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Nexperia USA Inc. BC847AM,315
- Part No.:
- BC847AM,315
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-101, SOT-883
- Datasheet:
-
BC847AM,315.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-883
- Quantity:
- Payment:
- Shipping:
Inventory:25,821
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Product details
Overview
BC847AM,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 110–220 at IC = 2 mA, VCE = 5 V. It serves as a low-power switching and amplification device in space-constrained automotive and industrial signal-path circuits.
For engineers reviewing the BC847AM,315 datasheet, BC847AM,315 pinout, BC847AM,315 application, or BC847AM,315 equivalent, this part supports design validation for compact bias networks, level-shifting interfaces, and discrete logic-level switching where thermal resistance (Rth(j-a) = 500 K/W) and junction temperature limits (Tj ≤ 150 °C) are critical.
Technical Context
This transistor operates as a silicon-based NPN bipolar junction device with open-base collector-emitter breakdown voltage of 45 V and emitter-base breakdown voltage of 6 V. Its gain group 'AM' delivers mid-range hFE (110–220), optimized for stable small-signal amplification and saturated switching under 100 mA DC load.
Thermal performance is defined for mounting on FR4 PCB with standard 60 μm copper footprint, yielding Rth(j-a) = 500 K/W in free air. Saturation behavior is characterized at IC/IB = 20, with VCE(sat) ≤ 400 mV at IC = 100 mA and IB = 5 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum allowable collector-emitter voltage before breakdown in open-base configuration; sets upper rail limit for low-voltage switching stages. |
| IC | 100 mA - Continuous DC collector current rating; defines maximum steady-state load drive capability without derating. |
| hFE | 110–220 - DC current gain range at VCE = 5 V, IC = 2 mA; determines base drive requirements for predictable saturation. |
| VCE(sat) | ≤400 mV - Collector-emitter saturation voltage at IC = 100 mA, IB = 5 mA; directly impacts power loss and voltage headroom in switch mode. |
| Ptot | 250 mW - Total power dissipation at Tamb ≤ 25 °C on standard PCB; constrains usable power envelope in thermally unmanaged layouts. |
| Rth(j-a) | 500 K/W - Junction-to-ambient thermal resistance in free air; informs temperature rise (ΔT = P × Rth) under given loading. |
Pinout & Package
SOT883 (SC-101) is a leadless ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm, with three solderable lands and transparent top-view marking ('D4' for BC847AM). Designed for high-density PCB assembly and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal for forward-biasing the BE junction; requires current-limited drive to achieve target IC per hFE. |
| 2 | Emitter (E) | Current return path; internally connected to substrate in SOT883; must be routed to lowest impedance ground reference. |
| 3 | Collector (C) | Main output current path; connects to load or pull-up; electrically isolated from package body in this SMD construction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics requiring reliability under thermal cycling and vibration. |
| Three gain groups (AM/BM/CM) | Enables precise hFE selection: AM (110–220) balances gain stability and noise for general-purpose use. |
| Ultra-small SOT883 footprint | 1.0 × 0.6 mm area saves >60% board space vs. SOT23; enables routing under fine-pitch ICs and dense sensor subsystems. |
| Low VBE(sat) | ≤900 mV at IC = 100 mA, IB = 5 mA - reduces base drive power and improves efficiency in battery-powered switches. |
Applications
| Automotive Door Module Switching | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Driving LED status indicators and small solenoid loads in door control units with limited PCB real estate. IC Role / Device Role / Timing Role: Discrete NPN switch controlling 20–80 mA loads with TTL-compatible base input. Use Value: AEC-Q101 qualification ensures operation across -40 °C to +125 °C ambient, while SOT883 size allows placement near connector interfaces. |
Use Scenario: Amplifying low-level analog outputs from RTD or bridge sensors before ADC input. IC Role / Device Role / Timing Role: Small-signal common-emitter amplifier with fixed-gain bias network. Use Value: Stable hFE (110–220) and low noise figure (2–10 dB) support accurate 12-bit measurement resolution at 200 μA collector bias. |
| USB-C Port Power Path Control | Smart Home Motion Detector Front-End |
|
Use Scenario: Enabling/disabling 5 V power rails to USB peripheral ports based on enumeration status. IC Role / Device Role / Timing Role: Low-side switch in series with VBUS path, controlled by microcontroller GPIO. Use Value: VCE(sat) ≤ 400 mV at 100 mA minimizes voltage drop and self-heating during sustained port power delivery. |
Use Scenario: Buffering and level-shifting PIR sensor output to match microcontroller input thresholds. IC Role / Device Role / Timing Role: Emitter-follower buffer providing high input impedance and rail-to-rail swing. Use Value: fT ≥ 100 MHz ensures faithful reproduction of transient motion pulses up to 10 kHz without phase lag. |
