Discover SLKOR MMBTA42: The High-Performance Alternative to ST/Onsemi's MMBTA42 NPN Transistor - Elevate Your Designs!

 SLKOR offers an alternative replacement — the MMBTA42 — a 300V, 0.3A NPN bipolar transistor that serves as a direct substitute for the STMicroelectronics/Onsemi MMBTA42.

Type:PNP

Vceo:300V

Ic:0.3A

Pd:0.35W

fT:50MHz

Description:
 The MMBTA42 is a PNP bipolar junction transistor (BJT) engineered for reliable, high-performance operation in a wide range of electronic applications. Housed in a compact SOT-23 package, it offers a collector-emitter voltage (VCEO) of up to 300V, supports a continuous collector current (IC) of 0.3A, and handles power dissipation (PD) up to 0.35W. With a transition frequency (fT) of 50MHz, it is ideal for efficient switching and moderate-frequency amplification.

Features:

  • High breakdown voltage
  • Low collector-emitter saturation voltage
  • Complementary to MMBTA92 (PNP)

Applications:
 The MMBTA42 is suitable for various electronic applications, including:

  • Switching: Low-to-medium power circuits requiring efficient current control
  • Voltage Regulation: Ensuring stable power supply outputs in consumer electronics and industrial equipment
  • Audio Amplification: Driving low-to-moderate power audio and signal amplification circuits
  • Power Management: Reliable performance in DC-DC converters and power supply units

Maximum Ratings (Ta = 25℃ unless otherwise specified):

  • VCBO (Collector-Base Voltage): 300V
  • VCEO (Collector-Emitter Voltage): 300V
  • VEBO (Emitter-Base Voltage): 5V
  • IC (Collector Current, Continuous): 0.3A

Slkor Alternative Equivalents to STMicroelectronics

| STMicroelectronics Part Number | Slkor Part Number | Product Category | Package |

| BTA06–800BWRG | BTA06–800B | SCR | TO-220 |
| BTA08–800BWRG | BTA08–800B | SCR | TO-220 |
| BTA12–600BWRG | BTA12–600B | SCR | TO-220 |
| BTA16–800BWRG | BTA16–800B | SCR | TO-220 |
| BTA24–800BWRG | BTA24–800B | SCR | TO-220 |
| BTA26–800BWRG | BTA26–800B | SCR | TO-3P |
| BTA41–800BRG | BTA41–800B | SCR | TO-3P |
| BTA41–1200BRG | BTA41–1200B | SCR | TO-3P |
| ZMM5V1 | ZMM5V1 | Zener Diode | LL-34 |
| TIP122 | TIP122 | Darlington Array | TO-220 |
| TIP127 | TIP127 | Darlington Array | TO-220 |
| ULN2001D1013TR | ULN2001D | Darlington Array | SOP-16 |
| L4949 | SL4949 | Linear Regulator | SOP-8 |
| LM317T-DGZ | LM317 | Linear Regulator | TO-220 |
| LMV321ILT | LMV321 | Op-amp | SOT-23–5 |
| M24C02-WMN6TP | SL24C02D | EEPROM | SOP-8 |
| MMBTA42 | MMBTA42 | Transistor | SOT-23 |
| MMBT4401 | MMBT4401 | Transistor | SOT-23 |
| MMBT5551 | MMBT5551 | Transistor | SOT-23 |
| MMBT5401 | MMBT5401 | Transistor | SOT-23 |
| MMBT3904 | MMBT3904 | Transistor | SOT-23 |
| MMBT3906 | MMBT3906 | Transistor | SOT-23 |
| MMBT2222A | MMBT2222A | Transistor | SOT-23 |
| D44H11 | SL44H11 | Transistor | TO-220–3L |

For more equivalents please reach out: Slkor03@slkormicro.com

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