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3KP12A 3KP12A is a 3000W TVS diode from Littelfuse with a 12V reverse standoff voltage and 19.9V clamping voltage in a through-hole P600 package.
Mfr Part #:

3KP12A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
3KP12A is a 3000W TVS diode from Littelfuse with a 12V reverse standoff voltage and 19.9V clamping voltage in a through-hole P600 package.
✓ Total Stock: 590 pcs

3KP12A Available from 1 distributor

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✓ Non-Authorised
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Bristol Electronics ✓
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590 pcs
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590 pcs On Request 1 On Request On Request On Request On Request On Request
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3KP12A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Line Protection
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Unidirectional Channels
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3KP12A Description

Short technical summary and product information.

The 3KP12A is a 3000W transient voltage suppression diode from the Littelfuse 3KP series. It features a reverse standoff voltage of 12V and a clamping voltage of 19.9V, providing robust protection against voltage transients induced by lightning and other transient events. With a peak pulse current rating of 150.8A (10/1000μs waveform), it absorbs high energy surges reliably.

 

This unidirectional device offers an ultra-fast response time of less than 1.0ps from 0V to breakdown voltage. It is rated for ESD protection up to 30kV (air and contact discharge) per IEC 61000-4-2, and operates across a junction temperature range of -55°C to 175°C.

 

The 3KP12A is housed in a P600 axial through-hole package, suitable for general-purpose circuit protection applications including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic designs. It is RoHS3 compliant, halogen free, and lead free (Pb-free E3).

3KP12A Quick Information

Product Type: TVS Diode
Series: 3KP
Canonical Name: 3KP12A Littelfuse 3000W TVS Diode
Subcategory: TVS Diode

3KP12A Compliance

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

3KP12A Features

  • 3000W peak pulse power dissipation.
  • 12V reverse standoff voltage rating.
  • Fast response time less than 1.0ps.
  • 30kV ESD rating per IEC 61000-4-2.
  • Glass passivated junction in P600 package.

3KP12A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for VCC bus overvoltage protection.
  • Used in telecom and networking equipment.
  • Suitable for industrial and consumer electronics.
  • Defends against lightning-induced surge events.

3KP12A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the peak pulse power rating of the 3KP12A?

3000W at 10/1000μs waveform.

What is the reverse standoff voltage?

12V.

What is the clamping voltage of this TVS diode?

19.9V.

What is the peak pulse current capability?

150.8A at 10/1000μs waveform.

What is the package type for the 3KP12A?

P600, Axial through-hole package.

Is the 3KP12A RoHS compliant?

Yes, it is RoHS3 compliant and halogen free.

What is the operating temperature range?

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

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