2SC1845 NEC | Alldatasheet

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NEC NPN SILICON TRANSISTOR DESCRIPTION — The 2SC1845 is the best for use as the middle range amplifier in Hi-Fi stereo control amplifiers, power amplifiers, and etc. PACKAGE DIMENSIONS in millimeters (inches)

52 MAX

(0.204 MAX.) FEATURES © High Voltage. Vcgo : 120 V © Low Output Capacitance. Cop : 1.6 pF TYP. (Vcg =30 V) _ © High hee. hee : 600 TYP. (VcE =6.0 V, Ic = 1.0 mA) 23 © Super Low Noise. NV : 25 mV TYP. (See test Circuit.) a8 s ABSOLUTE MAXIMUM RATINGS 0 IL. o«s Maximum Temperatures | I (0.018) 32 . ze 88 5 (019) - 8 Maximum Power Dissipation (Ta= 25 °C) ai | Bs Maximum Voltages and Currents (Ta= 25 °C) Qay 28 EMITTER — ElAy_: $c-438 3: BASE lec: PASS ELECTRICAL CHARACTERISTICS (Ta=25 °C) SYMBOL CHARACTERISTIC MIN TYP. MAX. UNIT TEST CONDITIONS hre1 OC Current Gain 150 580 - Voce =6.0 V, I¢=0.1 mA hee2 DC Current Gain 200 600 1200 - Voce =6.0 V, I¢= 1.0 mA | a Gain Bandwidth Product 50 110 MHz Vce=6.0 V, Ig=-1.0 mA Cop Output Capacitance 1.6 25 pF Vp =30 V, Ig =0, f= 1.0 MHz NV Noise Voltage 25 40 mV VcE=5.0 V, IC = 1.0 mA, Rg = 100 k2 Gy =80 dB, f= 10 Hz to 1.0 kHz 'cBo. Collector Cutoff Current 50 nA Veg=120 V, Ie =0 | teB0 Emitter Cutoff Current 50 nA Veg=5.0 V, Ic=0 VcE (sat) Collector Saturation Voltage 0.07 0.30 Vv Ig=10 mA, Ig=1.0 mA Classification of hrez a a ' | hee Test Conditions : Voge =6.0 V, I¢=1.0 mA ee 281

ise noted) ° less otherwise __ _ ISTICS (Ta _ . - TYPICAL CHARACTER _ _ — SLEEER RUE or ee “ LLECT _ A eae AMBIENT TEMP [i ree ai | ae co . He ce Asseeseusuuna i secentceee p bE eo Prt rrr ® es Co SH occa i+ A core | L— iT | bs] | 3 fy iE as a AZseece Ls 3 | oseneene i HN + rr} & FO Le ann | ozaeeens atk ee ani a= ry | uae pH SSEEEEE] 3 -aean an “1G TELL 7S & xq A s Gees a yoo EL gu CEER [TTT | 3 7 a E He é Coo aan tH é gasceaeee + z° CO TTT = = are : E sears obs an Emitter Voltage—V _ Ta an HAS ; : | CT LT ttn) — a fs Cl oo perature SO eee eon Ane Oeero ream | : - ey = Ta—Ambient IN vs. vi S| eee MS Seti aeeeiiic| led BSAETSH Aa t sae Ee RENT ves (pee Tun 22 EET COLLECTOR CURRENT we | : moti ote eer cee aii it SE TO === G60 Cit a Cit ss 2S peal ail Sti erie gate 7 fe a 1m See Sei 23 Sie api Loe § ol et Th Ni 88 or Le a = Cnt (| 2 cH sti z Breeteterceesat eae feces HEE la k A g ee i ne age peer ae ich Y Seeenssacna A = eee BP ssesiiansiaiaai zo odie Be 0TGE 0 ze, — a : . ' —===—) 2 ‘fren soo = ° Cae i T vs. COLLEC ==s | ee an TH PRODUC SS ool g ven eget ll N BANDWIDTH F SSS bie iy 10}K: 1.38 eS Eaten ae ee Sai Ee a, Sati meniiiaet eee Se Set * Porat oe sai mi ee Pi mat iil SSS mulil ea 3 ils SS SH oman 2 col pope 3 Sesitiee eesti ots Su Se 3 et See 3 NSer ei earth: a |

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NOISE FIGURE MAP,

500 SSSR SEAR 10 ue

K—ISBSSTISRTPNTRA 4 t=10 He 200 k P SPN ACES Ti oo NISSAN Sc] 7 Sa % 20 TSS

5 SS SSS

? ok SSN 2, Wee ro UT CTT Croke Bi OT ar -OE Ze sa ten tolacis Currene=9n NOISE VOLTAGE TEST CIRCUIT : 54 : 1kQ : A (470 uF 3 10 kQ G Nv 8 0.1 uF => | a. | VTVM. f=10 Hz to 1.0 KHz Rg=it0 40 ¢ @) La 10 na 2,47 AF Gy=80 48 -15V FLAT VES V, ig=1.0 mA, Rg=100 k2, Gy=80 dB, FLAT(=10 Hz to 10 kHz) | 283