The KSA1220A transistor is a PNP from ON Semiconductors. It is a PNP Power amplifier transistor which is commonly used for high frequency amplification and Audio frequency (AF) amplification. It is commonly used in Class B Amplifier circuits or projects. The Class B amplifiers require a NPN and PNP both transistor to amplify the positive and negative potion of an audio wave. In these circuits the KSA1220A is used as PNP transistor and KSC2690A NPN transistor is used.
KSA1220 Pin Description
Pins detail with descrection is given below in the table
| Pin Number | Pin Name |
Pin Descreption |
| 1 | Emitter | Current Drains out through emitter |
| 2 | Collector | Current flows in through collector |
| 3 | Base | Controls the biasing of transistor |
Characteristics of KSA1220 Transistor
- Package: TO-126
- Type of transistor: PNP
- Max Collector-Emitter Voltage: -120 V
- Max Collector-Base Voltage: -120 V
- Max Emitter-Base Voltage: -5 V
- Collector Dissipation: 20 W
- Collector Current: -1.2 A
- DC Current Gain maximum (hfe): 60 to 320
- Max Transition Frequency: 175 MHz
- Operating and Storage Range: -55 to +150 °C
Complementary NPN transistor
The complementary NPN transistor to the KSA1220 transistor is the KSC2690 hoever you can use any other related transister.
Equivalent Of KSA1220 transistor
the equivalent of KSA1220 transistor are 2SA1021, 2SA1220, 2SA1220A, KSA1220A or 2SB649.
SMD Version of KSA1220-Y transistor
SMD version of the KSA1220-Y transistor is 2SB806 (SOT-89) and 2SD1007 (SOT-89).
Application of KSA1220A Transistor
- Mostly used in Audio Amplifiers
- Portable speakers
- Class B amplifiers designs
2D-Model (TO-126)
Related Transistors
- BC547 NPN Transistor
- BC548 NPN Transistor
- BC549 NPN Transistor
- BC550 NPN Transistor
- BC557 PNP Transitor
- BC558 PNP Tranistor
- KSP2222A NPN TRANSISTOR
- 2SA1943 PNP POWER TRANSISTOR
- TIP32C PNP POWER TRANSISTOR
- BD139 MEDIUM POWER NPN TRANSISTOR
- SS9014 BIPOLAR NPN TRANSISTOR
- S8550 PNP TRANSISTOR
- BC857 PNP TRANSISTOR
- 2SC945 BIPOLAR NPN TRANSISTOR
- BC549 NPN TRANSISTOR
- FGA25N120ANTD 1200V NPT TRENCH IGBT
- KSA1220 PNP TRANSISTOR AMPLIFIER
- 2N6107 PNP POWER TRANSISTOR
- BD136 MEDIUM POWER PNP TRANSISTOR
- 2N2219 NPN TRANSISTOR
- 2N5306 NPN DARLINGTON TRANSISTOR
- PCR406 SENSITIVE GATE THYRISTOR
- 2N5088 NPN TRANSISTOR