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NXP Semiconductors BC847AT,115
- Part No.:
- BC847AT,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single Bipolar Transistors
- Package:
- SC-75, SOT-416
- Datasheet:
-
BC847AT,115.pdf
- Description:
- TRANS NPN 45V 0.1A SC-75
- Quantity:
- Payment:
- Shipping:
Inventory:3,005
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Product details
Overview
BC847AT,115 from Nexperia is an NPN general-purpose transistor in SOT416 (SC-75) surface-mount package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 110–220 (Group A). It operates as a low-voltage switching or small-signal amplification device in compact consumer and industrial PCBs.
For engineers reviewing the BC847AT,115 datasheet, BC847AT,115 pinout, BC847AT,115 application, or BC847AT,115 equivalent, this page delivers verified electrical parameters, thermal limits, AEC-Q101 qualification status, SOT416 footprint details, and real-world use cases - all specific to the BC847AT,115 variant.
Technical Context
The BC847AT,115 is a silicon planar epitaxial NPN transistor optimized for general-purpose linear and switching applications at ambient temperatures from −65 °C to +150 °C. Its Group A hFE range (110–220 at VCE = 5 V, IC = 2 mA) ensures predictable biasing in amplifier stages and digital logic interfaces.
It features VCEO = 45 V, VCB0 = 50 V, and VEB0 = 6 V limiting values, with a maximum Ptot of 150 mW at Tamb ≤ 25 °C in free air. Thermal resistance Rth(j-a) is 833 K/W, confirming suitability for low-power, space-constrained designs where self-heating must be tightly managed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown; defines safe operating voltage headroom in 24 V and lower supply rails. |
| IC | 100 mA - Continuous collector current rating; supports signal-level switching and pre-driver functions without derating at 25 °C. |
| hFE (Group A) | 110–220 - Confirmed DC current gain range at VCE = 5 V, IC = 2 mA; enables stable bias design in common-emitter amplifier configurations. |
| VCE(sat) | 90–200 mV at IC = 10 mA / IB = 0.5 mA - Low saturation voltage minimizes power loss and heat generation in on-state switching applications. |
| Ptot | 150 mW - Total power dissipation limit in SOT416 package; requires thermal-aware layout with adequate copper area for sustained operation. |
| fT | 100 MHz - Transition frequency confirms usable bandwidth up to audio and low-speed digital signal frequencies. |
| AEC-Q101 | Qualified - Meets automotive-grade stress test requirements for discrete semiconductors; suitable for under-hood and infotainment subsystems. |
Pinout & Package
SOT416 (SC-75) is a leadless ultra-small plastic surface-mount package measuring 1.75 × 1.45 × 0.9 mm, designed for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal for forward-biased junction; requires current-limited drive (e.g., via 10 kΩ resistor) to achieve specified hFE-based switching. |
| 2 | Emiter | Common reference node in common-emitter configuration; connected to ground or low-impedance return path for stable biasing. |
| 3 | Collector | Output current path; handles switched load current up to 100 mA with <200 mV saturation drop at IC/IB = 20. |
Key Features
| Feature | Design Value |
|---|---|
| NPN general-purpose transistor | Enables both analog amplification (e.g., sensor signal conditioning) and digital switching (e.g., LED/microcontroller interface) with one standardized component. |
| SOT416 (SC-75) package | Reduces board area by ~40% vs. SOT23; supports fine-pitch routing and automated placement in wearables and IoT edge nodes. |
| hFE Group A selection | Guarantees consistent current gain across production lots, simplifying BOM control and eliminating binning during manufacturing. |
| AEC-Q101 qualification | Validates reliability for automotive cabin electronics including HVAC controls, body modules, and lighting drivers without additional qualification testing. |
| Low VCE(sat) | Ensures <0.2 V drop at full 100 mA load, reducing power loss to <20 mW and enabling direct drive of small relays or optocouplers. |
Applications
| Automotive Cabin Control | Portable Sensor Interface |
|---|---|
Use Scenario: Driving 12 V indicator LEDs and small solenoids in door module PCBs. IC Role / Device Role / Timing Role: NPN switch controlling current path between 12 V rail and grounded load. Use Value: Low VCE(sat) (<200 mV) minimizes heat rise in confined plastic housings; AEC-Q101 ensures 15-year field reliability. |
Use Scenario: Amplifying microamp-level output from MEMS temperature/humidity sensors in Bluetooth earbuds. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier stage with fixed bias network. Use Value: Stable hFE group A (110–220) enables repeatable gain calibration; SOT416 footprint fits sub-10 mm² sensor subassemblies. |
| Industrial PLC Input Buffer | USB-C Power Path Switch |
Use Scenario: Level-shifting and isolating 24 V dry-contact inputs into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Digital switch translating industrial voltage levels while providing galvanic separation. Use Value: 45 V VCEO accommodates transient surges on factory floor wiring; 150 mW Ptot allows continuous operation without heatsinking. |
