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Nexperia USA Inc. BC847BM,315
- Part No.:
- BC847BM,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
BC847BM,315.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-883
- Quantity:
- Payment:
- Shipping:
Inventory:9,575
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Product details
Overview
BC847BM,315 from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in ultra-small SOT883 (SC-101) package, rated for 45 V VCEO, 100 mA IC, and DC current gain (hFE) of 200–450 at VCE = 5 V, IC = 2 mA. It serves as a low-power switching and linear amplification device in space-constrained automotive and industrial PCBs.
For engineers reviewing the BC847BM,315 datasheet, BC847BM,315 pinout, BC847BM,315 application, or BC847BM,315 equivalent, this part supports precision biasing, signal-level switching, and load control where thermal resistance (Rth(j-a) = 500 K/W), low VCE(sat) (≤400 mV @ IC = 100 mA, IB = 5 mA), and stable hFE across temperature are critical.
Technical Context
This transistor operates in active, saturation, and cutoff regions with verified breakdown voltages: V(BR)CBO = 50 V, V(BR)CES = 45 V, and V(BR)EBO = 6 V. Its hFE exhibits minimal drift over −55 °C to +150 °C, maintaining ≥200 at IC = 2 mA across that range.
Thermal performance is defined for standard FR4 PCB mounting (60 μm copper strip), delivering Rth(j-a) = 500 K/W in free air. Saturation behavior is characterized at two drive conditions: IC/IB = 20 yields VCE(sat) ≤ 400 mV, while IC/IB = 10 yields VBE(sat) ≤ 900 mV - both critical for low-loss digital switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit in switching circuits. |
| IC | 100 mA continuous - Absolute maximum DC collector current; usable up to 100 mA with derating above 25 °C ambient. |
| hFE | 200–450 @ VCE = 5 V, IC = 2 mA - High-gain bin enables low-base-drive designs in amplifiers and logic interfaces. |
| VCE(sat) | ≤400 mV @ IC = 100 mA, IB = 5 mA - Ensures <0.4 V voltage drop in saturated switch mode, minimizing power loss. |
| Ptot | 250 mW @ Tamb ≤ 25 °C - Total dissipation limit on standard footprint; requires thermal derating above 25 °C. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance on FR4 PCB; determines temperature rise per watt dissipated. |
Pinout & Package
SOT883 (SC-101) is a leadless, ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm with three solder lands. It features a transparent top view and is optimized for high-density automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; accepts low-current input to modulate collector current; requires series resistor for current limiting in digital drive. |
| 2 | Emitter (E) | Reference terminal; typically tied to ground or common return path; forms current return loop with collector. |
| 3 | Collector (C) | Output terminal; carries switched or amplified load current; connected to supply rail or load in common-emitter configuration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics under stress test conditions. |
| Three hFE bins (AM/BM/CM) | Enables precise gain matching across production lots - BM bin provides mid-range 200–450 hFE for balanced drive and stability. |
| Ultra-small SOT883 footprint | 1.0 × 0.6 mm area saves >60% board space vs. SOT23; compatible with fine-pitch reflow processes and 0201-class placement. |
| Low VBE(sat) | ≤900 mV @ IC = 100 mA, IB = 5 mA - Reduces base drive power and improves efficiency in high-duty-cycle switching. |
Applications
| Automotive Door Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Driving LED status indicators and small solenoids in door latch assemblies. IC Role / Device Role / Timing Role: NPN switch controlling 20–50 mA loads from microcontroller GPIO pins. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle life; low VCE(sat) minimizes heat generation in sealed enclosures. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistor, potentiometer) into ADC inputs. IC Role / Device Role / Timing Role: Emitter-follower amplifier providing unity-gain, low-output-impedance signal conditioning. Use Value: Stable hFE across −40 °C to +125 °C maintains consistent gain; low noise figure (2–10 dB) preserves signal integrity. |
| Consumer Wearable Power Control | Medical Diagnostic Instrument |
|
Use Scenario: Enabling/disabling low-power subsystems (e.g., Bluetooth radio, display backlight) in smart bands. IC Role / Device Role / Timing Role: Low-quiescent-load high-side or low-side switch controlled by PMIC or MCU. Use Value: Ultra-small SOT883 footprint allows integration in sub-100 mm² PCBs; 100 mA rating supports typical wearable peripheral loads. |
