30KPA71C Equivalent & Substitute Parts

Part Overview

The 30KPA71C is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This component features a 71V reverse standoff voltage with a maximum clamping voltage of 117.08V at peak pulse current, housed in a P600 axial through-hole package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where legacy component specifications must be maintained.

Substiute Parts

30KPA71C

LittelfuseIn Stock: 99830KPA71C Datasheet

Current PartRFQ

30KPA71CA

MDE Semiconductor IncIn Stock: 196130KPA71CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30KPA71C is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Reverse standoff voltage: 71V (nominal)
• Peak pulse current capability: 271.7A at 10/1000µs pulse width
• Peak pulse power dissipation: 30000W (30kW)
• Bidirectional channel configuration: 1 channel
• Zener diode type classification

Mechanical Equivalence Criteria:

• Package type: P600 axial through-hole
• Mounting configuration: Through-hole compatible with P600 footprint
• Operating temperature range: -55°C to 175°C (TJ)

Compliance Equivalence Criteria:

• RoHS3 compliance status
• ECCN and HTSUS classification alignment

The substitute part 30KPA71CA meets all specified electrical and mechanical parameters while maintaining full compliance with applicable regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA71CA serves as a direct functional equivalent to the obsolete 30KPA71C for applications requiring 71V reverse standoff protection with 271.7A peak pulse current handling in a P600 axial package. Both components maintain identical electrical performance specifications across peak pulse current, power dissipation, and operating temperature range.

The 30KPA71CA is manufactured by MDE Semiconductor Inc and carries active product status with full ROHS3 compliance certification. This substitute provides improved supply chain availability compared to the obsolete 30KPA71C, with documented inventory of 1930 units in stock versus 899 units for the original part.

The clamping voltage differential (111.5V for 30KPA71CA versus 117.08V for 30KPA71C) represents a 5% reduction in maximum clamping voltage. This characteristic provides enhanced overvoltage protection margin in applications where the protected circuit can tolerate lower clamping thresholds. The substitute's lower clamping voltage does not compromise protection effectiveness and may provide superior transient suppression performance in sensitive circuit applications.

Both components are classified under identical ECCN (EAR99) and HTSUS (8541.10.0080) codes, confirming regulatory and trade classification equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA71CA be used as a direct replacement for the 30KPA71C in existing designs?

A: Yes. The 30KPA71CA maintains identical reverse standoff voltage (71V), peak pulse current (271.7A), peak pulse power (30kW), operating temperature range (-55°C to 175°C), and P600 axial through-hole package configuration. Both components are Zener-type bidirectional TVS diodes with single-channel configuration.

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

A: The 30KPA71CA exhibits a maximum clamping voltage of 111.5V compared to 117.08V for the 30KPA71C. This 5% reduction means the substitute will clamp transient overvoltages at a slightly lower threshold, providing enhanced protection margin for downstream circuitry. This characteristic is advantageous in applications where lower clamping voltages improve system reliability.

Q: Are both parts RoHS compliant?

A: Yes. Both the 30KPA71C and 30KPA71CA are ROHS3 compliant. The 30KPA71CA additionally specifies Moisture Sensitivity Level (MSL) 1 (Unlimited) and indicates REACH compliance information is available upon request.

Q: What is the difference in product status between these components?

A: The 30KPA71C is classified as obsolete, indicating discontinued manufacturing. The 30KPA71CA maintains active product status with current production and documented inventory availability of 1930 units. This status difference makes the 30KPA71CA the recommended selection for new designs and ongoing system support.

Q: Are the P600 packages mechanically identical?

A: Yes. Both components use P600 axial through-hole packaging, ensuring identical mechanical compatibility with existing PCB layouts and assembly processes. No board redesign or component footprint modification is required for substitution.

Q: What are the regulatory classifications for these parts?

A: Both components are classified under ECCN EAR99 and HTSUS 8541.10.0080, confirming identical export control and tariff classification status.