TECHNICAL DATA class B push-pull audio and servo amplifier. It features low saturation resistance, high current and power dissipation, high beta at high current, and excellent high temperature performance. This type is stud-mounted to provide positive heat-sink contact and has a cold-weld seal. JEDEC No. TO-36 package; outline 14, Outlines Section. This type is electrically identical with type 2N1490, TRANSISTOR Germanium p-n-p type used in / intermediate-frequency amplifier ap~ plications in battery-operated AM 2NI1 524 z- Xv c portalle radio receivers. In a common- \ emitter circuit, this type is capable of providing 2 maximum power gain of 33 db with neutralization or 30.2 db without neutralization. JEDEC No. TO-1 package; outline 4, Outlines Section. MAXIMUM RATINGS COLLECTOR-TO-BASE VOLTAGE (with emitter open).. 24 max volts EMITTER-TO-BASE VOLTAGE (with collector open)....... . . 0.5 max volt COLLECTOR CURRENT. 0.0... ccc eee .e 10 maz ma EMITTER CURRENT... 1... eet e eee tenn eae 10 max ma TRANSISTOR DISSIPATION: At ambient temperatures up to 25C 80 max mw At ambient temperature of 55C... . 50 max mw At ambient temperature of 711C 35 max mw AMBIENT-TEMPERATURE RANGE: Operating. 2.0.0... ce eee ee ee ete eee eee nee 65 to 71 C Storage... cee eee eee ee ee tee teen eee tense ene 65 to 85 C CHARACTERISTICS Collector-to-Base Breakdown Voltage (with emitter-to-base volts = 0.5 and collector wa = 50) 2.0000... eee . ~24 min volts Collector-Cutoff Current (with collector-to-base volts = 12 and emitter current = 9)... 0.0 ee eee tenet nee 16 max ua Emitter-Cutoff Current (with emitter-to-base volts = 0,5 and coliector current = 0).. 0.0.2... - cc cee cee cee eee eter teen eetee 16 max wa Thermal Resistance: Junstion-to-ambient...........6. bene een ene tant e eee eeeene . 0.4 O/mw In Common-Base Circuit Small-Signal Forward Current-Transfer-Ratio (with collector-to-base volts = 12, collector ma =: 1, and frequency = 1 kilocycle)...... 0.983 Small-Signal Forward-Current-Transfer-Ratio Cutoff Frequency (with collector-to-base volts = 12, collector ma = 1, and frequency = 1 kilocyele}...............- Sacer e er cceae dene eeee 33 Me TYPICAL TRANSFER CHARACTERISTIC I T TYPE 2N1524 COLLECTOR ~TO-EMIT TER [~ VOLTS?-6 AMBIENT TEMPERATURE=25C | t a _* ND COLLECTOR Mi LIAMPERES a Y Q 50 [00 I50 200 250 BASE-TO-EMITTER MILLIVOLTS 92C-10679T 225