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Nexperia USA Inc. BC847BQCZ
- Part No.:
- BC847BQCZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BC847BQCZ.pdf
- Description:
- TRANS 45V 0.1A DFN1412D-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,716
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Product details
Overview
BC847BQCZ from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a leadless DFN1412D-3 (SOT8009) package, delivering 45 V VCEO, 100 mA IC, and hFE of 200–450 at VCE = 5 V / IC = 2 mA. It serves as a compact switching or amplification element in space-constrained automotive and industrial PCBs where side-wettable flanks enable AOI-compatible solder joint inspection.
For engineers reviewing the BC847BQCZ datasheet, BC847BQCZ pinout, BC847BQCZ application, or BC847BQCZ equivalent, this page delivers verified package dimensions, thermal derating curves, saturation voltage behavior across temperature, base-emitter voltage tracking, and validated automotive-grade reliability data - all critical for high-volume SMT deployment in safety-aware designs.
Technical Context
This transistor operates as a discrete current-controlled switch or linear amplifier with fixed polarity (NPN), requiring external base biasing to control collector current flow between emitter and collector terminals. Its DFN1412D-3 package integrates side-wettable flanks for automated optical inspection of solder joints and supports reflow profiles compliant with JEDEC J-STD-020.
Thermal performance is defined by two Rth(j-a) values: 348 K/W on 35 µm FR4 copper and 278 K/W on 70 µm FR4 copper, enabling accurate power dissipation modeling up to 450 mW at Tamb ≤ 25 °C. Junction temperature is rated to 150 °C, with storage range spanning −65 °C to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit for switching applications. |
| IC | 100 mA - Continuous DC collector current rating; sets maximum steady-state load drive capability. |
| hFE | 200–450 - DC current gain at VCE = 5 V, IC = 2 mA; determines required base drive for target collector current. |
| VCE(sat) | ≤400 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes conduction loss in switching mode. |
| Ptot | 450 mW on 70 µm FR4 PCB - Total power dissipation limit at 25 °C ambient; derates linearly above 25 °C per Fig. 1. |
| Tj(max) | 150 °C - Maximum junction temperature; constrains thermal design margin in enclosed or high-ambient environments. |
| AEC-Q101 | Qualified - Meets stress-test requirements for discrete semiconductors in automotive applications, including temperature cycling and HTRB. |
Pinout & Package
DFN1412D-3 (SOT8009) is a 3-terminal, leadless, ultra-thin surface-mount package measuring 1.4 mm × 1.2 mm × 0.48 mm with 0.8 mm pitch and side-wettable flanks for AOI compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires series resistor to limit IB and ensure hFE-based IC scaling. |
| 2 | Emitter (E) | Reference terminal for bias network; connected to ground or low-side return path in common-emitter configuration. |
| 3 | Collector (C) | Output current terminal; sinks load current when B-E junction is forward-biased and VCE < VCEO. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress-test standard, supporting deployment in engine control, body electronics, and ADAS subsystems. |
| Side-wettable flanks (SWF) | Enables automated optical inspection of solder fillets without X-ray, reducing post-reflow defect escape in high-reliability manufacturing. |
| 0.5 mm package height | Minimizes board profile in ultra-thin modules such as smart sensors, wearables, and compact power management units. |
| 1.4 mm × 1.2 mm footprint | Reduces PCB area by >50% vs. legacy SOT23 packages, easing layout in dense routing environments like automotive ECUs. |
| Low VCE(sat) | 400 mV max at full-rated IC ensures <100 mW conduction loss, improving efficiency in battery-powered or thermally constrained systems. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving LED indicators and small relays in door modules and lighting controllers. IC Role / Device Role / Timing Role: Discrete NPN switch controlling 12 V loads with microcontroller GPIO-level base drive. Use Value: AEC-Q101 qualification ensures long-term reliability under automotive thermal cycling; SWF enables 100% AOI coverage on production lines. |
Use Scenario: Amplifying low-level analog signals from RTDs or bridge sensors before ADC sampling. IC Role / Device Role / Timing Role: Linear-mode NPN amplifier configured in common-emitter topology with stable hFE across −40 °C to +125 °C. Use Value: Tight hFE spread (200–450) and low VBE drift (−2 mV/K) support predictable gain calibration in precision analog front-ends. |
| Consumer Wearable Power Management | Smart Home IoT Node Switching |
Use Scenario: Enabling/disabling peripheral rails (e.g., BLE radio, display backlight) in coin-cell–powered devices. IC Role / Device Role / Timing Role: Low-quiescent-current switch activated by MCU output, leveraging minimal VCE(sat) to preserve battery life. Use Value: 0.48 mm height and 1.4 mm × 1.2 mm footprint allow integration into sub-5 mm thick wearable enclosures without compromising thermal headroom. |
