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Nexperia USA Inc. BC847CW/MIF
- Part No.:
- BC847CW/MIF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847CW/MIF.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:7,548
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Product details
Overview
BC847CW/MIF from Nexperia is an NPN general-purpose transistor in SOT323 (SC-70) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 420–800 at VCE = 5 V, IC = 2 mA. It serves as a low-power switching and amplification device in compact consumer, industrial, and communication circuitry.
For engineers reviewing the BC847CW/MIF datasheet, BC847CW/MIF pinout, BC847CW/MIF application, or BC847CW/MIF equivalent, this page delivers verified electrical parameters, validated SOT323 terminal mapping, real-world use cases, and technically accurate alternative part comparisons - all grounded in Nexperia's Rev. 13 product data sheet.
Technical Context
The BC847CW/MIF operates as a silicon NPN bipolar junction transistor optimized for linear amplification and saturated switching in low-voltage, low-current signal paths. Its hFE range (420–800) enables precise biasing stability across temperature (−55 °C to 150 °C), while its 625 K/W junction-to-ambient thermal resistance reflects performance on standard FR4 PCBs with single-sided copper.
It features VCEO = 45 V, VCB0 = 50 V, and VEB0 = 6 V absolute maximum ratings, supporting robust operation in 3.3 V and 5 V logic-level interfaces. Saturation voltage remains ≤400 mV at IC = 100 mA / IB = 5 mA, ensuring efficient low-loss switching in discrete driver stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; supports 3.3 V/5 V rail applications with margin. |
| IC | 100 mA - Continuous collector current rating; suitable for LED drivers, sensor interface loads, and logic buffers. |
| hFE | 420–800 @ VCE = 5 V, IC = 2 mA - High, tightly binned DC gain enables stable bias design without feedback trimming. |
| VCE(sat) | ≤400 mV @ IC = 100 mA, IB = 5 mA - Low saturation voltage minimizes power loss in switching mode. |
| Ptot | 200 mW @ Tamb ≤ 25 °C - Power dissipation limit on standard FR4 PCB; defines thermal derating envelope. |
| fT | 100 MHz @ VCE = 5 V, IC = 10 mA - Transition frequency confirms usability up to low-MHz analog signal amplification. |
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 PCB layouts and reflow/wave soldering per Nexperia's recommended land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires ~5 mA base drive for full 100 mA collector conduction in saturation. |
| 2 | Emitter (E) | Reference terminal for bias network; connected to ground or low-impedance return path in common-emitter configurations. |
| 3 | Collector (C) | Output current sink node; handles switched load current up to 100 mA with <400 mV drop in saturation. |
Key Features
| Feature | Design Value |
|---|---|
| Three gain selections | BC847CW provides hFE = 420–800 - enables predictable bias point selection without external gain-setting resistors. |
| SOT323 (SC-70) package | 0.95 mm profile and 2.2 mm × 1.35 mm footprint - reduces board area by >50% vs. SOT23, critical for wearables and IoT sensors. |
| 150 °C max junction temperature | Enables reliable operation in sealed enclosures or near heat sources without forced cooling. |
| Low VBE(sat) | ≤900 mV @ IC = 100 mA, IB = 5 mA - ensures sufficient base drive margin from 3.3 V microcontroller GPIOs. |
Applications
| LED Indicator Driver | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA status LEDs from 3.3 V MCU pins with current limiting via base resistor. IC Role / Device Role / Timing Role: Discrete NPN switch enabling low-side LED sinking with minimal footprint. Use Value: Delivers consistent 20 mA LED current with <100 mV VCE(sat) overhead, preserving headroom for logic-level compatibility. |
Use Scenario: Amplifying weak analog sensor outputs (e.g., thermistor divider) into ADC-input ranges. IC Role / Device Role / Timing Role: Common-emitter amplifier stage providing 10–20× voltage gain with bandwidth >1 MHz. Use Value: High hFE (420–800) ensures stable gain without emitter degeneration, reducing component count. |
| Level-Shifting Interface | Relay Coil Driver |
|
Use Scenario: Translating 1.8 V logic signals to 5 V domains in mixed-voltage systems. IC Role / Device Role / Timing Role: Active pull-up/pull-down switch operating in linear or saturated region. Use Value: VCEO = 45 V and low VCE(sat) allow clean 5 V output swing with <0.4 V dropout at 10 mA load. |
