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Nexperia USA Inc. BC847BQAZ
- Part No.:
- BC847BQAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
BC847BQAZ.pdf
- Description:
- TRANS NPN 45V 0.1A DFN1010D-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,907
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Product details
Overview
BC847BQAZ from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a leadless DFN1010D-3 (SOT1215) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 200–450 at IC = 2 mA, VCE = 5 V. It serves as a compact, high-reliability switching and amplification device in space-constrained automotive and mobile PCBs.
For engineers reviewing the BC847BQAZ datasheet, BC847BQAZ pinout, BC847BQAZ application, or BC847BQAZ equivalent, this page delivers verified package dimensions, thermal derating curves, saturation voltage behavior under defined drive conditions, and validated automotive-grade alternatives - all aligned to Nexperia's official Rev. 1 (26 August 2015) product data sheet.
Technical Context
This transistor operates as a discrete NPN bipolar junction device with base-controlled current amplification. Its design supports linear amplification (VBE = 580–700 mV at IC = 2 mA) and saturated switching (VCE(sat) = 90–200 mV at IC = 10 mA, IB = 0.5 mA), with transition frequency fT ≥ 100 MHz at VCE = 5 V, IC = 10 mA.
Thermal performance is specified for two PCB configurations: Rth(j-a) = 446 K/W on single-layer FR4 and 284 K/W on 4-layer FR4. The device is qualified per AEC-Q101 for automotive ambient temperatures from −55 °C to +150 °C and junction temperature up to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown under open-base condition; defines safe operating voltage headroom in 12 V/24 V automotive supply rails. |
| IC | 100 mA continuous - Rated collector current for sustained operation; supports LED drivers, sensor biasing, and logic-level signal switching. |
| hFE | 200–450 at IC = 2 mA - Confirmed DC current gain range enabling predictable base drive sizing without margin overdesign. |
| VCE(sat) | 90–200 mV at IC = 10 mA, IB = 0.5 mA - Low saturation voltage ensures <1 mW power loss in switching mode, critical for battery-powered efficiency. |
| Package | DFN1010D-3 (SOT1215) - 1.1 × 1.0 × 0.37 mm ultra-thin leadless package with solderable side pads; enables AOI-compatible assembly and 0.37 mm profile for stacked PCBs. |
| AEC-Q101 | Qualified - Validated for automotive use including temperature cycling, humidity testing, and mechanical shock per AEC standard; no additional qualification required for Tier-1 designs. |
Pinout & Package
DFN1010D-3 (SOT1215) is a 3-terminal, leadless surface-mount plastic package with visible and solderable side pads, body dimensions 1.1 mm × 1.0 mm × 0.37 mm, and thermal pad omitted (no exposed thermal slug).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for forward-biased B-E junction; requires 0.5–1 mA drive for full saturation at 100 mA collector load. |
| 2 | Emiter | Current return path; connected to ground or low-side reference; layout must minimize inductance for fast switching. |
| 3 | Collector | High-side output node; electrically tied to pin 4 (dual-collector configuration); supports common-emitter switching topology. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE selections | BC847AQA (110–220), BC847BQA (200–450), BC847CQA (420–800) - Enables precise gain matching across production batches without circuit redesign. |
| AEC-Q101 qualification | Validated for automotive underhood environments including 1000-cycle temperature cycling (−40 °C to +125 °C) and 1000 h HAST - eliminates need for customer requalification. |
| 0.37 mm package height | Enables stacking with thin-profile components (e.g., MLCCs < 0.5 mm) in multi-layer mobile modules where Z-axis clearance is constrained to ≤0.4 mm. |
| AOI-compatible side pads | Solderable lateral terminations allow automated optical inspection of solder joint integrity - reduces post-reflow defect escapes in high-volume SMT lines. |
Applications
| Automotive Door Module | Smartphone Proximity Sensor Bias |
|---|---|
Use Scenario: Driving small solenoids and status LEDs in door lock actuators and window control units. IC Role / Device Role / Timing Role: NPN switch controlling 12 V loads with <10 µs turn-on/turn-off response. Use Value: Low VCE(sat) minimizes heat generation in sealed enclosures; AEC-Q101 compliance avoids separate reliability testing. |
Use Scenario: Providing stable bias current to infrared phototransistor arrays in bezel-integrated proximity detection. IC Role / Device Role / Timing Role: Constant-current source with hFE-stabilized output for ambient-light-immune sensing. Use Value: Tight hFE binning (200–450) ensures consistent sensor current across production, reducing factory calibration steps. |
| USB-C Port Protection Circuit | Industrial IoT Sensor Node |
Use Scenario: Enabling/disabling VBUS power paths during CC-line negotiation and fault isolation. IC Role / Device Role / Timing Role: Low-side switch interrupting 5 V/1.5 A USB power delivery with <100 ns propagation delay. Use Value: 45 V VCEO provides 9× safety margin over 5 V rail; DFN1010D-3 footprint saves >0.3 mm² vs. SOT23 in dense port layouts. |
