout, BCX5516E6433HTMA1 application, or BCX5516E6433HTMA1 equivalent, this device supports high-current AF amplification with thermal robustness up to 150 °C junction temperature, RoHS-compliant packaging, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This transistor operates as a medium-power NPN switch/amplifier with DC current gain (hFE) ranging from 63 to 100 at IC = 150 mA and VCE = 2 V, and up to 250 at IC = 500 mA for BCX55-16 variants. Its fT of 100 MHz supports stable operation in audio-band signal paths and low-speed switching applications.
Thermal design is enabled by a junction-to-soldering-point thermal resistance (RthJS) ≤ 15 K/W and total power dissipation (Ptot) of 2 W at TS ≤ 120 °C. The device is rated for storage from –65 °C to +150 °C and qualified per AEC-Q101 for automotive under-hood use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 60 V - Maximum safe collector-emitter voltage before avalanche breakdown in common-emitter configuration |
| IC | 1 A - Continuous DC collector current rating defining usable output drive capability |
| VCE(sat) | 0.5 V @ IC=500 mA, IB=50 mA - Low saturation voltage minimizes conduction loss in switching applications |
| hFE | 63–100 @ IC=150 mA - Confirmed DC current gain range supporting predictable biasing in linear amplifier designs |
| fT | 100 MHz @ IC=50 mA, VCE=10 V - Transition frequency confirming suitability for audio-band amplification and low-speed switching |
| RthJS | ≤15 K/W - Thermal resistance from junction to solder point, enabling direct PCB copper pour thermal management |
| Tj | 150 °C - Maximum allowable junction temperature, supporting operation in high-ambient environments |
Pinout & Package
The BCX5516E6433HTMA1 is housed in a surface-mount SOT89 package with standardized leadframe geometry optimized for thermal dissipation and automated assembly. Pin 1 is Base (B), Pin 2 is Collector (C), and Pin 3 is Emitter (E), consistent across all BCX54–BCX56 series variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base | Control terminal for injecting base current to regulate collector current flow; requires external bias network |
| 2 (C) | Collector | Main high-current output terminal; connected to load or supply rail depending on circuit topology |
| 3 (E) | Emitter | Reference terminal for current return path; often tied to ground or emitter resistor for stabilization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics requiring extended temperature and reliability compliance |
| Pb-free (RoHS compliant) | Meets EU Directive 2011/65/EU without lead-based solder finishes or internal plating |
| Complementary PNP pairing | Designed for matched operation with BCX51–BCX53 series, enabling push-pull amplifier topologies |
| High IC / low VCE(sat) | Delivers 1 A output with <0.5 V conduction drop, reducing heat generation in space-constrained SOT89 layouts |
Applications
| Automotive Audio Amplifiers | Industrial Motor Drivers |
|---|---|
Use Scenario: Output stage in Class AB car radio amplifiers delivering 5–10 W into 4 Ω loads. IC Role / Device Role / Timing Role: NPN power transistor providing current gain and voltage swing in push-pull pair with complementary PNP. Use Value: 60 V VCEO and 1 A IC support rail voltages up to ±24 V while maintaining linearity and thermal stability. | Use Scenario: Low-side switch in 24 V DC motor control circuits for HVAC actuators and seat adjusters. IC Role / Device Role / Timing Role: Medium-power switching transistor driven by microcontroller GPIO via base resistor network. Use Value: 0.5 V VCE(sat) limits power loss to <250 mW at 500 mA, reducing heatsink requirements in sealed enclosures. |
| Power Supply Regulators | LED Driver Circuits |
Use Scenario: Pass transistor in linear voltage regulators supplying 5 V/1 A to infotainment subsystems. IC Role / Device Role / Timing Role: Series pass element controlled by error amplifier feedback loop to maintain regulated output. Use Value: 150 °C Tj rating allows sustained operation under load transients and ambient temperatures up to 105 °C. | Use Scenario: Constant-current switch for high-brightness LED strings in dashboard backlighting. IC Role / Device Role / Timing Role: Current-regulating transistor operating in linear mode with emitter resistor sensing. Use Value: Tight hFE spread (63–100) enables predictable current setting across production batches without trimming. |
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 |
|---|---|---|---|
| BCX55-16 (Infineon) | Same die, identical electrical specs and SOT89 package; differs only in marking and reel packaging (E6433HTMA1 denotes specific tape-and-reel variant) | No functional difference; both qualified to AEC-Q101 and RoHS | Select based on logistics preference: E6433HTMA1 indicates 1,000-piece 180 mm reel; BCX55-16 may ship in alternate packaging |
| MMBT5551 (ON Semiconductor) | Lower VCEO (160 V), lower IC (0.6 A), SOT23 package - smaller footprint but higher RthJA and no AEC-Q101 qualification | Not suitable for automotive under-hood use; limited to consumer-grade low-power amplification | Use only in non-automotive, space-constrained designs where 60 V rating and 1 A current are not required |
Compared with BCX5516E6433HTMA1, the BCX55-16 offers identical performance and qualification but different packaging logistics, while MMBT5551 trades automotive reliability and current capacity for smaller size and higher voltage headroom in non-automotive contexts.
