SMA4F188AY The STMicroelectronics SMA4F188AY is a Zener TVS Diode designed for automotive applications. It offers 400W of power handling and a 328V standoff voltage.
Mfr Part #:

SMA4F188AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics SMA4F188AY is a Zener TVS Diode designed for automotive applications. It offers 400W of power handling and a 328V standoff voltage.
Total Stock: 10,000 pcs
$ Price Range: $0.55

SMA4F188AY Available from 1 distributor

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SMA4F188AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Lead Style
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Supplier Package
Type
Unidirectional Channels
Voltage

SMA4F188AY Description

Short technical summary and product information.

The STMicroelectronics SMA4F188AY is a Zener type Transient Voltage Suppressor (TVS) diode. It is specifically designed for demanding automotive applications, providing robust protection.

 

This TVS diode features a high power rating of 400W and a standoff voltage of 328V. It can handle a current of 1.4A and is suitable for power line protection, although it is not exclusively designed for this purpose. The device operates within a wide temperature range of -55°C to 175°C (TJ).

 

Packaged in a DO-221AC, SMA Flat Leads (SMAflat) format, the SMA4F188AY is designed for surface mount installation. Its unidirectional channel configuration makes it suitable for various protection needs within automotive electronic systems.

SMA4F188AY Quick Information

Product Type: TVS Diode
Series: SMA4F
Canonical Name: SMA4F188AY TVS Diode
Subcategory: TVS Diodes

SMA4F188AY Compliance

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

SMA4F188AY Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

SMA4F188AY Features

  • 400W peak pulse power rating.
  • 328V standoff voltage.
  • 1.4A peak pulse current.
  • Automotive application qualified.
  • Surface mount SMAflat package.

SMA4F188AY Applications

  • Used in automotive transient voltage suppression
  • Protects sensitive electronics from voltage spikes
  • Suitable for surface mount automotive applications
  • Clamps overvoltage in 328V automotive circuits

SMA4F188AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the SMA4F188AY?

The SMA4F188AY has a 328V clamping voltage.

What is the current rating of the SMA4F188AY?

The SMA4F188AY is rated for 1.4A current.

What is the power rating of the SMA4F188AY?

The SMA4F188AY has a 400W power rating.

What package is the SMA4F188AY available in?

The SMA4F188AY is available in a DO-221AC surface-mount package with SMA flat leads (SMAflat).

What is the operating temperature range of the SMA4F188AY?

The SMA4F188AY operates from -55°C to 175°C junction temperature.

Is the SMA4F188AY suitable for automotive applications?

Yes, the SMA4F188AY is specified for automotive applications.

Is the SMA4F188AY unidirectional or bidirectional?

The SMA4F188AY has one unidirectional channel.

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