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TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT process)

Audio Frequency Amplifier Applications
Unit: mm

· Small package
· High voltage: VCEO = −50 V (min)
· High hFE: hFE = 70~400
· Excellent hFE linearity: hFE (IC = −0.1 mA)/hFE (IC = −2 mA) = 0.95 (typ.)
· Low noise: NF = 1dB (typ.), 10dB (max)
· Complementary to 2SC2458

Maximum Ratings (Ta = 25°C)

Characteristics Symbol Rating Unit

Collector-base voltage VCBO -50 V
Collector-emitter voltage VCEO -50 V
Emitter-base voltage VEBO -5 V
Collector current IC -150 mA
Base current IB -50 mA
Collector power dissipation PC 200 mW JEDEC ―
Junction temperature Tj 125 °C JEITA ―
Storage temperature range Tstg -55~125 °C TOSHIBA 2-4E1A

Weight: 0.13 g (typ.)
Electrical Characteristics (Ta = 25°C)

Characteristics Symbol Test Condition Min Typ. Max Unit

Collector cut-off current ICBO VCB = -50 V, IE = 0 ¾ ¾ -0.1 mA
Emitter cut-off current IEBO VEB = -5 V, IC = 0 ¾ ¾ -0.1 mA
DC current gain VCE = -6 V, IC = -2 mA 70 ¾ 400
Collector-emitter saturation voltage VCE (sat) IC = -100 mA, IB = -10 mA ¾ -0.1 -0.3 V
Transition frequency fT VCE = -10 V, IC = -1 mA 80 ¾ ¾ MHz
Collector output capacitance Cob VCB = -10 V, IE = 0, f = 1 MHz ¾ 4 7 pF
VCE = -6 V, IC = -0.1 mA, f = 1 kHz,
Noise figure NF ¾ 1.0 10 dB
RG = 10 kW

Note: hFE classification O: 70~140, Y: 120~240, GR: 200~400

1 2003-03-27

2SA1048 2 2003-03-27 .

please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer. airplane or spaceship instruments. These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). to comply with the standards of safety in making a safe design for the entire system. · The information contained herein is presented only as a guide for the applications of our products. 3 2003-03-27 . In developing your designs. all types of safety devices. Unintended Usage include atomic energy control instruments. medical instruments. semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. etc. bodily injury or damage to property.” or “TOSHIBA Semiconductor Reliability Handbook” etc. transportation instruments. domestic appliances. when utilizing TOSHIBA products... combustion control instruments. office equipment. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. 2SA1048 RESTRICTIONS ON PRODUCT USE 000707EAA · TOSHIBA is continually working to improve the quality and reliability of its products. It is the responsibility of the buyer. · The information contained herein is subject to change without notice. industrial robotics. and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life. please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices. traffic signal instruments. Also.). personal equipment. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer’s own risk. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. Nevertheless. measuring equipment. etc.

This datasheet has been download from: Datasheets for electronics components. .