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 Rth(j-a) (380 K/W); same hFE range and ratings. | Less suitable for ultra-dense layouts but easier to hand-solder and inspect; preferred for prototyping and low-volume industrial controls. | Select when manual assembly or optical inspection is required, and board space permits larger footprint. |
| MMBT3904LT1G | SOT23 package; hFE = 100–300 (wider spread); VCEO = 40 V; not AEC-Q101 qualified. | Lacks automotive qualification; acceptable for commercial-grade consumer devices but not for under-hood or safety-critical functions. | Choose only for cost-sensitive non-automotive designs where 40 V rating and wider hFE tolerance are acceptable. |
Compared with BC847AM,315, BC847BW,115 trades miniaturization for assembly flexibility, while MMBT3904LT1G sacrifices qualification and voltage margin for broader availability-making BC847AM,315 optimal for production automotive and space-constrained industrial designs requiring guaranteed gain and stress qualification.
Availability
BC847AM,315 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and USB power management systems requiring stable component supply, consistent gain binning, and long-term lifecycle assurance.
Supply support for BC847AM,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 essential semiconductors, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.
The BC847XM series targets cost-effective, space-efficient general-purpose switching and amplification in automotive and industrial applications, emphasizing AEC-Q101 compliance and tight gain binning in miniature packages.
FAQ
What is the maximum operating junction temperature for BC847AM,315?
The absolute maximum junction temperature (Tj) is 150 °C, as specified in the limiting values table. Operation above this threshold risks permanent degradation of hFE and increased leakage currents. Derating is required above Tamb = 25 °C per the thermal resistance value (Rth(j-a) = 500 K/W) and actual power dissipation.
Is BC847AM,315 suitable for linear amplification applications?
Yes-its hFE stability (110–220 at IC = 2 mA), low noise figure (2–10 dB), and predictable VBE behavior (660 mV typical at IC = 10 mA) support Class-A small-signal amplification. However, it is not optimized for RF or high-fidelity audio; use is limited to bandwidths ≤10 MHz and low-distortion preamp stages.
How does the SOT883 package affect PCB layout and thermal management?
The SOT883's 1.0 × 0.6 mm footprint requires precise stencil design and reflow profiling due to minimal solder land area. Thermal management relies entirely on PCB copper; the 500 K/W Rth(j-a) assumes a standard 60 μm copper strip. Adding thermal vias under the collector pad or using 2-oz copper significantly improves heat extraction in sustained-load applications.
What marking code identifies BC847AM,315 on the device body?
The top-side laser marking is 'D4', as confirmed in Table 5 of the datasheet. This code uniquely identifies the BC847AM gain group within the BC847XM series and is visible under 20× magnification on the transparent top view of the SOT883 package.
BC847AM,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:
- 110 @ 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
BC847AM,315 FAQ
1.How can I place an order for BC847AM,315 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847AM,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 BC847AM,315 reliable?
The price and inventory of BC847AM,315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847AM,315 is usually 5 days.
3.What payment methods are accepted for BC847AM,315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847AM,315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847AM,315?
BC847AM,315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847AM,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 BC847AM,315?
For technical support, including BC847AM,315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847AM,315 requirements.
6.How does Aetrix verify that BC847AM,315 is sourced from the original manufacturer or authorized distributors?
All BC847AM,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 BC847AM,315 meets industry standards.
7.What is the process for return or replacement of BC847AM,315?
All BC847AM,315 units undergo pre-shipment inspection (PSI). If there is an issue with BC847AM,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 BC847AM,315 part is unused and in its original packaging.
Return procedure for BC847AM,315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847AM,315 Tags
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Diodes Incorporated
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Micro Commercial Co
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BC847B,215
Nexperia USA Inc.
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MMBT2222A-TP
Micro Commercial Co
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