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Infineon Technologies BCP 54-16 H6779
- Part No.:
- BCP 54-16 H6779
- Manufacturer:
- Infineon Technologies
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP 54-16 H6779.pdf
- Description:
- TRANS NPN 45V 1A PG-SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,487
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Product details
Overview
BCP 54-16 H6779 from Infineon Technologies is an NPN silicon bipolar junction transistor (BJT) designed for audio-frequency driver and output stages in linear amplification circuits. It delivers 1 A continuous collector current, 45 V collector-emitter breakdown voltage (V(BR)CEO), and low 0.5 V saturation voltage at IC = 500 mA / IB = 50 mA - enabling efficient Class-A/AB amplifier output stage operation in automotive audio modules.
For engineers reviewing the BCP 54-16 H6779 datasheet, BCP 54-16 H6779 pinout, BCP 54-16 H6779 application, or BCP 54-16 H6779 equivalent, key selection criteria include its SOT223 package thermal resistance (RthJS ≤ 15 K/W), DC current gain range (hFE = 63–100 at IC = 150 mA), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This transistor operates as a medium-power linear switching and amplification device with fixed emitter-base and collector-base junction structures optimized for stable DC biasing in analog signal paths. Its hFE variation across IC (25–250 at VCE = 2 V) supports predictable gain control in feedback-based AF amplifiers.
The SOT223 package enables direct PCB thermal coupling to copper pour, supporting sustained 2 W dissipation at TS ≤ 120°C. Its complementary PNP counterpart is BCP51-16, facilitating push-pull output stage design without discrete heatsinking in space-constrained automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)CEO | 45 V - maximum safe collector-emitter voltage before avalanche breakdown under open-base conditions |
| IC (continuous) | 1 A - supports audio output stages delivering ≥2 W into 4 Ω loads without forced cooling |
| VCE(sat) | 0.5 V @ IC = 500 mA, IB = 50 mA - minimizes conduction loss and self-heating in linear mode |
| hFE | 63–100 @ IC = 150 mA, VCE = 2 V - ensures stable bias point in emitter-follower driver configurations |
| fT | 100 MHz @ IC = 50 mA, VCE = 10 V - preserves fidelity up to upper-audio band (20 kHz) with margin |
| RthJS | ≤15 K/W - enables direct thermal path from junction to soldering point on 2-oz copper PCB |
Pinout & Package
SOT223 surface-mount package with 4 terminals: Pin 1 = Base, Pin 2 = Collector, Pin 3 = Emitter, Pin 4 = Collector (tab). The exposed collector tab provides low-inductance, high-current path and primary thermal conduction route to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input for current amplification; requires current-limited drive (max IB = 100 mA DC) |
| 2 | Collector | Main power output node; electrically and thermally connected to Pin 4 tab |
| 3 | Emitter | Reference node for bias network; common return for load current |
| 4 | Collector (Tab) | Primary thermal interface and low-impedance current return; must be soldered to ≥1 cm² copper pour |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive temperature cycling (-40°C to +150°C junction), vibration, and humidity stress |
| Low VCE(sat) | 0.5 V at rated IC/IB reduces power loss by >30% vs. standard general-purpose transistors |
| High hFE consistency | 63–100 range at 150 mA enables single-bias resistor design across production lots |
| Pb-free RoHS compliance | Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260°C) |
Applications
| Automotive Audio Amplifier Output Stage | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Final output stage of 10–25 W Class-AB amplifier in vehicle infotainment head unit. IC Role / Device Role / Timing Role: Linear current amplifier driving 4 Ω speaker load with minimal crossover distortion. Use Value: 0.5 V VCE(sat) limits quiescent power loss to <1.25 W at 500 mA bias, reducing thermal derating needs. | Use Scenario: Current-source driver for 4–20 mA loop transmitter in factory automation sensor module. IC Role / Device Role / Timing Role: Precision active load regulating loop current independent of supply rail fluctuations. Use Value: hFE ≥63 at 150 mA ensures stable 20 mA output with ±2% tolerance over temperature. |
| DC Motor Speed Control Driver | Power Supply Pass Transistor |
Use Scenario: Low-frequency PWM-driven H-bridge half-bridge leg in 12 V brushed DC motor controller. IC Role / Device Role / Timing Role: Switching element operating in saturation/cutoff with <1 µs turn-off delay. Use Value: fT = 100 MHz provides >10× margin over 20 kHz PWM carrier, ensuring clean edge transitions. | Use Scenario: Series pass element in adjustable 3–12 V, 1 A linear regulator for FPGA core voltage. IC Role / Device Role / Timing Role: Voltage-controlled current source maintaining constant output despite input ripple. Use Value: RthJS ≤15 K/W allows full 1 A load at ambient 70°C with only 2 cm² copper thermal pad. |
