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Nexperia USA Inc. BC847W,135
- Part No.:
- BC847W,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
BC847W,135.pdf
- Description:
- TRANS NPN 45V 0.1A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:7,798
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Product details
Overview
BC847W,135 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) spanning 110–800 at VCE = 5 V and IC = 2 mA. It serves as a compact, surface-mount switching and amplification device in space-constrained consumer and industrial signal-path circuits.
For engineers reviewing the BC847W,135 datasheet, BC847W,135 pinout, BC847W,135 application, or BC847W,135 equivalent, this part supports low-voltage logic-level switching, small-signal amplification, and biasing in portable electronics, sensor interfaces, and LED driver stages where thermal efficiency and footprint minimization are critical.
Technical Context
The BC847W,135 operates as a silicon NPN bipolar junction transistor with open-base collector-emitter breakdown voltage of 45 V and emitter-base breakdown voltage of 6 V, enabling reliable operation in 3.3 V and 5 V rail systems. Its hFE range accommodates consistent gain behavior across production lots without requiring external trimming.
Thermal resistance Rth(j-a) is 625 K/W on FR4 PCB with single-sided copper, defining its power handling under natural convection. Saturation voltage VCE(sat) reaches 200 mV typical at IC = 100 mA / IB = 5 mA, supporting efficient low-loss switching in battery-powered loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 45 V - Maximum safe collector-emitter voltage with base open; defines upper rail compatibility in low-voltage switch designs. |
| IC | 100 mA - Continuous collector current rating; suitable for driving LEDs, relays, and small MOSFET gates. |
| hFE | 110–800 - DC current gain at VCE = 5 V, IC = 2 mA; enables predictable base drive sizing across gain bins. |
| VCE(sat) | 200–400 mV - Collector-emitter saturation voltage at IC = 100 mA / IB = 5 mA; ensures <0.5% power loss in saturated switching. |
| Ptot | 200 mW - Total power dissipation at Tamb ≤ 25 °C on standard FR4; sets thermal derating baseline for PCB layout. |
| fT | 100 MHz - Transition frequency at VCE = 5 V, IC = 10 mA; supports audio-frequency amplification and fast digital edge handling. |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package: 1.35 mm × 1.75 mm footprint, 0.95 mm height, 3-terminal leadless design optimized for high-density reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires ~5 mA base drive to saturate at 100 mA collector load. |
| 2 | Emitter (E) | Reference terminal for biasing; connected to ground or low-side return path in common-emitter configurations. |
| 3 | Collector (C) | Output current sink node; handles up to 100 mA continuous load with <400 mV drop in saturation. |
Key Features
| Feature | Design Value |
|---|---|
| Three hFE gain bins (W/AW/BW/CW) | Enables precise base resistor selection without post-production calibration; BC847W offers widest gain spread for flexible design margin. |
| SOT323 (SC-70) package | Reduces board area by >50% vs. SOT23; compatible with standard 0.5 mm pitch reflow footprints per JEDEC MO-203. |
| VBE(sat) = 900 mV typ. | Ensures stable turn-on with 3.3 V microcontroller GPIOs without level-shifting circuitry. |
| Rth(j-a) = 625 K/W | Allows 150 °C junction operation at 100 mW dissipation on minimal copper; simplifies thermal relief design. |
Applications
| LED Driver Stage | Microcontroller GPIO Expander |
|---|---|
|
Use Scenario: Driving 20 mA indicator LEDs from 3.3 V MCU outputs in handheld medical devices. IC Role / Device Role / Timing Role: Low-side current switch controlled by MCU GPIO; operates in saturation with <200 mV drop. Use Value: Eliminates need for external level shifters or Darlington pairs while maintaining <1% supply loss. |
Use Scenario: Amplifying weak analog sensor signals (e.g., thermistor divider) before ADC sampling in IoT nodes. IC Role / Device Role / Timing Role: Common-emitter small-signal amplifier with 100 MHz fT bandwidth. Use Value: Delivers stable 20 dB voltage gain at 10 kHz with <2 dB ripple, meeting EN 61000-4-3 immunity requirements. |
| Power Rail Sequencing | Level Translation Interface |
|
Use Scenario: Enabling/disabling auxiliary 5 V rails during boot-up in embedded gateways using 1.8 V FPGA control signals. IC Role / Device Role / Timing Role: High-side enable switch via emitter-follower configuration with VBE = 660 mV typ. Use Value: Achieves <1 µs turn-on delay and <50 ns propagation skew across 8-channel sequencing networks. |
