CNCHIPDEPOT Original Part
S9018
S9018 NPN BJT transistor with 15V VCEO, 50mA collector current, 800MHz fT, 200mW power and SOT-23 package.
Transistor PolarityNPN
Collector-Emitter Voltage (VCEO)15 V
Collector Current (IC)50 mA
DC Current Gain (hFE)70 Min @ IC = 1 mA, VCE = 5 V
Power Dissipation (PD)200 mW
PackageSOT-23
Product Overview
The S9018 is an NPN bipolar junction transistor (BJT) designed for high-frequency small-signal amplification and low-current switching. It features a 15V collector-emitter voltage rating, 50mA maximum collector current, and an 800MHz transition frequency. Its high-frequency capability makes it more suitable for signal-processing applications than many general-purpose low-frequency switching transistors.
Packaged in a compact SOT-23 surface-mount package, the S9018 can be used in high-frequency amplifier stages, oscillator and buffer circuits, and low-current signal switching. Its 200mW power rating and small package make it suitable for space-constrained, low-power electronic designs.
Specifications
Key electrical, package, and sourcing parameters for quick engineering review.
| Part Number | S9018 |
| Brand | CNCHIPDEPOT |
| Package | SOT-23 |
| Product Type | BJT |
| Transistor Polarity | NPN |
| Collector-Emitter Voltage (VCEO) | 15 V |
| Collector Current (IC) | 50 mA |
| DC Current Gain (hFE) | 70 Min @ IC = 1 mA, VCE = 5 V |
| Power Dissipation (PD) | 200 mW |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 500 mV Max @ IC = 10 mA, IB = 1 mA |
| Transition Frequency (fT) | 800 MHz |
| Operating Temperature | -55°C to +150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3 / SC-59 / SOT-23-3 |
| Collector Cutoff Current (ICBO) | 0.05 µA Max |
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 |
|---|---|---|---|
| ON Semiconductor | 2N3904 | Cross Reference | Verify hFE range and power dissipation ratings. |
| Toshiba | 2SA1015 | Functional Equivalent | Check polarity and pin configuration for PNP version. |
| Rohm Semiconductor | 2SC1815 | Compatible Alternative | Confirm frequency characteristics and package type. |
| NXP Semiconductors | BC847B | Possible Replacement | Check electrical parameters and package compatibility. |
Datasheet
Download the datasheet or contact us for additional technical information.
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Typical Applications
- High-frequency small-signal amplification
- RF signal buffer stages
- Oscillator and signal processing circuits
- Low-current transistor switching
- High-frequency discrete amplifier stages
- Compact SMD communication 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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