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NXP Semiconductors BC847BW/DG,115
- Part No.:
- BC847BW/DG,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847BW/DG,115.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:21,000
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Product details
Overview
BC847BW/DG,115 from NXP Semiconductors is an NPN general-purpose transistor in SOT323 (SC-70) surface-mount plastic package, rated for 45 V VCEO, 100 mA IC, and hFE group B (200–450), used for low-voltage switching and small-signal amplification in consumer and industrial PCBs.
For engineers reviewing the BC847BW/DG,115 datasheet, BC847BW/DG,115 pinout, BC847BW/DG,115 application, or BC847BW/DG,115 equivalent, this page delivers verified electrical specs, thermal limits, package dimensions, real-world use cases, and validated alternative transistors - all confirmed against NXP's BC847_SER Rev. 8 data sheet.
Technical Context
This discrete NPN bipolar junction transistor operates with a maximum collector-emitter voltage of 45 V and continuous collector current up to 100 mA. Its DC current gain falls within the B-group range (200–450 at VCE = 5 V, IC = 2 mA), and it exhibits VCE(sat) ≤ 200 mV at IC = 10 mA / IB = 0.5 mA.
Designed for surface-mount assembly on FR4 PCBs, the BC847BW/DG,115 has a thermal resistance Rth(j-a) of 625 K/W in free air and a junction temperature limit of 150 °C. It supports reflow soldering per SOT323 footprint standards and features low noise figure (2–10 dB) and transition frequency fT ≥ 100 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage with base open; defines upper rail voltage limit in switching applications. |
| IC | 100 mA - Continuous DC collector current rating; sets load drive capability in linear or saturated operation. |
| hFE (Group B) | 200–450 - Confirmed DC current gain range at VCE = 5 V, IC = 2 mA; enables predictable base drive sizing. |
| VCE(sat) | ≤200 mV @ IC=10 mA/IB=0.5 mA - Low saturation voltage minimizes power loss and heating in switch-mode operation. |
| fT | ≥100 MHz - Transition frequency confirms usable bandwidth for audio and low-speed digital signal amplification. |
| Rth(j-a) | 625 K/W - Thermal resistance from junction to ambient in free air; informs derating requirements on standard FR4 PCBs. |
| Ptot | 200 mW - Total power dissipation limit at Tamb ≤ 25 °C; constrains simultaneous voltage/current operation. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package; 3 leads; body dimensions 2.2 × 1.35 × 0.9 mm (L × W × H); standard footprint per Figure 19 in BC847_SER Rev. 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal; requires current-limited drive (e.g., via series resistor) to bias transistor into active or saturation region. |
| 2 | Emiter | Common reference node in common-emitter configuration; connected to ground or low-side return path. |
| 3 | Collector | Output/load terminal; sinks current from VCC through external load when transistor is on. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE gain groups (A/B/C) | Enables precise gain matching across production batches; BC847BW/DG,115 belongs to Group B (200–450). |
| SOT323 (SC-70) package | Compact 2.2 × 1.35 mm footprint supports high-density PCB layouts while maintaining manufacturability with standard reflow profiles. |
| VCEO = 45 V, IC = 100 mA | Supports 24 V and 36 V rail switching and low-power analog stages without derating in typical ambient conditions. |
| fT ≥ 100 MHz | Validates suitability for audio preamplifiers, sensor signal conditioning, and clock buffer applications up to ~10 MHz. |
| Low VCE(sat) (≤200 mV) | Reduces conduction loss and self-heating in digital logic interface and LED driver circuits operating near saturation. |
Applications
| LED Driver Circuit | Microcontroller GPIO Interface |
|---|---|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V or 5 V microcontroller outputs. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode, sinking LED current to ground. Use Value: Low VCE(sat) ensures <10 mW power loss per LED channel; hFE ≥ 200 allows direct drive from MCU pins with minimal base resistor. |
Use Scenario: Level-shifting or current boosting between 1.8 V/3.3 V logic and 5 V peripherals. IC Role / Device Role / Timing Role: Discrete level translator using emitter-follower or common-emitter topology. Use Value: Verified fT ≥ 100 MHz supports clean edge transitions up to 10 MHz; tight hFE binning improves consistency across multiple channels. |
| Audio Signal Amplifier | Power Supply Enable Switch |
Use Scenario: Low-noise preamplification of electret microphone output signals. IC Role / Device Role / Timing Role: Common-emitter amplifier with emitter degeneration and DC bias network. Use Value: NF = 2–10 dB at 1 kHz and IC = 200 µA enables SNR > 60 dB in battery-powered voice recorders. |
Use Scenario: Enabling/disabling 12 V auxiliary rails in embedded systems via low-side control. IC Role / Device Role / Timing Role: Low-side switch controlling PMOS gate or relay coil. Use Value: 45 V VCEO margin accommodates inductive kickback; 100 mA IC rating covers typical enable loads (<50 mA). |
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 |
|---|---|---|---|
| BC847B,115 | SOT23 package (larger footprint, 250 mW Ptot, Rth(j-a) = 500 K/W); identical hFE group B and electrical specs. | Preferred where thermal headroom or hand-soldering ease is prioritized over board space. | Select BC847B,115 if PCB layout allows SOT23 and higher power dissipation is needed. |
| MMBT3904LT1G | Onsemi part in SOT23; hFE = 100–300 (lower max gain), VCEO = 40 V, fT = 300 MHz. | Better high-frequency response but reduced voltage margin; not drop-in due to different gain distribution. | Choose MMBT3904LT1G only after verifying 40 V VCEO suffices and gain variation is acceptable. |
Compared with BC847BW/DG,115, BC847B,115 offers better thermal performance in larger SOT23, while MMBT3904LT1G trades voltage margin for higher fT - both require layout or bias network review before substitution.
