30KP43CA-TP Equivalent & Substitute Parts

Part Overview

The 30KP43CA-TP is a transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection applications. This through-hole axial component operates across a wide temperature range (-55°C to 175°C) and provides 30kW peak pulse power handling capability with a 43V reverse standoff voltage. The part is Active status and fully RoHS3 compliant, making it suitable for modern electronic circuit protection requirements. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

30KP43CA-TP

Micro Commercial CoIn Stock: 115130KP43CA-TP Datasheet

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5KP43CA

Littelfuse Inc.In Stock: 43425KP43CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30KP43CA-TP is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must be 43V
• Voltage - Breakdown (Min): Must be within acceptable range (47.8V to 48V)
• Bidirectional Channels: Must be 1
• Mounting Type: Must be Through Hole
• Package / Case: Must be Axial configuration
• Operating Temperature Range: Must support -55°C ~ 175°C
• RoHS Status: Must be ROHS3 Compliant

The 5KP43CA from Littelfuse Inc. meets all substitution criteria. While it operates at a lower peak pulse power rating (5kW versus 30kW), it maintains identical reverse standoff voltage, compatible breakdown voltage, single bidirectional channel configuration, through-hole axial mounting, and equivalent temperature operating range with matching RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The 5KP43CA qualifies as a functional substitute based on matching voltage specifications (43V reverse standoff, 47.8V breakdown minimum, 69.4V clamping maximum) and identical operating temperature range. Both parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment for current applications.

Selection between the main part and substitute should be based on application power dissipation requirements. The 30KP43CA-TP provides 30kW peak pulse power handling, while the 5KP43CA provides 5kW peak pulse power handling. Applications requiring the full 30kW capability must use the main part. Applications with peak pulse power requirements at or below 5kW can utilize the 5KP43CA substitute without performance degradation in voltage protection characteristics.

Both parts are through-hole axial components with single bidirectional channels, ensuring mechanical and electrical compatibility in circuit board layouts designed for either package footprint.

Frequently Asked Questions (FAQ)

Q: Can the 5KP43CA replace the 30KP43CA-TP in all applications?

A: The 5KP43CA maintains identical voltage protection characteristics (43V standoff, 47.8V breakdown, 69.4V clamping) and operating temperature range. Substitution is valid only when application peak pulse power requirements do not exceed 5kW. Applications requiring 30kW peak pulse power handling must use the 30KP43CA-TP.

Q: Are the package dimensions compatible between R-6 and P600 axial packages?

A: Both the 30KP43CA-TP (R-6 axial) and 5KP43CA (P600 axial) are through-hole axial components. Physical dimensions differ between package types. Circuit board layout and lead spacing must accommodate the specific package selected.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the 30KP43CA-TP and 5KP43CA are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component procurement.

Q: What is the primary difference between these substitute parts?

A: The primary difference is peak pulse power rating. The 30KP43CA-TP handles 30kW, while the 5KP43CA handles 5kW. Voltage protection performance and operating temperature range are equivalent.

Q: Can I use the 30KP43CA-TP in place of the 5KP43CA?

A: Yes. The 30KP43CA-TP can be used in applications designed for the 5KP43CA, as it provides superior power handling capability (30kW versus 5kW) while maintaining identical voltage specifications and operating temperature range.