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Nexperia USA Inc. BC846AW,115
- Part No.:
- BC846AW,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC846AW,115.pdf
- Description:
- TRANS NPN 65V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:4,891
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Product details
Overview
BC846AW,115 from Nexperia is an NPN general-purpose bipolar junction transistor (BJT) in SOT323 (SC-70) package, rated for 65 V VCEO, 100 mA IC, and DC current gain (hFE) of 110–220 at VCE = 5 V, IC = 2 mA. It serves as a low-power switching or small-signal amplification device in compact consumer and industrial PCBs.
For engineers reviewing the BC846AW,115 datasheet, BC846AW,115 pinout, BC846AW,115 application, or BC846AW,115 equivalent, this part is selected for cost-sensitive, space-constrained designs requiring stable hFE grouping, low saturation voltage, and proven thermal performance on FR4 PCBs.
Technical Context
The BC846AW operates as a discrete NPN BJT with fixed gain binning (Group A: hFE = 110–220), optimized for linear amplification and digital switching where predictable base drive and low VCE(sat) (<200 mV at IC = 100 mA, IB = 5 mA) are critical. Its SOT323 footprint supports high-density routing and reflow compatibility.
Thermal resistance Rth(j-a) is 625 K/W under standard FR4 mounting (single-sided, 35 µm Cu), and it sustains operation from −65 °C to +150 °C ambient, with absolute maximum ratings including 80 V VCBO, 6 V VEBO, and 200 mW Ptot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 65 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in switching applications. |
| IC | 100 mA continuous - Max DC collector current; sets upper limit for load-driving capability in signal paths. |
| hFE | 110–220 at VCE = 5 V, IC = 2 mA - Tight gain binning enables consistent biasing without individual trimming. |
| VCE(sat) | 200 mV max at IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss in switch-mode operation. |
| Ptot | 200 mW at Tamb ≤ 25 °C - Thermal dissipation limit on standard FR4; requires derating above 25 °C ambient. |
| fT | 100 MHz - Transition frequency confirms suitability for audio-frequency amplification and low-speed digital switching. |
| Cc | 2–3 pF - Collector capacitance impacts high-frequency response and noise coupling in RF-adjacent circuits. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: ultra-compact 3-pin outline (2.2 mm × 1.35 mm × 0.95 mm), designed for automated placement and reflow soldering on fine-pitch PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; accepts low-current input to modulate collector-emitter conduction; requires series resistor for current limiting. |
| 2 | Emitter (E) | Reference terminal for bias network; connected to ground or common return path in common-emitter configurations. |
| 3 | Collector (C) | Output terminal; carries switched or amplified load current; routed to higher-voltage rail or signal node. |
Key Features
| Feature | Design Value |
|---|---|
| Gain-binned hFE group (A) | 110–220 - Enables predictable DC bias design without post-layout gain calibration. |
| Low VCE(sat) | ≤200 mV at full-rated IC - Reduces conduction loss and self-heating in battery-powered or thermally constrained systems. |
| SOT323 footprint | 0.65 mm pitch, 2.2 mm × 1.35 mm body - Supports high component density and compatibility with standard 0805-class pick-and-place equipment. |
| JEDEC SC-70 compliance | Industry-standard mechanical and thermal definition - Ensures interoperability with existing stencil designs and reflow profiles. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V microcontroller outputs. IC Role / Device Role / Timing Role: NPN switch enabling logic-level-controlled current sink for LED anodes tied to VCC. Use Value: Low VCE(sat) ensures >95% forward voltage reaches LED; tight hFE binning guarantees consistent brightness across production units. |
Use Scenario: Level-shifting and current boosting for legacy 5 V peripherals interfaced to 3.3 V MCUs. IC Role / Device Role / Timing Role: Active-low buffer stage translating MCU output to higher-current 5 V logic signals. Use Value: 100 mA IC rating supports multiple parallel loads; SOT323 size fits dense I/O header layouts. |
| Audio Pre-amplifier Stage | Power Supply Enable Switch |
|
Use Scenario: Low-noise voltage amplification of electret microphone output in portable audio devices. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for stable gain and bandwidth. Use Value: fT = 100 MHz and NF = 2–10 dB support clean mid-band audio amplification without oscillation risk. |
