SMDJ18A Littelfuse SMDJ18A is a 3000W unidirectional TVS diode with 18V reverse standoff voltage and 29.2V clamping. Designed for surface mount in DO-214AB (SMC) package.
Mfr Part #:

SMDJ18A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse SMDJ18A is a 3000W unidirectional TVS diode with 18V reverse standoff voltage and 29.2V clamping. Designed for surface mount in DO-214AB (SMC) package.
Total Stock: 84 pcs
$ Price Range: $0.35 - $1.60

SMDJ18A Available from 1 distributor

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SMDJ18A Specifications Quick View

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

SMDJ18A Description

Short technical summary and product information.

The Littelfuse SMDJ18A is a 3000W unidirectional transient voltage suppression (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It features a reverse standoff voltage of 18V and a clamping voltage of 29.2V at a peak pulse current of 102.7A (10/1000μs waveform).

 

The device is housed in a surface-mount DO-214AB (SMC) package with matte tin lead-free termination. It offers ESD protection up to 30kV air and 30kV contact per IEC-61000-4-2, and is rated for operating junction temperatures from -65°C to 150°C. The SMDJ18A is halogen-free, lead-free, and RoHS3 compliant.

 

Ideal for general-purpose circuit protection, this TVS diode is suited for I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computing, industrial, and consumer electronics. The DO-214AB package enables efficient board space utilization in automated assembly processes.

SMDJ18A Quick Information

Product Type: TVS Diode
Series: SMDJ
Canonical Name: SMDJ18A TVS Diode, Unidirectional, 3000W, DO-214AB
Subcategory: Unidirectional

SMDJ18A Compliance

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

SMDJ18A Estimated Pricing

Qty Low High
1+ $1.60 $1.60
10+ $1.01 $1.01
100+ $0.67 $0.67
500+ $0.53 $0.53
1,000+ $0.48 $0.48
3,000+ $0.35 $0.35
6,000+ $0.35 $0.35

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

SMDJ18A Features

  • 3000W peak pulse power dissipation.
  • 18V reverse standoff voltage rating.
  • 29.2V clamping voltage at 102.7A.
  • Unidirectional protection for DC lines.
  • Surface mount DO-214AB (SMC) package.

SMDJ18A Applications

  • Protects I/O interfaces and data lines.
  • Safeguards VCC bus in telecom equipment.
  • Used in computing and peripheral devices.
  • Applicable in industrial control systems.
  • Ideal for consumer electronics power inputs.

SMDJ18A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SMDJ18A?

The reverse standoff voltage is 18V.

What is the clamping voltage of the SMDJ18A?

The clamping voltage is 29.2V at 102.7A peak pulse current.

What is the package type of the SMDJ18A?

The SMDJ18A is in a DO-214AB (SMC) surface mount package.

What is the peak pulse power rating of the SMDJ18A?

The peak pulse power dissipation is 3000W (10/1000μs waveform).

Is the SMDJ18A RoHS compliant?

Yes, it is stated as RoHS3 compliant (unverified).

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