15KP40CA-TP Equivalent & Substitute Parts

Part Overview

The 15KP40CA-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient voltage protection applications. This bidirectional zener diode operates with a 40V reverse standoff voltage and provides 15kW peak pulse power dissipation capability. The component is actively produced and ROHS3 compliant, making it suitable for modern electronic circuit protection requirements. Substitute parts may be required due to inventory availability, packaging preferences, or specific application constraints while maintaining equivalent electrical performance.

Substiute Parts

15KP40CA-TP

Micro Commercial CoIn Stock: 99415KP40CA-TP Datasheet

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15KPA40CA

MDE Semiconductor IncIn Stock: 133015KPA40CA Datasheet

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5KP40CA

Diotec SemiconductorIn Stock: 42335KP40CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 15KP40CA-TP are qualified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 40V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 65.8V or lower (acceptable range for protection circuits)
• Power - Peak Pulse: 15000W or higher (equal or greater dissipation capability)
• Mounting Type: Through Hole (mechanical compatibility)
• Bidirectional Channels: 1 (functional equivalence)
• Type: Zener (device classification)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The 15KPA40CA and 5KP40CA meet the core voltage and mounting requirements. However, the 5KP40CA operates at reduced peak pulse power (5000W versus 15000W), making it suitable only for applications with lower transient energy requirements.

Parameter Comparison

Engineering Selection Recommendations

15KPA40CA (Primary Substitute): This part provides full electrical equivalence to the 15KP40CA-TP with identical voltage ratings and peak pulse power (15000W). Both components are ROHS3 compliant and actively produced. The primary difference is packaging format (Bulk versus Tape & Reel) and physical package designation (P600 versus R-6). Selection of this substitute is appropriate when bulk packaging is acceptable or when tape & reel inventory is unavailable.

5KP40CA (Limited Substitute): This part maintains voltage compatibility (40V standoff, 64.5V clamping) and is ROHS3 compliant. However, peak pulse power is reduced to 5000W, representing one-third the dissipation capability of the main part. This substitute is suitable only for applications with lower transient energy requirements or where the circuit design accommodates reduced power handling. The operating temperature minimum is -50°C versus -55°C for the main part, representing a narrower temperature range.

Frequently Asked Questions (FAQ)

Q: Can the 15KPA40CA be used as a direct replacement for the 15KP40CA-TP?

A: Yes, the 15KPA40CA provides electrical equivalence with identical voltage ratings and peak pulse power. The primary differences are packaging format and physical package type. Mechanical fit must be verified for the specific application.

Q: What is the key limitation of the 5KP40CA as a substitute?

A: The 5KP40CA operates at 5000W peak pulse power versus 15000W for the main part. This reduced power dissipation capability limits its use to applications with lower transient energy. Voltage ratings remain compatible.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all three parts (15KP40CA-TP, 15KPA40CA, and 5KP40CA) are ROHS3 compliant, meeting current regulatory requirements.

Q: Does package type affect electrical performance?

A: No. The R-6 and P600 package designations are physical form factors for axial through-hole mounting. Electrical performance is determined by the die and internal circuit design, not the package type.

Q: What is the temperature operating range difference between parts?

A: The 15KP40CA-TP and 15KPA40CA operate from -55°C to 175°C. The 5KP40CA operates from -50°C to 175°C, providing a 5°C narrower minimum temperature range.

Q: Can packaging format affect part selection?

A: Yes. The 15KP40CA-TP and 5KP40CA are supplied in Tape & Reel format, suitable for automated assembly. The 15KPA40CA is supplied in Bulk format, requiring manual handling or alternative assembly processes.