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STMicroelectronics · Discrete semiconductors

MMBTA42

TRANS NPN 300V 0.5A SOT23-3

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MMBTA42 component illustration
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MMBTA42 specifications

Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.

ManufacturerSTMicroelectronics
Ordering codeMMBTA42
FamilyDiscrete semiconductors
PackageTO-236-3, SC-59, SOT-23-3
Product StatusObsolete
Transistor TypeNPN
Current - Collector (Ic) (Max)100 mA
Voltage - Collector Emitter Breakdown (Max)300 V
Vce Saturation (Max) @ Ib, Ic200mV @ 2mA, 20mA
Current - Collector Cutoff (Max)250nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce60 @ 1mA, 10V
Power - Max350 mW
Frequency - Transition50MHz
Operating Temperature-65°C ~ 150°C (TJ)
Mounting TypeSurface Mount
Package / CaseTO-236-3, SC-59, SOT-23-3
Supplier Device PackageSOT-23

Documents and evidence

MMBTA42 ↗

Catalog sources

www.ic-components.com · MMBTA42 ↗

Source directory identity match; source detail pending. Specifications remain from existing catalog.

Before sourcing MMBTA42

  1. Identify the firmware and board baseline
  2. Check flash, RAM and required peripherals
  3. Review pin assignment and supply limits
  4. Keep the full temperature and package suffix
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Questions about MMBTA42

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