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 |
|---|---|---|---|
| BCP54-10 H6779 | Same die, lower hFE bin (25–63 @ 150 mA); identical V(BR)CEO, VCE(sat), and package | Less suitable for low-drive applications requiring high current gain stability | Select when bias network uses feedback or when cost sensitivity outweighs gain margin |
| BCP55-16 H6779 | Higher V(BR)CEO (60 V) and V(BR)CBO (60 V); same hFE range and thermal specs | Required for 24 V industrial systems where 45 V rating is insufficient | Choose for 24 V bus applications needing extended voltage headroom without changing layout |
Compared with BCP54-16 H6779, the -10 variant trades gain for cost in stable-bias designs, while the BCP55-16 offers higher voltage capability at identical thermal and footprint compatibility - enabling scalable platform design across 12 V and 24 V systems.
Availability
BCP 54-16 H6779 is available at Aetrix Electronics and suitable for automotive audio amplifiers, industrial 4–20 mA transmitters, DC motor drivers, and linear regulator pass elements requiring stable component supply and AEC-Q101 compliance.
Supply support for BCP 54-16 H6779 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 BCP54 series belongs to Infineon's automotive-qualified bipolar transistor product line, engineered specifically for robust linear amplification and switching in harsh-environment electronic control units.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The absolute maximum junction temperature (Tj) is 150°C, validated per AEC-Q101 stress testing. Operation above this limit risks permanent degradation of hFE and increased leakage. Derating is required above TS = 120°C, where total power dissipation must be reduced linearly to zero at 150°C junction temperature.
Can BCP 54-16 H6779 be used in parallel configurations?
No - the BCP54-16 lacks built-in emitter ballasting resistors and exhibits non-uniform hFE spread (63–100), making current sharing unstable in parallel operation. For higher current, use a single higher-rated device like BCP56-16 or implement external emitter resistors with matched hFE bins.
Is the SOT223 package lead (Pin 4) internally connected to Pin 2?
Yes - Pin 4 (exposed tab) is electrically and thermally connected to Pin 2 (collector) internally. This dual-collector configuration lowers thermal resistance and improves current handling but requires isolation of the tab from other nets unless intentionally tied to collector potential.
Does this transistor support pulsed operation beyond its DC ratings?
Yes - peak collector current reaches 1.5 A for pulses ≤10 ms (duty cycle <2%). Pulse capability is validated via transient thermal modeling and shown in the permissible pulse load curves (EHP00267–EHP00271), confirming safe operation up to 2.5× DC current with appropriate pulse width control.
BCP 54-16 H6779 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 45 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-SOT223-4
BCP 54-16 H6779 FAQ
1.How can I place an order for BCP 54-16 H6779 through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP 54-16 H6779 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 BCP 54-16 H6779 reliable?
The price and inventory of BCP 54-16 H6779 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP 54-16 H6779 is usually 5 days.
3.What payment methods are accepted for BCP 54-16 H6779?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP 54-16 H6779 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP 54-16 H6779?
BCP 54-16 H6779 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP 54-16 H6779 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 BCP 54-16 H6779?
For technical support, including BCP 54-16 H6779 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP 54-16 H6779 requirements.
6.How does Aetrix verify that BCP 54-16 H6779 is sourced from the original manufacturer or authorized distributors?
All BCP 54-16 H6779 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 BCP 54-16 H6779 meets industry standards.
7.What is the process for return or replacement of BCP 54-16 H6779?
All BCP 54-16 H6779 units undergo pre-shipment inspection (PSI). If there is an issue with BCP 54-16 H6779, 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 BCP 54-16 H6779 part is unused and in its original packaging.
Return procedure for BCP 54-16 H6779:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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