Littelfuse 30KPA102C TVS Diode Equivalent & Substitute Parts

Part Overview

The Littelfuse 30KPA102C is a transient voltage suppressor (TVS) diode designed for general-purpose overvoltage protection applications. This bidirectional Zener diode features a 102V reverse standoff voltage with a 173.88V maximum clamping voltage and 183A 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

30KPA102C

Littelfuse Inc.In Stock: 117830KPA102C Datasheet

Current PartRFQ

30KPA102CA

MDE Semiconductor IncIn Stock: 204530KPA102CA Datasheet

DirectRFQ

30KP102CA-TP

Micro Commercial CoIn Stock: 78230KP102CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30KPA102C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must equal 102V
• Current - Peak Pulse (10/1000µs): Must equal 183A
• Power - Peak Pulse: Must equal 30000W
• Operating Temperature Range: Must support -55°C to 175°C (TJ)
• Mounting Type: Must be Through Hole
• Type: Must be Zener
• Bidirectional Channels: Must equal 1
• Applications: Must support General Purpose

The substitute parts identified maintain these core electrical and mechanical specifications. Variations in voltage clamping characteristics and package designations are permitted within the scope of functional equivalence, provided all critical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status, ensuring ongoing availability and manufacturing support. The 30KPA102CA, manufactured by MDE Semiconductor Inc, retains the identical P600 axial package designation and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The 30KP102CA-TP, manufactured by Micro Commercial Co, provides functional equivalence with a different axial package designation (R-6) and REACH unaffected status.

Selection between substitute options should be based on package compatibility with existing PCB layouts and procurement lead times. Both parts satisfy the electrical performance requirements of the obsolete 30KPA102C across the specified operating temperature range and pulse current conditions.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA102CA be used as a direct replacement for the 30KPA102C?

A: Yes. The 30KPA102CA maintains identical reverse standoff voltage (102V), peak pulse current (183A), power dissipation (30000W), operating temperature range (-55°C to 175°C), and package designation (P600, Axial). The lower clamping voltage (165.6V vs 173.88V) represents improved performance characteristics within the functional specification.

Q: What is the primary difference between the 30KPA102CA and 30KP102CA-TP?

A: Both parts share identical electrical specifications. The primary difference is the package designation: 30KPA102CA uses P600 axial packaging, while 30KP102CA-TP uses R-6 axial packaging. PCB layout compatibility should determine selection.

Q: Are there any compliance or certification differences between the substitute parts?

A: The 30KPA102CA is ROHS3 compliant with MSL 1 (Unlimited). The 30KP102CA-TP is REACH unaffected. Both parts carry EAR99 ECCN classification and HTSUS code 8541.10.0080. Verify compliance requirements for your specific application.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed. Mechanical interchangeability depends on package compatibility. Verify that the selected substitute's package designation (P600 or R-6) matches your PCB footprint before implementation.

Q: What inventory status should I consider when selecting a substitute?

A: The 30KPA102CA has 1974 units in stock, and the 30KP102CA-TP has 739 units in stock. Both represent active production components with established supply chains, unlike the obsolete 30KPA102C.