TECHNICAL DATA A or class B push-pull audio and servo amplifier. It features low saturation resist- ance, high current and power dissipation, high beta at high current, and excellent high-temperature performance. JEDEC No. TO-5 package; outline 6, Outlines Section. This type is identical with type 2N1482 except for the following items: CHARACTERISTICS In Common-Emitter Circuit DC Forward Current-Transfer Ratio (with collector-to-emitter volts = 4 and collector ma = ZOO)... oo. ccc cee eee eee ene 20 to 60 DC Collector-to-Emitter Saturation Resistance (with collector ma = 200 and base rma = 20). 2.6... 2. eee ree ee eee T max ohms POWER TRANSISTOR B Silicon n-p-n type used in a wide variety of medium-power switching f and amplifier applications in indus- 2 N1481 of trial and military equipment. It is used EF \ c in power switching, de-to-de converter, inverter, chopper, solenoid and relay control circuits; in oscillator, regulator, and pulse-amplifier circuits; and as a class A or class B push-pull audio and servo amplifier. It features low saturation resist- ance, high current and power dissipation, high beta at high current, and excellent high-temperature performance. JEDEC No. TO-5 package; outline 6, Outlines Section. This type is identical with type 2N1482 except for the following items: MAXIMUM RATINGS COLLECTOR-TO-BASE VOLTAGE (with emitter open)... 0... cee eee cee eens 60 max volts COLLECTOR-TO-EMITTER VOLTAGE: With emitter-to-base volts = 1.5.........06 00000) 60 max volts With base open... 0. cece eee etter een ee rent enee 40 maz volta CHARACTERISTICS Collector-to-Emitter Breakdown Voltage (with emitter-to-base volts == 1.5 and collector ma = 0.25)..........5 60 min volts Collector-to-Emitter Sustaining Voltage (with collector ma = 50 and base current = 0)........ cece e eens 40 min volts POWER TRANSISTOR B Silicon n-p-n type used in a wide variety of medium-power switching ' and amplifier applications in indus- 2 N1482 OH trial and military equipment. It is used E in power switching, dc-to-de converter, inverter, chopper, solenoid and relay control circuits; in oscillator, regulator, and pulse-amplifier circuits; and as a class A or class B push-pull audio and servo amplifier. It features low saturation resist- ance, high current and power dissipation, high beta at high current, and excellent high-temperature performance. JEDEC No. TO-5 package; outline 6, Outlines Section. MAXIMUM RATINGS COLLECTOR-TO-BASE VOLTAGE (with emitter open). ..... ccc sce e ee eee eee 100 maz volts COLLECTOR-TO-EMITTER VOLTAGE: With emitter-to-base volts = 1.5... ....0 0.00. e ccc ec eee eens 100 maz volts With base open... ec ree eer ee eee nett 55 max volts 213 RCA TRANSISTOR MANUAL EMITTER-TO-BASH VOLTAGE (with collector open). ...-. ce cee cece rc eeee 12 max volts COLLECTOR CURRENT. : 15 max amperes EMITTER CURRENT... 1.75 max amperes BASE CURRENT.......... . 1 masz ampere TRANSISTOR DISSIPATION: At case temperatures up to 25C. 2... cee ce ee eee bower enter neee 5 max watts At case temperatures above 25C... 1... ee cee cee eens be eeeeseee See curve page 68 TEMPERATURE RANGE: Operating (junction) and Storage..... ee coesscenes debe eereceeeees .. +65 to 200 c CHARACTERISTICS Collector-to-Emitter Brexkdown Voltage (with emitter-to-base volts = 1.5 and collector ma = 0.25).........cc cece cence en eteeee . 100 min volts Collector-to-Emitter Sustaining Voltage (with collector ma = 50 and base current = 0).......... see rerenee 55 min volts Base-to-Emitter Voltage (with collector-to-emitter volts = 4 and collector ma = 200). 0.0... ce eee eee erect eee reer tene eee 3 mex volts Collector-Cutoff Current (with collector-to-base volis = 80 and emitter current = 0)... 0.0... ccc ce cee cece tence eee see eeaee . 10 maz Ba Emitter-Cutoff Current (with emitter-to-base volts = 12 and collector current = Thermal Resistance: Junction-to-case.......... sae seaee . 85 max C/watt Junction-to-ambient . 200 maz = C/watt 10 maz Ba Thermal Time Constant. ... 10 rosec in Common-Base Circuit Smal!-Signal Forward-Current-Transfer-Ratio Cutoff Frequency (with colleetor-to-base volts = 28 and collector ma = 6) ones 1.6 Me Coliector-to-Base Capacitance (with collector-t to-base volts = and emitter current = )).......65.08- aeeees sae eceee been ever enes 150 pf In Common-Emitter Circuit DC Forward Current-Transfer Ratio (with collector-to-emitter volts = 4 and collector ma = 400). 0.0.0.0... ccc eee cence enn eenernanes 85 to 100 Small-Signal Forward Current-Transfer Ratio (with collector-to-emitter volts = 4 and collector ma = 6)........... et eeens ee eee eee ee teene 50 DC Collector-to-Emitter Saturation Resistance (with collector ma == 200 and base ma = 10)........eecceeeeces eeee T maz ohms TYPICAL BASE MILLIAMPERES SRO DEEN peerees SURane ieee Deeeeen Reneeee Gene TYPE 2NI482 " 7 |_ COMMON- EMITTER CIRCUIT, BASE INPUT, COLLECTOR-TO- EMITTER VOLTS, 4 re CASE TEMPERATUREC a 50 Se uw 25 -35 Z 40;- 200 4 4 = 30 | Wt ww <q 20 ae a 4 Ze = - 10 iS A 92CS-10427R2 _ Je Cee Vis = 8.5 volts 0.5 ' LS 2 Veco = 12 volts BASE - TO- EMITTER VOLTS Ri = 50 ohms, 1 watt 100 ohms, 1 watt g2cs~-l0436Tt = 59 ohms, 2 watts TYPICAL OPERATION IN POWER-SWITCHING CIRCUIT ABOVE DC Collector Supply Voltage (Voc). ... 00. cece erect ee cee eee e teenies 12 volts DC Base Supply Voltage (Vpp) .. . 8.5 volts Generator Resistance....... 50 ohms On DC Collector Curren: (fc) .. eae . aes 200 ma Turn-On DC Base Current (Int). cae e sence deen cence eeaee 20 ma Turn-Off DC Base Current (IB2). 0.60... e cee eee eens beaten tree tence 8.5 ma Switching Time: Delay time (ta)... 6. ccc eet e eee eee . 0.2 usec Rise time (tr). 01.26... . oe 1 usec Storage time (ts). . sacs . 6.6 psec Fall time (tr)..... 1 usec 214