SST3904 Specs and Replacement
Type Designator: SST3904
SMD Transistor Code: R1A
Material of Transistor: Si
Polarity: NPN
Absolute Maximum Ratings
Maximum Collector Power Dissipation (Pc): 0.2 W
Maximum Collector-Base Voltage |Vcb|: 60 V
Maximum Collector-Emitter Voltage |Vce|: 40 V
Maximum Emitter-Base Voltage |Veb|: 6 V
Maximum Collector Current |Ic max|: 0.2 A
Max. Operating Junction Temperature (Tj): 150 °C
Electrical Characteristics
Transition Frequency (ft): 300 MHz
Collector Capacitance (Cc): 4 pF
Forward Current Transfer Ratio (hFE), MIN: 100
Package: SST3
SST3904 Substitution
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SST3904 datasheet
umh2n umt3904 sst3904 mmst3904 2.pdf 
General purpose (dual digital transistors) EMH2 / UMH2N / IMH2A Features Two DTC144Es chips in a EMT or UMT or SMT package. Dimensions (Unit mm) 1) EMH2 2) Mounting possible with EMT3 or UMT3 or SMT3 automatic mounting machines. (4) ( ) 3 (5) (2) 3) Transistor elements are independent, eliminating interference. ( ) (1) 6 1.2 4) Mounting cost and area can be cut in h... See More ⇒
umd9n umt3904 sst3904 mmst3904 3.pdf
Digital Transistor (Dual Digital Transistors for Inverter Drive) EMD9 / UMD9N / IMD9A Features Dimensions (Unit mm) 1) DTA114Y and DTC114Y transistors are built-in a EMT EMD9 or UMT or SMT package. (4) (3) (5) (2) (6) (1) Inner circuit 1.2 1.6 EMD9 / UMD9N IMD9A (3) (2) (1) (4) (5) (6) R1 R2 R1 R2 Each lead has same dimensions DTr1 DTr1 DTr2 DTr2 ROHM EMT6 ... See More ⇒
UMT3904 / SST3904 / MMST3904 Transistors NPN General Purpose Transistor UMT3904 / SST3904 / MMST3904 Features Dimensions (Unit mm) 1) BVCEO > 40V (IC = 1mA) UMT3904 2) Complements the UMT3906 / SST3906 / MMST3906. (1) Emitter ROHM UMT3 (2) Base EIAJ SC-70 (3) Collector SOT-323 SST3904 Package, marking and packaging specifications Part No. UMT3904 SST3904 MMST39... See More ⇒
Detailed specifications: US6T7, US6X3, US6X4, US6X5, US6X6, MMSTA28, SST2222A, SST2907A, TIP2955, SST3906, SST4401, SST4403, SST6838, SST6839, SSTA06, SSTA13, SSTA28
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