Equivalent & Substitute Parts for 3KP200C-B TVS Diode

Part Overview

The 3KP200C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage transient protection applications. This bidirectional zener diode features a 200V reverse standoff voltage and 345.66V maximum clamping voltage with 9.1A peak pulse current capability in a through-hole P600 axial package.

The 3KP200C-B is classified as obsolete. Equivalent and substitute parts are available from active product lines that maintain the same electrical and mechanical specifications, ensuring continued availability for new designs and replacement applications.

Substiute Parts

3KP200C-B

Littelfuse Inc.In Stock: 10613KP200C-B Datasheet

Current PartRFQ

5KP200CA-B

Littelfuse Inc.In Stock: 10955KP200CA-B Datasheet

DirectRFQ

15KP200CA-TP

Micro Commercial CoIn Stock: 79115KP200CA-TP Datasheet

MFR RecommendedRFQ

15KPA200CAE3/TR13

Microchip TechnologyIn Stock: 78715KPA200CAE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3KP200C-B is determined by the following critical parameters:

• Voltage Rating: Reverse standoff voltage of 200V and breakdown voltage minimum of 210.6V
• Package Type: Through-hole axial configuration (P600 or R-6 equivalent)
• Bidirectional Operation: Single-channel zener diode
• Operating Temperature: -55°C to 175°C junction temperature range
• Compliance: ROHS3 compliance and EAR99 export classification

Substitute parts must maintain the same 200V reverse standoff voltage specification and support through-hole mounting. Variations in clamping voltage, peak pulse current, and power dissipation are acceptable provided the parts remain within the same voltage class and maintain electrical compatibility for general-purpose transient protection applications.

Parameter Comparison

Engineering Selection Recommendations

5KP200CA-B (Littelfuse Inc.) is the primary direct substitute. This part maintains P600 axial package compatibility with the 3KP200C-B, shares the same manufacturer, and is in active production status. The 5KP200CA-B provides higher peak pulse current (15.5A versus 9.1A) and increased power dissipation (5000W versus 3000W), offering enhanced transient protection capability within the same voltage class.

15KPA200CAE3/TR13 (Microchip Technology) is a cross-manufacturer substitute available in tape and reel packaging. This part maintains P600 axial package compatibility and provides the highest peak pulse current (47.3A) and power dissipation (15000W) among available substitutes. It is suitable for applications requiring enhanced transient suppression performance.

15KP200CA-TP (Micro Commercial Co) is an alternative substitute with R-6 axial package configuration. While the R-6 package differs mechanically from the P600, it maintains through-hole mounting compatibility. This part offers 15000W peak pulse power dissipation and is available in cut tape packaging.

All substitute parts maintain ROHS3 compliance, EAR99 export classification, and the required -55°C to 175°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can 5KP200CA-B directly replace 3KP200C-B in existing designs?

A: Yes. The 5KP200CA-B maintains identical voltage ratings (200V reverse standoff), package type (P600 axial), and operating temperature range. The increased peak pulse current and power dissipation provide equivalent or superior performance for general-purpose transient protection applications.

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

A: Both P600 and R-6 are through-hole axial packages suitable for PCB mounting. The R-6 package used by 15KP200CA-TP has different physical dimensions compared to P600. Verify PCB footprint compatibility before substitution.

Q: Why do substitute parts have different clamping voltages?

A: Clamping voltage variation within the 200V voltage class is a normal characteristic of TVS diode manufacturing. All listed substitutes maintain the 200V reverse standoff specification and are electrically compatible for transient suppression applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (5KP200CA-B, 15KP200CA-TP, and 15KPA200CAE3/TR13) are ROHS3 compliant and suitable for applications requiring environmental compliance.

Q: Which substitute offers the best performance upgrade?

A: The 15KPA200CAE3/TR13 provides the highest peak pulse current (47.3A) and power dissipation (15000W), offering maximum transient protection capability. Selection depends on specific application requirements and thermal management considerations.

Q: Can I use 15KP200CA-TP as a direct replacement without PCB modification?

A: The R-6 package has different physical dimensions than the P600 package. Verify that the PCB footprint accommodates R-6 axial lead spacing before substitution. If footprint compatibility cannot be confirmed, use 5KP200CA-B or 15KPA200CAE3/TR13 instead.