Use Scenario: Enabling/disabling VBUS paths in USB-C port controllers for reversible cable detection. IC Role / Device Role / Timing Role: Low-side enable switch controlling power delivery to CC logic circuitry. Use Value: Fast turn-on/off (driven by 3.3 V GPIO) and low leakage (<15 nA ICBO) prevent false detection during hot-plug events. |
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,115 | Same SOT416 package but hFE Group B (200–450); higher gain, slightly higher VCE(sat) at low IB. | Better suited for low-drive applications (e.g., microcontroller GPIO with limited sink current), less ideal where gain stability dominates. | Select BC847BW,115 only when higher hFE is required to reduce base drive burden; verify saturation margin at target IC/IB ratio. |
| MMBT3904LT1G | SOT23 package (larger footprint), same 40 V VCEO, 200 mA IC, hFE 100–300; not AEC-Q101 qualified. | Higher current capability but lacks automotive qualification; thermal resistance (500 K/W) is superior to BC847AT,115's 833 K/W. | Choose MMBT3904LT1G for non-automotive, higher-current, or thermally demanding applications where board space permits SOT23. |
Compared with BC847AT,115, BC847BW,115 offers higher gain at the cost of tighter hFE distribution control, while MMBT3904LT1G trades automotive qualification and miniaturization for higher current handling and better thermal performance in larger packages.
Availability
BC847AT,115 is available at Aetrix Electronics and suitable for automotive cabin electronics, portable sensor interfaces, industrial PLC input buffers, and USB-C power path management requiring stable component supply and long-term manufacturability.
Supply support for BC847AT,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 leader in high-volume production of discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The BC847AT,115 belongs to Nexperia's BC847 series of general-purpose NPN transistors, engineered for reliable switching and amplification in space-constrained, thermally sensitive, and automotive-qualified applications.
FAQ
What is the package type of BC847AT,115?
The BC847AT,115 uses the SOT416 (SC-75) package - a leadless ultra-small surface-mount outline measuring 1.75 × 1.45 × 0.9 mm, optimized for high-density PCBs and compatible with standard reflow soldering profiles. This differs from the SOT23 or SOT323 variants in the BC847 family.
Is BC847AT,115 qualified for automotive applications?
Yes, BC847AT,115 is AEC-Q101 qualified per Nexperia's official product documentation, confirming its suitability for automotive electronic systems including cabin controls, body electronics, and infotainment subsystems where reliability under temperature cycling and vibration is critical.
What is the DC current gain (hFE) range for BC847AT,115?
The BC847AT,115 is a Group A device with a guaranteed hFE range of 110 to 220 when measured at VCE = 5 V and IC = 2 mA. This tight gain band supports consistent biasing in amplifier and switching circuits without post-production sorting.
What is the maximum power dissipation of BC847AT,115?
The BC847AT,115 has a maximum total power dissipation (Ptot) of 150 mW at ambient temperature ≤ 25 °C in free air. Derating is required above 25 °C, following the thermal resistance Rth(j-a) of 833 K/W specified for the SOT416 package.
How does BC847AT,115 differ from BC847A in SOT23?
While both are Group A NPN transistors, BC847AT,115 uses the smaller SOT416 package (1.75 × 1.45 mm) versus SOT23 (3.0 × 1.4 mm), resulting in 40% less board area. Its Ptot is lower (150 mW vs. 250 mW), and Rth(j-a) is higher (833 K/W vs. 500 K/W), requiring more careful thermal design despite identical electrical specs.
BC847AT,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-75, SOT-416
- 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:
- 110 @ 2mA, 5V
- Power - Max:
- 150 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75
BC847AT,115 FAQ
1.How can I place an order for BC847AT,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847AT,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 BC847AT,115 reliable?
The price and inventory of BC847AT,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847AT,115 is usually 5 days.
3.What payment methods are accepted for BC847AT,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847AT,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847AT,115?
BC847AT,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847AT,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 BC847AT,115?
For technical support, including BC847AT,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847AT,115 requirements.
6.How does Aetrix verify that BC847AT,115 is sourced from the original manufacturer or authorized distributors?
All BC847AT,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 BC847AT,115 meets industry standards.
7.What is the process for return or replacement of BC847AT,115?
All BC847AT,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC847AT,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 BC847AT,115 part is unused and in its original packaging.
Return procedure for BC847AT,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847AT,115 Tags
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MMBT3904-7-F
Diodes Incorporated
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Micro Commercial Co
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BC847B,215
Nexperia USA Inc.
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