Use Scenario: Amplifying microvolt-level thermocouple outputs in battery-powered edge nodes. IC Role / Device Role / Timing Role: Low-noise preamplifier stage (NF = 2–10 dB at 1 kHz) with matched hFE for differential pair stability. Use Value: 11 pF emitter capacitance and 1.5 pF collector capacitance preserve signal bandwidth up to 100 kHz without external compensation. |
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,115 (Nexperia) | SOT323 package (2.1 × 1.25 × 0.95 mm); hFE 200–450; same electrical specs but 2.5× taller and 2× larger footprint. | Not suitable for ultra-thin mobile modules; acceptable for industrial PCBs with >1 mm Z clearance. | Select when AOI compatibility is unnecessary and legacy SOT323 tooling is in place. |
| MMBT3904LT1G (onsemi) | SOT-23 package; hFE 100–300; VCEO = 40 V; not AEC-Q101 qualified; Rth(j-a) = 357 K/W on 2-layer FR4. | Lacks automotive qualification and thermal performance for underhood use; lower VCEO limits 24 V system margin. | Acceptable for consumer-grade portable electronics where AEC-Q101 is not mandated and 40 V rating suffices. |
Compared with BC847BQAZ, BC847BW offers identical gain and voltage ratings but sacrifices 0.37 mm height and AOI capability for broader assembly compatibility, while MMBT3904LT1G trades automotive qualification and thermal efficiency for wider distributor availability and lower cost in non-automotive designs.
Availability
BC847BQAZ is available at Aetrix Electronics and suitable for automotive door modules, smartphone proximity sensors, USB-C port protection circuits, and industrial IoT sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BC847BQAZ 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 mobile markets.
BC847BQAZ belongs to the BC847XQA series - a family of AEC-Q101-qualified, ultra-small-footprint NPN transistors engineered specifically for space- and reliability-critical automotive infotainment, body electronics, and ADAS subsystems.
FAQ
Is BC847BQAZ pin-compatible with BC847B, BC847BW, or MMBT3904?
No. BC847BQAZ uses the DFN1010D-3 (SOT1215) 3-pin leadless package with side-solderable terminals, while BC847B and BC847BW use SOT23 and SOT323 packages respectively, and MMBT3904LT1G uses SOT-23. Pin numbering and physical layout differ entirely; PCB redesign is required for substitution.
What is the maximum allowable power dissipation at 85 °C ambient temperature?
At Tamb = 85 °C, Ptot derates linearly from 440 mW (at 25 °C on 4-layer FR4) to zero at 150 °C junction. Using Rth(j-a) = 284 K/W, maximum dissipation is 440 mW − ((85 − 25) × 440 / (150 − 25)) = 267 mW - confirmed by Figure 2 curve (2) in the official datasheet.
Does BC847BQAZ support pulsed operation beyond its 100 mA continuous rating?
Yes. Per Table 6, peak collector current ICM is 200 mA for single pulses ≤1 ms. This enables short-duration surge handling in relay drivers or ESD clamp circuits, provided duty cycle remains ≤1% and average power stays within Ptot limits.
How is the marking code "00 10 11" decoded on BC847BQAZ top surface?
The binary code "00 10 11" corresponds to BC847BQA per Table 5. It is read left-to-right along the marked edge, with pin 1 indicated by a mark-free area adjacent to the first digit group. No date code or vendor ID is included in this 6-bit marking scheme.
BC847BQAZ 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:
- 280 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1010D-3
BC847BQAZ FAQ
1.How can I place an order for BC847BQAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BQAZ 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 BC847BQAZ reliable?
The price and inventory of BC847BQAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BQAZ is usually 5 days.
3.What payment methods are accepted for BC847BQAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BQAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BQAZ?
BC847BQAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BQAZ 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 BC847BQAZ?
For technical support, including BC847BQAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BQAZ requirements.
6.How does Aetrix verify that BC847BQAZ is sourced from the original manufacturer or authorized distributors?
All BC847BQAZ 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 BC847BQAZ meets industry standards.
7.What is the process for return or replacement of BC847BQAZ?
All BC847BQAZ units undergo pre-shipment inspection (PSI). If there is an issue with BC847BQAZ, 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 BC847BQAZ part is unused and in its original packaging.
Return procedure for BC847BQAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BQAZ Tags
-
MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
onsemi
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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
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
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MMBT2222ALT1G
onsemi
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