MMBTA42 STMicroelectronics Transistor BJT NPN (SOT23 (3-Pin)) In Stock
MMBTA42 is a single NPN high-voltage bipolar transistor rated for 300 V collector-emitter voltage and 500 mA collector current in a 3-pin SOT-23 package. From $0.08, in stock worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- MMBTA42 Datasheet PDF
- Category
- Transistor BJT NPN
- Price
- From $0.0258(MOQ 100)
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MMBTA42?
- 300 V maximum collector-emitter voltage
- 500 mA maximum collector current (IC)
- Minimum DC current gain (hFE) of 40
- Single NPN transistor element
- 3-pin SOT-23 surface-mount package
- Plastic/epoxy body construction
What is MMBTA42 used for?
The MMBTA42 is used in high-voltage switching and driving circuits such as CRT and display drivers, relay drivers, and small signal amplification stages. Its 300 V breakdown rating and compact SOT-23 package make it suitable for space-constrained boards that need a low-cost, high-voltage NPN transistor.
What are the specifications of MMBTA42?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Collector Current-Max (IC) | 0.5A |
| Collector-Emitter Voltage-Max | 300V |
| Configuration | SINGLE |
| DC Current Gain-Min (hFE) | 40 |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | NPN |
| Power Dissipation-Max (Abs) | 0.35W |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Transition Frequency-Nom (fT) | 50MHz |
| ## MMBTA42 Alternates Showing results | Image |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
Where can I find the MMBTA42 datasheet?
MMBTA42 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for MMBTA42?
Compatible alternatives and drop-in replacements for MMBTA42:
onsemi Small Signal Bipolar Transistor, 0.5A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-236AB
suggested
suggested
suggested
suggested
Frequently Asked Questions
What is the maximum collector-emitter voltage of the MMBTA42?
The MMBTA42 has a maximum collector-emitter voltage (VCEO) of 300 V and a maximum collector current (IC) of 500 mA, making it suitable for high-voltage switching circuits with modest current demands.
How is the MMBTA42 housed for surface-mount assembly?
The MMBTA42 comes in a 3-pin SOT-23 package with a plastic/epoxy body, a compact surface-mount format that supports its 300 V rating while saving board space on high-density PCB layouts.
What DC current gain can designers expect from the MMBTA42?
Designers can expect a minimum DC current gain (hFE) of 40 from the MMBTA42, which combined with its 300 V rating makes it a practical choice for high-voltage small-signal switching and amplifier applications.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.0424 | $4.24 |
| 500+ | $0.0305 | $15.25 |
| 1000+ | $0.0266 | $26.63 |
| 30000+ | $0.0258 | $772.80 |
In Stock · 24h Response · Worldwide Shipping
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