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SMM4F18A-TR TVS diode from STMicroelectronics with 18V reverse standoff voltage, 39.3V clamping voltage, and 400W peak pulse power. Surface mount package DO-222AA.
Mfr Part #:

SMM4F18A-TR

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
TVS diode from STMicroelectronics with 18V reverse standoff voltage, 39.3V clamping voltage, and 400W peak pulse power. Surface mount package DO-222AA.
✓ Total Stock: 39,566 pcs

SMM4F18A-TR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
36,000 pcs
On Request
36000 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,566 pcs
On Request
3566 pcs On Request 1 On Request On Request On Request On Request On Request
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SMM4F18A-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
Type
Unidirectional Channels
Voltage
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SMM4F18A-TR Description

Short technical summary and product information.

The SMM4F18A-TR is a unidirectional TVS diode designed for general purpose circuit protection. It features an 18V reverse standoff voltage and a maximum clamping voltage of 39.3V. With a peak pulse power rating of 400W (8/20µs waveform) and a peak pulse current of 59A, it provides robust transient voltage suppression. The device is surface mount packaged in a DO-222AA case (supplier package DO222-AA) and operates over a temperature range of -55°C to 175°C. It is RoHS3 compliant and has an MSL of 1 (unlimited). This component is suitable for protecting sensitive electronics from voltage spikes in a variety of applications.

SMM4F18A-TR Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SMM4F18A-TR TVS Diode, 18V Reverse Standoff, 39.3V Clamping, DO-222AA
Subcategory: Unidirectional TVS

SMM4F18A-TR Compliance

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

SMM4F18A-TR Features

  • Unidirectional TVS diode for transient protection.
  • 18V reverse standoff voltage rating.
  • 39.3V maximum clamping voltage.
  • 400W peak pulse power capability.
  • Surface mount DO-222AA package.

SMM4F18A-TR Applications

  • General purpose circuit protection applications.
  • Surface mount design for compact layouts.

SMM4F18A-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMM4F18A-TR?

18 V.

What is the maximum clamping voltage?

39.3 V.

What is the peak pulse current rating?

59 A (8/20 µs).

What package is the SMM4F18A-TR available in?

DO-222AA surface mount package.

What is the peak pulse power rating?

400 W.

What is the operating temperature range?

-55°C to 175°C.

Is the SMM4F18A-TR unidirectional?

Yes, it has 1 unidirectional channel.

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