30KPA144C Equivalent & Substitute Parts

Part Overview

The 30KPA144C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This component features a 144V reverse standoff voltage with a 234.36V maximum clamping voltage and 135.8A peak pulse current capability. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent performance is required.

Substiute Parts

30KPA144C

Littelfuse Inc.In Stock: 109730KPA144C Datasheet

Current PartRFQ

30KPA144CA

MDE Semiconductor IncIn Stock: 215530KPA144CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30KPA144C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must match 144V to ensure proper circuit protection threshold
• Voltage - Clamping (Max) @ Ipp: Must not exceed 234.36V to maintain transient suppression performance
• Current - Peak Pulse (10/1000µs): Must equal or exceed 135.8A to handle specified surge conditions
• Power - Peak Pulse: Must equal or exceed 30000W to dissipate transient energy
• Operating Temperature Range: Must encompass -55°C to 175°C (TJ) for thermal compatibility
• Package / Case: Must be P600, Axial for mechanical and electrical compatibility
• Type: Must be Zener for functional equivalence
• Bidirectional Channels: Must equal 1 for circuit topology compatibility

The 30KPA144CA meets all substitution criteria and is classified as an active product, providing a viable alternative to the obsolete 30KPA144C.

Parameter Comparison

Engineering Selection Recommendations

The 30KPA144CA is a direct substitute for the obsolete 30KPA144C. Both components are ROHS3 compliant and share identical electrical specifications for reverse standoff voltage, peak pulse current, and power dissipation. The 30KPA144CA offers the additional advantage of active product status, ensuring continued availability and supply chain reliability.

The 30KPA144CA exhibits a lower maximum clamping voltage (223.2V versus 234.36V), which provides improved transient suppression performance while remaining within acceptable circuit protection parameters. The higher minimum breakdown voltage (160.8V versus 151.96V) of the substitute part is compatible with the 144V standoff specification and does not compromise circuit functionality.

Selection of the 30KPA144CA is appropriate for applications requiring equivalent TVS diode performance with the assurance of ongoing manufacturer support and compliance certification.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA144CA directly replace the 30KPA144C in existing designs?

A: Yes. Both components share identical reverse standoff voltage (144V), peak pulse current (135.8A), power dissipation (30kW), operating temperature range (-55°C to 175°C), and P600 axial package configuration. The 30KPA144CA is electrically and mechanically compatible for direct substitution.

Q: What is the significance of the lower clamping voltage in the 30KPA144CA?

A: The 30KPA144CA exhibits a maximum clamping voltage of 223.2V compared to 234.36V in the 30KPA144C. This lower clamping voltage indicates improved transient suppression efficiency, as the diode clamps transient overvoltages to a lower peak level, providing enhanced circuit protection without compromising performance.

Q: Are there compliance differences between the two parts?

A: Both the 30KPA144C and 30KPA144CA are ROHS3 compliant. The 30KPA144CA additionally provides REACH compliance information upon request, offering expanded regulatory documentation for applications requiring comprehensive environmental and safety certification.

Q: Why is the 30KPA144C classified as obsolete?

A: The 30KPA144C is no longer in active production. The 30KPA144CA, manufactured by MDE Semiconductor Inc., represents the active equivalent in the 30KPA series and is the recommended component for new designs and replacement applications.

Q: Does the P600 axial package remain unchanged?

A: Yes. Both components utilize the P600 axial through-hole package, ensuring identical PCB footprint, mounting procedures, and mechanical compatibility. No design modifications are required for package accommodation.