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Nexperia USA Inc. BC847W-QF
- Part No.:
- BC847W-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847W-QF.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:4,298
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Product details
Overview
BC847W-QF from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT323 (SC-70) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) spanning 110–800 at VCE = 5 V, IC = 2 mA. It serves as a compact, automotive-grade switching and amplification device in space-constrained PCBs for signal-level control and load interface circuits.
For engineers reviewing the BC847W-QF datasheet, BC847W-QF pinout, BC847W-QF application, or BC847W-QF equivalent, this page delivers verified electrical parameters, validated SOT323 terminal mapping, automotive qualification status, thermal resistance (625 K/W), and direct alternatives with documented gain and saturation voltage differences.
Technical Context
This transistor operates as a low-power, medium-voltage NPN switch or small-signal amplifier with base-emitter turn-on voltage of 580–700 mV at VCE = 5 V, IC = 2 mA, and collector-emitter saturation voltage ≤400 mV at IC = 100 mA, IB = 5 mA. Its transition frequency fT reaches 100 MHz under standard bias conditions.
Thermal performance is defined for FR4 PCB mounting: junction-to-ambient thermal resistance is 625 K/W, and maximum junction temperature is 150 °C. Absolute maximum ratings include VCBO = 50 V, VEBO = 6 V, and Ptot = 200 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage with base open; defines high-side switch headroom in 24 V automotive systems. |
| IC | 100 mA - Continuous DC collector current rating; supports LED drivers, relay coils, and logic-level signal buffering. |
| hFE | 110–800 - Wide DC current gain range at VCE = 5 V, IC = 2 mA; enables flexible bias design across production lots. |
| VCE(sat) | ≤400 mV @ IC = 100 mA, IB = 5 mA - Low saturation voltage ensures <0.5% power loss in switching applications at rated current. |
| Rth(j-a) | 625 K/W - Thermal resistance on standard FR4 PCB; informs derating above 25 °C ambient for sustained 100 mA operation. |
| fT | 100 MHz - Transition frequency at VCE = 5 V, IC = 10 mA; supports audio-frequency amplification and fast digital switching. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive environments; supports under-hood and infotainment use. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: ultra-compact 3-pin footprint (2.2 mm × 1.35 mm × 0.95 mm), optimized for high-density routing and reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires ~0.6–0.7 V forward bias to enable conduction; base resistor sizing must account for hFE spread. |
| 2 | Emitter (E) | Reference terminal for current flow; connected to ground or low-side return path; forms common-emitter configuration with collector output. |
| 3 | Collector (C) | Output terminal carrying switched load current; placed on PCB side with adequate copper pour for thermal dissipation up to 200 mW. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive temperature range (−65 °C to +150 °C) and reliability testing; eliminates need for additional qualification effort in Tier-1 designs. |
| Three hFE selections | BC847W-Q (110–800), BC847AW-Q (110–220), BC847BW-Q (200–450), BC847CW-Q (420–800); enables precise gain binning without redesign. |
| SOT323 footprint | 0.65 mm pitch, 1.35 mm body width; compatible with standard SC-70 reflow profiles and automated optical inspection (AOI) systems. |
| Low VBE(sat) | ≤900 mV @ IC = 100 mA, IB = 5 mA; reduces base drive power in high-duty-cycle switching, improving MCU GPIO efficiency. |
Applications
| Automotive Interior Lighting Control | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Driving 24 V LED strings in door modules and dashboard backlighting using microcontroller GPIO. IC Role / Device Role / Timing Role: Low-side NPN switch interfacing MCU output to LED anode supply; handles 80–100 mA pulsed current. Use Value: VCE(sat) ≤400 mV minimizes heat generation in sealed enclosures; AEC-Q101 ensures 15-year operational life at 105 °C ambient. |
Use Scenario: Amplifying millivolt-level thermistor or bridge sensor outputs before ADC sampling in PLC analog input modules. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with fixed bias network; provides 20–50× voltage gain at DC–10 kHz. Use Value: hFE stability over −40 °C to +85 °C ensures consistent gain calibration; low noise figure (2–10 dB) preserves SNR. |
| Consumer Appliance Motor Driver Stage | Medical Diagnostic Equipment Power Sequencing |
|
Use Scenario: Enabling 12 V brushed DC fan or pump via microcontroller in smart HVAC controls and kitchen appliances. IC Role / Device Role / Timing Role: Medium-current switch controlling motor enable line; driven by 3.3 V logic with series base resistor. Use Value: 100 mA IC rating supports peak startup currents; 45 V VCEO accommodates inductive kickback suppression without snubbers. |
