SMCJ30A SMCJ30A is a 1500W unidirectional TVS diode from On Semiconductor. It features 30V reverse standoff voltage and 48.4V clamping voltage in a surface mount SMC package.
Mfr Part #:

SMCJ30A

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
SMCJ30A is a 1500W unidirectional TVS diode from On Semiconductor. It features 30V reverse standoff voltage and 48.4V clamping voltage in a surface mount SMC package.
Total Stock: 6,996 pcs
$ Price Range: $0.17 - $0.93

SMCJ30A 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
2,525 pcs
2525 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,399 pcs
2399 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,072 pcs
2072 pcs On Request 1 On Request On Request 24+ On Request On Request

SMCJ30A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
SVHC Present
Supplier Device Package
Type
Unidirectional Channels
Voltage
Voltage - Breakdown (Min)
Voltage - Reverse Standoff (Typ)

SMCJ30A Description

Short technical summary and product information.

The SMCJ30A is a unidirectional transient voltage suppression (TVS) diode designed to protect sensitive electronic equipment from voltage transients. It offers a peak pulse power of 1500W (10/1000µs waveform) and is part of the SMCJ series from On Semiconductor.

 

Key electrical specifications include a reverse standoff voltage of 30V, minimum breakdown voltage of 33.3V, and maximum clamping voltage of 48.4V at 31A peak pulse current. The device is suitable for general purpose applications such as I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

 

The SMCJ30A is housed in a DO-214AB (SMC) surface mount package, with an operating temperature range of -55°C to 150°C. It features fast response time (<1ps), low incremental surge resistance, and is halogen free and RoHS compliant. The package is MSL level 1 per J-STD-020.

SMCJ30A Quick Information

Product Type: TVS Diode
Series: SMCJ
Canonical Name: SMCJ30A TVS Diode, 30V Reverse Standoff, 48.4V Clamping, SMC Package
Subcategory: Unidirectional TVS Diode

SMCJ30A Compliance

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

SMCJ30A Estimated Pricing

Qty Low High
1+ $0.93 $0.93
10+ $0.58 $0.58
100+ $0.38 $0.38
500+ $0.29 $0.29
1,000+ $0.26 $0.26
3,000+ $0.22 $0.22
6,000+ $0.21 $0.21
9,000+ $0.20 $0.20
15,000+ $0.19 $0.19
21,000+ $0.18 $0.18
30,000+ $0.17 $0.17

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

SMCJ30A Features

  • 1500W peak pulse power capability at 10/1000µs waveform.
  • 30V reverse standoff voltage with 48.4V clamping.
  • Unidirectional protection for single-channel applications.
  • Surface mount SMC package for compact designs.
  • Fast response time less than 1ps from 0V to breakdown.

SMCJ30A Applications

  • Protects I/O interfaces and VCC bus in telecom equipment.
  • Suitable for transient protection in computer and consumer electronics.
  • Used in industrial control systems for voltage surge suppression.
  • Ideal for general purpose circuit protection in surface mount designs.

SMCJ30A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMCJ30A?

30V.

What is the breakdown voltage range?

Minimum 33.3V.

What is the maximum clamping voltage?

48.4V at 31A peak pulse current.

What is the peak pulse current rating?

31A for 10/1000µs waveform.

What package does the SMCJ30A come in?

DO-214AB (SMC) surface mount package.

What is the peak pulse power rating?

1500W for 10/1000µs waveform.

Is the SMCJ30A RoHS compliant?

Yes, it is RoHS3 compliant and halogen free per datasheet claims.

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