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Nexperia USA Inc. BC847W,115
- Part No.:
- BC847W,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847W,115.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:38,201
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Product details
Overview
BC847W,115 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 110–800 at VCE = 5 V and IC = 2 mA. It serves as a low-power switching and amplification device in compact consumer, industrial, and communication circuitry.
For engineers reviewing the BC847W,115 datasheet, BC847W,115 pinout, BC847W,115 application, or BC847W,115 equivalent, key selection criteria include its SOT323 footprint compatibility, guaranteed hFE range, VCEO/IC ratings, thermal resistance (Rth(j-a) = 625 K/W), and marking code "1H%" for traceability.
Technical Context
This transistor operates as a discrete bipolar junction device with base-controlled current amplification. Its design supports linear amplification and saturated switching modes, with VBE(sat) ≤ 900 mV at IC = 100 mA / IB = 5 mA and VCE(sat) ≤ 400 mV under identical conditions.
It features a maximum junction temperature of 150 °C, absolute maximum ratings including VCBO = 50 V and VEBO = 6 V, and thermal performance validated on FR4 PCB with single-sided copper and standard footprint per IEC 60134.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum collector-emitter voltage before breakdown in open-base configuration; defines safe operating voltage headroom. |
| IC | 100 mA - Continuous DC collector current rating; sets upper limit for steady-state load drive capability. |
| hFE | 110–800 - DC current gain at VCE = 5 V, IC = 2 mA; determines base drive requirements for target collector current. |
| Ptot | 200 mW - Total power dissipation at Tamb ≤ 25 °C on FR4 PCB; constrains thermal design and duty-cycle limits. |
| Rth(j-a) | 625 K/W - Junction-to-ambient thermal resistance in free air; informs heatsinking needs for sustained operation. |
| VCE(sat) | ≤ 400 mV - Collector-emitter saturation voltage at IC = 100 mA, IB = 5 mA; impacts conduction loss in switching applications. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with 3 leads; dimensions: 2.2 mm × 1.35 mm × 0.95 mm (L × W × H); standardized footprint per Nexperia's reflow soldering guidelines (sot323_fr).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires precise current sourcing/sinking to bias transistor into active or saturation region. |
| 2 | Emitter (E) | Current return path; typically grounded or connected to low-impedance reference in common-emitter configurations. |
| 3 | Collector (C) | Output current terminal; connects to load or next stage; must respect VCEO and IC derating rules. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE gain selections | Enables optimized base drive design across BC847AW/BW/CW variants without changing layout or footprint. |
| SOT323 (SC-70) package | 0.95 mm profile and 2.2 mm × 1.35 mm footprint support high-density PCB layouts in space-constrained devices. |
| VEBO = 6 V rating | Allows safe operation with up to 6 V reverse bias on base-emitter junction, supporting robust input protection schemes. |
| fT = 100 MHz | Supports small-signal amplification up to ~100 MHz, suitable for RF front-end biasing and audio preamplifier stages. |
Applications
| LED Driver Circuit | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V microcontroller outputs. IC Role / Device Role / Timing Role: NPN switch configured in common-emitter mode, turning LED on/off via base current control. Use Value: Low VCE(sat) (≤ 400 mV) minimizes voltage drop across transistor, preserving forward voltage margin for LED string. |
Use Scenario: Level-shifting and current boosting for legacy 5 V peripherals interfaced with 3.3 V MCUs. IC Role / Device Role / Timing Role: Active-low buffer amplifier translating logic states while sourcing/sinking >10 mA per channel. Use Value: Guaranteed hFE ≥ 110 ensures reliable saturation with ≤ 100 µA base drive, reducing MCU GPIO loading. |
| Low-Power Sensor Signal Conditioning | Power Supply Enable Switch |
|
Use Scenario: Amplifying weak analog signals from thermistors or photodiodes before ADC sampling. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with emitter degeneration for stable gain and linearity. Use Value: fT = 100 MHz and low noise figure (2–10 dB) preserve signal integrity in sub-1 MHz sensor bandwidths. |
Use Scenario: Enabling/disabling auxiliary 5 V rail in battery-powered IoT nodes based on system sleep/wake commands. IC Role / Device Role / Timing Role: High-side or low-side enable switch controlling PMOS/NMOS gate drive or LDO EN pin. Use Value: 150 °C max junction temperature and 200 mW Ptot allow intermittent 100 mA switching without thermal shutdown in sealed enclosures. |
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 |
|---|---|---|---|
