15KP45A-TP Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 15KP45A-TP is an active Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection applications. This unidirectional Zener diode features a 45V reverse standoff voltage with 73V maximum clamping voltage and 15kW peak pulse power handling capability. The component is housed in an R-6 axial through-hole package and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the TVS diode category.

Substiute Parts

15KP45A-TP

Micro Commercial CoIn Stock: 77715KP45A-TP Datasheet

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15KPA45A

MDE Semiconductor IncIn Stock: 213015KPA45A Datasheet

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5KP45A

Littelfuse Inc.In Stock: 30585KP45A Datasheet

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5KP45A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 14105KP45A-E3/54 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 15KP45A-TP are identified based on the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - Reverse Standoff: 45V (exact match required)
• Voltage - Breakdown (Min): 50V to 50.3V range
• Voltage - Clamping (Max) @ Ipp: 72.7V to 73V range
• Unidirectional Channels: 1 (single channel)
• Type: Zener diode
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Secondary Considerations:

• Power - Peak Pulse: 5000W to 15000W (substitutes with lower power ratings acceptable for applications not requiring full 15kW capacity)
• Package / Case: R-6 or P600 axial packages (both through-hole axial configurations)
• Product Status: Active

The 15KPA45A, 5KP45A, and 5KP45A-E3/54 meet these substitution criteria with matching voltage specifications and thermal operating ranges. Differences in peak pulse power and package designations are noted for application-specific selection.

Parameter Comparison

Engineering Selection Recommendations

15KPA45A (MDE Semiconductor Inc): This substitute maintains identical 15kW peak pulse power rating and matches all critical voltage parameters (45V standoff, 50.3V breakdown, 72.8V clamping). The P600 package provides equivalent through-hole axial configuration. ROHS3 compliance and unlimited MSL rating align with the main part. Selection is appropriate for applications requiring full 15kW capacity with P600 package compatibility.

5KP45A (Littelfuse Inc.): This substitute matches voltage specifications (45V standoff, 50V breakdown, 72.7V clamping) and thermal operating range. Peak pulse power is reduced to 5kW. The P600 package is compatible with through-hole mounting. ROHS3 compliance and unlimited MSL rating are maintained. Selection is appropriate for applications where 5kW peak pulse power is sufficient and P600 package is acceptable.

5KP45A-E3/54 (Vishay General Semiconductor - Diodes Division): This TransZorb® series substitute matches voltage specifications (45V standoff, 50V breakdown, 72.7V clamping) and thermal operating range. Peak pulse power is 5kW. The P600 package provides through-hole axial configuration. ROHS3 compliance and unlimited MSL rating are maintained. Selection is appropriate for applications compatible with 5kW peak pulse power and P600 package requirements.

All substitute parts maintain active product status and full regulatory compliance (ROHS3, EAR99, HTSUS 8541.10.0080).

Frequently Asked Questions (FAQ)

Q: What determines if a TVS diode can substitute for the 15KP45A-TP?

A: Substitution is determined by matching the reverse standoff voltage (45V), breakdown voltage range (50V to 50.3V), clamping voltage range (72.7V to 73V), unidirectional channel configuration (1 channel), and through-hole axial mounting type. All substitute parts must maintain the same operating temperature range (-55°C to 175°C) and regulatory compliance status.

Q: Can I use the 5KP45A or 5KP45A-E3/54 in place of the 15KP45A-TP?

A: Yes, these parts are electrically compatible substitutes for voltage protection applications. However, they have reduced peak pulse power (5kW versus 15kW). Use these substitutes only in applications where the lower power rating is acceptable. Verify that your circuit design does not require the full 15kW capacity.

Q: What is the difference between the R-6 and P600 packages?

A: Both R-6 and P600 are through-hole axial package configurations for TVS diodes. The primary difference is the physical package designation used by different manufacturers. Both are compatible with standard through-hole PCB mounting. Verify mechanical fit in your specific PCB layout before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (15KPA45A, 5KP45A, and 5KP45A-E3/54) are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the compliance profile of the 15KP45A-TP.

Q: Which substitute should I choose if I need 15kW peak pulse power?

A: The 15KPA45A from MDE Semiconductor Inc maintains the 15kW peak pulse power rating while matching all critical voltage parameters. This is the appropriate selection for applications requiring full power capacity.

Q: Can I mix different substitute parts in the same circuit?

A: Yes, all substitute parts meet the same voltage protection specifications and can be used interchangeably in the same circuit design, provided the application power requirements are met. Verify that your circuit design accommodates the specific peak pulse power rating of the selected substitute.