Part Details for FMB3946 by Fairchild Semiconductor Corporation
Results Overview of FMB3946 by Fairchild Semiconductor Corporation
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (4 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.
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FMB3946 Information
FMB3946 by Fairchild Semiconductor Corporation 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 FMB3946
| Part # | Distributor | Description | Stock | Price | Buy | |
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Vyrian | Transistors | 27647 |
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RFQ |
Part Details for FMB3946
FMB3946 CAD Models
FMB3946 Part Data Attributes
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FMB3946
Fairchild Semiconductor Corporation
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Datasheet
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FMB3946
Fairchild Semiconductor Corporation
Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 2-Element, NPN and PNP, Silicon, SUPERSOT-6
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | FAIRCHILD SEMICONDUCTOR CORP | |
| Part Package Code | SSOT | |
| Package Description | SUPERSOT-6 | |
| Pin Count | 6 | |
| Manufacturer Package Code | 6LD, SUPERSOT6, JEDEC MO-193, 1.6MM WIDE | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.29.00.95 | |
| Collector Current-Max (IC) | 0.2 A | |
| Collector-Emitter Voltage-Max | 40 V | |
| Configuration | SEPARATE, 2 ELEMENTS | |
| DC Current Gain-Min (hFE) | 30 | |
| JESD-30 Code | R-PDSO-G6 | |
| JESD-609 Code | e3 | |
| Moisture Sensitivity Level | 1 | |
| Number of Elements | 2 | |
| Number of Terminals | 6 | |
| 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 AND PNP | |
| Qualification Status | Not Qualified | |
| Surface Mount | YES | |
| Terminal Finish | MATTE TIN | |
| 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) | 200 MHz | |
| Turn-off Time-Max (toff) | 190 ns | |
| Turn-on Time-Max (ton) | 38 ns |
Alternate Parts for FMB3946
This table gives cross-reference parts and alternative options found for FMB3946. 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 FMB3946, 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 |
|---|---|---|---|---|
| FMB3946D84Z | Fairchild Semiconductor Corporation | Check for Price | Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 2-Element, NPN and PNP, Silicon, SUPERSOT-6 | FMB3946 vs FMB3946D84Z |
| FMB3946S62Z | Fairchild Semiconductor Corporation | Check for Price | Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 2-Element, NPN and PNP, Silicon, SUPERSOT-6 | FMB3946 vs FMB3946S62Z |
| FMB3946D87Z | Fairchild Semiconductor Corporation | Check for Price | Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 2-Element, NPN and PNP, Silicon, SUPERSOT-6 | FMB3946 vs FMB3946D87Z |
| FMB3946L99Z | Fairchild Semiconductor Corporation | Check for Price | Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 2-Element, NPN and PNP, Silicon, SUPERSOT-6 | FMB3946 vs FMB3946L99Z |
FMB3946 Frequently Asked Questions (FAQ)
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A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Keep the thermal path short and use a thermal pad to connect the device to the PCB.
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Use a heat sink, ensure good airflow, and follow the recommended thermal design guidelines. Also, consider using a thermal interface material to improve heat transfer.
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The maximum allowed voltage on the enable pin (EN) is 6V. Exceeding this voltage may damage the device.
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Yes, but ensure the device is properly heat-sinked and the current rating is not exceeded. Also, consider using a current sense resistor to monitor the current.
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Check the input voltage, output voltage, and current. Verify the enable pin (EN) is properly biased. Use an oscilloscope to check for oscillations or noise. Consult the datasheet and application notes for guidance.