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SMAJ51A-E3/61 SMAJ51A-E3/61 is a unidirectional TVS diode with a 51V standoff voltage and an 82.4V clamping voltage. It offers 400W peak pulse power dissipation and comes in a DO-214AC (SMA) surface-mount package.
Mfr Part #:

SMAJ51A-E3/61

Available from 3 distributors
Mfr Name: Vishay
Vishay
SMAJ51A-E3/61 is a unidirectional TVS diode with a 51V standoff voltage and an 82.4V clamping voltage. It offers 400W peak pulse power dissipation and comes in a DO-214AC (SMA) surface-mount package.
✓ Total Stock: 102,220 pcs
$ Price Range: $0.55

SMAJ51A-E3/61 Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
58,000 pcs
On Request
58000 pcs On Request 1 On Request On Request 18+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
42,420 pcs
On Request
42420 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
1,800 pcs
On Request
1800 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SMAJ51A-E3/61 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Dissipation
Power Line Protection
Supplier Device Package
Type
Unidirectional Channels
Voltage
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SMAJ51A-E3/61 Description

Short technical summary and product information.

Operating as a unidirectional transient voltage suppressor, the SMAJ51A-E3/61 from Vishay Dale protects sensitive electronics from overvoltage transients. It features a 51 V standoff voltage and clamps transient spikes to a maximum of 82.4 V while handling a peak pulse current of 4.9 A. The device is rated for 400 W peak pulse power dissipation with a 10/1000 μs waveform, with a derated 300 W rating for working voltages above 78 V.

 

The SMAJ51A-E3/61 is supplied in a DO-214AC (SMA) surface-mount package, allowing efficient placement in automated manufacturing. It operates across a temperature range of -55°C to 150°C and can withstand a peak forward surge current of 40 A, enhancing reliability in surge-prone environments. This TVS diode is well-suited for overvoltage protection in power supply circuits, signal lines, and other electronic systems where transient robustness is required.

SMAJ51A-E3/61 Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: TVS Diode Unidirectional 51V 400W 4.9A DO-214AC
Subcategory: Unidirectional TVS Diode

SMAJ51A-E3/61 Compliance

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

SMAJ51A-E3/61 Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

SMAJ51A-E3/61 Features

  • Unidirectional TVS diode in DO-214AC package.
  • 51V working voltage for circuit protection.
  • 82.4V clamping voltage protects sensitive loads.
  • Handles 4.9A peak pulse current.
  • Rated for 400W peak pulse power.

SMAJ51A-E3/61 Applications

  • Surge protection for sensor signal lines
  • Used in consumer electronics power inputs
  • Protects ICs from inductive load switching
  • Suitable for telecommunication circuit protection
  • Ideal for automotive control module protection

SMAJ51A-E3/61 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SMAJ51A-E3/61?

The standoff (working) voltage is 51 V.

What is the clamping voltage of the SMAJ51A-E3/61?

The maximum clamping voltage is 82.4 V.

What is the peak pulse current rating?

The peak pulse current rating is 4.9 A.

What is the package type?

The device is available in a DO-214AC (SMA) surface-mount package.

What is the peak pulse power dissipation?

The peak pulse power dissipation is 400 W with a 10/1000 μs waveform, derated to 300 W above 78 V.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C.

Is the SMAJ51A-E3/61 unidirectional?

Yes, it has one unidirectional channel.

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