| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| PMBTA42/DG | Nexperia | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-236AB | SO642 vs PMBTA42/DG |
| PMBTA42/DG | NXP Semiconductors | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-236AB | SO642 vs PMBTA42/DG |
| PMBTA42T/R | NXP Semiconductors | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-236AB | SO642 vs PMBTA42T/R |
Part Details for SO642 by STMicroelectronics
Results Overview of SO642 by STMicroelectronics
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (3 replacements)
- Tariff Estimator: (Not Available)
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
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SO642 Information
SO642 by STMicroelectronics is a Small Signal Bipolar Transistor.
Small Signal Bipolar Transistors are under the broader part category of Transistors.
A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.
Price & Stock for SO642
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
497-4650-2-ND
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DigiKey | TRANS NPN 300V 0.1A SOT-23-3 Min Qty: 18000 Container: Tape & Reel |
0 Tape & Reel |
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$0.0382 / $0.0487 | Buy Now |
|
|
Vyrian | Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon | 8189 |
|
RFQ |
SO642 Part Data Attributes
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SO642
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
SO642
STMicroelectronics
Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Package Description | Sot-23, 3 Pin | |
| ECCN Code | EAR99 | |
| Collector Current-Max (IC) | 0.1 A | |
| Collector-Emitter Voltage-Max | 300 V | |
| Configuration | Single | |
| DC Current Gain-Min (hFE) | 40 | |
| JESD-30 Code | R-PDSO-G3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Peak Reflow Temperature (Cel) | Not Specified | |
| Polarity/Channel Type | Npn | |
| Power Dissipation-Max (Abs) | 0.31 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | Yes | |
| Terminal Form | Gull Wing | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | Not Specified | |
| Transistor Application | Switching | |
| Transistor Element Material | Silicon | |
| Transition Frequency-Nom (fT) | 50 Mhz |
Alternate Parts for SO642
This table gives cross-reference parts and alternative options found for SO642. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SO642, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
SO642 Frequently Asked Questions (FAQ)
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The recommended operating voltage range for the SO642 is 2.7V to 5.5V, with a typical voltage of 3.3V.
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To ensure proper power-on and power-off, it's recommended to follow a power-up sequence: VCC first, then EN (enable) pin, and finally the input signals. For power-down, reverse the sequence.
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The SO642 supports data transfer rates up to 100 Mbps.
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To ensure ESD protection, it's recommended to use a TVS (Transient Voltage Suppressor) diode or a dedicated ESD protection device, such as the ST's ESDAxx series, on the input lines.
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For optimal performance, it's recommended to follow a star-connection layout, with the SO642 at the center, and to keep the input and output traces as short as possible, with a 50-ohm impedance matching.