30KPA54C Equivalent & Substitute Parts

Part Overview

The 30KPA54C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage transient protection applications. This component features a 54V reverse standoff voltage rating with a 95.97V maximum clamping voltage and 331.5A peak pulse current capability in a through-hole P600 axial package.

The 30KPA54C is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this protection function remains required.

Substiute Parts

30KPA54C

Littelfuse Inc.In Stock: 105330KPA54C Datasheet

Current PartRFQ

30KPA54CA

MDE Semiconductor IncIn Stock: 179530KPA54CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30KPA54C is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 54V and breakdown voltage minimum of 56.98V
• Clamping Performance: Maximum clamping voltage at peak pulse current
• Current Handling: Peak pulse current of 331.5A at 10/1000µs pulse width
• Power Dissipation: Peak pulse power rating of 30kW
• Package Compatibility: Through-hole P600 axial package for direct board-level substitution
• Temperature Range: Operating range of -55°C to 175°C junction temperature
• Device Type: Zener-type TVS diode with single bidirectional channel

The 30KPA54CA meets these substitution criteria while maintaining functional and mechanical compatibility with the original 30KPA54C design.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA54CA is an active-status substitute for the obsolete 30KPA54C. Both components maintain identical reverse standoff voltage, peak pulse current, and power dissipation ratings. The 30KPA54CA demonstrates improved clamping performance with a lower maximum clamping voltage (91.4V versus 95.97V), which provides enhanced transient suppression characteristics within the same electrical operating envelope.

Both parts are ROHS3 compliant and share identical through-hole P600 axial packaging, enabling direct board-level substitution without design modification. The 30KPA54CA is currently in active production status, ensuring long-term component availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA54CA be used as a direct replacement for the 30KPA54C?

A: Yes. Both components share identical reverse standoff voltage (54V), peak pulse current (331.5A), power dissipation (30kW), operating temperature range (-55°C to 175°C), and P600 axial through-hole package. The 30KPA54CA provides equivalent functional performance for general-purpose TVS applications.

Q: What is the difference in clamping voltage between these parts?

A: The 30KPA54C has a maximum clamping voltage of 95.97V, while the 30KPA54CA has a maximum clamping voltage of 91.4V. The lower clamping voltage of the 30KPA54CA represents improved transient suppression performance within the same voltage rating class.

Q: Are both parts RoHS compliant?

A: Yes. Both the 30KPA54C and 30KPA54CA are ROHS3 compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: Why is the 30KPA54C listed as obsolete?

A: The 30KPA54C is no longer in active production. The 30KPA54CA serves as the current active equivalent, providing the same electrical and mechanical specifications with improved availability.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical package type (P600 axial), mounting method (through-hole), and electrical ratings enable direct substitution without PCB redesign or component repositioning.