5KP7.0-B Equivalent & Substitute Parts

Part Overview

The 5KP7.0-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., rated for 7V reverse standoff voltage with 12.6V maximum clamping voltage and 5000W peak pulse power. Designed for general-purpose transient protection in through-hole P600 axial package configuration, this component is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

5KP7.0-B

Littelfuse Inc.In Stock: 11035KP7.0-B Datasheet

Current PartRFQ

5KP7.0A

Littelfuse Inc.In Stock: 32705KP7.0A Datasheet

DirectRFQ

5KP7.0A-B

Littelfuse Inc.In Stock: 7565KP7.0A-B Datasheet

DirectRFQ

1.5KE8.2A-TP

Micro Commercial CoIn Stock: 17661.5KE8.2A-TP Datasheet

MFR RecommendedRFQ

5KP7.0A-TP

Micro Commercial CoIn Stock: 9175KP7.0A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP7.0-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 7V ± tolerance
• Voltage - Clamping (Max) @ Ipp: 12V to 12.6V range
• Power - Peak Pulse: 5000W minimum
• Unidirectional Channels: 1
• Operating Temperature: -55°C ~ 175°C
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category 1: Direct Littelfuse Equivalents (Same Manufacturer, Active Status) Parts 5KP7.0A and 5KP7.0A-B maintain identical electrical specifications with active product status, ensuring long-term availability and supply chain continuity.

Category 2: Cross-Manufacturer Alternatives (Micro Commercial Co) Parts 1.5KE8.2A-TP and 5KP7.0A-TP provide functional equivalence with comparable voltage and thermal ratings, though with package variations and power rating differences that require evaluation.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Littelfuse 5KP7.0A and 5KP7.0A-B)

These parts are the preferred substitutes for the obsolete 5KP7.0-B. Both maintain identical reverse standoff voltage (7V), equivalent clamping voltage (12V vs. 12.6V), and matching 5000W peak pulse power rating. Both are active products with ROHS3 compliance and unlimited moisture sensitivity level. The 5KP7.0A is available in Cut Tape packaging with 3200 units in stock, while 5KP7.0A-B is available in Bulk packaging with 663 units in stock. Both use the same P600 axial package, ensuring mechanical and electrical compatibility without PCB redesign.

Secondary Substitutes (Micro Commercial Co 5KP7.0A-TP)

The 5KP7.0A-TP from Micro Commercial Co provides electrical equivalence with 7V reverse standoff voltage, 12V clamping voltage, and 5000W peak pulse power. However, it uses an R-6 axial package instead of P600, requiring PCB footprint verification. This part is active with 871 units in stock and is suitable when package compatibility can be accommodated.

Limited Substitute (Micro Commercial Co 1.5KE8.2A-TP)

The 1.5KE8.2A-TP offers comparable voltage ratings (7.02V standoff, 12.1V clamping) and thermal range but is rated for only 1500W peak pulse power, significantly below the 5000W requirement of the main part. This part is suitable only for applications with reduced transient energy requirements and should not be used as a direct replacement in designs requiring full 5000W protection capability. It uses DO-201AE axial package with 1751 units in stock.

Frequently Asked Questions (FAQ)

Q: Can 5KP7.0A directly replace 5KP7.0-B without PCB modification?

A: Yes. The 5KP7.0A and 5KP7.0A-B both use the P600 axial package identical to the 5KP7.0-B, requiring no PCB footprint changes. Electrical specifications are compatible within acceptable tolerances for general-purpose transient protection applications.

Q: What is the difference between 5KP7.0A and 5KP7.0A-B?

A: Both parts are electrically identical with matching voltage and power ratings. The primary difference is packaging format: 5KP7.0A is supplied in Cut Tape (CT) with higher inventory availability (3200 units), while 5KP7.0A-B is supplied in Bulk with lower inventory (663 units). Selection depends on procurement and assembly requirements.

Q: Why is 1.5KE8.2A-TP not recommended as a primary substitute?

A: The 1.5KE8.2A-TP is rated for 1500W peak pulse power, which is 70% below the 5000W specification of the 5KP7.0-B. While voltage ratings are comparable, the reduced power handling capability makes it unsuitable for applications requiring full transient energy dissipation. Additionally, it uses DO-201AE package instead of P600, requiring PCB redesign.

Q: Are all substitute parts ROHS3 compliant?

A: The Littelfuse parts (5KP7.0A and 5KP7.0A-B) and the Micro Commercial Co 1.5KE8.2A-TP are confirmed ROHS3 compliant. The 5KP7.0A-TP RoHS status is not specified in available documentation and should be confirmed with the supplier before use in applications with RoHS compliance requirements.

Q: What package considerations apply to cross-manufacturer substitutes?

A: The 5KP7.0A-TP uses R-6 axial package and 1.5KE8.2A-TP uses DO-201AE axial package, both differing from the original P600 package. While all are through-hole axial configurations, physical dimensions and lead spacing may differ. PCB footprint compatibility must be verified before implementation.