Products > Circuit Protection > TVS Diodes > 1SMC33AT3G
  • 1SMC33AT3G

Images are for reference only.


Hot Sale

1500 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - Transient Voltage Suppressors 33V 1500W Unidirectional

  • Package/Case :
  • DO-214AB
  • Product Categories :
  • TVS Diodes - Transient Voltage Suppressors
  • RoHs Status:
  • Rohs
  • In-stock:
  • 225000


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

1SMC33AT3G Product Details

This series will be End of Life (EOL) on December 31, 2017 and is not recommended for new designs. Replacement will be the SMCJ series.

The SMC series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time.The SMC series is supplied in Littelfuse's exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.


  • Standard Zener Breakdown Voltage Range - 6.8 to 91 V
  • Stand-off Voltage Range - 5 to 78 V
  • Peak Power - 1500 Watts @ 1 ms
  • Maximum Clamp Voltage @ Peak Pulse Current
  • Low Leakage < 5 µA Above 10 V
  • UL Recognition
  • Maximum Temperature Coefficient Specified
  • Available in Tape and Reel
  • Response Time Typically < 1 ns
  • CASE: Void-free, transfer-molded, thermosetting plastic
  • FINISH: All external surfaces are corrosion resistant and leads are readily solderable
  • POLARITY: Cathode indicated by molded polarity notch. When operated in zener mode, will be positive with respect to anode
  • LEADS: Modified L-Bend providing more contact area to bond pads
  • WAFER FAB LOCATION: Phoenix, Arizona
  • ASSEMBLY/TEST LOCATION: Seremban, Malaysia
  • Pb-Free Packages are Available
  • SZ Prefix for Automotive and Other

Technical Parameters

  • Polarity
  • Unidirectional
  • Operating Voltage
  • 33 V
  • Breakdown Voltage
  • 36.7 V
  • Clamping Voltage
  • 53.3 V
  • Peak Surge Current
  • 28.1 A
  • Series
  • 1SMC5.0AT3G
  • Package / Case
  • DO-214AB
  • Minimum Operating Temperature
  • - 65 C
  • Maximum Operating Temperature
  • + 150 C
  • Channels
  • 1 Channel
  • Dimensions
  • 5.84 mm W x 6.86 mm L
  • Packaging
  • Reel
  • Peak Pulse Power Dissipation
  • 1500 W
  • Factory Pack Quantity
  • 2500
  • Termination Style

1SMC33AT3G Documents

1SMC33AT3G Related Products

Ratings and Reviews

  • 0 / 5
  • 5 Stars 0%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jul 10 - Jul 15 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that 1SMC33AT3G is the original manufacturer or agent of LITTELFUSE?
We have a professional business development department to strictly test and verify the qualifications of LITTELFUSE original manufacturers and agents. All LITTELFUSE suppliers must pass the qualification review before they can publish their 1SMC33AT3G devices; we pay more attention to the channels and quality of 1SMC33AT3G products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of 1SMC33AT3G chips? Including LITTELFUSE original factory information, TVS Diodes - Transient Voltage Suppressors application, 1SMC33AT3G pictures?
You can use Jotrin's intelligent search engine, or filter by TVS Diodes ; Surface Mount ; 1SMCxxA category, or find it through Littelfuse Inc Information page.
Q: Are the LITTELFUSE's 1SMC33AT3G price and stock displayed on the platform accurate?
The LITTELFUSE's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for 1SMC33AT3G, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of 1SMC33AT3G?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 1SMC33AT3G we delivered, we will accept the replacement or return of the 1SMC33AT3G only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of 1SMC33AT3G.
(3)The 1SMC33AT3G is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as 1SMC33AT3G datasheet pdf, 1SMCxxA pin diagram?
Need any After-Sales service, please feel free contact us:

Littelfuse Inc

Littelfuse offers innovative circuit protection solutions. Wherever you look, Littelfuse is there. Streetlights, office buildings, cars, trucks, factories, computers, heating and cooling systems, electronic games, telecommunications equipment, even the satellites in the sky are protected by Littelfu...
  • 1SMB51AT3G
    1SMB51AT3G 600 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - T...
  • 1SMB58AT3G
    1SMB58AT3G 600 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - T...
  • 1SMC12AT3G
    1SMC12AT3G 1500 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - ...
  • 1SMC15AT3G
    1SMC15AT3G 1500 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - ...
  • 1SMC16AT3G
    1SMC16AT3G 1500 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - ...
  • 1SMC24AT3G
    1SMC24AT3G 1500 Watt Peak Power Zener Transient Voltage Suppressors,TVS Diodes - ...

Certificates & Honor

Certificates & Honor