| BC847B,115 | Same SOT323 package but hFE = 200–450 (tighter mid-range); higher minimum gain reduces base drive variability. | Better suited for precision current mirror or feedback loop applications requiring consistent gain across temperature. | Select when tighter hFE tolerance improves closed-loop stability over BC847W's wider 110–800 spread. |
| MMBT3904LT1G | Same VCEO/IC ratings but hFE = 100–300; lower fT (300 MHz typical) and higher VCE(sat) (300 mV min). | Preferred where cost sensitivity outweighs need for ultra-low saturation voltage or wide gain range. | Choose for cost-driven consumer designs where 300 mV VCE(sat) is acceptable and gain consistency >800 not required. |
Compared with BC847B,115 and MMBT3904LT1G, BC847W,115 offers the widest hFE range for flexible base drive design, lowest guaranteed VCE(sat), and best thermal resistance among SOT323 NPN transistors-making it optimal for compact, variable-load switching where gain tolerance is secondary to footprint and efficiency.
Availability
BC847W,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, low-power sensor signal conditioning, and power supply enable switching requiring stable component supply and SOT323 footprint compatibility.
Supply support for BC847W,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 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 general-purpose switching and amplification in consumer electronics, industrial controls, and communication interfaces-emphasizing SOT323 miniaturization and gain-bin flexibility.
FAQ
What is the marking code for BC847W,115?
The top-side marking for BC847W,115 is "1H%", where "%" is a placeholder for the manufacturing site code. This marking is laser-etched on the SOT323 package body and aligns with JEITA and EIAJ standards for SC-70 devices.
Can BC847W,115 replace BC847C,115 in existing designs?
No-BC847C,115 has hFE = 420–800 (typical 520), while BC847W,115 spans 110–800. Substituting may cause insufficient base drive in high-gain-critical circuits or excessive base current in low-gain scenarios; verify hFE-dependent biasing before replacement.
What is the maximum allowable continuous collector current at 85 °C ambient?
At Tamb = 85 °C, derating applies: Ptot drops linearly from 200 mW at 25 °C to 0 mW at 150 °C. At 85 °C, Ptot ≈ 130 mW. With VCE(sat) ≤ 400 mV, max continuous IC ≈ 325 mA-but absolute maximum IC remains 100 mA per limiting values; thus, 100 mA is the hard ceiling regardless of temperature.
Does BC847W,115 meet RoHS and REACH compliance?
Yes-BC847W,115 is manufactured by Nexperia to comply with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full material declarations and test reports are available via Nexperia's product change notifications and compliance portal.
BC847W,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BC847xW
- Package/Case:
- SC-70, SOT-323
- 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:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BC847W,115 FAQ
1.How can I place an order for BC847W,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847W,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 BC847W,115 reliable?
The price and inventory of BC847W,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847W,115 is usually 5 days.
3.What payment methods are accepted for BC847W,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847W,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847W,115?
BC847W,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847W,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 BC847W,115?
For technical support, including BC847W,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847W,115 requirements.
6.How does Aetrix verify that BC847W,115 is sourced from the original manufacturer or authorized distributors?
All BC847W,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 BC847W,115 meets industry standards.
7.What is the process for return or replacement of BC847W,115?
All BC847W,115 units undergo pre-shipment inspection (PSI). If there is an issue with BC847W,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 BC847W,115 part is unused and in its original packaging.
Return procedure for BC847W,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847W,115 Tags
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MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
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MMBT3906-7-F
Diodes Incorporated
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
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BC846BLT1G
onsemi
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BC847B,215
Nexperia USA Inc.
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SMMBT3904LT1G
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MMBTA06LT1G
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MMBT2222ALT1G
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