SMAJ78CA The SMAJ78CA is a 400W bidirectional TVS diode from Littelfuse with a reverse standoff voltage of 78V and clamping voltage of 126V. It is housed in a surface-mount DO-214AC (SMA) package.
Mfr Part #:

SMAJ78CA

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The SMAJ78CA is a 400W bidirectional TVS diode from Littelfuse with a reverse standoff voltage of 78V and clamping voltage of 126V. It is housed in a surface-mount DO-214AC (SMA) package.
Total Stock: 331 pcs
$ Price Range: $0.06 - $0.48

SMAJ78CA Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
276 pcs
276 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
55 pcs
55 pcs On Request 1 On Request On Request On Request On Request On Request

SMAJ78CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Clamping Voltage
Current
Halogen Free
Mounting Type
Operating Temperature
Power
Power Line Protection
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Voltage

SMAJ78CA Description

Short technical summary and product information.

The SMAJ78CA is a bidirectional TVS diode from Littelfuse Inc., part of the SMAJ series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

 

Key electrical specifications include a reverse standoff voltage of 78V, a maximum clamping voltage of 126V, and a peak pulse current rating of 3.2A under a 10/1000µs waveform. The device can handle 400W of peak pulse power under the same test condition. It operates over a junction temperature range of -65°C to 150°C.

 

The SMAJ78CA is surface-mountable and comes in a DO-214AC (SMA) package. It is RoHS3 compliant, halogen free, and lead free, with an MSL level of 1 (unlimited). This TVS diode is suitable for general-purpose applications such as protecting I/O interfaces, VCC buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

SMAJ78CA Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: SMAJ78CA TVS Diode
Subcategory: TVS - Diodes

SMAJ78CA Compliance

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

SMAJ78CA Estimated Pricing

Qty Low High
1+ $0.48 $0.48
10+ $0.30 $0.30
100+ $0.19 $0.19
500+ $0.14 $0.14
1,000+ $0.12 $0.12
2,000+ $0.11 $0.11
5,000+ $0.08 $0.08
10,000+ $0.07 $0.07
15,000+ $0.07 $0.07
25,000+ $0.07 $0.07
35,000+ $0.06 $0.06

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

SMAJ78CA Features

  • 400W peak pulse power capability.
  • 78V reverse standoff voltage rating.
  • 126V maximum clamping voltage.
  • Surface-mount DO-214AC (SMA) package.
  • RoHS3 compliant and halogen free.

SMAJ78CA 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.

SMAJ78CA FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMAJ78CA?

The reverse standoff voltage is 78V.

What is the clamping voltage of this TVS diode?

The maximum clamping voltage is 126V.

What is the peak pulse power rating of the SMAJ78CA?

The peak pulse power rating is 400W under a 10/1000µs waveform.

What package does the SMAJ78CA come in?

It comes in a surface-mount DO-214AC (SMA) package.

Is the SMAJ78CA RoHS compliant?

Yes, it is RoHS3 compliant.

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