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5KP45A The 5KP45A is a 5kW unidirectional TVS diode from Littelfuse with a 45V reverse standoff voltage and 72.7V clamping voltage, housed in a P600 axial package.
Mfr Part #:

5KP45A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The 5KP45A is a 5kW unidirectional TVS diode from Littelfuse with a 45V reverse standoff voltage and 72.7V clamping voltage, housed in a P600 axial package.
Total Stock: 22 pcs
$ Price Range: $1.04 - $3.55

5KP45A Available from 1 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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22 pcs
22 pcs On Request 1 On Request On Request On Request On Request On Request

5KP45A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Clamping Voltage
Current
Forward Voltage
Halogen Free
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Number of Unidirectional Channels
Operating Temperature
Operating Temperature Range
Package / Case
Peak Forward Surge Current
Peak Pulse Current
Peak Pulse Power
Power
Power Line Protection
Response Time
Reverse Standoff Voltage
Steady State Power Dissipation
Supplier Device Package
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

5KP45A Description

Short technical summary and product information.

The 5KP45A is a 5kW peak pulse power TVS diode from Littelfuse's 5KP series, designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It features a 45V reverse standoff voltage (VRWM) and a maximum clamping voltage of 72.7V at a peak pulse current of 70.2A (10/1000μs waveform). The device is unidirectional with a single Zener junction, offering fast response time typically less than 1.0ps from 0V to breakdown voltage.

 

This TVS diode is suitable for general-purpose applications including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. It is housed in a through-hole P600 axial package, rated for operating temperatures from -55°C to 175°C. The device is RoHS compliant and halogen free, with UL recognized flammability rating V-0.

5KP45A Quick Information

Product Type: TVS Diode
Series: 5KP
Canonical Name: 5KP45A TVS Diode, 45V Reverse Standoff, 72.7V Clamping, 5kW Peak Pulse Power, P600 Axial
Subcategory: Unidirectional Zener TVS

5KP45A Compliance

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

5KP45A Estimated Pricing

Qty Low High
1+ $3.55 $3.55
10+ $2.31 $2.31
100+ $1.60 $1.60
800+ $1.04 $1.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

5KP45A Features

  • 5kW peak pulse power capability at 10/1000μs waveform.
  • 45V reverse standoff voltage with 72.7V clamping.
  • Fast response time typically less than 1.0ps.
  • Through-hole P600 axial package for easy mounting.
  • RoHS compliant and halogen free design.

5KP45A Applications

  • Protect I/O interfaces from voltage transients.
  • Safeguard VCC bus in telecom equipment.
  • Used in industrial and consumer electronics.
  • Ideal for lightning-induced surge protection.

5KP45A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 5KP45A?

45V.

What is the clamping voltage of the 5KP45A?

72.7V at peak pulse current.

What is the peak pulse power rating?

5000W (5kW) for 10/1000μs waveform.

What package is the 5KP45A available in?

P600 axial through-hole package.

What is the peak pulse current rating?

70.2A for 10/1000μs waveform.

What is the operating temperature range?

-55°C to 175°C.

Is the 5KP45A RoHS compliant?

Yes, RoHS compliant and halogen free.

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