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| Solid State Devices, Inc. 14830 Valley View Blvd * La Mirada, Ca 90638 Phone: (562) 404-7855 * Fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com SFT4957A2 Series Dual Microminiature Package 30 mA 30 Volts Dual PNP RF Transistor Features: * * * * * RF Switching Transistor Multiple Devices Reduce Board Space Replacement/Enhancement for 2N4957UB TX, TXV, S-Level screening available NPN complimentary parts available (SFT2857A2) DESIGNER'S DATA SHEET Part Number / Ordering Information 1/ SFT4957A2 __ __ Screening 2/ __ = Commercial TX = TX Level TXV = TXV Level S = S Level Package: GW = Gullwing Maximum Ratings Symbol Value Units Collector - Emitter Voltage Collector - Base Voltage Emitter - Base Voltage Continues Collector Current Power Dissipation @ TC = 25C (each device) Operating & Storage Temperature VCEO VCBO VEBO IC PD Top & Tstg RJC 30 30 3 30 200 -65 to +200 290 Volts Volts Volts mAmps mW C C/W Maximum Thermal Resistance (Junction to PCB) Gullwing (GW) NOTE: All specifications are subject to change without notification. SCD's for these devices should be reviewed by SSDI prior to release. DATA SHEET #: TR0077 A Doc Solid State Devices, Inc. 14830 Valley View Blvd * La Mirada, Ca 90638 Phone: (562) 404-7855 * Fax: (562) 404-1773 ssdi@ssdi-power.com * www.ssdi-power.com SFT4957A2 Series Symbol Min Max Units Electrical Characteristic 4/ Collector - Emitter Sustaining Voltage Collector Cutoff Current Collector Cutoff Current Collector Cutoff Current Emitter Cutoff Current DC Forward Current Transfer Ratio * IC = 1 mA BVCEO Vcb = -20 V Vcb = -30 V Vcb = -20 V, Ta= 150C Veb = -3.0 V VCE = -10V, IC = 0.5 mA VCE = -10V, IC = 2.0 mA VCE = -10V, IC = 5 mA VCE = -10V, IC =5 mA, Ta= -55C VCE = -10V, IC = 2.0 mA VCE = -10V, f = 1MHz VCE =-10V, IC =2mA, f= 63.6 MHz VCE =-10V, IC = 2mA, f= 450 MHz Ic = 2 mA, Vce = -10 V, RL = 50, f = 450 MHz ICBO1 ICBO2 ICBO3 IEBO HFE1 HFE2 HFE3 HFE4 hfe ccb rbCc Gpe NF -30 -- -- -- -- 15 20 30 10 12 -- 1.0 17 -- -- 100 100 100 100 -- -- 165 -- 36 0.8 16 25 3.5 Volts nA uA uA uA Frequency Transition (Small Signal Current Gain) @ f= 100 MHz CB feedback (output) Capacitance CB time constant Common emitter small signal power gain Noise Figure pF psec dB dB NOTES: * Pulse Test: Pulse Width = 300sec, Duty Cycle = 2% 1/ For Ordering Information, Price, and Availability Contact Factory. 2/ Screening per MIL-PRF-19500 3/ For Package Outlines Contact Factory. 4/ Unless Otherwise Specified, All Electrical Characteristics @25C. PIN ASSIGNMENT Pin 2 Pin 3 Pin 4 Base1 Emitter1 Collector2 Available Part Numbers: SFT4957A2GW Package GW Pin 1 Collector1 Pin 5 Base2 Pin 6 Emitter2 NOTE: All specifications are subject to change without notification. SCD's for these devices should be reviewed by SSDI prior to release. DATA SHEET #: TR0077 A Doc |
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