SMBJ43CA TVS diode from Littelfuse Inc., 600W peak pulse power, 43V reverse standoff voltage, 69.4V clamping, in DO-214AA SMB surface mount package.
Mfr Part #:

SMBJ43CA

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TVS diode from Littelfuse Inc., 600W peak pulse power, 43V reverse standoff voltage, 69.4V clamping, in DO-214AA SMB surface mount package.
Total Stock: 17,990 pcs
$ Price Range: $0.08 - $0.57

SMBJ43CA Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
15,000 pcs
15000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
2,700 pcs
2700 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
290 pcs
290 pcs On Request 1 On Request On Request On Request On Request On Request

SMBJ43CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
EFT Protection
ESD Rating
Halogen Free
Leakage Current
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Storage Temperature Range
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Ul File Number
Voltage

SMBJ43CA Description

Short technical summary and product information.

The SMBJ43CA is a 600W bidirectional TVS diode from Littelfuse Inc., designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It features a reverse standoff voltage of 43V and a clamping voltage of 69.4V at 8.7A peak pulse current (10/1000μs waveform).

 

The device offers fast response time of less than 1.0ps from 0V to breakdown voltage, and typical leakage current below 1μA. It is rated for ESD protection up to 30kV air and contact per IEC 61000-4-2, and EFT protection per IEC 61000-4-4.

 

Packaged in a DO-214AA (SMB) surface mount package with gull wing terminals, the SMBJ43CA is suitable for general purpose protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer applications. Operating temperature range is -65°C to 150°C.

SMBJ43CA Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ43CA Littelfuse Inc. TVS Diode
Subcategory: Transient Voltage Suppressor

SMBJ43CA Compliance

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

SMBJ43CA Estimated Pricing

Qty Low High
1+ $0.57 $0.57
10+ $0.35 $0.35
100+ $0.22 $0.22
500+ $0.17 $0.17
1,000+ $0.15 $0.15
3,000+ $0.11 $0.11
6,000+ $0.10 $0.10
9,000+ $0.09 $0.09
15,000+ $0.09 $0.09
21,000+ $0.08 $0.08
30,000+ $0.08 $0.08

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

SMBJ43CA Features

  • 600W peak pulse power capability.
  • 43V reverse standoff voltage.
  • 69.4V clamping voltage at 8.7A.
  • Fast response time less than 1.0ps.
  • Surface mount DO-214AA SMB package.

SMBJ43CA Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection circuits.
  • Used in telecom and computer equipment.
  • Ideal for industrial and consumer electronics.

SMBJ43CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ43CA?

43V

What is the clamping voltage of the SMBJ43CA?

69.4V at 8.7A peak pulse current (10/1000μs waveform)

What is the peak pulse power rating?

600W for a 10/1000μs waveform

What package does the SMBJ43CA come in?

DO-214AA (SMB) surface mount package

What is the operating temperature range?

-65°C to 150°C

Is the SMBJ43CA RoHS compliant?

Yes, RoHS compliant and halogen free

What is the ESD rating?

30kV air discharge and 30kV contact discharge per IEC 61000-4-2

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