Use Scenario: Isolating and amplifying weak bio-signal paths (e.g., ECG front-end biasing, photodiode transimpedance feedback). IC Role / Device Role / Timing Role: Precision DC-coupled amplifier stage with matched hFE and low leakage (ICBO ≤ 15 nA @ 30 V). Use Value: Low ICBO and IEBO ensure minimal offset drift; tight hFE binning (BM) reduces calibration burden in production test. |
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 mm); higher Ptot = 300 mW; hFE 200–450 same bin. | Larger footprint but better thermal performance; suitable where board space permits and >250 mW dissipation needed. | Select when thermal margin >50 mW is required and SOT323 is acceptable in layout. |
| MMBT3904LT1G | SOT23 package; hFE 100–300 @ IC = 10 mA; VCEO = 40 V; not AEC-Q101 qualified. | Lower voltage rating and no automotive qualification; broader hFE spread increases design uncertainty. | Use only in non-automotive consumer or industrial applications where qualification is not mandated. |
Compared with BC847BW,115, BC847BM,315 trades thermal headroom for 60% smaller area; versus MMBT3904LT1G, it delivers guaranteed automotive reliability and tighter hFE control - critical for calibrated analog and safety-relevant switching.
Availability
BC847BM,315 is available at Aetrix Electronics and suitable for automotive door modules, industrial sensor interfaces, consumer wearable power control, and medical diagnostic instruments requiring stable component supply and long-term manufacturability.
Supply support for BC847BM,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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The BC847XM series targets cost-sensitive, space-constrained applications requiring robust general-purpose switching and amplification - especially in automotive body electronics and industrial edge nodes.
FAQ
Is BC847BM,315 suitable for automotive applications?
Yes - it is fully AEC-Q101 qualified per the official Nexperia product data sheet Rev. 13 (July 2022). This includes stress testing for temperature cycling, humidity bias, and high-temperature operating life, making it approved for use in engine control units, lighting modules, and body electronics.
What is the maximum allowable junction temperature for continuous operation?
The absolute maximum junction temperature (Tj) is 150 °C. For continuous operation at full 100 mA collector current, ambient temperature must be limited to ≤25 °C unless board-level thermal design (e.g., copper pour, airflow) reduces effective Rth(j-a) below 500 K/W.
How does the SOT883 package affect soldering and rework?
SOT883 uses a leadless, bottom-terminal structure with three solder lands. Reflow requires precise stencil aperture (0.3 × 0.7 mm per land) and peak temperature control (260 °C max, per JEDEC J-STD-020). Rework demands hot-air tools with fine nozzles and thermal profiling to avoid delamination or pad lifting.
Can BC847BM,315 replace BC847B in legacy SOT23 designs?
No - SOT883 is not pin-compatible with SOT23. Pin 1 (Base) and Pin 3 (Collector) positions differ, and the SOT883 footprint is ~70% smaller. Direct replacement requires PCB redesign, stencil update, and reflow profile validation; electrical parameters are compatible but mechanical integration is not drop-in.
BC847BM,315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-101, SOT-883
- 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:
- 400mV @ 5mA, 100mA
- Current - Collector Cutoff (Max):
- 15nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 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:
- SOT-883
BC847BM,315 FAQ
1.How can I place an order for BC847BM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847BM,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 BC847BM,315 reliable?
The price and inventory of BC847BM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847BM,315 is usually 5 days.
3.What payment methods are accepted for BC847BM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847BM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847BM,315?
BC847BM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847BM,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 BC847BM,315?
For technical support, including BC847BM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847BM,315 requirements.
6.How does Aetrix verify that BC847BM,315 is sourced from the original manufacturer or authorized distributors?
All BC847BM,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 BC847BM,315 meets industry standards.
7.What is the process for return or replacement of BC847BM,315?
All BC847BM,315 units undergo pre-shipment inspection (PSI). If there is an issue with BC847BM,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 BC847BM,315 part is unused and in its original packaging.
Return procedure for BC847BM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847BM,315 Tags
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