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TIP121 The TIP121 is an NPN Power Darlington Transistor from SEC in a TO-220 package. It is designed for power linear and switching applications.
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TIP121

Available from 1 distributors
Mfr Name: SEC
SEC
The TIP121 is an NPN Power Darlington Transistor from SEC in a TO-220 package. It is designed for power linear and switching applications.
✓ Total Stock: 10 pcs
$ Price Range: $1.17

TIP121 Available from 1 distributor

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✓ Non-Authorised
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TIP121 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TIP121 Description

Short technical summary and product information.

The TIP121 is a silicon Epitaxial-Base NPN power transistor featuring a monolithic Darlington configuration. It is housed in a standard Jedec TO-220 plastic package, making it suitable for through-hole mounting.

 

This transistor is engineered for power linear and switching applications, offering a collector current capability of up to 5A and a collector-emitter voltage of 80V. It has a typical power dissipation of 65mW and a high current gain (hFE) of 1000 at 500mA.

 

Key specifications include a maximum collector current of 5A and a maximum collector-emitter voltage of 80V. The TIP121 is a complementary silicon transistor, suitable for various power applications where robust performance is required.

TIP121 Quick Information

Product Type: NPN Power Darlington Transistor
Canonical Name: TIP121 NPN Power Darlington Transistor
Subcategory: Bipolar (BJT) - Single, Pre-Biased

TIP121 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TIP121 Estimated Pricing

Qty Low High
1+ $1.17 $1.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

TIP121 Features

  • NPN Power Darlington Transistor
  • Collector Current Capability 5A
  • Collector Emitter Voltage 80V
  • TO-220 Package
  • Suitable for power linear and switching

TIP121 Applications

  • Power linear applications
  • Power switching applications
  • General purpose amplification
  • High current gain circuits

TIP121 FAQs

4 frequently asked questions generated from this part’s specifications.
What is the maximum collector current for the TIP121 transistor?

The maximum collector current for the TIP121 transistor is 5A.

What is the maximum collector-emitter voltage of the TIP121 transistor?

The maximum collector-emitter voltage for the TIP121 transistor is 80V.

What package type is the TIP121 transistor supplied in?

The TIP121 transistor is supplied in a TO-220 package.

What is the typical hFE of the TIP121 transistor at 500mA?

The typical hFE of the TIP121 transistor at 500mA is 1000.

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