Availability
BC847BW/DG,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller interface designs, audio signal amplification, and power supply enable switches requiring stable component supply and consistent hFE binning.
Supply support for BC847BW/DG,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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The BC847 series was designed as a cost-optimized, high-volume family of general-purpose NPN/PNP transistors targeting board-level signal switching, amplification, and interface functions in space-constrained applications.
FAQ
What is the package type and marking code for BC847BW/DG,115?
The BC847BW/DG,115 uses the SOT323 (SC-70) plastic surface-mount package with dimensions 2.2 × 1.35 × 0.9 mm. Its marking code is '1F*', where '*' denotes the manufacturing site code - consistent with Table 5 in the NXP BC847_SER Rev. 8 datasheet. This marking appears laser-etched on the top surface of the device body.
What are the absolute maximum ratings for BC847BW/DG,115?
The BC847BW/DG,115 has absolute maximum ratings of VCEO = 45 V, VCBO = 50 V, VEBO = 6 V, IC = 100 mA, ICM = 200 mA (pulse), Ptot = 200 mW (SOT323), and Tj = 150 °C. These values are defined per IEC 60134 and assume mounting on standard FR4 PCB with single-sided copper, as specified in Table 6 of the BC847_SER Rev. 8 datasheet.
How does the hFE of BC847BW/DG,115 compare to other BC847 variants?
The BC847BW/DG,115 belongs to hFE Group B, with a guaranteed range of 200–450 at VCE = 5 V and IC = 2 mA. This differs from Group A (110–220) and Group C (420–800). All BC847xW variants share the SOT323 package, but only the letter suffix (A/B/C) indicates the hFE bin - confirmed in Tables 1 and 8 of the BC847_SER Rev. 8 datasheet.
Can BC847BW/DG,115 be used in audio amplifier designs?
Yes, BC847BW/DG,115 is suitable for low-noise audio preamplifier stages. Its noise figure is 2–10 dB at 1 kHz (IC = 200 µA, VCE = 5 V, RS = 2 kΩ), and fT ≥ 100 MHz supports bandwidth beyond audible range. The SOT323 package's low parasitic capacitance (Cc ≤ 1.5 pF) also helps preserve high-frequency fidelity in microphone or sensor front-end circuits.
Is BC847BW/DG,115 RoHS compliant and halogen-free?
Yes, BC847BW/DG,115 complies with RoHS Directive 2011/65/EU and is halogen-free per NXP's material declarations. The "DG" suffix in the orderable part number explicitly denotes compliance with both requirements, as documented in NXP's packaging and environmental specifications for the BC847 series.
BC847BW/DG,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- BC847xW
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- 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:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC847BW/DG,115 FAQ
1.How can I place an order for BC847BW/DG,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BW/DG,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 BC847BW/DG,115 reliable?
The price and inventory of BC847BW/DG,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BW/DG,115 is usually 5 days.
3.What payment methods are accepted for BC847BW/DG,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BW/DG,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BW/DG,115?
BC847BW/DG,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BW/DG,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 BC847BW/DG,115?
For technical support, including BC847BW/DG,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BW/DG,115 requirements.
6.How does Aetrix verify that BC847BW/DG,115 is sourced from the original manufacturer or authorized distributors?
All BC847BW/DG,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 BC847BW/DG,115 meets industry standards.
7.What is the process for return or replacement of BC847BW/DG,115?
All BC847BW/DG,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC847BW/DG,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 BC847BW/DG,115 part is unused and in its original packaging.
Return procedure for BC847BW/DG,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BW/DG,115 Tags
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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
-
MMBT3904-TP
Micro Commercial Co
-
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
onsemi
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MMBT2222A-TP
Micro Commercial Co
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MMBTA06LT1G
onsemi
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MMBT2222ALT1G
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