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1.5KE400A The 1.5KE400A is a 1500W unidirectional TVS diode with 342V reverse standoff voltage and 706V clamping voltage, designed for through-hole mounting in a DO-201 package.
Mfr Part #:

1.5KE400A

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The 1.5KE400A is a 1500W unidirectional TVS diode with 342V reverse standoff voltage and 706V clamping voltage, designed for through-hole mounting in a DO-201 package.
✓ Total Stock: 61,557 pcs

1.5KE400A Available from 3 distributors

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30,000 pcs
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357 pcs
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1.5KE400A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Capacitance @ Frequency
Current
Failure Rate
Halogen Free
Lead Style
Mounting Type
Operating Temperature Range
Package / Case
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Supplier Device Package
Tape & Reel
Termination Style
Type
Unidirectional Channels
Voltage
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1.5KE400A Description

Short technical summary and product information.

The 1.5KE400A is a 1500W peak pulse power (10/1000µs) unidirectional TVS diode from STMicroelectronics, part of the 1.5KE series. It features a reverse standoff voltage of 342V, with a breakdown voltage range of 380V to 420V and a maximum clamping voltage of 706V at 14A peak pulse current (8/20µs). The device offers fast response time of less than 1ps from 0V to breakdown voltage, making it suitable for protecting sensitive electronics from lightning-induced transients and other voltage surges.

 

This TVS diode is rated for ESD protection up to 30kV air discharge and 30kV contact discharge per IEC 61000-4-2. It operates over a junction temperature range of -55°C to +175°C with thermal resistance of 15°C/W junction-to-lead and 75°C/W junction-to-ambient. The unidirectional channel provides low leakage current, typically less than 1µA for breakdown voltages above 12V.

 

The device is housed in a DO-201 (DO-201AA, DO-27, Axial) through-hole package with matte tin lead finish. It is lead-free (Pb-free E3) and halogen free, with a flammability rating of V-0 per UL. Typical applications include general purpose transient voltage protection in telecom, computer, industrial, and consumer electronics.

1.5KE400A Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: TVS Diode 1.5KE400A, Unidirectional, 1500W, DO-201
Subcategory: Unidirectional TVS Diode

1.5KE400A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-Free (Pb-free E3)

1.5KE400A Features

  • 1500W peak pulse power dissipation.
  • 342V reverse standoff voltage.
  • Fast response time less than 1ps.
  • Unidirectional TVS in DO-201 package.
  • ESD protection up to 30kV.

1.5KE400A Applications

  • General purpose transient voltage protection.
  • I/O interface protection in telecom equipment.
  • Protection of VCC bus in industrial electronics.
  • Consumer electronics surge protection.

1.5KE400A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE400A?

The reverse standoff voltage (V_RWM) is 342V.

What is the breakdown voltage range?

The breakdown voltage (V_BR) ranges from 380V (minimum) to 420V (maximum).

What is the clamping voltage?

The maximum clamping voltage is 706V.

What is the peak pulse current rating?

The peak pulse current is 14A for an 8/20µs waveform.

What package does the 1.5KE400A come in?

It is available in a DO-201AA, DO-27, Axial through-hole package (supplier device package DO-201).

What is the peak pulse power rating?

The peak pulse power dissipation is 1500W for a 10/1000µs waveform (single die parts).

What is the operating temperature range?

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

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