2SA1405E

Single Bipolar Transistors Overview

The onsemi 2SA1405E is a PNP silicon epitaxial planar transistor designed for high-frequency video output applications. It features a high transition frequency (fT) of approximately 500 MHz and a collector-emitter breakdown voltage (VCEO) of at least 120 V. The device exhibits low reverse transfer capacitance, typically 3.8 pF, ensuring excellent high-frequency characteristics. Manufactured using FBET process technology, it serves as the complementary pair to the 2SC3599 NPN transistor in ultrahigh-definition CRT display systems.

Single Bipolar Transistors Feature Summary

• High transition frequency suitable for wide-band amplification
• Low reverse transfer capacitance for superior high-frequency performance
• Complementary pairing with 2SC3599 for balanced circuit design

Single Bipolar Transistors Applications

• Ultrahigh-definition CRT display video output stages
• Color TV chroma signal processing circuits
• Wide-band amplifier modules

Single Bipolar Transistors Procurement Notes

Verify the manufacturer origin carefully, as the 2SA1405 series was originally developed by Sanyo Semicon Device. Confirm that the specific 2SA1405E variant supplied by onsemi matches the original electrical specifications and pinout compatibility required for your existing design. Ensure the component status is active for new production designs.

Single Bipolar Transistors Selection Notes

Select this component when designing video output stages requiring high-speed switching and low capacitance. It is specifically optimized for CRT display applications where signal integrity at high frequencies is critical. Consider its complementary relationship with the 2SC3599 NPN transistor for push-pull configurations in color television chroma outputs.

Single Bipolar Transistors Part Context

This part belongs to the family of high-frequency PNP transistors utilized in analog video processing. It is distinct from general-purpose switching transistors due to its specialized optimization for bandwidth and capacitance control in display driver circuits. The device represents legacy technology adapted for continued use in specific industrial and consumer electronics maintenance markets.

Single Bipolar Transistors Replacement Considerations

The 2SC3599 is the designated complementary NPN counterpart. Direct substitutes may include other high-frequency PNP transistors with similar fT and VCEO ratings, though exact pin-for-pin replacements require verification against the original Sanyo datasheet specifications.