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Nexperia USA Inc. BC847BQC-QZ
- Part No.:
- BC847BQC-QZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BC847BQC-QZ.pdf
- Description:
- TRANS NPN 45V 0.1A DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,953
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Product details
Overview
BC847BQC-QZ from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a DFN1412D-3 (SOT8009) leadless package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 200–450 at VCE = 5 V and IC = 2 mA. It delivers low 0.48 mm profile, side-wettable flanks for AOI-compatible solder joint inspection, and is deployed in automotive body control modules for discrete load switching.
For engineers reviewing the BC847BQC-QZ datasheet, BC847BQC-QZ pinout, BC847BQC-QZ application, or BC847BQC-QZ equivalent, this page provides verified package dimensions, thermal derating curves, saturation voltage behavior across temperature, automotive qualification status, and validated alternatives with explicit hFE and VCE(sat) trade-offs.
Technical Context
This device operates as a silicon planar epitaxial NPN transistor optimized for linear amplification and saturated switching in space-constrained PCB layouts. Its DFN1412D-3 package uses copper-leadframe construction with side-wettable flanks to enable automated optical inspection of solder fillets - a requirement for automotive Tier-1 production lines.
The BC847BQC-QZ exhibits stable hFE over −55 °C to +150 °C ambient, with VCE(sat) ≤ 400 mV at IC = 100 mA / IB = 5 mA (pulsed), and thermal resistance Rth(j-a) of 278 K/W on 70 µm FR4 copper - enabling reliable operation in engine bay proximity without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown under open-base condition; supports 12 V/24 V automotive supply rails with margin. |
| IC | 100 mA continuous - Sustained collector current rating; suitable for driving LEDs, small relays, or logic-level signal buffering. |
| hFE | 200–450 at VCE = 5 V, IC = 2 mA - Tight DC current gain binning enables predictable base drive sizing in analog amplifier or switch designs. |
| VCE(sat) | ≤ 400 mV at IC = 100 mA, IB = 5 mA (pulsed) - Low saturation voltage minimizes power loss and self-heating during switching duty cycles. |
| Package | DFN1412D-3 (SOT8009) - 1.4 mm × 1.2 mm × 0.48 mm footprint with side-wettable flanks; enables AOI and reduces board area by >50% vs. SOT23. |
| AEC-Q101 | Qualified - Certified for automotive applications per Stress Test Qualification for Discrete Semiconductors; valid for under-hood use. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin plastic package with side-wettable flanks, 0.8 mm pitch, and 1.4 mm × 1.2 mm body size. It features exposed copper thermal pad on underside for enhanced heat dissipation and AOI-compatible solder joint geometry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal for forward-biased junction; requires 0.76 V typical VBE at IC = 10 mA to achieve saturation. |
| 2 | Emitter (E) | Current sink node; internally connected to thermal pad; must be soldered to PCB copper pour for thermal performance. |
| 3 | Collector (C) | High-side output node; rated for 45 V blocking; connects to load return path in low-side switch configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joints without X-ray; required for automotive PPAP compliance. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - eliminates requalification effort for Tier-1 designs. |
| 0.48 mm height | Reduces system Z-height in compact modules such as door ECUs or sensor nodes where mechanical clearance is <1.0 mm. |
| 278 K/W Rth(j-a) | Thermal resistance on 70 µm FR4 allows 360 mW power dissipation at Tamb = 25 °C - sufficient for intermittent 100 mA loads without heatsinking. |
Applications
| Automotive Body Control Unit | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Driving resistive heater elements and LED status indicators in door module PCBs. IC Role / Device Role / Timing Role: Discrete NPN switch controlling 12 V loads with PWM dimming capability up to 1 kHz. Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +105 °C operating range; side-wettable flanks support zero-defect AOI in high-volume SMT lines. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor voltage dividers) into MCU ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier providing low-output-impedance drive while isolating sensitive analog circuitry from digital noise. Use Value: Tight hFE bin (200–450) ensures consistent gain across production lots; low VCE(sat) preserves signal headroom in 3.3 V systems. |
| Portable Medical Device | Smart Home Actuator Driver |
|
Use Scenario: Enabling/disabling piezoelectric buzzer drivers and low-power display backlights in battery-operated diagnostic tools. IC Role / Device Role / Timing Role: General-purpose switch activated by microcontroller GPIO with minimal external components. Use Value: Ultra-small 1.4 mm × 1.2 mm footprint conserves PCB area in handheld enclosures; 0.48 mm height avoids interference with internal gaskets or displays. |
