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Nexperia USA Inc. BC847AW-QF
- Part No.:
- BC847AW-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847AW-QF.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:6,977
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Product details
Overview
BC847AW-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 hFE of 110–220 at IC = 2 mA. It serves as a compact, automotive-grade switching and amplification device in space-constrained PCBs for body control modules and sensor interface circuits.
For engineers reviewing the BC847AW-QF datasheet, BC847AW-QF pinout, BC847AW-QF application, or BC847AW-QF equivalent, key selection criteria include DC current gain binning (A-grade), thermal resistance (625 K/W on FR4), saturation voltage (200 mV max at IC = 100 mA), and automotive qualification status.
Technical Context
This transistor operates as a low-power, medium-voltage NPN switch with base-controlled conduction. Its hFE range (110–220) enables predictable biasing in linear amplifier stages and reliable saturation in digital logic-level switching applications.
Designed for ambient temperatures from −65 °C to +150 °C and junction temperatures up to 150 °C, it supports operation in under-hood automotive environments. The SOT323 package delivers low thermal resistance (625 K/W) on standard FR4 PCBs with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; defines safe operating voltage headroom in 12 V/24 V automotive systems. |
| IC | 100 mA continuous - Supports load switching for LEDs, relays, and small solenoids without external heat sinking. |
| hFE | 110–220 at VCE = 5 V, IC = 2 mA - Tight gain bin ensures consistent base drive requirements across production lots. |
| VCE(sat) | 200–400 mV at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss and self-heating during switching. |
| Ptot | 200 mW at Tamb ≤ 25 °C - Limits usable power in ambient-restricted enclosures; derates linearly above 25 °C. |
| Rth(j-a) | 625 K/W - Thermal resistance on FR4 PCB dictates maximum allowable power dissipation before junction overheating. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive applications, including temperature cycling and HTRB. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with 3 leads; dimensions: 2.2 mm × 1.35 mm × 0.95 mm (L × W × H); standard footprint per Fig. 15 (reflow soldering).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires ~0.66 V forward bias and sufficient IB to achieve target IC with specified hFE. |
| 2 | Emitter (E) | Current return path; connected to ground or low-side reference; establishes common node for bias network. |
| 3 | Collector (C) | Output terminal; handles switched load current; must be isolated from high-voltage transients via layout and clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements-enables direct deployment in ASIL-B supporting subsystems without requalification. |
| Three hFE gain bins (W/A/B/C) | BC847AW-QF's 110–220 hFE range allows precise base resistor selection for stable DC bias in amplifier or switch designs. |
| SOT323 (SC-70) package | 0.95 mm profile and 2.2 mm × 1.35 mm footprint enable high-density routing in compact ECUs and ADAS sensor nodes. |
| Low VCE(sat) | ≤400 mV at full 100 mA load ensures <40 mW conduction loss-critical for thermally constrained battery-powered modules. |
Applications
| Automotive Body Control Unit | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving LED status indicators and small relays in door module PCBs. IC Role / Device Role / Timing Role: NPN switch controlling 12 V loads with microcontroller GPIO-level base drive. Use Value: Low VCE(sat) reduces heat buildup in sealed modules; AEC-Q101 ensures reliability over 15-year vehicle lifetime. |
Use Scenario: Amplifying low-level analog signals from RTD or thermistor bridges. IC Role / Device Role / Timing Role: Linear-mode common-emitter amplifier stage with fixed bias network. Use Value: Tight hFE binning (110–220) maintains consistent gain across temperature and production batches. |
| Consumer IoT Power Management | Medical Portable Device Interface |
Use Scenario: Enabling/disabling peripheral sensors in battery-operated smart home hubs. IC Role / Device Role / Timing Role: Low-quiescent-current load switch controlled by MCU output pin. Use Value: 100 nA IEBO and 15 nA ICBO minimize standby leakage, extending battery life in always-on designs. |
Use Scenario: Isolating microcontroller I/O from external patient-connected analog front-end circuits. IC Role / Device Role / Timing Role: Level-shifting and galvanic isolation buffer in signal path. Use Value: 6 V VEBO rating provides margin against ESD events; SC-70 package eases layout separation for safety creepage. |
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-Q | hFE = 200–450 (higher gain bin); same VCEO, IC, package, and AEC-Q101 status. | Better suited for low-base-drive applications (e.g., weak GPIOs), but may require revised bias resistors. | Select when higher hFE improves noise immunity or reduces base current demand in low-power designs. |
| MMBT3904LT1G | hFE = 100–300; VCEO = 40 V; not AEC-Q101 qualified; same SOT-23 package (not SOT323). | Lacks automotive qualification; different footprint requires PCB redesign; lower voltage rating limits 24 V system use. | Acceptable only for non-automotive industrial or consumer applications where qualification and footprint compatibility are verified. |
Compared with BC847BW-Q and MMBT3904LT1G, BC847AW-QF offers balanced gain, guaranteed automotive qualification, and the smallest footprint-making it optimal for space- and reliability-critical automotive modules where consistent biasing and long-term stability are required.
Availability
BC847AW-QF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply and long-lifecycle support.
Supply support for BC847AW-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 high-volume, high-reliability essential semiconductors-including logic, discretes, MOSFETs, and ESD protection devices.
The BC847xW-Q series belongs to Nexperia's automotive-qualified general-purpose transistor product line, engineered specifically for robust, cost-effective switching and amplification in harsh-environment electronic control units.
FAQ
What is the maximum junction temperature for BC847AW-QF?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in IEC 60134 limiting values. Operation at this limit requires strict thermal management-derating is mandatory above 25 °C ambient, with Rth(j-a) = 625 K/W on standard FR4 PCBs.
Is BC847AW-QF pin-compatible with BC847W-Q or BC847BW-Q?
Yes-BC847AW-QF shares identical SOT323 package, pinout (B-E-C), and mechanical footprint with all BC847xW-Q variants. Only hFE binning differs; no PCB or schematic changes are needed when substituting within the series.
Does BC847AW-QF support pulsed operation beyond its DC ratings?
Yes-peak collector current (ICM) is rated at 200 mA for single pulses ≤1 ms, and peak base current (IBM) at 100 mA under same conditions. Pulse operation must respect thermal time constants shown in Figure 1 (Zth(j-a) curves).
How does the marking code "1E%" identify BC847AW-QF on the device?
The top-side marking "1E%" denotes BC847AW-QF, where "1E" is the type-specific code and "%" is a placeholder for the manufacturing site identifier (e.g., "1E1" for one facility). This matches Table 5 in the official Nexperia datasheet Rev. 2.
BC847AW-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
BC847AW-QF FAQ
1.How can I place an order for BC847AW-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847AW-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 BC847AW-QF reliable?
The price and inventory of BC847AW-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847AW-QF is usually 5 days.
3.What payment methods are accepted for BC847AW-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847AW-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847AW-QF?
BC847AW-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847AW-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 BC847AW-QF?
For technical support, including BC847AW-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847AW-QF requirements.
6.How does Aetrix verify that BC847AW-QF is sourced from the original manufacturer or authorized distributors?
All BC847AW-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 BC847AW-QF meets industry standards.
7.What is the process for return or replacement of BC847AW-QF?
All BC847AW-QF units undergo pre-shipment inspection (PSI). If there is an issue with BC847AW-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 BC847AW-QF part is unused and in its original packaging.
Return procedure for BC847AW-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847AW-QF Tags
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