2N3439 thru 2N3440 Qualified Levels: NPN LOW POWER SILICON JAN, JANTX, Available on TRANSISTOR JANTXV and JANS commercial versions Qualified per MIL-PRF-19500/368 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 and UA 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 2N3439 thru 2N3440 MECHANICAL and PACKAGING CASE: Hermetically sealed, kovar base, nickel cap. TERMINALS: Tin/lead solder dip or RoHS compliant pure tin (commercial grade only) plate over gold. MARKING: Part number, date code, manufacturers ID. POLARITY: NPN (see package outline). WEIGHT: Approximately 1.064 grams. See Package Dimensions on last page. PART NOMENCLATURE JAN 2N3439 (e3) Reliability Level RoHS Compliance (available on commercial grade only) JAN = JAN Level JANTX = JANTX Level e3 = RoHS compliant with pure JANTXV = JANTXV Level tin plate JANS = JANS Level e4 = RoHS compliant with gold Blank = Commercial plate Blank = non-RoHS compliant JEDEC type number (see Electrical Characteristics table) SYMBOLS & DEFINITIONS Symbol Definition Common-base open-circuit output capacitance. C 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 LDS-0022, Rev. 4 (111683) 2011 Microsemi Corporation Page 2 of 6