CNCHIPDEPOT Original Part
BC847B
BC847B NPN BJT transistor with 45V VCEO, 100mA collector current, hFE 200–450 and SOT-23 package.
Transistor PolarityNPN
Collector-Emitter Voltage (VCEO)45 V
Collector Current (IC)100 mA
DC Current Gain (hFE)200–450 @ IC = 2 mA, VCE = 5 V
Power Dissipation (PD)250 mW
PackageSOT-23
Product Overview
The BC847B is an NPN bipolar junction transistor designed for general-purpose switching and small-signal amplification. It features a 45V collector-emitter voltage rating, 100mA maximum collector current, and a defined DC current gain range of 200–450 at 2mA collector current. The B gain grade provides tighter gain control than the base BC847 version, making it useful in analog, interface, and low-current control circuits.
Packaged in a compact SOT-23 surface-mount package, the BC847B is suitable for signal amplification, buffering, discrete switching, level shifting, and other low-power PCB applications where predictable transistor gain and small size are important.
Specifications
Key electrical, package, and sourcing parameters for quick engineering review.
| Part Number | BC847B |
| Brand | CNCHIPDEPOT |
| Package | SOT-23 |
| Product Type | BJT |
| Transistor Polarity | NPN |
| Collector-Emitter Voltage (VCEO) | 45 V |
| Collector Current (IC) | 100 mA |
| DC Current Gain (hFE) | 200–450, 290 Typ @ IC = 2 mA, VCE = 5 V |
| Power Dissipation (PD) | 250 mW |
| Collector-Base Voltage (VCBO) | 50 V |
| Emitter-Base Voltage (VEBO) | 6 V |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.4 V Max @ IC = 100 mA, IB = 5 mA |
| Transition Frequency (fT) | 100 MHz Min @ IC = 10 mA, VCE = 5 V |
| Collector Cutoff Current (ICBO) | 15 nA Max @ VCB = 30 V |
| Junction Temperature (TJ) | 150°C Max |
| Mounting Type | Surface Mount |
| Pin Configuration | 1: Base, 2: Emitter, 3: Collector |
Cross Reference & Replacement Information
The following part numbers are commonly reviewed for replacement or compatibility matching. Always verify datasheet, package, pinout, and operating conditions before bulk purchase.
| Target Brand | Target MPN | Replace Type | Notes |
|---|---|---|---|
| NXP Semiconductors | BC847B | Direct Replacement | Same part number from original manufacturer. |
| STMicroelectronics | BC847B | Cross Reference | Verify electrical parameters and package compatibility. |
| ON Semiconductor | BC847B | Compatible Alternative | Check datasheet for exact specifications match. |
| Diodes Incorporated | BC847B | Possible Replacement | Confirm package type and lead configuration. |
Datasheet
Download the datasheet or contact us for additional technical information.
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Typical Applications
- General-purpose small-signal amplification
- Low-current switching circuits
- Analog signal buffering stages
- Discrete transistor interface circuits
- Voltage level-shifting circuits
- Compact surface-mount control circuits
Ordering & RFQ Information
- MOQ: Contact sales
- Lead Time: 3–7 working days for stock items
- Packaging: Reel / Tube / Tray depending on package
- Sample Availability: Available on request
- Mass Production Status: 50K+ pcs Stock / Mass Production
FAQ
Can this part replace my current model?
It may be suitable depending on your circuit requirements. Please verify datasheet, package, pinout, and test samples before bulk orders.
Can I request samples?
Yes. Please submit your RFQ with target quantity and application details.
Need this part or a compatible replacement?
Send us your target part number, BOM list, quantity, and technical requirements. CNCHIPDEPOT can help review replacement options and provide RFQ support.
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As a China electronic component factory , China Chip Depot supports component sourcing, production, testing and quality inspection for global B2B buyers. We also provide Cross Reference Alternative Parts matching services to help engineers and procurement teams identify suitable component alternatives.
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SMT Assembly Workshop
SMT production and assembly capabilities supporting electronic component and PCB-related manufacturing requirements.
Semiconductor Production
Controlled production environments supporting semiconductor and electronic component manufacturing processes.
Component Testing Equipment
Electrical testing and verification equipment used to support performance checks and product consistency.
Quality Inspection Lab
Quality inspection processes help verify component condition, specifications and production consistency before shipment.