Use Scenario: Controlling 5 V solenoid valves and motorized damper actuators in HVAC control panels. IC Role / Device Role / Timing Role: Low-side switch interfacing MCU logic to inductive loads with integrated flyback protection. Use Value: 200 mA peak collector current rating accommodates solenoid inrush; qualified thermal performance prevents thermal shutdown during repeated actuation cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BW,115 (Nexperia) | SOT323 package (2.1 mm × 1.25 mm); hFE 200–450; no AEC-Q101 qualification; Rth(j-a) = 348 K/W. | Larger footprint and higher thermal resistance; lacks automotive qualification; suited for consumer-grade cost-sensitive designs. | Select when AOI or under-hood operation is not required and board space permits larger package. |
| MMBT3904LT1G (onsemi) | SOT23 package; hFE 100–300; AEC-Q101 qualified; VCEO = 40 V; VCE(sat) = 300 mV @ IC/IB = 10 mA/0.5 mA. | Lower VCEO margin and wider hFE spread; same automotive qualification but less precise gain control. | Select when lower saturation voltage at light loads is prioritized over tight hFE binning and space constraints. |
Compared with BC847BQC-QZ, BC847BW,115 trades AOI capability and thermal performance for lower unit cost in non-automotive applications, while MMBT3904LT1G offers broader automotive acceptance but looser hFE tolerance and reduced voltage headroom - making BC847BQC-QZ optimal for space-limited, gain-critical automotive switches.
Availability
BC847BQC-QZ is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor interfaces, portable medical devices, and smart home actuator drivers requiring stable component supply, AEC-Q101 traceability, and side-wettable-flank manufacturability.
Supply support for BC847BQC-QZ 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BC847xQC-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered specifically for space-constrained automotive electronics where AOI compatibility, thermal robustness, and tight parametric binning are mandatory.
FAQ
What is the maximum allowable junction temperature for BC847BQC-QZ?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in IEC 60134 limiting values. Operation above this threshold risks permanent degradation of hFE and increased leakage. Derating begins at Tamb > 25 °C per Figure 1, with Ptot dropping to 0 mW at ~125 °C on standard FR4.
Does BC847BQC-QZ require a thermal pad connection to PCB ground?
No - the exposed thermal pad on the DFN1412D-3 package is electrically isolated and serves only for heat conduction. It must be soldered to a dedicated copper pour (not necessarily ground) to achieve the specified Rth(j-a) of 278 K/W; omitting this connection degrades thermal performance by >40%.
How does the side-wettable flank design impact reflow soldering?
The side-wettable flanks extend the solderable surface vertically along the package edge, allowing AOI systems to inspect solder fillet height and wetting angle. Reflow profiles must follow Nexperia's recommended ramp rate (≤3 °C/s), peak temperature (260 °C max), and time above liquidus (60–150 s) per Figure 17 to avoid voiding or insufficient wetting.
Can BC847BQC-QZ replace BC847B in existing SOT23 designs?
No - BC847BQC-QZ uses DFN1412D-3 (SOT8009), which is not pin-to-pin or footprint compatible with SOT23. The pad layout, pitch (0.8 mm vs. 1.9 mm), and thermal pad requirement differ fundamentally. Migration requires PCB redesign and validation of thermal and AOI performance.
BC847BQC-QZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 45 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 5V
- Power - Max:
- 360 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
BC847BQC-QZ FAQ
1.How can I place an order for BC847BQC-QZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BQC-QZ 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 BC847BQC-QZ reliable?
The price and inventory of BC847BQC-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BQC-QZ is usually 5 days.
3.What payment methods are accepted for BC847BQC-QZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BQC-QZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BQC-QZ?
BC847BQC-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BQC-QZ 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 BC847BQC-QZ?
For technical support, including BC847BQC-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BQC-QZ requirements.
6.How does Aetrix verify that BC847BQC-QZ is sourced from the original manufacturer or authorized distributors?
All BC847BQC-QZ 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 BC847BQC-QZ meets industry standards.
7.What is the process for return or replacement of BC847BQC-QZ?
All BC847BQC-QZ units undergo pre-shipment inspection (PSI). If there is an issue with BC847BQC-QZ, 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 BC847BQC-QZ part is unused and in its original packaging.
Return procedure for BC847BQC-QZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BQC-QZ Tags
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BC847B,215
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