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1.5KE51CA Bidirectional TVS diode from Littelfuse, 43.6V reverse standoff voltage, 70.1V clamping, 1500W peak pulse power, in a DO-201 through-hole package.
Mfr Part #:

1.5KE51CA

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Bidirectional TVS diode from Littelfuse, 43.6V reverse standoff voltage, 70.1V clamping, 1500W peak pulse power, in a DO-201 through-hole package.
✓ Total Stock: 237 pcs

1.5KE51CA Available from 1 distributor

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237 pcs
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1.5KE51CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
Halogen Free
Mounting Type
Operating Temperature
Package / Case
Power
Power Line Protection
Response Time
Supplier Device Package
Tape & Reel
Type
Voltage
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1.5KE51CA Description

Short technical summary and product information.

The 1.5KE51CA is a bidirectional transient voltage suppression (TVS) diode from Littelfuse Inc., part of the 1.5KE series. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The device features a reverse standoff voltage of 43.6V and a clamping voltage of 70.1V at a peak pulse current of 21.7A, with a peak pulse power dissipation of 1500W (10/1000μs waveform).

 

This TVS diode offers fast response time of less than 1.0ps from 0V to breakdown voltage minimum, and includes ESD protection per IEC 61000-4-2 (30kV air/contact) and EFT protection per IEC 61000-4-4. It is housed in a DO-201AA/DO-27 axial leaded through-hole package, with a glass passivated chip junction for reliability. The device is RoHS compliant, halogen free, and lead-free (E3).

 

Typical applications include protection of I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. The operating junction temperature range is -55°C to 175°C, with steady state power dissipation of 6.5W on infinite heat sink.

1.5KE51CA Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: 1.5KE51CA Littelfuse Inc. TVS Diode, 1500W, Bidirectional, DO-201
Subcategory: Bidirectional TVS

1.5KE51CA Compliance

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

1.5KE51CA Features

  • 1500W peak pulse power dissipation.
  • 43.6V reverse standoff voltage.
  • 70.1V clamping voltage at 21.7A.
  • Fast response time less than 1.0ps.
  • RoHS compliant and halogen free.

1.5KE51CA Applications

  • Protection of I/O interfaces and data lines.
  • VCC bus transient voltage suppression.
  • Telecom and computer equipment protection.
  • Industrial and consumer electronic circuits.

1.5KE51CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE51CA?

43.6V.

What is the clamping voltage of this TVS diode?

70.1V at 21.7A peak pulse current.

What is the peak pulse power rating?

1500W for a 10/1000μs waveform.

What package does the 1.5KE51CA come in?

DO-201AA, DO-27, Axial (through-hole).

Is this part RoHS compliant?

Yes, RoHS compliant and halogen free.

What is the operating temperature range?

-55°C to 175°C (junction temperature).

What is the ESD rating?

30kV air discharge and 30kV contact discharge per IEC 61000-4-2.

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