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1SMB33CAT3G This Littelfuse 1SMB33CAT3G is a 600W bidirectional TVS diode with a reverse standoff voltage of 33V and a clamping voltage of 53.3V. It is designed for general purpose circuit protection in a surface mount SMB package.
Mfr Part #:

1SMB33CAT3G

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
This Littelfuse 1SMB33CAT3G is a 600W bidirectional TVS diode with a reverse standoff voltage of 33V and a clamping voltage of 53.3V. It is designed for general purpose circuit protection in a surface mount SMB package.
Total Stock: 45 pcs
$ Price Range: $0.18 - $0.40

1SMB33CAT3G Available from 1 distributors

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Non-Authorised
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1SMB33CAT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Capacitance @ Frequency
Clamping Voltage
Current
Mounting Type
Operating Temperature
Package / Case
Peak Pulse Current (Ipp)
Peak Pulse Power
Power
Power Line Protection
Reverse Standoff Voltage (Vrwm)
Supplier Device Package
Tape & Reel
Type
Voltage

1SMB33CAT3G Description

Short technical summary and product information.

The 1SMB33CAT3G is a bidirectional Zener TVS diode from Littelfuse Inc., designed for general purpose transient voltage suppression. It features a reverse standoff voltage of 33V and a maximum clamping voltage of 53.3V, with a peak pulse power dissipation of 600W and a peak pulse current of 11.3A (8/20µs). The device is not intended for power line protection and is rated for operating temperatures from -65°C to 150°C.

 

This TVS diode is suitable for protecting sensitive electronics from voltage transients in a variety of applications. Its surface mount SMB package (DO-214AA) allows for compact PCB designs. The component has a capacitance of 265pF at 1MHz, which should be considered in high-frequency applications.

 

The 1SMB33CAT3G is RoHS3 compliant and has an MSL of 1 (unlimited), making it suitable for lead-free soldering processes. It is also REACH unaffected. However, note that compliance data is unverified. The part is commonly available from distributors such as DigiKey under alternate part numbers including 1SMB33CAT3GOSTR-ND.

1SMB33CAT3G Quick Information

Product Type: TVS Diode
Canonical Name: 1SMB33CAT3G - TVS Diode, 33V Reverse Standoff, 53.3V Clamping, Surface Mount SMB
Subcategory: Zener TVS

1SMB33CAT3G Compliance

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

1SMB33CAT3G Estimated Pricing

Qty Low High
1+ $0.30 $0.50
10+ $0.25 $0.40
100+ $0.20 $0.35
1,000+ $0.12 $0.25

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

1SMB33CAT3G Features

  • 600W peak pulse power dissipation.
  • 33V reverse standoff voltage rating.
  • 53.3V maximum clamping voltage.
  • 11.3A peak pulse current capability.
  • Surface mount SMB package.

1SMB33CAT3G Applications

  • General purpose transient voltage suppression.
  • Protection for sensitive electronic circuits.
  • Suitable for I/O interfaces and power rails.
  • Used in consumer and industrial equipment.

1SMB33CAT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1SMB33CAT3G?

33V.

What is the clamping voltage of the 1SMB33CAT3G?

53.3V.

What is the peak pulse current rating of the 1SMB33CAT3G?

11.3A.

What is the peak pulse power rating of the 1SMB33CAT3G?

600W.

What package is the 1SMB33CAT3G available in?

DO-214AA (SMB) surface mount package.

Is the 1SMB33CAT3G suitable for power line protection?

No, it is not rated for power line protection.

What is the capacitance of the 1SMB33CAT3G?

265pF at 1MHz.

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