30KPA75 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 30KPA75 is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 75V reverse standoff voltage rating with a maximum clamping voltage of 125.37V at peak pulse current, housed in a P600 axial through-hole package.

The 30KPA75 is classified as obsolete. Identifying qualified substitute components is necessary to maintain design continuity and ensure continued availability for production and repair applications. Substitute parts must maintain electrical equivalence across critical parameters including reverse standoff voltage, peak pulse current capability, and clamping voltage performance.

Substiute Parts

30KPA75

Littelfuse Inc.In Stock: 97830KPA75 Datasheet

Current PartRFQ

30KPA75A

MDE Semiconductor IncIn Stock: 202630KPA75A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30KPA75 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Reverse standoff voltage: 75V (nominal)
• Peak pulse current capability: 253.8A at 10/1000µs waveform
• Peak pulse power dissipation: 30000W
• Operating temperature range: -55°C to 175°C (TJ)
• Unidirectional topology: Single channel Zener-type TVS diode

Mechanical Equivalence Criteria:

• Package type: P600 axial through-hole
• Mounting configuration: Through-hole

Compliance Criteria:

• RoHS3 compliance required
• ECCN and HTSUS classifications must align

The 30KPA75A qualifies as a direct substitute based on matching all critical electrical parameters (75V standoff, 253.8A peak pulse current, 30kW peak power) and mechanical specifications (P600 axial package, through-hole mounting). The 30KPA75A maintains full RoHS3 compliance and identical regulatory classifications.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA75A is qualified as a direct substitute for the obsolete 30KPA75. Both components maintain identical reverse standoff voltage (75V), peak pulse current (253.8A), and peak pulse power (30kW) specifications. The 30KPA75A demonstrates improved clamping voltage performance (119.4V versus 125.37V), which provides superior transient suppression characteristics within the same electrical class.

Both parts carry ROHS3 compliance certification and identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0080), ensuring regulatory equivalence. The 30KPA75A is currently in active production status with established supply availability, whereas the 30KPA75 is obsolete. The P600 axial through-hole package is identical between both components, permitting direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA75A be used as a direct replacement for the 30KPA75 in existing designs?

A: Yes. The 30KPA75A maintains electrical equivalence across all critical parameters: 75V reverse standoff voltage, 253.8A peak pulse current, and 30kW peak pulse power. Both components use the P600 axial through-hole package, enabling direct substitution without circuit board redesign.

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

A: The 30KPA75 specifies a maximum clamping voltage of 125.37V at peak pulse current, while the 30KPA75A specifies 119.4V. The lower clamping voltage of the 30KPA75A represents improved transient suppression performance and remains within acceptable operating parameters for applications designed for the 30KPA75.

Q: Are both parts RoHS compliant?

A: Yes. Both the 30KPA75 and 30KPA75A carry ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the product status difference?

A: The 30KPA75 is classified as obsolete, indicating discontinued manufacturing and limited availability. The 30KPA75A is in active production status, ensuring reliable long-term supply for new designs and production requirements.

Q: Are there any package or mounting differences between these components?

A: No. Both components use the P600 axial through-hole package with identical mechanical specifications, permitting direct board-level substitution without modification to PCB layouts or assembly procedures.

Q: Do both parts have the same regulatory classifications?

A: Yes. Both components carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, ensuring regulatory equivalence for export, import, and compliance documentation purposes.