2N4221A Overview
The -50V InterFET 2N4220/A and 2N4221/A are targeted for sensitive amplifier stages for midfrequencies designs. Gate leakages are typically less than 10pA at room temperatures. The “A” variants are screened for lower noise.
2N4221A Key Features
- InterFET N0016H Geometry
- Typical Noise: 6 nV/√Hz
- Low Ciss: 3.5pF Typical
- High Input Impedance
- RoHS pliant
- SMT, TH, and Bare Die Package options


