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1SMB40CAT3 1SMB40CAT3 is a 600W bidirectional Zener TVS diode from On Semiconductor with a working reverse voltage of 40V and clamping voltage of 64.5V. It comes in a surface mount DO-214AA (SMB) package.
Mfr Part #:

1SMB40CAT3

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
1SMB40CAT3 is a 600W bidirectional Zener TVS diode from On Semiconductor with a working reverse voltage of 40V and clamping voltage of 64.5V. It comes in a surface mount DO-214AA (SMB) package.
Total Stock: 1,615 pcs
$ Price Range: $0.15 - $0.40

1SMB40CAT3 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
On Request On Request 200 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,615 pcs
1615 pcs On Request 1 On Request On Request On Request On Request On Request

1SMB40CAT3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Capacitance
Capacitance @ Frequency
Clamping Voltage
Current
ESD Rating
Lead Style
Leakage Current
Medical Grade
Mounting Type
Operating Temperature
Package / Case
Packaging Type
Peak Power Dissipation
Peak Pulse Current
Power
Power Line Protection
Response Time
SVHC Present
Standard Package Qty
Storage Temperature
Supplier Device Package
Tape & Reel
Type
UL Certification
Voltage
Working Reverse Voltage

1SMB40CAT3 Description

Short technical summary and product information.

The 1SMB40CAT3 is a 600W peak power bidirectional Zener transient voltage suppressor from On Semiconductor. It is designed to protect sensitive electronic circuits from high voltage transients. Key electrical specifications include a working reverse voltage of 40V, a clamping voltage of 64.5V at a peak pulse current of 9.3A (10/1000µs waveform), and a peak power dissipation of 600W at 1ms. The device features a fast response time of less than 1ns and an ESD rating of Class 3 (>16kV) per Human Body Model. It has a low leakage current of less than 5µA above 10V and a capacitance of 220pF at 1MHz. The 1SMB40CAT3 is housed in a DO-214AA (SMB) surface mount package with modified L-bend leads. It is supplied in tape and reel packaging with a standard quantity of 2500 pieces. The operating temperature range is -65°C to 150°C. This TVS diode is suitable for general purpose applications including communication systems, automotive, and industrial equipment. It is UL 497B certified for isolated loop circuit protection.

1SMB40CAT3 Quick Information

Product Type: TVS Diode
Series: 1SMB10CAT3
Canonical Name: 1SMB40CAT3 Bidirectional TVS Diode, 40V Working Reverse Voltage, 600W
Subcategory: Bidirectional Zener TVS Diode

1SMB40CAT3 Compliance

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

1SMB40CAT3 Estimated Pricing

Qty Low High
1+ $0.30 $0.50
10+ $0.25 $0.40
100+ $0.15 $0.30
1,000+ $0.10 $0.20

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

1SMB40CAT3 Features

  • 600W peak power dissipation at 1ms.
  • 40V working reverse voltage rating.
  • Fast response time less than 1ns.
  • ESD rated Class 3 above 16kV.
  • Surface mount DO-214AA (SMB) package.

1SMB40CAT3 Applications

  • General purpose transient voltage protection.
  • Suitable for communication systems equipment.
  • Used in automotive electronic modules.
  • Protects industrial control circuits.

1SMB40CAT3 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the 1SMB40CAT3?

The working reverse voltage (standoff voltage) is 40V.

What is the clamping voltage?

The clamping voltage is 64.5V at a peak pulse current of 9.3A.

What is the peak pulse current rating?

The peak pulse current is 9.3A for a 10/1000µs waveform.

What package is the 1SMB40CAT3 available in?

It is available in a DO-214AA (SMB) surface mount package.

What is the response time?

The response time is typically less than 1ns.

What is the ESD rating?

It has an ESD rating of Class 3 (>16kV) per Human Body Model.

What is the capacitance?

The capacitance is 220pF at 1MHz.

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