30KPA60 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 30KPA60 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This component features a 60V reverse standoff voltage rating with a 107.1V maximum clamping voltage and 297.1A peak pulse current capability in a through-hole P600 axial package.

The 30KPA60 is classified as obsolete. Identifying functionally equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production builds and field replacements.

Substiute Parts

30KPA60

LittelfuseIn Stock: 102730KPA60 Datasheet

Current PartRFQ

30KPA60A

MDE Semiconductor IncIn Stock: 206030KPA60A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30KPA60 is determined by the following critical electrical and mechanical parameters:

• Voltage Rating Match: Reverse standoff voltage of 60V and breakdown voltage minimum of 63.32V establish the primary voltage protection threshold
• Clamping Voltage: Maximum clamping voltage at peak pulse current must remain within acceptable limits for protected circuit operation
• Peak Pulse Current: 297.1A peak pulse current capability defines the transient energy handling capacity
• Power Dissipation: 30kW peak pulse power rating establishes thermal performance requirements
• Package Compatibility: P600 axial through-hole package ensures mechanical and electrical interface compatibility
• Temperature Range: Operating temperature range of -55°C to 175°C (TJ) must be maintained
• Device Type: Unidirectional Zener-type TVS diode configuration

The 30KPA60A meets all these substitution criteria and is classified as an active product, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA60A (MDE Semiconductor Inc) is the recommended substitute for the obsolete 30KPA60 (Littelfuse) based on the following engineering criteria:

Electrical Compatibility: The 30KPA60A maintains identical reverse standoff voltage (60V), peak pulse current (297.1A), and peak pulse power (30kW) ratings. The clamping voltage of 102V is lower than the original 107.1V, providing improved transient suppression performance. The breakdown voltage minimum of 67V is within acceptable tolerance relative to the original 63.32V specification.

Mechanical Compatibility: Both devices use the P600 axial through-hole package, ensuring direct board-level compatibility without design modification.

Compliance and Availability: The 30KPA60A is ROHS3 compliant and carries active product status with confirmed inventory availability (1996 pcs), eliminating supply chain risk associated with the obsolete 30KPA60.

Temperature Performance: Operating temperature range remains -55°C to 175°C (TJ), maintaining thermal performance requirements for the application.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA60A be used as a direct replacement for the 30KPA60 without circuit modification?

A: Yes. The 30KPA60A is electrically and mechanically compatible with the 30KPA60. Both devices share identical reverse standoff voltage, peak pulse current, power dissipation, operating temperature range, and P600 axial package configuration. No circuit redesign is required.

Q: What is the significance of the clamping voltage difference (107.1V vs. 102V)?

A: The 30KPA60A exhibits a lower maximum clamping voltage (102V) compared to the original 30KPA60 (107.1V). This represents improved transient suppression performance, as the protected circuit experiences a lower peak voltage during transient events. This is a beneficial characteristic for component longevity.

Q: Are there compliance differences between the two parts?

A: Both the 30KPA60 and 30KPA60A are ROHS3 compliant. The 30KPA60A additionally provides REACH compliance information upon request. No compliance barriers exist for substitution.

Q: Why is the 30KPA60 classified as obsolete?

A: The 30KPA60 is no longer in active production by Littelfuse. The 30KPA60A represents the current active equivalent in the 30KPA series, ensuring long-term component availability and supply chain continuity.

Q: Does the P600 axial package remain the same for both parts?

A: Yes. Both devices use the P600 axial through-hole package. PCB footprints, lead spacing, and mounting procedures are identical, enabling direct board-level substitution.

Q: What is the inventory status for the 30KPA60A?

A: The 30KPA60A is available with 1996 pcs in stock as new original inventory, providing immediate availability for production and replacement applications.