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Part Details for TIP121 by SPC Multicomp
Results Overview of TIP121 by SPC Multicomp
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (1 replacement)
- Tariff Estimator: (Not Available)
- Number of Functional Equivalents: (6 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.
TIP121 Information
TIP121 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 TIP121
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
78M7067
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Newark | Bipolar Transistor, Npn, 80V, Transistor Polarity:Npn, Collector Emitter Voltage V(Br)Ceo:80V, Transition Frequency Ft:-, Power Dissipation Pd:65W, Dc Collector Current:5A, Dc Current Gain Hfe:1000Hfe, No. Of Pins:3Pins, Msl:- Rohs Compliant: Yes |Multicomp Pro TIP121 RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 6854 |
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$0.2950 / $0.8080 | Buy Now |
Part Details for TIP121
TIP121 CAD Models
TIP121 Part Data Attributes
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TIP121
SPC Multicomp
Buy Now
Datasheet
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Compare Parts:
TIP121
SPC Multicomp
Power Bipolar Transistor, 5A I(C), 80V V(BR)CEO, 2-Element, NPN, Silicon, TO-220AB, Plastic/Epoxy, 3 Pin
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Package Description | To-220, 3 Pin | |
| Reach Compliance Code | Unknown | |
| ECCN Code | EAR99 | |
| Case Connection | Collector | |
| Collector Current-Max (IC) | 5 A | |
| Collector-Emitter Voltage-Max | 80 V | |
| Configuration | Darlington With Built-In Diode And Resistor | |
| DC Current Gain-Min (hFE) | 1000 | |
| JEDEC-95 Code | TO-220AB | |
| JESD-30 Code | R-PSFM-T3 | |
| Number of Elements | 2 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Shape | Rectangular | |
| Package Style | Flange Mount | |
| Polarity/Channel Type | Npn | |
| Power Dissipation-Max (Abs) | 65 W | |
| Surface Mount | No | |
| Terminal Form | Through-Hole | |
| Terminal Position | Single | |
| Transistor Application | Amplifier | |
| Transistor Element Material | Silicon |
Alternate Parts for TIP121
This table gives cross-reference parts and alternative options found for TIP121. 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 TIP121, 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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| TIP121BD | onsemi | Check for Price | Power Bipolar Transistor, 5A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, Plastic/Epoxy, 3 Pin | TIP121 vs TIP121BD |
TIP121 Frequently Asked Questions (FAQ)
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The maximum collector current for each transistor in the TIP121 is 500mA, making it suitable for low-to-medium power applications.
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No, the TIP121 is not suitable for high-voltage applications. The maximum collector-emitter voltage is 50V, and the maximum collector-base voltage is 60V. Exceeding these ratings can damage the device.
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To ensure the TIP121 operates within its SOA, you should ensure that the collector current, collector-emitter voltage, and power dissipation are within the specified limits. You should also provide adequate heat sinking to prevent overheating.
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While the TIP121 can be used as a linear amplifier, it's not the most suitable device for this application. The device has a relatively high saturation voltage (around 2V) and a low current gain (around 1000), which can affect the amplifier's performance.
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To protect the TIP121 from ESD, you should handle the device with anti-static precautions, such as using an anti-static wrist strap or mat. You should also ensure that the device is stored in an anti-static package or bag.