1.5KE39A The 1.5KE39A is a 1500W unidirectional TVS diode with 33.3V reverse standoff voltage and 69.7V clamping, packaged in DO-201.
Mfr Part #:

1.5KE39A

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The 1.5KE39A is a 1500W unidirectional TVS diode with 33.3V reverse standoff voltage and 69.7V clamping, packaged in DO-201.
Total Stock: 246,414 pcs

1.5KE39A Available from 3 distributors

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162,400 pcs
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84,000 pcs
84000 pcs On Request 1 On Request On Request On Request On Request On Request
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14 pcs
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1.5KE39A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Capacitance @ Frequency
Current
Current - Peak Pulse (10/1000µs)
Flammability Rating
Halogen Free
Lead Finish
Lead Free Status
Maximum Instantaneous Forward Voltage
Mounting Type
Operating Junction Temperature Range
Package / Case
Peak Forward Surge Current (8.3ms)
Peak Pulse Power Dissipation (10/1000µs)
Power
Power - Peak Pulse
Power Line Protection
Response Time
SVHC Present
Steady State Power Dissipation
Storage Temperature Range
Supplier Device Package
Tape & Reel
Temperature Coefficient
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Typical Reverse Leakage Current
Unidirectional Channels
Voltage
Voltage - Clamping (Max) @ Ipp
Voltage - Reverse Standoff (Typ)

1.5KE39A Description

Short technical summary and product information.

The 1.5KE39A is a unidirectional TVS diode designed for transient voltage protection. It features a reverse standoff voltage of 33.3V and a clamping voltage of 69.7V at 143A peak pulse current (10/1000µs waveform). With a peak pulse power dissipation of 1500W, it is suitable for protecting sensitive electronics from lightning and other voltage transients.

 

The device offers fast response time (<1ps) and low typical reverse leakage current (<1µA at VBR min>12V). It is housed in a through-hole DO-201AA/DO-27 axial package with matte tin lead finish. The operating junction temperature range is -55 to 175°C.

 

Typical applications include general purpose protection of I/O interfaces, VCC bus, and other circuits in telecom, computer, industrial, and consumer electronics. The device is RoHS3 compliant and halogen free.

1.5KE39A Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: 1.5KE39A TVS Diode
Subcategory: Transient Voltage Suppression Diode

1.5KE39A Compliance

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

1.5KE39A Features

  • 1500W peak pulse power dissipation.
  • Fast response time of less than 1ps.
  • Low reverse leakage current (<1µA typical).
  • Unidirectional TVS protection.
  • DO-201 through-hole package.

1.5KE39A Applications

  • Protects I/O interfaces from voltage transients.
  • Used in VCC bus and power supply circuits.
  • Ideal for telecom and computer equipment.
  • Suitable for industrial and consumer electronics.

1.5KE39A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE39A?

33.3V.

What is the clamping voltage of the 1.5KE39A?

69.7V at 143A.

What is the peak pulse current rating?

143A at 10/1000µs waveform.

What is the peak pulse power dissipation?

1500W.

What package does the 1.5KE39A come in?

DO-201AA, DO-27, Axial.

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