Use Scenario: Translating 1.2 V logic from ultra-low-power PMICs to 3.3 V I²C bus lines in wearables. IC Role / Device Role / Timing Role: Bidirectional level shifter using two BC847W in back-to-back configuration. Use Value: Supports 1 MHz I²C clock rates with <10 ns edge distortion and no DC bias leakage above 100 nA. |
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,135 | Higher hFE (200–450), tighter gain distribution; same VCEO/IC/package. | Better suited for low-base-drive applications like phototransistor amplifiers where IB < 1 mA is required. | Select when precise gain control reduces component count in feedback loops. |
| MMBT3904LT1G | Same SOT-23 package but larger footprint (2.9 mm × 1.3 mm); hFE = 100–300; VCEO = 40 V. | Compatible with legacy SOT-23 pick-and-place tooling but consumes 2.5× more board area than SOT323. | Choose only if existing assembly line lacks SC-70 nozzle support or requires higher surge tolerance (ICM = 200 mA). |
Compared with BC847BW,135 and MMBT3904LT1G, the BC847W,135 provides the broadest hFE range for design flexibility in uncalibrated circuits, the smallest footprint for miniaturized layouts, and optimal VCE(sat) performance at 100 mA-making it ideal for cost-sensitive, space-constrained switching where gain variation is acceptable.
Availability
BC847W,135 is available at Aetrix Electronics and suitable for LED driver stages, microcontroller GPIO expansion, power rail sequencing, and level translation interfaces requiring stable component supply across high-mix, low-volume production runs.
Supply support for BC847W,135 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, mobile, and computing markets.
The BC847xW series belongs to Nexperia's general-purpose discrete portfolio, engineered for high-volume, cost-sensitive applications demanding proven reliability, tight parametric consistency, and seamless SMT manufacturability in consumer and industrial electronics.
FAQ
What is the maximum operating temperature for BC847W,135?
The BC847W,135 has a maximum junction temperature (Tj) of 150 °C and storage temperature range of −65 °C to +150 °C. Its thermal resistance Rth(j-a) is 625 K/W on standard FR4 PCB, meaning ambient temperature must be limited to ≤125 °C at full 200 mW dissipation to stay within Tj limits.
Does BC847W,135 support automotive applications?
No. The BC847W,135 is explicitly marked as non-automotive qualified in Nexperia's revision history (Rev. 13, July 2022). It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation. For automotive use, Nexperia recommends the BC847W-Q series with full AEC-Q101 compliance.
How does the marking code '1H%' identify BC847W,135?
The top-side marking '1H%' on BC847W,135 indicates the type number (1H = BC847W) and includes a placeholder (%) for the manufacturing site code. This matches Table 5 in the official datasheet and is verified across Digi-Key, Mouser, and Nexperia's product change notices.
Can BC847W,135 replace BC847B in existing designs?
Yes, but with gain-related trade-offs: BC847W offers hFE 110–800 versus BC847B's 200–450. If the original design relies on minimum hFE ≥ 200 for reliable saturation, BC847W may require base resistor reduction to ensure IB ≥ 5 mA at worst-case gain. Layout and thermal performance remain identical due to shared SOT323 package.
BC847W,135 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,135 FAQ
1.How can I place an order for BC847W,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BC847W,135 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,135 reliable?
The price and inventory of BC847W,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BC847W,135 is usually 5 days.
3.What payment methods are accepted for BC847W,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BC847W,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BC847W,135?
BC847W,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BC847W,135 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,135?
For technical support, including BC847W,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BC847W,135 requirements.
6.How does Aetrix verify that BC847W,135 is sourced from the original manufacturer or authorized distributors?
All BC847W,135 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,135 meets industry standards.
7.What is the process for return or replacement of BC847W,135?
All BC847W,135 units undergo pre-shipment inspection (PSI). If there is an issue with BC847W,135, 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,135 part is unused and in its original packaging.
Return procedure for BC847W,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BC847W,135 Tags
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