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Nexperia USA Inc. BC847CMB,315
- Part No.:
- BC847CMB,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- 3-XFDFN
- Datasheet:
-
BC847CMB,315.pdf
- Description:
- TRANS NPN 45V 0.1A DFN1006B-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,384
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Product details
Overview
BC847CMB,315 from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in a leadless ultra-small SOT883B package (1.0 × 0.6 × 0.37 mm), delivering 45 V VCEO, 100 mA IC, and DC current gain of 420–800 at VCE = 5 V / IC = 2 mA. It serves as a compact switching and amplification device in space-constrained mobile power management and signal conditioning circuits.
For engineers reviewing the BC847CMB,315 datasheet, BC847CMB,315 pinout, BC847CMB,315 application, or BC847CMB,315 equivalent, this page provides verified package dimensions, thermal resistance (500 K/W), saturation voltage (90–400 mV), noise figure (2–10 dB), and AEC-Q101 qualification status - all critical for automotive-grade PCB layout and reliability validation.
Technical Context
This discrete NPN transistor operates with open-base collector-emitter breakdown up to 45 V and emitter-base voltage limit of 6 V, supporting robust biasing in low-voltage logic interfaces. Its 250 mW total power dissipation at Tamb ≤ 25 °C enables use in thermally constrained modules without forced cooling.
The SOT883B package features three solder lands and a 0.37 mm profile, matching SOT23 power handling while reducing board area by >70%. Reflow soldering is the only recommended assembly method, per Nexperia's validated process guidelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage under open-base conditions; defines upper rail limit in switching applications. |
| IC | 100 mA - Continuous collector current rating; sets maximum load drive capability in linear or saturated operation. |
| hFE | 420–800 - DC current gain at VCE = 5 V / IC = 2 mA; determines base drive requirements for reliable saturation. |
| VCE(sat) | 90–400 mV - Collector-emitter saturation voltage across IC = 10–100 mA; directly impacts conduction loss and thermal rise. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance on FR4 PCB; informs derating curves for ambient temperatures up to +150 °C. |
| AEC-Q101 | Qualified - Validated for automotive discrete semiconductor stress testing; supports deployment in engine control, body electronics, and ADAS subsystems. |
Pinout & Package
SOT883B is a leadless, ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.37 mm with three solderable terminals and a transparent top view. Its low height and minimal footprint enable high-density routing in mobile and wearable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input node; requires current-limited drive to achieve target hFE-based saturation with <200 mV VCE(sat). |
| 2 | Emiter | Reference terminal for bias network; connects to ground or common return path in low-side switch configurations. |
| 3 | Collector | Output node carrying switched load current; routed to high-side supply or active load with ≤45 V potential. |
Key Features
| Feature | Design Value |
|---|---|
| Leadless ultra-small SMD | 1.0 × 0.6 × 0.37 mm body enables placement in <1.2 mm² board area - critical for ultra-thin mobile modules. |
| Power dissipation parity with SOT23 | 250 mW at Tamb = 25 °C matches legacy SOT23 performance while reducing footprint by >70%. |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock - supports Tier-1 ECU designs without requalification. |
| Low VCE(sat) | 90 mV typical at IC = 10 mA / IB = 0.5 mA reduces conduction loss in battery-powered sensor interface stages. |
Applications
| Automotive Body Control Module | Smartphone Power Sequencing |
|---|---|
|
Use Scenario: Driving LED indicators and small solenoids in door latch and mirror control units. IC Role / Device Role / Timing Role: Low-side NPN switch enabling microcontroller GPIO to sink up to 100 mA loads with <200 mV dropout. Use Value: AEC-Q101 qualification ensures operational stability across −40 °C to +125 °C ambient, eliminating need for external derating components. |
Use Scenario: Enabling/disabling auxiliary rails (e.g., camera sensor, NFC) during boot and sleep states. IC Role / Device Role / Timing Role: General-purpose switch controlled by AP GPIO; leverages 420–800 hFE to minimize base drive current and leakage. Use Value: 0.37 mm height allows co-placement beneath stacked memory packages, preserving Z-height budget in sub-8 mm smartphones. |
| Wearable Health Sensor Interface | Industrial IoT Node Signal Conditioning |
|
Use Scenario: Amplifying weak analog signals from photodiode or bio-potential sensors before ADC sampling. IC Role / Device Role / Timing Role: Common-emitter amplifier stage with stable hFE and low 2–10 dB noise figure at 1 kHz. Use Value: 1.5 pF collector capacitance minimizes high-frequency roll-off, preserving bandwidth in pulse oximetry front-ends. |
