MIL-PRF-19500-398 Semiconductor Device, Transistor, Npn, Silicon, High-Frequency, Types 2N3866, 2N3866A, 2N3866Ub, 2N3866Aub, Jan, Jantx, Jantxv, Jans, Janhc, Jankc, Jansm, Jansd, Jansp, Jansl, Jansr, Jansf, Jansg, Jansh, Janhcm, Janhcd, Janhcp, Janhcl, Janhcr, Janhcf, Janhcg, Janhch, Jankcm, Jankcd, Jankcp, Jankcl, Jankcr, Jankcf, Jankcg, And JankchThis specification covers the performance requirements for NPN silicon, VHF-UHF amplifier transistor. Four levels of product assurance are provided for each device type as specified in MIL-PRF-19500. Two levels of product assurance are provided for die. Radiation hardness assurance \(RHA\) level designators "M", "D", "P", "L", "R", "F", "G", and "H" are appended to the device prefix to identify devices which have passed RHA requirements.

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MIL-PRF-19500/398K

C1, C2, C5 = 3 - 35 pF.

C3 = 24 pF (see note).

C4 = 0.4 - 7 pF.

L1 = Straight piece number 16 bare tin wire, .625 inch (15.87 mm) long.

L2 = 3 turns number 16 wire, .250 inch (6.35 mm) ID, .312 inch (7.92 mm) long.

L3 = 1 turns number 18 wire, .250 inch (6.35 mm) ID, .022 inch (0.56 mm) long.

L4 = Ferrite RF choke, Z = 450 Ω.

NOTE: For optimum performance, C3 should be mounted as close as possible to base lead.

FIGURE 4. Power output test circuit (400 MHz).