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1.5KE43A-E3/54 The 1.5KE43A-E3/54 is a 1500W unidirectional TVS diode from Vishay with a reverse standoff voltage of 36.8V and clamping voltage of 59.3V. It is housed in a DO-201AA axial leaded package.
Mfr Part #:

1.5KE43A-E3/54

Available from 2 distributors
Mfr Name: Vishay
Vishay
The 1.5KE43A-E3/54 is a 1500W unidirectional TVS diode from Vishay with a reverse standoff voltage of 36.8V and clamping voltage of 59.3V. It is housed in a DO-201AA axial leaded package.
✓ Total Stock: 2,459 pcs
$ Price Range: $0.33 - $1.22

1.5KE43A-E3/54 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,420 pcs
On Request
2420 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
39 pcs
On Request
39 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.

1.5KE43A-E3/54 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Industrial Grade
Mounting Type
Operating Temperature
Power
Power Dissipation
Power Line Protection
Supplier Device Package
Tape & Reel
Technology
Termination Style
Type
Unidirectional Channels
Voltage
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1.5KE43A-E3/54 Description

Short technical summary and product information.

The 1.5KE43A-E3/54 is a unidirectional TRANSZORB transient voltage suppressor from Vishay General Semiconductor, designed to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 36.8V and a breakdown voltage range of 40.9V to 45.2V at 1mA. The device clamps transient voltages to a maximum of 59.3V, handling a peak pulse current of 25.3A under a 10/1000µs waveform.

 

With a peak pulse power rating of 1500W, this TVS diode is suitable for protecting ICs, MOSFETs, and signal lines in consumer, computer, industrial, and telecommunication applications. It utilizes a glass passivated chip junction for reliability and offers very fast response time to transients.

 

The part is packaged in a DO-201AA (DO-27) axial leaded package with through-hole mounting. The termination leads are matte tin plated and solderable per J-STD-002. The E3 suffix indicates RoHS compliance and commercial grade. The /54 suffix denotes tape and reel packaging.

1.5KE43A-E3/54 Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: 1.5KE43A-E3/54 Vishay General Semiconductor TRANSZORB TVS Diode, Unidirectional, 1500W, DO-201AA
Subcategory: Unidirectional TVS Diode

1.5KE43A-E3/54 Compliance

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

1.5KE43A-E3/54 Estimated Pricing

Qty Low High
1+ $1.22 $1.22
10+ $0.88 $0.88
100+ $0.60 $0.60
500+ $0.47 $0.47
1,400+ $0.42 $0.42
2,800+ $0.37 $0.37
4,200+ $0.34 $0.34
9,800+ $0.33 $0.33

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

1.5KE43A-E3/54 Features

  • 1500W peak pulse power capability.
  • 36.8V reverse standoff voltage rating.
  • 59.3V maximum clamping voltage.
  • Unidirectional polarity with cathode band.
  • Glass passivated chip junction construction.

1.5KE43A-E3/54 Applications

  • Protects ICs and MOSFETs from voltage transients.
  • Used in sensor signal line protection.
  • Suitable for consumer electronics power supplies.
  • Ideal for industrial control equipment.
  • Applied in telecommunication line protection.

1.5KE43A-E3/54 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE43A-E3/54?

The reverse standoff voltage (V_RWM) is 36.8V.

What is the breakdown voltage range for this TVS diode?

The breakdown voltage (V_BR) at 1mA ranges from 40.9V to 45.2V.

What is the clamping voltage of the 1.5KE43A-E3/54?

The maximum clamping voltage is 59.3V.

What is the peak pulse current rating?

The peak pulse current (I_PP) is 25.3A for a 10/1000µs waveform.

What package does the 1.5KE43A-E3/54 come in?

It is available in a DO-201AA (DO-27) axial leaded through-hole package.

Is this TVS diode unidirectional or bidirectional?

It is a unidirectional device, indicated by the 'A' suffix (not 'CA').

What is the operating temperature range?

The operating junction temperature range is -55°C to 175°C.

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