30KPA270 Equivalent & Substitute Parts

Part Overview

The 30KPA270 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 270V reverse standoff voltage rating and 458.01V maximum clamping voltage with 69.5A peak pulse current capability in a through-hole P600 axial package.

The 30KPA270 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

30KPA270

Littelfuse Inc.In Stock: 90030KPA270 Datasheet

Current PartRFQ

30KPA270A

MDE Semiconductor IncIn Stock: 207230KPA270A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30KPA270 is determined by the following critical parameters:

• Reverse standoff voltage: 270V (nominal)
• Peak pulse current capability: 69.5A minimum
• Peak pulse power dissipation: 30000W minimum
• Package type: P600 axial through-hole
• Unidirectional Zener TVS diode configuration
• Operating temperature range: -55°C to 175°C (TJ)
• RoHS3 compliance status

The 30KPA270A meets all substitution criteria. Both parts maintain identical reverse standoff voltage, peak pulse current, power dissipation, package configuration, and thermal operating range. The substitute part is manufactured by MDE Semiconductor Inc. and carries active product status with ROHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA270A is a direct functional equivalent for the obsolete 30KPA270. Both components share identical electrical performance specifications for reverse standoff voltage, peak pulse current, and power dissipation ratings. The substitute part operates within the same thermal range and maintains the same through-hole P600 axial package configuration, ensuring mechanical and electrical compatibility in existing circuit designs.

The 30KPA270A carries active product status from MDE Semiconductor Inc., providing assured long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance certification, satisfying regulatory requirements for new production applications.

The 30KPA270A exhibits a lower maximum clamping voltage (436.2V versus 458.01V) and higher minimum breakdown voltage (301.6V versus 285.01V), both of which represent tighter specification tolerances that remain within acceptable operating parameters for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA270A be used as a direct replacement for the 30KPA270 in existing designs?

A: Yes. The 30KPA270A is electrically and mechanically compatible. Both parts maintain identical reverse standoff voltage (270V), peak pulse current (69.5A), power dissipation (30kW), and package configuration (P600 axial through-hole). The substitute part can be installed without circuit modification.

Q: What is the significance of the different clamping voltage specifications between these parts?

A: The 30KPA270A exhibits a lower maximum clamping voltage (436.2V) compared to the original part (458.01V). This represents a tighter specification tolerance and provides improved transient voltage suppression performance. The lower clamping voltage is compatible with circuit designs rated for the original part's specifications.

Q: Why does the 30KPA270A have a higher minimum breakdown voltage?

A: The 30KPA270A minimum breakdown voltage of 301.6V versus 285.01V reflects manufacturing tolerance differences between suppliers. Both values remain above the 270V reverse standoff voltage, ensuring proper device operation. This specification variance is within acceptable engineering tolerances for TVS diode applications.

Q: Is the P600 axial package identical between both parts?

A: Yes. Both the 30KPA270 and 30KPA270A use the P600 axial through-hole package configuration. No PCB layout modifications or mechanical changes are required for substitution.

Q: What compliance certifications apply to the 30KPA270A?

A: The 30KPA270A is ROHS3 compliant and carries REACH compliance information available upon request from MDE Semiconductor Inc. These certifications match the regulatory status of the original 30KPA270.

Q: Is the 30KPA270A currently available?

A: Yes. The 30KPA270A carries active product status with 1995 pieces in new original stock, ensuring immediate availability for production requirements.