Transistors
1
Publication date: May 2007 SJC00379AED
This product complies with the RoHS Directive (EU 2002/95/EC).
2SA1790GSilicon PNP epitaxial planar type
For high-frequency amplification
Complementary to 2SC4626G
■Features
•Optimum for RF amplification of FM/AM radios
•High transition frequency fT
•SS-Mini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing
■Absolute Maximum Ratings Ta = 25°C
Parameter Symbol Rating Unit
Collector-base voltage (Emitter open) VCBO −30 V
Collector-emitter voltage (Base open) VCEO −20 V
Emitter-base voltage (Collector open) VEBO −5V
Collector current IC−30 mA
Collector power dissipation PC125 mW
Junction temperature Tj125 °C
Storage temperature Tstg −55 to +125 °C
■Electrical Characteristics Ta = 25°C ± 3°C
Rank B C
hFE 70 to 140 110 to 220
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.
2.*: Rank classification
Parameter Symbol Conditions Min Typ Max Unit
Base-emitter voltage VBE VCE = −10 V, IC = −1 mA − 0.7 V
Collector-base cutoff current (Emitter open)
ICBO VCB = −10 V, IE = 0 − 0.1 µA
Collector-emitter cutoff current (Base open)
ICEO VCE = −20 V, IB = 0 −100 µA
Emitter-base cutoff current (Collector open)
IEBO VEB = −5 V, IC = 0 −10 µA
Forward current transfer ratio *hFE VCE = −10 V, IC = −1 mA 70 220
Collector-emitter saturation voltage VCE(sat) IC = −10 mA, IB = −1 mA − 0.1 V
Transition frequency fTVCB = −10 V, IE = 1 mA, f = 200 MHz 150 300 MHz
Noise figure NF VCB = −10 V, IE = 1 mA, f = 5 MHz 2.8 4.0 dB
Reverse transfer impedance Zrb VCB = −10 V, IE = 1 mA, f = 2 MHz 2 2 50 Ω
Reverse transfer capacitance (Common emitter)
Cre VCB = −10 V, IE = 1 mA, f = 10.7 MHz 1.2 2.0 pF