Part Details for 2SC4081 by ROHM Semiconductor
Results Overview of 2SC4081 by ROHM Semiconductor
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (9 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- 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.
2SC4081 Information
2SC4081 by ROHM Semiconductor 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 2SC4081
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 14000 |
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RFQ | ||
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ComSIT USA | UMT TYPE PRE AMP Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon ECCN: EAR99 RoHS: Not Compliant |
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RFQ | |
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NexGen Digital | 3000 |
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RFQ |
Part Details for 2SC4081
2SC4081 CAD Models
2SC4081 Part Data Attributes
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2SC4081
ROHM Semiconductor
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Datasheet
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2SC4081
ROHM Semiconductor
Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon,
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Not Recommended | |
| Ihs Manufacturer | ROHM CO LTD | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| Samacsys Manufacturer | ROHM Semiconductor | |
| Collector Current-Max (IC) | 0.15 A | |
| Collector-Emitter Voltage-Max | 50 V | |
| Configuration | SINGLE | |
| DC Current Gain-Min (hFE) | 120 | |
| JESD-30 Code | R-PDSO-G3 | |
| JESD-609 Code | e1 | |
| Moisture Sensitivity Level | 1 | |
| 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) | 260 | |
| Polarity/Channel Type | NPN | |
| Power Dissipation-Max (Abs) | 0.2 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | YES | |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) | |
| Terminal Form | GULL WING | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Transistor Application | AMPLIFIER | |
| Transistor Element Material | SILICON |
Alternate Parts for 2SC4081
This table gives cross-reference parts and alternative options found for 2SC4081. 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 2SC4081, 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 |
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| 2SC4081T106 | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon, UMT3, SC-70, 3 PIN | 2SC4081 vs 2SC4081T106 |
| 2SC4081T107 | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon | 2SC4081 vs 2SC4081T107 |
| 2SC4081T107/QR | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon | 2SC4081 vs 2SC4081T107/QR |
| 2SC4081T106QR | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.1A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon, | 2SC4081 vs 2SC4081T106QR |
| MMBT1815-TP | Micro Commercial Components | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon, SOT-23, 3 PIN | 2SC4081 vs MMBT1815-TP |
| 2SC4081U3T106Q | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, | 2SC4081 vs 2SC4081U3T106Q |
| 2SC4081Q | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon, | 2SC4081 vs 2SC4081Q |
| 2SC4081T107/QS | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, 0.15A I(C), 50V V(BR)CEO, 1-Element, NPN, Silicon | 2SC4081 vs 2SC4081T107/QS |
| 2SC4081U3T106 | ROHM Semiconductor | Check for Price | Small Signal Bipolar Transistor, | 2SC4081 vs 2SC4081U3T106 |
2SC4081 Frequently Asked Questions (FAQ)
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The maximum safe operating area (SOA) for the 2SC4081 is not explicitly stated in the datasheet. However, ROHM Semiconductor recommends following the general guidelines for SOA calculation, taking into account the device's voltage and current ratings, as well as the application's specific requirements.
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To ensure proper biasing, follow the recommended operating conditions and biasing circuits provided in the datasheet. Additionally, consider the application's specific requirements, such as the desired output power, frequency, and impedance matching. It's also recommended to consult ROHM Semiconductor's application notes and design guides for more detailed information.
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The thermal resistance (Rth) of the 2SC4081 package is not explicitly stated in the datasheet. However, ROHM Semiconductor provides a thermal resistance value of 150°C/W for the TO-220 package, which is the typical package type for the 2SC4081. This value can be used as a reference for thermal design and heat sink selection.
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Yes, the 2SC4081 can be used in switching regulator applications. However, it's essential to ensure that the device is operated within its recommended switching frequency range (typically up to 100 kHz) and that the application's specific requirements, such as voltage and current ratings, are met. Additionally, consider the device's switching characteristics, such as rise and fall times, and ensure that the application's design takes these into account.
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ROHM Semiconductor recommends following standard ESD protection guidelines, such as using ESD-sensitive device handling procedures, and incorporating ESD protection circuits or devices in the application's design. The 2SC4081 has a human body model (HBM) ESD rating of 2 kV, which provides some level of protection against ESD events.