30KPA102 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 30KPA102 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 102V reverse standoff voltage rating with a maximum clamping voltage of 173.88V at peak pulse current, capable of handling 183A peak pulse current with 30kW peak pulse power dissipation. The part is packaged in a P600 axial through-hole configuration and operates across a temperature range of -55°C to 175°C.

The 30KPA102 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

30KPA102

Littelfuse Inc.In Stock: 89930KPA102 Datasheet

Current PartRFQ

30KPA102A

MDE Semiconductor IncIn Stock: 201830KPA102A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30KPA102 is determined by the following critical parameters:

• Reverse Standoff Voltage (Typ): Must match 102V to ensure correct circuit protection threshold
• Peak Pulse Current Rating: Must equal or exceed 183A to handle transient events without degradation
• Peak Pulse Power Dissipation: Must equal or exceed 30kW to safely absorb energy during fault conditions
• Clamping Voltage (Max) @ Ipp: Must not exceed 173.88V to prevent overstress of protected circuitry
• Package / Case: Must be P600 axial through-hole to ensure mechanical and electrical compatibility
• Operating Temperature Range: Must encompass -55°C to 175°C (TJ) for thermal compatibility
• Unidirectional Configuration: Must maintain single-channel Zener-type topology

The 30KPA102A meets all substitution criteria and is classified as an equivalent part.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA102A is a direct functional equivalent to the 30KPA102. Both components share identical reverse standoff voltage, peak pulse current, and peak pulse power ratings. The 30KPA102A demonstrates superior clamping voltage performance (165.6V versus 173.88V), providing enhanced protection margins for downstream circuitry.

The 30KPA102A is manufactured by MDE Semiconductor Inc and maintains active product status, ensuring long-term availability and supply chain continuity. Both parts are ROHS3 compliant and carry equivalent environmental certifications (ECCN: EAR99, HTSUS: 8541.10.0080).

The 30KPA102A is suitable for direct substitution in all applications where the 30KPA102 was originally specified, with no circuit modifications required.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA102A be used as a direct replacement for the 30KPA102?

A: Yes. The 30KPA102A meets all electrical and mechanical substitution criteria. Both components feature identical reverse standoff voltage (102V), peak pulse current (183A), and peak pulse power (30kW) ratings. Package configuration (P600 axial through-hole) and operating temperature range (-55°C to 175°C) are identical.

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

A: The 30KPA102A exhibits a lower maximum clamping voltage (165.6V) compared to the 30KPA102 (173.88V). This represents improved performance, as lower clamping voltage provides better protection for sensitive downstream components during transient events.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and carry identical export classifications (ECCN: EAR99, HTSUS: 8541.10.0080). The 30KPA102A includes REACH compliance documentation available upon request.

Q: Why is the 30KPA102 classified as obsolete?

A: The 30KPA102 has reached end-of-life status with the original manufacturer (Littelfuse Inc.). The 30KPA102A, manufactured by MDE Semiconductor Inc, maintains active product status and is the recommended alternative for new designs and production continuity.

Q: Are there any thermal or environmental limitations when substituting?

A: No. Both components operate across the identical temperature range (-55°C to 175°C junction temperature) and are suitable for equivalent thermal environments. Moisture sensitivity levels differ (30KPA102 is not applicable; 30KPA102A is MSL 1 - Unlimited), but this does not affect operational compatibility.

Q: What inventory status should be considered for procurement?

A: The 30KPA102 has 888 pieces available as new original stock. The 30KPA102A has 1949 pieces available as new original stock in bulk packaging, providing superior long-term availability for production requirements.