BTA733A3 is a PNP type integrated circuit produced by CYStek. It has high HFE and good linearity. This chip is suitable for use in the front stage of the audio amplifier and the general amplifier.
The BTA733A3 is a general‑purpose PNP epitaxial planar transistor designed for driver stages of audio‑frequency amplifiers and general amplification, offering high linearity and a Pb‑free TO‑92 package.
The datasheet lists absolute maximum ratings, characteristic curves, gain specifications, and detailed TO‑92 package dimensions, enabling designers to assess suitability for their circuits.
| Collector‑Base Voltage (V_CBO) | -60 V |
|---|---|
| Collector‑Emitter Voltage (V_CEO) | -50 V |
| Emitter‑Base Voltage (V_EBO) | -5 V |
| Collector Current (I_C) | -100 mA |
| Base Current (I_B) | -20 mA |
| Power Dissipation (P_D) | 625 mW |
| Thermal Resistance, Junction‑to‑Ambient (R_θJA) | 200 °C/W |
| Maximum Junction Temperature (T_J) | 150 °C |
| Storage Temperature (T_stg) | -55~+150 °C |
| Current Gain (h_FE) | 135 – 600 |
| Base‑Emitter Voltage (V_BE) | -0.58 – -0.68 V |
| Cut‑off Frequency (f_r) | 100 MHz |
| Collector‑Base Capacitance (C_OB) | 6 pF |
| Component Body Height | 4.33 – 4.83 mm |
| Lead Diameter | 0.36 – 0.53 mm |
| Lead Pitch | 2.40 – 2.90 mm |
| Lead Length After Removal | 11 mm |
| Lead Material | 42 Alloy |
| Mold Compound | Epoxy resin family |
The maximum collector current is 100 mA.
It is supplied in a TO‑92 3‑lead plastic package.
The current gain (hFE) ranges from 135 to 600.