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SMM4F20A-TR The STMicroelectronics SMM4F20A-TR is a TVS Diode with a 20V standoff voltage and 42.8V clamping voltage. It offers 400W of peak pulse power and is designed for general purpose applications.
Mfr Part #:

SMM4F20A-TR

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics SMM4F20A-TR is a TVS Diode with a 20V standoff voltage and 42.8V clamping voltage. It offers 400W of peak pulse power and is designed for general purpose applications.
✓ Total Stock: 200 pcs
$ Price Range: $0.55

SMM4F20A-TR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
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Flip Electronics ✓
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200 pcs
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SMM4F20A-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Supplier Package
Type
Unidirectional Channels
Voltage
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SMM4F20A-TR Description

Short technical summary and product information.

The STMicroelectronics SMM4F20A-TR is a transient voltage suppressor (TVS) diode designed for circuit protection. It features a 20V standoff voltage and a clamping voltage of 42.8V at a peak pulse current of 54A (8/20µs waveform).

 

This device offers 400W of peak pulse power dissipation, making it suitable for general-purpose applications requiring protection against voltage transients. It operates within a wide temperature range of -55°C to 175°C (TJ).

 

The TVS diode is housed in a Surface Mount package, specifically the DO-222AA (STmite Flat) configuration, facilitating easy integration into printed circuit boards. It is a unidirectional device with one channel.

 

Compliance information indicates RoHS3 compliance and an MSL 1 rating, suggesting it is suitable for standard manufacturing processes. REACH status is listed as unaffected.

SMM4F20A-TR Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SMM4F20A-TR TVS Diode
Subcategory: TVS - Diodes

SMM4F20A-TR Compliance

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

SMM4F20A-TR Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

SMM4F20A-TR Features

  • 20V standoff voltage rating.
  • 42.8V clamping voltage at 54A.
  • 400W peak pulse power capability.
  • Wide -55°C to 175°C operating temperature.
  • Surface mount DO-222AA package.

SMM4F20A-TR Applications

  • Protects 20V power rails from transients.
  • Used in general purpose circuit protection.
  • Suitable for consumer electronics designs.
  • Ideal for industrial control systems.

SMM4F20A-TR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SMM4F20A-TR?

The standoff voltage is 20V.

What is the clamping voltage of this TVS diode?

The clamping voltage is 42.8V at 54A (8/20µs).

What is the peak pulse current rating?

The peak pulse current is 54A (8/20µs waveform).

What package does the SMM4F20A-TR come in?

It comes in a DO-222AA (STmite Flat) surface mount package.

What is the operating temperature range?

The operating temperature range is -55°C to 175°C (junction temperature).

Is this a unidirectional or bidirectional TVS diode?

It is a unidirectional Zener TVS diode with 1 channel.

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