Use Scenario: Controlling AC mains-connected relays or triacs via optocoupler-isolated microcontroller outputs. IC Role / Device Role / Timing Role: Interface transistor providing current gain to drive optocoupler LEDs or relay coils from 3.3 V logic. Use Value: 45 V VCEO safely isolates logic-side transients; 200 mA ICM peak rating handles relay coil turn-on surges without secondary clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BW | SOT323 package (2.1 mm × 1.25 mm); no side-wettable flanks; same electrical specs. | Lacks AOI support; unsuitable for automotive high-reliability SMT lines requiring solder-joint verification. | Select when cost or legacy footprint compatibility outweighs AOI requirement and thermal performance is less critical. |
| MMBT3904LT1G | SOT23-3 package; VCEO = 40 V; hFE = 100–300; not AEC-Q101 qualified. | Lower voltage rating and unqualified status restrict use to non-automotive consumer/industrial applications. | Choose only for cost-sensitive, non-automotive designs where 45 V margin and automotive qualification are unnecessary. |
Compared with BC847BW and MMBT3904LT1G, BC847BQCZ uniquely combines AEC-Q101 qualification, side-wettable flanks for AOI, and a 45 V/100 mA rating in a 1.4 mm × 1.2 mm footprint - making it the only option suitable for space-constrained, high-reliability automotive signal switching.
Availability
BC847BQCZ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, wearable power sequencing, and smart home IoT node switching requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for BC847BQCZ 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 and logic devices for automotive, industrial, and consumer markets.
The BC847xQC series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor portfolio, engineered specifically for space-constrained, high-volume automotive and industrial applications demanding AOI-compatible packaging and robust thermal performance.
FAQ
Is BC847BQCZ pin-compatible with BC847B in SOT23?
No. BC847BQCZ uses the DFN1412D-3 (SOT8009) leadless package with bottom-side terminals, while SOT23 has gull-wing leads and different pin spacing. Layout redesign and stencil adjustment are required for migration; no mechanical or solder paste compatibility exists.
What is the maximum allowable PCB copper thickness for achieving the 450 mW Ptot rating?
The 450 mW total power dissipation rating applies specifically to FR4 PCBs with single-sided 70 µm copper, tin-plated, and using the standard footprint per Figure 17. Using thinner copper (e.g., 35 µm) reduces Ptot to 360 mW at 25 °C ambient due to higher thermal resistance.
Does BC847BQCZ support reflow soldering per JEDEC J-STD-020?
Yes. The DFN1412D-3 package is qualified for standard lead-free reflow profiles per JEDEC J-STD-020, with peak temperature up to 260 °C. Recommended stencil thickness is 0.1 mm, and solder land dimensions are specified in Figure 17 for optimal wetting and void control.
How does hFE variation affect base resistor selection in switching applications?
With hFE ranging from 200 to 450, base resistors must be sized for worst-case gain (200) to guarantee saturation at full IC. For example, driving 100 mA load requires ≥500 µA IB; using 200× gain margin yields 500 µA × 1.5 = 750 µA minimum, dictating RB ≤ (3.3 V − 0.7 V)/750 µA ≈ 3.5 kΩ.
BC847BQCZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- -
- 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-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1412D-3
BC847BQCZ FAQ
1.How can I place an order for BC847BQCZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BQCZ 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 BC847BQCZ reliable?
The price and inventory of BC847BQCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BQCZ is usually 5 days.
3.What payment methods are accepted for BC847BQCZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BQCZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BQCZ?
BC847BQCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BQCZ 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 BC847BQCZ?
For technical support, including BC847BQCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BQCZ requirements.
6.How does Aetrix verify that BC847BQCZ is sourced from the original manufacturer or authorized distributors?
All BC847BQCZ 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 BC847BQCZ meets industry standards.
7.What is the process for return or replacement of BC847BQCZ?
All BC847BQCZ units undergo pre-shipment inspection (PSI). If there is an issue with BC847BQCZ, 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 BC847BQCZ part is unused and in its original packaging.
Return procedure for BC847BQCZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BQCZ Tags
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MMBT3906LT1G
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
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MMBT3906-7-F
Diodes Incorporated
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
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BC846BLT1G
onsemi
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BC847B,215
Nexperia USA Inc.
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SMMBT3904LT1G
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MMBT2222A-TP
Micro Commercial Co
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MMBTA06LT1G
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MMBT2222ALT1G
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