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Part Details for MJE340 by SPC Multicomp
Results Overview of MJE340 by SPC Multicomp
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (2 replacements)
- Tariff Estimator: (Not Available)
- Number of Functional Equivalents: (8 options)
- CAD Models: (Available)
- 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.
Applications
Energy and Power Systems
Transportation and Logistics
Renewable Energy
Automotive
MJE340 Information
MJE340 by SPC Multicomp is a Power Bipolar Transistor.
Power 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 MJE340
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
08N8075
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Newark | Transistor, Bipolar, Npn, 300V, 500Ma, To-126-3, Transistor Polarity:Npn, Collector Emitter Voltage Max:300V, Continuous Collector Current:500Ma, Power Dissipation:20W, Transistor Mounting:Through Hole, No. Of Pins:3Pins, Msl:- Rohs Compliant: Yes |Multicomp Pro MJE340 RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk | 200 |
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$0.2060 / $0.5160 | Buy Now |
Part Details for MJE340
MJE340 CAD Models
MJE340 Part Data Attributes
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MJE340
SPC Multicomp
Buy Now
Datasheet
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Compare Parts:
MJE340
SPC Multicomp
Power Bipolar Transistor,
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| Part Life Cycle Code | Active | |
| Reach Compliance Code | Unknown | |
| ECCN Code | EAR99 | |
| Collector Current-Max (IC) | 0.5 A | |
| Collector-Emitter Voltage-Max | 300 V | |
| Configuration | Single | |
| DC Current Gain-Min (hFE) | 30 | |
| JEDEC-95 Code | TO-126 | |
| JESD-30 Code | R-PSFM-T3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Operating Temperature-Min | -65 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Shape | Rectangular | |
| Package Style | Flange Mount | |
| Polarity/Channel Type | Npn | |
| Surface Mount | No | |
| Terminal Form | Through-Hole | |
| Terminal Position | Single | |
| Transistor Element Material | Silicon |
Alternate Parts for MJE340
This table gives cross-reference parts and alternative options found for MJE340. 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 MJE340, 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.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| MJE340 | General Transistor Corp | Check for Price | Power Bipolar Transistor, 0.5A I(C), NPN | MJE340 vs MJE340 |
| MJE340 | Advanced Semiconductor Inc | Check for Price | Power Bipolar Transistor, 0.5A I(C), 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin | MJE340 vs MJE340 |
MJE340 Frequently Asked Questions (FAQ)
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The MJE340 can operate safely between -55°C to 150°C, but the recommended operating temperature range is -40°C to 125°C for optimal performance and reliability.
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To ensure proper biasing, set the base-emitter voltage (Vbe) between 0.6V to 0.8V, and the collector-emitter voltage (Vce) between 1V to 10V, depending on the specific application requirements.
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The maximum collector current rating for the MJE340 is 500mA, but it's recommended to derate the current to 300mA or less for reliable operation and to prevent overheating.
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Yes, the MJE340 can be used as a switch in digital circuits, but it's not recommended due to its relatively slow switching time (around 10μs) and high saturation voltage (around 0.5V). A faster-switching transistor like the 2N3904 or 2N2222 might be a better choice for digital switching applications.
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To prevent thermal runaway, ensure proper heat sinking, use a heat sink with a thermal resistance of 10°C/W or less, and maintain a safe operating temperature range. Additionally, consider using a thermal protection circuit or a current limiter to prevent excessive current flow.