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| LESHAN RADIO COMPANY, LTD. Driver Transistors PNP Silicon 3 COLLECTOR MMBTA55LT1 MMBTA56LT1 3 1 BASE 2 EMITTER 1 MAXIMUM RATINGS Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current -- Continuous Symbol V CEO V CBO V EBO 2 Value MMBTA55 MMBTA56 -60 -60 -4.0 -500 -80 -80 Unit Vdc Vdc Vdc mAdc CASE 318-08, STYLE 6 SOT-23 (TO-236AB) IC THERMAL CHARACTERISTICS Characteristic Total Device Dissipation FR- 5 Board, (1) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient Total Device Dissipation Alumina Substrate, (2) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient Junction and Storage Temperature Symbol PD Max 225 1.8 556 300 2.4 417 -55 to +150 Unit mW mW/C C/W mW mW/C C/W C R JA PD R JA T J , T stg DEVICE MARKING MMBTA55LT1 = 2H; MMBTA56LT1 = 2GM ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted.) Characteristic Symbol Min Max Unit OFF CHARACTERISTICS Collector-Emitter Breakdown Voltage (3) (I C = -1.0 mAdc, I B= 0 ) Emitter-Base Breakdown Voltage (I E = -100 Adc, I C = 0 ) Collector Cutoff Current ( V CE = -60Vdc, I B = 0) Collector Cutoff Current ( V CB = -60Vdc, I E= 0) ( V CB = -80Vdc, I E= 0) MMBTA55 MMBTA56 V (BR)EBO V (BR)CEO Vdc -60 -80 -4.0 -- -- -- -- -0.1 Vdc Adc Adc -- -- -0.1 -0.1 I CEO I CBO MMBTA55 MMBTA56 1. FR-5 = 1.0 x 0.75 x 0.062 in. 2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina. 3. Pulse Test: Pulse Width <300 s, Duty Cycle <2.0%. M29-1/2 LESHAN RADIO COMPANY, LTD. MMBTA55LT1 MMBTA56LT1 ELECTRICAL CHARACTERISTICS (T A = 25C unless otherwise noted) (Continued) Characteristic Symbol hFE 100 100 -- -- -- -0.25 Min Max Unit -- ON CHARACTERISTICS DC Current Gain (I C = -10 mAdc, V CE = -1.0 Vdc) (I C = -100mAdc, V CE = -1.0 Vdc) Collector-Emitter Saturation Voltage (I C = -100mAdc, I B = -10mAdc) Base-Emitter On Voltage (I C = -100mAdc, V CE = -1.0Vdc) VCE(sat) Vdc V BE(on) -- -1.2 Vdc SMALL-SIGNAL CHARACTERISTICS Current -Gain-Bandwidth Product(4) (V CE = -1.0 Vdc, I C = -100mAdc, f = 100 MHz) fT 50 -- MHz 4. f T is defined as the frequency at which |h f e | extrapolates to unity. M29-2/2 |
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