LOW NOISE: 4.2NV/√HZ TYPICAL HIGH GAIN: 1.6MS TYPICAL (2N4339) LOW CUTOFF VOLTAGE: 2N4338 < 1.0V DESCRIPTION The -50V 2N4338 and 2N4339 are targeted for sensitive amplifier stages for mid-frequencies designs. Gate leakages are typically less than 10pA at room temperatures. The 2N4338 has a cutoff vo.