Use Scenario: Enabling/disabling auxiliary 12 V rails in embedded power management subsystems. IC Role / Device Role / Timing Role: High-side or low-side enable switch controlling PMOS/NMOS gate drive signals. Use Value: 65 V VCEO safely isolates control logic from higher-voltage domains; 150 °C Tj rating accommodates enclosure temperature rise. |
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 |
|---|---|---|---|
| BC847AW,115 | hFE = 200–450 (Group A); otherwise identical ratings and package. | Higher gain enables lower base drive current but increases sensitivity to temperature drift. | Select when tighter base-current budget exists and gain stability over temperature is managed externally. |
| MMBT3904LT1G | Same SOT23 package; hFE = 100–300; VCEO = 40 V; Ptot = 310 mW. | Lower voltage rating limits use in >40 V circuits; higher power dissipation allows marginally higher IC at elevated ambient. | Choose only if board layout already uses SOT23 footprints and system VCE remains ≤40 V. |
Compared with BC846AW,115, BC847AW,115 offers higher hFE for reduced base drive but less gain consistency across temperature, while MMBT3904LT1G trades voltage headroom for thermal margin in SOT23-neither matches BC846AW's exact 65 V/200 mW/SOT323 balance.
Availability
BC846AW,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface expansion, audio pre-amplification stages, and power supply enable switching requiring stable component supply and JEDEC-compliant SMT packaging.
Supply support for BC846AW,115 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 for automotive, industrial, mobile, and computing markets.
The BC846xW series belongs to Nexperia's general-purpose discrete transistor product line, engineered for cost-effective, space-efficient switching and amplification in consumer and industrial electronics where robustness and manufacturability are prioritized.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The BC846AW,115 has a maximum junction temperature (Tj) of 150 °C. With a thermal resistance Rth(j-a) of 625 K/W on standard FR4, power dissipation must be limited to ~160 mW at 25 °C ambient to stay within 125 °C Tj. Derating curves in Figure 1 show allowable pulse power versus duration, guiding thermal pad sizing and airflow requirements.
How does the hFE binning of BC846AW differ from BC846BW?
BC846AW is Group A (hFE = 110–220 at VCE = 5 V, IC = 2 mA), while BC846BW is Group B (hFE = 200–450). This binning enables precise bias network design: Group A provides tighter spread for predictable DC operating points, whereas Group B suits applications needing higher gain with tolerance for wider variation.
Can BC846AW,115 replace BC846W in existing designs?
Yes-both share identical package, pinout, and absolute maximum ratings. The key difference is hFE: BC846W spans 110–450, while BC846AW is restricted to 110–220. If original design relied on minimum hFE ≥110 and operated within Group A's gain window, substitution is functionally safe and improves gain consistency.
What is the significance of the "115" suffix in BC846AW,115?
The "115" is Nexperia's ordering code denoting tape-and-reel packaging per EIA-481 standard: 3,000 units per reel, 8 mm carrier tape width, and embossed pocket configuration. It does not indicate parameter variation or revision level-the electrical specs match the BC846AW base type defined in Rev. 12 (2023).
BC846AW,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC846xW
- 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):
- 65 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC846AW,115 FAQ
1.How can I place an order for BC846AW,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC846AW,115 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 BC846AW,115 reliable?
The price and inventory of BC846AW,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC846AW,115 is usually 5 days.
3.What payment methods are accepted for BC846AW,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC846AW,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC846AW,115?
BC846AW,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC846AW,115 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 BC846AW,115?
For technical support, including BC846AW,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC846AW,115 requirements.
6.How does Aetrix verify that BC846AW,115 is sourced from the original manufacturer or authorized distributors?
All BC846AW,115 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 BC846AW,115 meets industry standards.
7.What is the process for return or replacement of BC846AW,115?
All BC846AW,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC846AW,115, 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 BC846AW,115 part is unused and in its original packaging.
Return procedure for BC846AW,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC846AW,115 Tags
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