Equivalent & Substitute Parts for 5KP8.0CA-B

Part Overview

The 5KP8.0CA-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This through-hole component operates with an 8V reverse standoff voltage and provides 5000W peak pulse power dissipation. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to packaging availability, inventory constraints, or specific application mounting requirements while maintaining equivalent electrical performance.

Substiute Parts

5KP8.0CA-B

LittelfuseIn Stock: 11725KP8.0CA-B Datasheet

Current PartRFQ

5KP8.0CA

Littelfuse Inc.In Stock: 41205KP8.0CA Datasheet

MFR RecommendedRFQ

SA8.0CA

Taiwan Semiconductor CorporationIn Stock: 13804SA8.0CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP8.0CA-B is determined by the following critical electrical parameters: voltage rating (reverse standoff, breakdown, and clamping), peak pulse current capability, and peak pulse power dissipation. All substitute parts must maintain identical voltage specifications (8V standoff, 8.89V minimum breakdown, 13.6V maximum clamping) and support the same operating temperature range (-55°C to 175°C).

The 5KP8.0CA (Littelfuse, Tape & Reel packaging) is a direct electrical equivalent with identical electrical specifications and differs only in packaging format. The SA8.0CA (Taiwan Semiconductor Corporation) maintains voltage equivalence but operates at reduced peak pulse current (38A versus 375A) and lower peak pulse power (500W versus 5000W), making it suitable only for applications with lower transient energy requirements.

Parameter Comparison

Engineering Selection Recommendations

The 5KP8.0CA (Littelfuse) is the primary substitute for the 5KP8.0CA-B, offering complete electrical equivalence with identical voltage ratings, peak pulse current (375A), and power dissipation (5000W). Both parts maintain ROHS3 compliance and active production status. Selection between bulk and tape & reel packaging depends on assembly process requirements and inventory management practices.

The SA8.0CA (Taiwan Semiconductor Corporation) is electrically compatible for voltage protection but operates at significantly reduced peak pulse current and power ratings. This part is suitable only for applications where transient energy levels do not exceed 500W and peak pulse currents remain below 38A. The different package format (DO-204AC versus P600) may require PCB layout modifications. All three parts maintain identical operating temperature ranges and RoHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can the 5KP8.0CA replace the 5KP8.0CA-B in all applications? A: Yes. The 5KP8.0CA is electrically identical to the 5KP8.0CA-B. The only difference is packaging format (tape & reel versus bulk). Both parts support 375A peak pulse current and 5000W power dissipation with identical voltage specifications.

Q: What are the limitations of the SA8.0CA as a substitute? A: The SA8.0CA maintains the same voltage protection characteristics (8V standoff, 13.6V clamping) but is rated for only 38A peak pulse current and 500W power dissipation compared to 375A and 5000W for the 5KP8.0CA-B. Use the SA8.0CA only in applications with lower transient energy requirements. The package format also differs (DO-204AC versus P600), requiring PCB layout verification.

Q: Are there any compliance or certification differences between these parts? A: No. All three parts (5KP8.0CA-B, 5KP8.0CA, and SA8.0CA) are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1) and active production status.

Q: Does package format affect electrical performance? A: No. Package format (bulk, tape & reel, or different case styles) does not affect electrical performance. Selection depends on assembly process compatibility and inventory handling requirements.

Q: Can the SA8.0CA be used in high-energy transient protection circuits? A: No. The SA8.0CA's 500W power rating and 38A peak pulse current limit it to low-energy applications. For circuits requiring 5000W dissipation and 375A peak pulse current, use the 5KP8.0CA-B or 5KP8.0CA.