15KP75CA-TP Equivalent & Substitute Parts

Part Overview

The 15KP75CA-TP is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient voltage protection applications. This axial through-hole component operates with a 75V reverse standoff voltage and 122V maximum clamping voltage, delivering 15kW peak pulse power. The part is ROHS3 compliant and maintains active product status, making it suitable for immediate deployment in protection circuits requiring reliable transient suppression across industrial and commercial applications.

Equivalent and substitute parts are identified based on matching critical electrical parameters: reverse standoff voltage (75V), clamping voltage range (119.4V–122V), bidirectional channel configuration, through-hole mounting, and compatible operating temperature ranges. Substitutes maintain functional equivalence while offering variations in peak pulse current capacity and power dissipation ratings.

Substiute Parts

15KP75CA-TP

Micro Commercial CoIn Stock: 78615KP75CA-TP Datasheet

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15KPA75CA

MDE Semiconductor IncIn Stock: 221815KPA75CA Datasheet

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30KPA75CA

MDE Semiconductor IncIn Stock: 405230KPA75CA Datasheet

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5KP75CA

Diotec SemiconductorIn Stock: 39405KP75CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 15KP75CA-TP are qualified based on the following critical parameters:

• Reverse Standoff Voltage: All substitutes maintain 75V ±0.5V nominal specification
• Clamping Voltage Range: Acceptable range is 119.4V to 122V maximum @ Ipp
• Bidirectional Configuration: Single bidirectional channel required
• Mounting Type: Through-hole axial package mandatory
• Operating Temperature: Minimum -50°C to maximum 175°C required
• Compliance: ROHS3 compliance required; REACH status acceptable as "info available upon request" or "unaffected"

Three substitute parts meet these criteria with variations in peak pulse current and power dissipation:

• 15KPA75CA: Matched 15kW power rating with 123.8A peak pulse current
• 30KPA75CA: Enhanced 30kW power rating with 253.8A peak pulse current for higher transient energy applications
• 5KP75CA: Reduced 5kW power rating with 41A peak pulse current for lower-energy protection circuits

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (15KPA75CA): Select this substitute when the original 15KP75CA-TP is unavailable. The 15KPA75CA maintains identical electrical performance (15kW peak pulse power, 122V clamping voltage) and operating temperature range (-55 to 175°C). Both parts are ROHS3 compliant and active products. Package differences (R-6 vs. P600 axial) require mechanical verification for PCB footprint compatibility.

Higher Power Rating (30KPA75CA): Select this substitute for applications requiring enhanced transient energy absorption beyond 15kW. The 30KPA75CA doubles the peak pulse power to 30kW while maintaining the 75V standoff voltage and 119.4V clamping voltage within acceptable limits. This part is suitable for circuits experiencing higher-magnitude transient events. ROHS3 compliance and active product status are confirmed.

Lower Power Rating (5KP75CA): Select this substitute for cost-optimized designs where transient energy levels do not exceed 5kW. The 5KP75CA maintains the 75V standoff voltage and 121V clamping voltage within specification. Operating temperature range extends to -50°C minimum (versus -55°C for the main part), which is acceptable for most industrial applications. ROHS3 compliance and active product status are confirmed.

All substitutes are ROHS3 compliant, active products with established supply availability. Selection depends on application transient energy requirements and mechanical package compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the 15KPA75CA directly replace the 15KP75CA-TP without circuit modification?

A: Electrical parameters are equivalent (75V standoff, 122V clamping, 15kW power). However, package differences exist: 15KP75CA-TP uses R-6 axial case while 15KPA75CA uses P600 axial case. PCB footprint compatibility must be verified before substitution. Both are through-hole components with similar lead spacing, but mechanical fit requires confirmation.

Q: When should the 30KPA75CA be selected instead of the 15KPA75CA?

A: Select the 30KPA75CA when circuit analysis confirms transient pulse energy exceeds 15kW. The 30kW rating provides margin for high-magnitude voltage spikes. Clamping voltage (119.4V) remains within acceptable range. This substitution is appropriate for industrial power distribution, motor control, and high-energy switching applications.

Q: Is the 5KP75CA suitable for all applications using the 15KP75CA-TP?

A: No. The 5KP75CA is rated for 5kW peak pulse power, one-third the capacity of the 15KP75CA-TP. Use only when application transient energy analysis confirms peak pulse power does not exceed 5kW. Operating temperature minimum is -50°C (versus -55°C), which is acceptable for most commercial and industrial environments but may not suit extreme cold applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 15KPA75CA, 30KPA75CA, and 5KP75CA are all ROHS3 compliant. The main part 15KP75CA-TP is also ROHS3 compliant. All parts meet current environmental and hazardous substance restrictions.

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

A: Both are through-hole axial packages for TVS diodes. R-6 (main part package) and P600 (substitute parts package) differ in physical dimensions and lead configuration. Verify PCB footprint compatibility before substitution. Lead spacing and hole diameter specifications must match design requirements.

Q: Can substitutes be mixed in the same circuit design?

A: No. Use a single part number throughout a design to ensure consistent transient protection performance. Mixing different power ratings or manufacturers in parallel protection stages may result in unequal current distribution and reduced protection effectiveness.