Key facts
- Brand
- Hitachi
- Model
- 2SA1031
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-01
Start here
Hitachi 2SA1031 and 2SA1032 Datasheet
This document provides the specifications and application guidance for Hitachi 2SA1031 and 2SA1032 silicon PNP epitaxial transistors. The transistors are intended for low‑frequency, low‑noise amplifier circuits and are often used as a complementary pair with 2SC458 or 2SC2310 devices.
The datasheet lists absolute maximum ratings, detailed electrical characteristics, DC current transfer ratios, gain‑bandwidth product, noise figure and output capacitance, as well as legal notices regarding reproduction and medical‑use restrictions.
Hitachi 2SA1031 specifications
| Collector‑to‑Base Voltage (Vcbo) | -30 V to -55 V |
|---|---|
| Collector‑to‑Emitter Voltage (Vceo) | -30 V to 50 V |
| Emitter‑to‑Base Voltage (Vebo) | -5 V |
| Collector Current (Ic) | 100 mA |
| Emitter Current (Ie) | 100 mA |
| Collector Power Dissipation (Pc) | 300 mW |
| Junction Temperature (Tj) | 150 °C |
| Storage Temperature (Tstg) | -55 °C to +150 °C |
| DC Current Transfer Ratio (hFE) | 100 – 500 (2SA1031) / 100 – 320 (2SA1032) |
| Gain‑Bandwidth Product (fT) | 200 – 280 MHz |
| Noise Figure (NF) | 6 dB (approx.) |
| Collector Output Capacitance (Ccb) | 33 pF – 40 pF |
All Hitachi 2SA1031 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What applications are the 2SA1031 and 2SA1032 transistors suited for?
They are intended for low‑frequency, low‑noise amplifier circuits and can be used as a complementary pair with 2SC458 or 2SC2310 transistors.
Can these transistors be used in medical equipment?
No. Hitachi’s products are not authorized for medical applications without written consent from the appropriate Hitachi sales officer.
What is the maximum collector power dissipation?
The maximum collector power dissipation is 300 mW.
What are the recommended storage temperature limits?
The device can be stored from –55 °C to +150 °C.