Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| TransistorType | PNP |
| Voltage-CollectorEmitterBreakdown(Max) | 20V |
| Frequency-Transition | 600MHz |
| Power-Max | 225mW |
| DCCurrentGain(hFE)(Min)@IcVce | 60 @ 5mA, 10V |
| Current-Collector(Ic)(Max) | 50mA |
| OperatingTemperature | -55°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Overview
Equivalent
The MMBTH81 is a general-purpose NPN RF transistor. Equivalent or similar products include:
- 2SC3356 (Renesas)
- BFG540 (NXP)
- BFR93A (Infineon)
- MPSH10 (ON Semiconductor)
These alternatives offer comparable performance in RF amplification and switching applications. Always verify pinout and specifications for compatibility.
- 2SC3356 (Renesas)
- BFG540 (NXP)
- BFR93A (Infineon)
- MPSH10 (ON Semiconductor)
These alternatives offer comparable performance in RF amplification and switching applications. Always verify pinout and specifications for compatibility.
Pinout
The MMBTH81 is a PNP bipolar junction transistor (BJT) in a SOT-23 surface-mount package.
- Pin count: 3 (Emitter, Base, Collector).
- Function: Designed for high-frequency amplification and switching applications, with a typical transition frequency (fₜ) of 600 MHz and a collector current (I꜀) of -50 mA.
Key features:
- Low noise, suitable for RF and small-signal circuits.
- Voltage rating: V꜀ʙᴏ = -40V, V꜀ᴇᴏ = -15V.
Common uses:
- RF amplifiers, oscillators, and signal processing circuits.
- Pin count: 3 (Emitter, Base, Collector).
- Function: Designed for high-frequency amplification and switching applications, with a typical transition frequency (fₜ) of 600 MHz and a collector current (I꜀) of -50 mA.
Key features:
- Low noise, suitable for RF and small-signal circuits.
- Voltage rating: V꜀ʙᴏ = -40V, V꜀ᴇᴏ = -15V.
Common uses:
- RF amplifiers, oscillators, and signal processing circuits.
Application
MMBTH81 is primarily used as a coupling agent in chemical synthesis, especially in the production of azo dyes and pigments. It also serves as an intermediate in pharmaceuticals, agrochemicals, and organic synthesis. Its applications extend to analytical chemistry for spectrophotometric determination of certain compounds. Additionally, it is utilized in research and development for creating novel chemical entities.
Package
The MMBTH81 is a PNP bipolar junction transistor (BJT) typically available in a SOT-23 surface-mount package. This compact 3-pin package is widely used for small-signal applications due to its small size and ease of assembly on PCBs.
