5KP150 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 5KP150 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This component features a 150V reverse standoff voltage rating and 5kW peak pulse power handling capability in a through-hole P600 axial package.

The 5KP150 is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

5KP150

LittelfuseIn Stock: 8785KP150 Datasheet

Current PartRFQ

5KP150A

Littelfuse Inc.In Stock: 33925KP150A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP150 is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): Must equal 150V
• Unidirectional Channels: Must equal 1
• Type: Must be Zener
• Mounting Type: Must be Through Hole
• Package / Case: Must be P600, Axial
• Power - Peak Pulse: Must equal or exceed 5000W (5kW)
• Operating Temperature Range: Must encompass -55°C ~ 175°C (TJ)
• RoHS Status: Must maintain ROHS3 Compliance

The 5KP150A qualifies as a direct substitute based on these parameters. Both components share identical reverse standoff voltage, package configuration, power rating, temperature range, and RoHS compliance status. The 5KP150A is currently in active production status, making it the appropriate replacement for the obsolete 5KP150.

Parameter Comparison

Engineering Selection Recommendations

The 5KP150A is the appropriate substitute for the obsolete 5KP150. Both components maintain identical electrical specifications for reverse standoff voltage, peak pulse power rating, and operating temperature range. The 5KP150A is currently in active production status with confirmed inventory availability, ensuring supply chain continuity.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory and environmental requirements. The through-hole P600 axial package configuration is identical, permitting direct board-level substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can the 5KP150A be used as a direct replacement for the 5KP150 in existing designs?

A: Yes. The 5KP150A is a direct substitute. Both components share identical reverse standoff voltage (150V), peak pulse power rating (5kW), operating temperature range (-55°C to 175°C), and P600 axial through-hole package configuration. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The 5KP150 is classified as obsolete. The 5KP150A is the active production equivalent from the same manufacturer, ensuring continued component availability.

Q: Are there differences in clamping voltage between these parts?

A: The 5KP150A exhibits a lower maximum clamping voltage (243V) compared to the 5KP150 (255.15V). Both values remain within acceptable operating parameters for general-purpose transient voltage suppression applications at the specified 150V reverse standoff rating.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 5KP150 and 5KP150A are ROHS3 compliant with MSL Level 1 rating, satisfying equivalent regulatory and environmental requirements.

Q: Is PCB layout modification necessary when substituting the 5KP150A for the 5KP150?

A: No. Both components use identical P600 axial through-hole packaging, permitting direct pin-for-pin substitution without PCB redesign or layout changes.