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5KP18A Zener TVS diode, 18V reverse standoff, 29.2V clamping, 5kW peak pulse power, P600 axial package.
Mfr Part #:

5KP18A

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Zener TVS diode, 18V reverse standoff, 29.2V clamping, 5kW peak pulse power, P600 axial package.
Total Stock: 147 pcs
$ Price Range: $1.04 - $3.55

5KP18A Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
144 pcs
144 pcs On Request 1 On Request On Request 1970-01-01 02:44:01 On Request On Request
Non-Authorised Inventory information
3 pcs
3 pcs On Request 1 On Request On Request On Request On Request On Request

5KP18A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Current - Peak Pulse (10/1000µs)
ESD Protection (Air/Contact)
Failure Mode
Halogen Free
Maximum Instantaneous Forward Voltage
Mounting Type
Operating Temperature
Operating Temperature - Junction
Package / Case
Peak Forward Surge Current
Power
Power - Peak Pulse (10/1000μs)
Power Line Protection
Response Time
Steady State Power Dissipation
Supplier Device Package
Temperature Coefficient (Typical)
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage
Voltage - Clamping (Max) @ Ipp
Voltage - Reverse Standoff (Typ)

5KP18A Description

Short technical summary and product information.

The 5KP18A is a Zener-type transient voltage suppression (TVS) diode from Littelfuse Inc. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. With a reverse standoff voltage of 18V and a maximum clamping voltage of 29.2V at a peak pulse current of 174.7A, it provides robust protection for 18V rated circuits. The device offers a peak pulse power dissipation of 5kW (5000W) for a 10/1000µs waveform. Key features include fast response time (<1.0 ps), low dynamic resistance, and ESD protection up to 30kV (air and contact) per IEC 61000-4-2. The TVS diode is housed in a P600 axial leaded package (through-hole mounting) and operates over a junction temperature range of -55°C to 175°C. It is RoHS compliant, halogen-free, and has a Pb-free E3 terminal finish. Typical applications include general-purpose protection of I/O interfaces, VCC buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics.

5KP18A Quick Information

Product Type: TVS Diode
Series: 5KP
Canonical Name: 5KP18A Littelfuse TVS Diode (Zener, 18V, 5kW, P600)
Subcategory: Zener TVS Diode

5KP18A Compliance

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

5KP18A 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.

5KP18A Features

  • 5kW peak pulse power for 10/1000µs waveform.
  • Fast response time less than 1.0 picosecond.
  • ESD protection up to 30kV air and contact.
  • Reverse standoff voltage of 18V.
  • P600 axial leaded package.

5KP18A Applications

  • General purpose protection of sensitive circuits.
  • Used in telecom, computer, industrial, and consumer electronics.
  • Protection of I/O interfaces and VCC buses.
  • Surge protection against lightning induced transients.

5KP18A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 5KP18A?

18V.

What is the clamping voltage of the 5KP18A?

Maximum 29.2V at 174.7A peak pulse current.

What is the peak pulse current rating?

174.7A for a 10/1000µs waveform.

What package does the 5KP18A come in?

P600 axial leaded package (through-hole).

What is the peak pulse power rating?

5kW (5000W) for a 10/1000µs waveform.

What is the operating temperature range?

-55°C to 175°C (junction).

Is the 5KP18A RoHS compliant?

Yes, it is RoHS3 compliant and halogen-free.

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