Use Scenario: Level-shifting and buffering digital I/O between 3.3 V MCU and 5 V industrial sensors or actuators. IC Role / Device Role / Timing Role: Digital switch operating in saturation/cutoff; uses fast transition frequency (100 MHz) for clean edge integrity. Use Value: SOT883B's reflow-only assembly compatibility ensures consistent solder joint reliability in automated production lines. |
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 | SOT323 package (2.1 × 1.25 × 0.95 mm); higher Rth(j-a) (380 K/W); same hFE range and VCEO. | Larger footprint and height; less suitable for ultra-thin wearables but easier to hand-solder and inspect. | Select when manual rework or optical inspection is required, or when thermal margin exceeds 500 K/W requirement. |
| BC847C,215 | SOT23 package (3.0 × 1.4 × 1.1 mm); identical electrical specs but 3× larger board area and 3× greater height. | Compatible with legacy SOT23 footprints; supports higher peak power (350 mW) due to improved thermal mass. | Choose for cost-sensitive industrial boards where space is not constrained and existing SOT23 tooling is in place. |
Compared with BC847CMB,315, the BC847BW,115 trades miniaturization for assembly flexibility, while the BC847C,215 prioritizes thermal headroom and legacy compatibility over size - making BC847CMB,315 optimal for next-gen space- and weight-critical designs.
Availability
BC847CMB,315 is available at Aetrix Electronics and suitable for automotive body electronics, smartphone power sequencing, wearable sensor interfaces, and industrial IoT node signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BC847CMB,315 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 essential efficiency technologies, delivering high-performance, high-reliability discrete and logic devices for automotive, industrial, and mobile markets.
The BC847xMB series targets space-constrained, high-volume applications demanding AEC-Q101 compliance and ultra-miniature packaging - specifically engineered for automotive infotainment, ADAS subsystems, and portable consumer electronics.
FAQ
Is BC847CMB,315 suitable for automotive applications?
Yes - it is fully qualified to AEC-Q101 standards for discrete semiconductors, including temperature cycling, humidity, and mechanical shock tests. Its guaranteed operation from −55 °C to +150 °C junction temperature and 45 V VCEO rating make it appropriate for non-safety-critical automotive body electronics and infotainment systems.
What is the recommended soldering method for SOT883B?
Reflow soldering is the only recommended method per Nexperia's documentation. The SOT883B package lacks leads and relies on precise thermal profiling to ensure reliable solder joint formation across its three solder lands. Wave soldering, hand soldering, or hot-air rework are not validated and may cause delamination or voiding.
How does BC847CMB,315 differ from BC847C,215?
Both share identical electrical specifications (45 V VCEO, 100 mA IC, 420–800 hFE), but BC847CMB,315 uses the ultra-small SOT883B package (1.0 × 0.6 × 0.37 mm), whereas BC847C,215 uses standard SOT23 (3.0 × 1.4 × 1.1 mm). This results in ~75% smaller board area and 66% lower profile - critical for modern mobile and wearable designs.
Can BC847CMB,315 replace BC847BMB in existing designs?
No - BC847CMB has higher hFE (420–800 vs. 200–450), which may cause unintended saturation or slower turn-off in circuits designed for BC847BMB's gain range. Base resistor values must be recalculated to maintain desired IB/IC ratio and switching speed; direct substitution without validation risks instability or excessive power dissipation.
BC847CMB,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XFDFN
- 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:
- 200mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 420 @ 2mA, 5V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006B-3
BC847CMB,315 FAQ
1.How can I place an order for BC847CMB,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847CMB,315 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 BC847CMB,315 reliable?
The price and inventory of BC847CMB,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847CMB,315 is usually 5 days.
3.What payment methods are accepted for BC847CMB,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847CMB,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847CMB,315?
BC847CMB,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847CMB,315 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 BC847CMB,315?
For technical support, including BC847CMB,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847CMB,315 requirements.
6.How does Aetrix verify that BC847CMB,315 is sourced from the original manufacturer or authorized distributors?
All BC847CMB,315 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 BC847CMB,315 meets industry standards.
7.What is the process for return or replacement of BC847CMB,315?
All BC847CMB,315 units undergo pre-shipment inspection (PSI). If there is an issue with BC847CMB,315, 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 BC847CMB,315 part is unused and in its original packaging.
Return procedure for BC847CMB,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847CMB,315 Tags
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