圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | KEC Semicon |
| Package | SOT-23 |
| Pd - Power Dissipation | 350mW |
| type | NPN |
| Current - Collector(Ic) | 200mA |
| Collector - Emitter Voltage VCEO | 40V |
| Transition frequency(fT) | 300MHz |
| DC Current Gain | 100@10mA,1V |
| Vce Saturation(VCE(sat)) | 300mV |
概述
Description
The 2N3904S-RTK/PS is a variant of the popular NPN bipolar junction transistor (BJT) 2N3904, optimized for surface-mount (SMD) applications. Key features include:
- Package: SOT-23 (small, space-efficient).
- Applications: Switching and amplification in low-power circuits (e.g., signal processing, drivers).
- Ratings:
- VCEO: 40V (max collector-emitter voltage).
- IC: 200mA (max collector current).
- Ptot: 350mW (max power dissipation).
- Gain (hFE): 100–300 (typical at 10mA).
The "RTK/PS" suffix may denote tape-and-reel packaging (RTK) or specific manufacturer branding. It’s compatible with standard 2N3904 pinouts (Emitter-Base-Collector in SOT-23).
Use cases: Consumer electronics, embedded systems, and portable devices requiring compact, reliable switching. Always check the datasheet for exact specifications.
- Package: SOT-23 (small, space-efficient).
- Applications: Switching and amplification in low-power circuits (e.g., signal processing, drivers).
- Ratings:
- VCEO: 40V (max collector-emitter voltage).
- IC: 200mA (max collector current).
- Ptot: 350mW (max power dissipation).
- Gain (hFE): 100–300 (typical at 10mA).
The "RTK/PS" suffix may denote tape-and-reel packaging (RTK) or specific manufacturer branding. It’s compatible with standard 2N3904 pinouts (Emitter-Base-Collector in SOT-23).
Use cases: Consumer electronics, embedded systems, and portable devices requiring compact, reliable switching. Always check the datasheet for exact specifications.
Equivalent
The 2N3904S-RTK/PS is a general-purpose NPN transistor. Equivalent alternatives include:
- 2N3904 (standard version)
- BC547 (similar specs, widely available)
- 2N2222 (higher current handling)
- PN2222 (plastic TO-92 version of 2N2222)
- MMBT3904 (SMD equivalent)
Check datasheets for exact parameter matching in your application.
- 2N3904 (standard version)
- BC547 (similar specs, widely available)
- 2N2222 (higher current handling)
- PN2222 (plastic TO-92 version of 2N2222)
- MMBT3904 (SMD equivalent)
Check datasheets for exact parameter matching in your application.
Features
The 2N3904S-RTK/PS is an NPN bipolar junction transistor (BJT) with the following key features:
- Type: NPN general-purpose transistor
- Package: SOT-23 (small surface-mount)
- Max Collector Current (Ic): 200mA
- Max Collector-Emitter Voltage (Vce): 40V
- Max Power Dissipation (Pd): 350mW
- DC Current Gain (hFE): 100–300 (typical at 10mA)
- Transition Frequency (fT): 300MHz (typical)
- Low Noise: Suitable for amplification
- Applications: Switching, amplification, signal processing
Compact and efficient, it’s ideal for low-power circuits.
- Type: NPN general-purpose transistor
- Package: SOT-23 (small surface-mount)
- Max Collector Current (Ic): 200mA
- Max Collector-Emitter Voltage (Vce): 40V
- Max Power Dissipation (Pd): 350mW
- DC Current Gain (hFE): 100–300 (typical at 10mA)
- Transition Frequency (fT): 300MHz (typical)
- Low Noise: Suitable for amplification
- Applications: Switching, amplification, signal processing
Compact and efficient, it’s ideal for low-power circuits.
Application
The 2N3904S-RTK/PS is a general-purpose NPN transistor commonly used in:
- Switching circuits (relays, LEDs, small loads)
- Amplification (audio, RF, signal conditioning)
- Digital logic (inverter, buffer circuits)
- Oscillators & timers (low-frequency applications)
- Consumer electronics (toys, gadgets, power management)
Its low cost, high gain, and fast switching make it suitable for hobbyist projects and industrial designs.
- Switching circuits (relays, LEDs, small loads)
- Amplification (audio, RF, signal conditioning)
- Digital logic (inverter, buffer circuits)
- Oscillators & timers (low-frequency applications)
- Consumer electronics (toys, gadgets, power management)
Its low cost, high gain, and fast switching make it suitable for hobbyist projects and industrial designs.
Package
The 2N3904S-RTK/PS is a NPN transistor typically available in a SOT-23-3 (TO-236AB) surface-mount package. This compact package is suitable for high-density PCB designs and offers reliable performance for general-purpose amplification and switching applications. The "RTK/PS" suffix may indicate specific tape-and-reel packaging for automated assembly.
