Asymmetrical N-channel planar epitaxial junction field-effect transistors in the miniature plastic envelope intended for applications up to the v.h.f. range in hybrid thick and thin-film circuits. Special features are the low feedback capacitance and the low noise figure. These features make the product very suitable for applications such as the r.f. stages in f.m. portables (BF510), car radios (BF511) and mains radios (BF512) or the mixer stage (BF513).
| Drain-source voltage | VDS | max. | 20 | V |
| Drain-gate voltage (open source) | VDGO | max. | 20 | V |
| Drain current (DC or average) | ID | max. | 30 | mA |
| Gate current | ± IG | max. | 10 | mA |
| Total power dissipation up to Tamb =40 ℃ | Ptot | max. | 250 | mW |
| Storage temperature range | Tstg | −65 to + 150 | ℃ | |
| Junction temperature | Tj | max. | ℃ | |