The RF Line
PNP Silicon High-Frequency Transistor

Designed primarily for use in the high–gain, low–noise small–signal amplifiers for operation up to 3.5 GHz. Also usable in applications requiring fast switching times.

• High Current Gain–Bandwidth Product —
    fT = 3.4 GHz (Typ) @ IC = –35 mAdc (MMBR521LT1)
    fT = 4.2 GHz (Typ) @ IC = –50 mAdc (MRF5211LT1)
• Low Noise Figure @ f = 1.0 GHz —
    NF(matched) = 2.5 dB (Typ) (MMBR521LT1)
    NF(matched) = 2.8 dB (Typ) (MRF5211LT1)
• High Power Gain — Gpe (matched) = 11 dB (Typ)
• Guaranteed RF Parameters
• Surface Mounted SOT–23 (MMBR521LT1) & SOT–143 (MRF5211LT1) Offer Improved RF Performance
    Lower Package Parasitics
    Higher Gain
• Available in tape and reel packaging options:
    T1 suffix = 3,000 units per reel