Use Scenario: Controlling power-up sequencing of isolated DC/DC converters in portable ultrasound and patient monitor subsystems. IC Role / Device Role / Timing Role: Precision timing element in RC-delayed enable circuit; provides predictable turn-on delay via base capacitance. Use Value: Tight VBE tolerance (580–700 mV) ensures ±5% delay accuracy across temperature; SOT323 allows placement near critical ICs. |
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 |
|---|---|---|---|
| BC847C-Q | hFE = 420–800 (narrower high-gain band); identical VCEO, IC, package, and AEC-Q101 status. | Better suited for precision biasing where gain consistency >200 is required; less tolerant of low-base-drive scenarios. | Select when circuit relies on stable high hFE for minimal base current; avoid if wide gain variation is needed for robustness. |
| MMBT3904-7-F | hFE = 100–300; VCEO = 40 V; non-automotive qualified; same SOT-23 package (not pin-compatible with SOT323). | Limited to commercial-temperature industrial or consumer use; lower voltage margin restricts 24 V system headroom. | Use only in cost-sensitive, non-automotive designs where 40 V rating suffices and SOT-23 layout is already established. |
Compared with BC847C-Q, BC847W-Q offers broader hFE coverage for uncalibrated bias networks, while MMBT3904-7-F lacks automotive qualification and has lower VCEO, making it unsuitable for AEC-compliant 24 V systems.
Availability
BC847W-QF is available at Aetrix Electronics and suitable for automotive interior lighting control, industrial sensor signal conditioning, and consumer appliance motor driver stage applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BC847W-QF 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.
The BC847xW-Q series belongs to Nexperia's AEC-Q101-qualified general-purpose transistor portfolio, engineered specifically for robust, space-efficient switching and amplification in harsh automotive and industrial environments.
FAQ
Is BC847W-QF pin-compatible with BC847B-Q or BC847C-Q?
Yes - all BC847xW-Q variants share identical SOT323 (SC-70) pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. Gain binning (W/A/B/C) does not affect physical layout or electrical pin functions, enabling drop-in replacement within the same package family.
What is the maximum allowable continuous collector current at 85 °C ambient?
At Tamb = 85 °C, derating applies: Ptot drops linearly from 200 mW at 25 °C to 0 mW at 150 °C. At 85 °C, max power is ~130 mW. With VCE(sat) ≈ 300 mV, IC ≤ 433 mA would exceed thermal limits - but absolute max IC remains 100 mA per limiting values, regardless of temperature.
Does BC847W-QF support PWM switching at 25 kHz?
Yes - with fT = 100 MHz and typical switching times (ton/toff) <100 ns, BC847W-QF fully supports 25 kHz PWM for LED dimming or motor speed control. Ensure base drive strength (IB ≥ IC/20) and minimize trace inductance to maintain clean edges.
How does the marking code "1H%" correlate to BC847W-QF?
"1H%" is the top-side laser marking for BC847W-QF per Table 5: "1H" identifies the type number, and "%" is a placeholder for the manufacturing site code (e.g., "A" for Nijmegen, "B" for Bangkok). This matches Nexperia's standardized SOT323 marking convention and confirms authenticity.
BC847W-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- 110 @ 2mA, 5V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC847W-QF FAQ
1.How can I place an order for BC847W-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847W-QF 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 BC847W-QF reliable?
The price and inventory of BC847W-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847W-QF is usually 5 days.
3.What payment methods are accepted for BC847W-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847W-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847W-QF?
BC847W-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847W-QF 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 BC847W-QF?
For technical support, including BC847W-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847W-QF requirements.
6.How does Aetrix verify that BC847W-QF is sourced from the original manufacturer or authorized distributors?
All BC847W-QF 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 BC847W-QF meets industry standards.
7.What is the process for return or replacement of BC847W-QF?
All BC847W-QF units undergo pre-shipment inspection (PSI). If there is an issue with BC847W-QF, 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 BC847W-QF part is unused and in its original packaging.
Return procedure for BC847W-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847W-QF Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
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