Toshiba TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT process) 2SA1312 Data Sheet
Summary
This low noise PNP transistor is engineered specifically for high-performance audio frequency amplification. Featuring excellent linearity and a minimal noise figure (0.2dB), it serves as a highly reliable component, complementary to the 2SC3324 series. The manual provides comprehensive specifications, including absolute maximum ratings, electrical characteristics, and detailed safety guidelines crucial for designers integrating this unit into general electronics applications—such as consumer goods, industrial controls, and measuring equipment.
Page 1 Text Content
2SA1312
TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT process)
2SA1312
Audio Frequency Low Noise Amplifier Applications
Unit: mm
• High voltage: VCEO = −120 V • Excellent h FE linearity: h FE (IC = −0.1 m A)/ h FE (IC = −2 m A) h= 0.95 (typ.) • High h FE: h FE = 200~700 • Low noise: NF (2) = 0.2d B (typ.), 3d B (max) at f = 1 k Hz • Complementary to 2SC3324 • Small package
Absolute Maximum Ratings (Ta = 25°C)
Characteristics Symbol Rating Unit
Collector-base voltage VCBO −120 V
Collector-emitter voltage VCEO −120 V
Emitter-base voltage VEBO −5 V
Collector current IC −100 m A
Base current IB −20 m A
JEDEC TO-236MOD
Collector power dissipation PC 150 m W
JEITA SC-59
Junction temperature Tj 125 °C
TOSHIBA 2-3F1A
Storage temperature range Tstg −55~125 °C
Weight: 0.012 g (typ.)
Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated failure rate, etc).
Marking
Page Summary Contents For Toshiba TOSHIBA Transistor Silicon PNP Epitaxial Type (PCT process) 2SA1312 Data Sheet
Manual Details
| Brand | Toshiba |
|---|---|
| Pages | 5 |
| File Size | 622.31 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
What is the typical noise figure at a frequency of 1 kHz?
The Noise Figure NF(2) is typically 0.2dB, with a maximum value of 3dB.
Can this product be used in life-critical applications like medical devices or airplanes?
No; it is not warranted for usage in instruments that require extraordinarily high quality/reliability, such as medical instruments or airplane equipment.
What is the maximum permissible collector power dissipation (P_C)?
The absolute maximum rating for collector power dissipation (P_C) is 150 mW.
What precautions must be taken regarding reliability under heavy loads?
One must review the Toshiba Semiconductor Reliability Handbook and individual reliability data to design appropriate reliability.