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3KP40CA TVS diode from Littelfuse, 40V reverse standoff voltage, 64.5V clamping, 3000W peak pulse power. Through-hole P600 axial package.
Mfr Part #:

3KP40CA

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TVS diode from Littelfuse, 40V reverse standoff voltage, 64.5V clamping, 3000W peak pulse power. Through-hole P600 axial package.
✓ Total Stock: 490 pcs

3KP40CA Available from 1 distributor

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Bristol Electronics ✓
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490 pcs
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490 pcs On Request 1 On Request On Request On Request On Request On Request
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3KP40CA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Bidirectional Channels
Current
Forward Voltage
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Package / Case
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Supplier Device Package
Termination Style
Type
Voltage
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3KP40CA Description

Short technical summary and product information.

The Littelfuse 3KP40CA is a bidirectional Zener TVS diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It features a reverse standoff voltage of 40V and a clamping voltage of 64.5V at a peak pulse current of 46.5A. With a peak pulse power dissipation of 3000W (10/1000μs waveform) and an extremely fast response time of less than 1ps, it provides robust protection for I/O interfaces, VCC bus lines, and other vulnerable circuits in telecom, computer, industrial, and consumer applications.

 

The device is housed in a P600 axial through-hole package with matte tin lead finish, rated for operating junction temperatures from -55°C to 175°C. It is RoHS3 compliant, halogen free, and features a glass passivated chip junction for reliability. The 3KP40CA also meets IEC 61000-4-2 ESD requirements (30kV air/contact) and IEC 61000-4-4 EFT standards. Its typical failure mode is short circuit under over-specified voltage or current conditions.

3KP40CA Quick Information

Product Type: TVS Diode
Series: 3KP
Canonical Name: Littelfuse 3KP40CA TVS Diode, 40V Reverse Standoff, 64.5V Clamping, P600 Axial
Subcategory: Transient Voltage Suppression Diode

3KP40CA Compliance

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

3KP40CA Features

  • 3000W peak pulse power dissipation.
  • 40V reverse standoff voltage.
  • Fast response time less than 1ps.
  • Bidirectional protection for one channel.
  • Through-hole P600 axial package.

3KP40CA Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for VCC bus protection in telecom.
  • Used in industrial and consumer electronics.
  • Ideal for lightning-induced transient suppression.

3KP40CA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 3KP40CA?

40V.

What is the clamping voltage of the 3KP40CA?

64.5V at 46.5A peak pulse current.

What is the peak pulse current rating?

46.5A for a 10/1000μs waveform.

What package is the 3KP40CA available in?

P600 axial through-hole package.

What is the peak pulse power rating?

3000W for a 10/1000μs waveform.

What is the operating temperature range?

-55°C to 175°C (junction).

Is the 3KP40CA RoHS compliant?

Yes, RoHS3 compliant and halogen free.

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