SMBJ12CA SMBJ12CA is a 600W bidirectional TVS diode by Littelfuse Inc. with 12V reverse standoff voltage and 19.9V clamping voltage, in a surface mount DO-214AA (SMB) package.
Mfr Part #:

SMBJ12CA

Available from 9 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMBJ12CA is a 600W bidirectional TVS diode by Littelfuse Inc. with 12V reverse standoff voltage and 19.9V clamping voltage, in a surface mount DO-214AA (SMB) package.
Total Stock: 145,690 pcs
$ Price Range: $0.08 - $0.54

SMBJ12CA Available from 9 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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106,745 pcs
106745 pcs On Request 1 On Request On Request 22+ On Request On Request
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12,168 pcs
12168 pcs On Request 1 On Request On Request On Request On Request On Request
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9,000 pcs
9000 pcs On Request 1 On Request On Request On Request On Request On Request
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7,000 pcs
7000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
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5,050 pcs
5050 pcs On Request 1 On Request On Request On Request On Request On Request
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4,971 pcs
4971 pcs On Request 1 On Request On Request On Request On Request On Request
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732 pcs
732 pcs On Request 1 On Request On Request On Request On Request On Request
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16 pcs
16 pcs On Request 1 On Request On Request On Request On Request On Request
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8 pcs
8 pcs On Request 1 On Request On Request On Request On Request On Request

SMBJ12CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Storage Temperature
Supplier Device Package
Tape & Reel
Terminal Finish
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Voltage
peak-forward-surge-current (8.3ms half sine wave)
reverse-leakage-current (VBR min > 12V)

SMBJ12CA Description

Short technical summary and product information.

The SMBJ12CA from Littelfuse Inc. is a 600W bidirectional Zener TVS diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

 

It features a 12V reverse standoff voltage (VRWM), maximum clamping voltage of 19.9V, and can handle a peak pulse current of 30.2A under a 10/1000μs waveform. The device has a fast response time of less than 1.0ps from 0V to breakdown, and typical reverse leakage current is less than 1μA.

 

This diode is housed in a surface mount DO-214AA (SMB) package with matte tin lead-free plated terminals, rated for operating temperatures from -65°C to 150°C. It is RoHS compliant, halogen free, and MSL Level 1 (unlimited). Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

SMBJ12CA Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ12CA Littelfuse Inc. Surface Mount TVS Diode
Subcategory: Zener TVS Diode

SMBJ12CA Compliance

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

SMBJ12CA Estimated Pricing

Qty Low High
1+ $0.54 $0.54
10+ $0.33 $0.33
100+ $0.21 $0.21
500+ $0.16 $0.16
1,000+ $0.14 $0.14
3,000+ $0.10 $0.10
6,000+ $0.09 $0.09
9,000+ $0.09 $0.09
15,000+ $0.08 $0.08
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.

SMBJ12CA Features

  • 600W peak pulse power capability.
  • Fast response time under 1.0ps.
  • Bidirectional protection with single channel.
  • Surface mount DO-214AA SMB package.
  • RoHS compliant and halogen free.

SMBJ12CA Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection circuits.
  • Used in telecom and networking equipment.
  • Industrial control system transient protection.

SMBJ12CA FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ12CA?

The reverse standoff voltage (VRWM) is 12V.

What is the maximum clamping voltage?

The maximum clamping voltage is 19.9V.

What is the peak pulse power rating?

The device can handle 600W peak pulse power under a 10/1000μs waveform.

What package does the SMBJ12CA come in?

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

What is the peak pulse current capability?

The maximum peak pulse current is 30.2A under a 10/1000μs waveform.

Is the SMBJ12CA RoHS compliant?

Yes, it is RoHS3 compliant and halogen free.

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