Availability
BCX5516E6433HTMA1 is available at Aetrix Electronics and suitable for automotive audio systems, industrial motor controllers, and linear power supplies requiring stable component supply with AEC-Q101 validation and RoHS compliance.
Supply support for BCX5516E6433HTMA1 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.
The BCX54–BCX56 series belongs to Infineon's legacy bipolar transistor product line, engineered specifically for high-reliability audio-frequency power amplification and switching in automotive and industrial environments.
FAQ
Is BCX5516E6433HTMA1 pin-compatible with BCX54 or BCX56?
Yes - all BCX54, BCX55, and BCX56 variants share identical SOT89 pinout (B-C-E) and mechanical footprint. However, maximum ratings differ: BCX54 has 45 V VCEO, BCX55 is 60 V, and BCX56 is 80 V. Substitution requires verification of voltage margin in the target circuit.
What is the meaning of "E6433HTMA1" in the part number?
E6433HTMA1 is Infineon's internal reel and packaging code: "E6433" identifies the specific tape-and-reel configuration (1,000 pcs on 180 mm reel), "HT" denotes humidity level, "MA1" indicates manufacturing lot and date code format. Electrical and thermal specs match BCX55-16.
Does BCX5516E6433HTMA1 require a heatsink in typical operation?
Not necessarily - with RthJS ≤ 15 K/W and Ptot = 2 W at TS ≤ 120 °C, adequate copper pour (≥ 100 mm²) on the collector pad serves as sufficient thermal path. Heatsinking is recommended only for continuous >1.5 A operation or ambient >85 °C.
Can BCX5516E6433HTMA1 be used in switching power supplies?
It is not optimized for high-frequency SMPS due to fT = 100 MHz and lack of specified switching times. It functions reliably in low-frequency (<100 kHz) flyback or linear regulator applications but should not replace dedicated power MOSFETs or RF transistors in MHz-range converters.
BCX5516E6433HTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 60 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:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT89
BCX5516E6433HTMA1 FAQ
1.How can I place an order for BCX5516E6433HTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX5516E6433HTMA1 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 BCX5516E6433HTMA1 reliable?
The price and inventory of BCX5516E6433HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX5516E6433HTMA1 is usually 5 days.
3.What payment methods are accepted for BCX5516E6433HTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX5516E6433HTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX5516E6433HTMA1?
BCX5516E6433HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX5516E6433HTMA1 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 BCX5516E6433HTMA1?
For technical support, including BCX5516E6433HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX5516E6433HTMA1 requirements.
6.How does Aetrix verify that BCX5516E6433HTMA1 is sourced from the original manufacturer or authorized distributors?
All BCX5516E6433HTMA1 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 BCX5516E6433HTMA1 meets industry standards.
7.What is the process for return or replacement of BCX5516E6433HTMA1?
All BCX5516E6433HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BCX5516E6433HTMA1, 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 BCX5516E6433HTMA1 part is unused and in its original packaging.
Return procedure for BCX5516E6433HTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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