SMBJ45A Unidirectional TVS diode with 45V reverse standoff voltage, 72.7V clamping voltage, and 600W peak pulse power capability in a surface mount DO-214AA (SMB) package.
Mfr Part #:

SMBJ45A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Unidirectional TVS diode with 45V reverse standoff voltage, 72.7V clamping voltage, and 600W peak pulse power capability in a surface mount DO-214AA (SMB) package.
Total Stock: 23 pcs
$ Price Range: $0.07 - $0.50

SMBJ45A Available from 1 distributor

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SMBJ45A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
ESD Protection
Halogen Free
Lead Finish
MSL Level
Maximum Forward Surge Current
Maximum Instantaneous Forward Voltage
Mounting Type
Operating Temperature
Power
Power Dissipation
Power Line Protection
Response Time
Reverse Standoff Voltage
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

SMBJ45A Description

Short technical summary and product information.

The SMBJ45A is a unidirectional TVS diode from Littelfuse's SMBJ series designed to protect sensitive electronic equipment from voltage transients.

 

Key electrical specifications include a reverse standoff voltage of 45V, a clamping voltage of 72.7V, a peak pulse current of 8.3A (10/1000μs waveform), and a peak pulse power rating of 600W. The device offers ESD protection up to 30kV (air and contact) per IEC 61000-4-2 and a fast response time of less than 1.0ps.

 

The SMBJ45A is housed in a surface mount DO-214AA (SMB) package with matte tin lead finish, rated for operating temperatures from -65°C to +150°C. It is suitable for general purpose circuit protection applications including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

SMBJ45A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: TVS Diode SMBJ45A, 45V Reverse Standoff, 600W Peak Pulse Power, DO-214AA (SMB)
Subcategory: Unidirectional Zener TVS

SMBJ45A Compliance

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

SMBJ45A Estimated Pricing

Qty Low High
1+ $0.50 $0.50
10+ $0.31 $0.31
100+ $0.20 $0.20
500+ $0.15 $0.15
1,000+ $0.13 $0.13
3,000+ $0.09 $0.09
6,000+ $0.08 $0.08
9,000+ $0.08 $0.08
15,000+ $0.07 $0.07
21,000+ $0.07 $0.07
30,000+ $0.07 $0.07

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

SMBJ45A Features

  • 600W peak pulse power at 10/1000μs waveform.
  • 45V reverse standoff voltage, 72.7V clamping.
  • Fast response time under 1.0 picosecond.
  • Surface mount DO-214AA (SMB) package.

SMBJ45A Applications

  • Protect I/O interfaces from voltage transients.
  • Ideal for VCC bus and data line protection.
  • Used in telecom and consumer electronics.
  • Suitable for industrial and computing applications.

SMBJ45A FAQs

4 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SMBJ45A?

The reverse standoff voltage is 45V.

What is the clamping voltage of SMBJ45A?

The clamping voltage is 72.7V.

What is the peak pulse current rating of SMBJ45A?

The peak pulse current is 8.3A.

What package type does the SMBJ45A come in?

Surface mount DO-214AA (SMB) package.

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