Overview
The Motorola MMBT5088T1 is a general-purpose NPN silicon transistor designed for low-noise amplification across a wide range of industrial and commercial applications. This surface-mount device combines the proven Motorola low-noise specification with the compact SOT-23 form factor, making it suitable for modern circuit board layouts while maintaining backward compatibility with through-hole 2N5088 designs.
Key Features
- Low-noise NPN silicon transistor optimized for audio and RF amplification
- Compact SOT-23 (TO-236) surface mount package
- 50 mA maximum collector current; 30V collector-emitter voltage rating
- 300 mW maximum power dissipation
- High current gain (hFE ≥ 300) for efficient signal amplification
- Wide operating temperature range: -55°C to +150°C
Technical Specifications
The MMBT5088T1 delivers reliable performance across standard amplifier and switching applications. Its electrical characteristics include a collector-base voltage rating of 35V, emitter-base voltage of 4.5V, and low collector-emitter saturation voltage for efficient switching. Maximum operating frequency of 20 MHz and transition frequency up to 50 MHz support both analog amplification and moderate-speed digital circuits.
Typical Applications
- Audio preamplifier and low-noise signal conditioning circuits
- RF and VHF amplifier stages
- Instrumentation and measurement signal chains
- Logic-level switching and driver circuits
- Precision oscillator and timing circuits
- Consumer electronics amplification stages
Compatibility & Replacements
Compatible With
- Standard breadboard and PCB prototyping platforms
- Analog and mixed-signal circuit designs requiring NPN amplification
- Audio frequency and RF circuit topologies
- Low-power DC switching and control circuits
Replaces / Drop-In Replacement For
- 2N5088 (through-hole to-92 equivalent)
- MMBT5088LT1, MMBT5088LT1G (alternative surface-mount versions)
Works With
- Standard silicon transistor circuit design methodologies
- PSpice and LTspice transistor modeling
- RF and analog CAD design tools supporting BJT models
- PCB layout software with SOT-23 land pattern libraries
