5KP54CA Equivalent & Substitute Parts

Part Overview

The 5KP54CA is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates across a temperature range of -55°C to 175°C and is ROHS3 compliant. The part is currently active in production with 1605 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this TVS diode category.

Substiute Parts

5KP54CA

Littelfuse Inc.In Stock: 16845KP54CA Datasheet

Current PartRFQ

15KP54CA-TP

Micro Commercial CoIn Stock: 142915KP54CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes in this category is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must match at 54V
• Voltage - Breakdown (Min): Must match at 60V
• Voltage - Clamping (Max) @ Ipp: Tolerance range 87.1V to 87.5V acceptable
• Bidirectional Channels: Must be 1
• Mounting Type: Must be Through Hole
• Package / Case: Axial configuration required
• Operating Temperature Range: Must support -55°C to 175°C
• RoHS Status: Must maintain ROHS3 compliance

The 15KP54CA-TP from Micro Commercial Co meets these substitution criteria. While peak pulse power differs (15000W vs 5000W), this represents an upgrade in capability rather than a limitation. The clamping voltage variance of 0.4V falls within acceptable engineering tolerance for TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP54CA and 15KP54CA-TP are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Circuit board layout constraints: The P600 and R-6 axial packages have different physical dimensions; verify footprint compatibility before substitution
• Power dissipation requirements: The 15KP54CA-TP offers higher peak pulse power (15kW vs 5kW), making it suitable for applications requiring greater transient energy absorption
• Inventory availability: Current stock levels are 1605 units for 5KP54CA and 1392 units for 15KP54CA-TP
• Supply chain continuity: Both manufacturers maintain active product status

Frequently Asked Questions (FAQ)

Q: Can the 15KP54CA-TP directly replace the 5KP54CA in all applications?

A: Electrical substitution is valid when voltage parameters (reverse standoff, breakdown, and clamping) are within tolerance. Physical package differences (P600 vs R-6) require verification of board layout compatibility. The higher power rating of the 15KP54CA-TP does not create incompatibility.

Q: What is the significance of the clamping voltage difference (87.1V vs 87.5V)?

A: The 0.4V variance represents a 0.46% difference and falls within acceptable engineering tolerance for TVS diode applications. Both values maintain circuit protection within the specified voltage window.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, classified as EAR99, and share the same HTSUS code (8541.10.0080).

Q: What does the peak pulse power difference mean for circuit design?

A: The 15KP54CA-TP (15kW) can absorb greater transient energy than the 5KP54CA (5kW). This represents a capability upgrade and does not restrict substitution in applications designed for the lower-power part.

Q: How do the axial package types (P600 vs R-6) affect board design?

A: Both are through-hole axial packages but have different physical dimensions. Verify that the substitute package fits the existing PCB footprint and lead spacing before implementation.