2N3418 thru 2N3421 Qualified Levels: NPN MEDIUM POWER SILICON JAN, JANTX and Available on TRANSISTOR JANTXV commercial versions Qualified per MIL-PRF-19500/393 DESCRIPTION This family of high-frequency, epitaxial planar transistors feature low saturation voltage. These devices are also available in TO-39 and low profile U4 packaging. Microsemi also offers numerous other transistor products to meet higher and lower power ratings with various switching speed requirements in both through-hole and surface-mount packages. Important: For the latest information, visit our website 2N3418 thru 2N3421 MECHANICAL and PACKAGING CASE: Hermetically sealed, kovar base, nickel cap MARKING: Part number, date code, manufacturers ID POLARITY: See Package Dimensions on last page. PART NOMENCLATURE JAN 2N3418 (e3) Reliability Level RoHS Compliance JAN = JAN Level e3 = RoHS Compliant (available JANTX = JANTX Level on commercial grade only) JANTXV = JANTXV Level Blank = non-RoHS Compliant Blank = Commercial JEDEC type number (see Electrical Characteristics table) SYMBOLS & DEFINITIONS Symbol Definition C Common-base open-circuit output capacitance. obo I Collector cutoff current, base open. CEO I Collector cutoff current, circuit between base and emitter. CEX I Emitter cutoff current, collector open. EBO h Common-emitter static forward current transfer ratio. FE V Collector-emitter voltage, base open. CEO V Collector-emitter voltage, emitter open. CBO V Emitter-base voltage, collector open. EBO T4-LDS-0192, Rev. 2 (111684) 2011 Microsemi Corporation Page 2 of 6