Use Scenario: Switching 12 V, 40 mA relay coils using 3.3 V microcontroller outputs. IC Role / Device Role / Timing Role: Low-side coil driver with flyback diode protection integrated externally. Use Value: 100 mA IC rating and 400 mV VCE(sat) ensure <50 mW dissipation during 100 ms activation pulses. |
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 |
|---|---|---|---|
| BC847CMTF | Same hFE bin (420–800), identical SOT323 package, but marked "MTF" indicating different tape/reel packaging and traceability. | No functional difference; compatible in all electrical and mechanical respects. | Select when requiring MTF-series logistics or specific distributor inventory alignment. |
| MMBT3904LT1G | Lower hFE (100–300), same 40 V VCEO, 200 mW Ptot, but wider gain spread increases bias sensitivity. | Less suitable for precision gain-critical amplifiers; acceptable for basic switching where gain tolerance >3× is acceptable. | Choose only if BC847CW/MIF is unavailable and design tolerates higher base current variability. |
Compared with BC847CMTF, BC847CW/MIF offers identical electrical behavior and form factor but distinct manufacturing traceability; versus MMBT3904LT1G, it delivers tighter hFE control and higher VCEO, making it preferable for noise-sensitive amplification and 5 V system interfacing.
Availability
BC847CW/MIF is available at Aetrix Electronics and suitable for LED indicator drivers, microcontroller GPIO expansion, level-shifting interfaces, and relay coil driving requiring stable component supply across production volumes.
Supply support for BC847CW/MIF 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 discrete and logic devices, with leadership in automotive, industrial, and mobile applications.
The BC847xW series targets cost-sensitive, space-constrained designs needing proven NPN switching and amplification performance - delivering factory-binned gain, industry-standard SC-70 packaging, and extended temperature capability.
FAQ
What is the maximum continuous collector current for BC847CW/MIF?
The BC847CW/MIF is rated for 100 mA continuous collector current (IC) at ambient temperatures ≤25 °C on a standard FR4 PCB. Derating applies above 25 °C per the thermal resistance Rth(j-a) = 625 K/W; at 70 °C ambient, usable IC drops to approximately 65 mA to maintain Tj ≤150 °C.
Does BC847CW/MIF support 3.3 V microcontroller GPIO direct drive?
Yes - with IC = 20 mA and hFE ≥420, base current requirement is ≤48 µA. A 3.3 V GPIO can easily source this via a 68 kΩ base resistor, and VBE(sat) ≤900 mV ensures sufficient forward bias even at low drive voltages.
How does BC847CW/MIF differ from BC847BW in practical design?
BC847CW/MIF has higher hFE (420–800 vs. 200–450), enabling lower base current and improved bias stability in amplifiers. In switching applications, it achieves deeper saturation at lighter base drive, reducing power loss and improving noise immunity in marginal drive conditions.
Is BC847CW/MIF qualified for automotive applications?
No - per Nexperia's Rev. 13 datasheet, BC847CW/MIF is non-automotive qualified. It lacks AEC-Q101 stress testing and automotive-grade traceability. For automotive use, select the BC847CW-Q series, which carries explicit AEC-Q101 qualification and extended temperature validation.
BC847CW/MIF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 420 @ 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
BC847CW/MIF FAQ
1.How can I place an order for BC847CW/MIF through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847CW/MIF 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 BC847CW/MIF reliable?
The price and inventory of BC847CW/MIF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847CW/MIF is usually 5 days.
3.What payment methods are accepted for BC847CW/MIF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847CW/MIF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847CW/MIF?
BC847CW/MIF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847CW/MIF 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 BC847CW/MIF?
For technical support, including BC847CW/MIF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847CW/MIF requirements.
6.How does Aetrix verify that BC847CW/MIF is sourced from the original manufacturer or authorized distributors?
All BC847CW/MIF 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 BC847CW/MIF meets industry standards.
7.What is the process for return or replacement of BC847CW/MIF?
All BC847CW/MIF units undergo pre-shipment inspection (PSI). If there is an issue with BC847CW/MIF, 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 BC847CW/MIF part is unused and in its original packaging.
Return procedure for BC847CW/MIF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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