1SMA40AT3G 1SMA40AT3G is a 400W unidirectional TVS diode from Littelfuse Inc. with a working peak reverse voltage of 40V and clamping voltage of 64.5V.
Mfr Part #:

1SMA40AT3G

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
1SMA40AT3G is a 400W unidirectional TVS diode from Littelfuse Inc. with a working peak reverse voltage of 40V and clamping voltage of 64.5V.
Total Stock: 30,000 pcs

1SMA40AT3G Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
30,000 pcs
30000 pcs On Request 1 On Request On Request On Request On Request On Request

1SMA40AT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Capacitance @ Frequency
Clamping Voltage
Current
Halogen Free
Industrial Grade
Lead Spacing
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Package / Case
Peak Pulse Current
Peak Pulse Power
Polarity
Power
Power Line Protection
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
Working Peak Reverse Voltage

1SMA40AT3G Description

Short technical summary and product information.

The 1SMA40AT3G is a unidirectional TVS (transient voltage suppression) diode from Littelfuse Inc., designed to protect sensitive electronic circuits from high voltage transients. It features a working peak reverse voltage of 40V and a clamping voltage of 64.5V, with a peak pulse power dissipation of 400W (1ms pulse). The device can handle a peak pulse current of 6.2A and has a capacitance of 315pF at 1MHz.

 

This TVS diode is housed in a surface-mount DO-214AC (SMA) package, suitable for automated assembly. It operates over a wide temperature range of -65°C to 150°C. The part is intended for general-purpose applications and does not include power line protection.

 

Design engineers should note that the datasheet provided for this part number is incorrect (references the 1SMA10CAT3G series). Key electrical parameters such as breakdown voltage, reverse leakage current, and test current are not available from the current data sources. Verification of specifications from the manufacturer is recommended.

1SMA40AT3G Quick Information

Product Type: TVS Diode
Series: 1SMA10CAT3G Series
Canonical Name: 1SMA40AT3G Littelfuse Inc. TVS Diode, 400W, Unidirectional, SMA
Subcategory: Unidirectional TVS Diode

1SMA40AT3G Compliance

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

1SMA40AT3G Features

  • 400W peak pulse power dissipation.
  • 40V working peak reverse voltage.
  • 64.5V clamping voltage capability.
  • Surface mount SMA package design.
  • -65°C to 150°C operating range.

1SMA40AT3G Applications

  • General purpose transient voltage suppression.
  • Protection for voltage sensitive components.
  • Suitable for communication and industrial systems.

1SMA40AT3G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the working peak reverse voltage of the 1SMA40AT3G?

40 V.

What is the clamping voltage of this TVS diode?

64.5 V.

What is the peak pulse power rating?

400 W.

What package does the 1SMA40AT3G come in?

DO-214AC, SMA (surface mount).

What is the operating temperature range?

-65°C to 150°C.

Is this device RoHS compliant?

RoHS3 Compliant (unverified).

Home
Account

Categories