5KP45CE3/TR13 Equivalent & Substitute Parts

Part Overview

The 5KP45CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener diode operates with a 45V reverse standoff voltage and delivers 62.3A peak pulse current with 5000W peak pulse power handling capability. The device is packaged in P600 axial through-hole configuration and is ROHS3 compliant with unlimited moisture sensitivity rating.

The 5KP45CE3/TR13 maintains Active product status. Equivalent and substitute parts are identified based on matching or compatible electrical parameters, mechanical packaging, and operational specifications that permit direct functional replacement in circuit applications.

Substiute Parts

5KP45CE3/TR13

Microchip TechnologyIn Stock: 10715KP45CE3/TR13 Datasheet

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15KPA45CA

MDE Semiconductor IncIn Stock: 188715KPA45CA Datasheet

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30KPA45CA

MDE Semiconductor IncIn Stock: 150230KPA45CA Datasheet

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5KP45CA

Littelfuse Inc.In Stock: 32335KP45CA Datasheet

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P6KE47CA

Diotec SemiconductorIn Stock: 25492P6KE47CA Datasheet

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P6KE56CA

Taiwan Semiconductor CorporationIn Stock: 58134P6KE56CA Datasheet

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SA48CA

Taiwan Semiconductor CorporationIn Stock: 300442SA48CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP45CE3/TR13 are classified into two functional groups based on electrical performance and packaging compatibility:

Group 1: P600 Package Equivalents (Direct Mechanical Substitutes)

Substitute parts 15KPA45CA, 30KPA45CA, and 5KP45CA maintain identical P600 axial through-hole packaging and matching 45V reverse standoff voltage specification. These devices are electrically compatible for applications requiring the same mechanical footprint and voltage rating. Differences in peak pulse current (207.4A, 391.5A, and 70.2A respectively) and clamping voltage reflect higher or comparable power handling capabilities within the same package class.

Group 2: DO-15 Package Alternatives (Reduced Power Rating)

Substitute parts P6KE47CA, P6KE56CA, and SA48CA utilize DO-15 (DO-204AC) axial through-hole packaging with reduced peak pulse power ratings (600W, 600W, and 500W respectively). These devices provide voltage protection in the 40V to 48V standoff range and are suitable for lower-power applications where mechanical package substitution is acceptable.

Key Parameters Determining Substitution:

• Reverse standoff voltage within 40V to 48V range
• Bidirectional Zener type classification
• Through-hole axial mounting configuration
• ROHS3 compliance and unlimited MSL rating
• Operating temperature range -55°C to 175°C (TJ)

Parameter Comparison

Engineering Selection Recommendations

For Direct Mechanical and Electrical Equivalence (P600 Package):

The 5KP45CA (Littelfuse Inc.) provides the closest functional equivalent to the 5KP45CE3/TR13. Both devices maintain identical 45V reverse standoff voltage, 5000W peak pulse power rating, P600 axial packaging, and -55°C to 175°C operating temperature range. The 5KP45CA exhibits marginally lower clamping voltage (72.7V versus 80.3V) and comparable peak pulse current (70.2A versus 62.3A). ROHS3 compliance and unlimited MSL rating are confirmed for both devices.

For Enhanced Power Handling (P600 Package):

The 15KPA45CA and 30KPA45CA (MDE Semiconductor Inc) are suitable substitutes where increased transient energy absorption is required. Both maintain 45V reverse standoff voltage and P600 axial packaging with -55°C to 175°C operating temperature range. The 15KPA45CA provides 15000W peak pulse power (207.4A peak current), while the 30KPA45CA delivers 30000W peak pulse power (391.5A peak current). These devices are ROHS3 compliant and support unlimited MSL rating.

For Reduced Power Applications (DO-15 Package):

The P6KE47CA, P6KE56CA, and SA48CA are applicable only where circuit design permits DO-15 package substitution and lower power dissipation is acceptable. The SA48CA offers the closest voltage alignment (48V standoff) with -55°C to 175°C operating temperature range and ROHS3 compliance. Peak pulse power is limited to 500W to 600W, suitable for low-energy transient suppression only.

All substitute parts maintain ROHS3 compliance and bidirectional Zener classification consistent with the original device.

Frequently Asked Questions (FAQ)

Q: Can the 5KP45CA directly replace the 5KP45CE3/TR13 in existing circuit boards?

A: Yes. The 5KP45CA is mechanically and electrically compatible for direct substitution. Both devices utilize P600 axial through-hole packaging, maintain 45V reverse standoff voltage, and deliver 5000W peak pulse power. Printed circuit board footprints and lead spacing are identical. The 5KP45CA exhibits slightly lower clamping voltage (72.7V versus 80.3V), which is within acceptable tolerance for general-purpose overvoltage protection applications.

Q: What is the functional difference between P600 and DO-15 package substitutes?

A: P600 and DO-15 are distinct axial through-hole package formats with different physical dimensions and power dissipation capabilities. P600 packages accommodate higher peak pulse currents and power ratings (5000W to 30000W range). DO-15 packages are physically smaller and limited to lower power ratings (500W to 600W). Package selection depends on circuit board layout constraints and transient energy requirements. Direct package substitution is not recommended without circuit redesign verification.

Q: Are the 15KPA45CA and 30KPA45CA suitable for applications requiring only 5000W power handling?

A: Yes. The 15KPA45CA and 30KPA45CA are rated for 15000W and 30000W peak pulse power respectively, exceeding the 5000W requirement of the original 5KP45CE3/TR13. Higher power ratings provide additional design margin and transient suppression capability. These devices maintain identical 45V reverse standoff voltage and P600 packaging, ensuring mechanical and electrical compatibility. Operating temperature range (-55°C to 175°C) and ROHS3 compliance are preserved.

Q: What are the compliance and regulatory considerations for substitute selection?

A: All listed substitute parts maintain ROHS3 compliance and bidirectional Zener classification. The 5KP45CE3/TR13, 5KP45CA, 15KPA45CA, 30KPA45CA, and SA48CA are REACH Unaffected or REACH information available upon request. All devices carry EAR99 ECCN classification and 8541.10.0080 HTSUS code. Moisture sensitivity level is unlimited (MSL 1) for all parts except P6KE47CA and P6KE56CA, where MSL information is provided or not specified. Regulatory compliance is maintained across all substitute options.

Q: Can DO-15 package devices (P6KE47CA, P6KE56CA, SA48CA) be used in applications designed for P600 packages?

A: DO-15 package substitution requires circuit board redesign and is not recommended as a direct replacement. DO-15 devices feature different physical dimensions, lead spacing, and reduced power handling (500W to 600W versus 5000W). Circuit board footprints are incompatible without layout modification. DO-15 substitutes are applicable only where new circuit designs accommodate the smaller package format and lower transient energy absorption is acceptable.

Q: How do clamping voltage differences affect circuit protection performance?

A: Clamping voltage determines the maximum voltage presented to protected circuitry during transient events. The 5KP45CE3/TR13 clamps at 80.3V maximum, while the 5KP45CA clamps at 72.7V. Lower clamping voltage (5KP45CA) provides tighter voltage regulation and enhanced component protection. Higher clamping voltage (15KPA45CA at 72.8V, 30KPA45CA at 77.4V) remains within acceptable protection thresholds for general-purpose applications. Selection depends on specific circuit voltage tolerance requirements.