Equivalent & Substitute Parts Reference: 3KP5.0CA-B

Part Overview

The Littelfuse Inc. 3KP5.0CA-B is a bidirectional Zener type Transient Voltage Suppressor (TVS) diode employed for overvoltage protection in general-purpose applications. This part is rated for a peak pulse power of 3000W (3kW), a 5V reverse standoff voltage, and a 9.2V clamping voltage, with through-hole mounting in a P600 axial package. The 3KP5.0CA-B is classified as obsolete, making the identification of suitable equivalent and substitute TVS diodes with matching parametric and mechanical characteristics essential for sustaining existing designs and ensuring form, fit, and function.

Substiute Parts

3KP5.0CA-B

Littelfuse Inc.In Stock: 10673KP5.0CA-B Datasheet

Current PartRFQ

5KP5.0CA-B

Littelfuse Inc.In Stock: 11315KP5.0CA-B Datasheet

DirectRFQ

3KP5.0CA-TP

Micro Commercial CoIn Stock: 10823KP5.0CA-TP Datasheet

DirectRFQ

5KP5.0CA-TP

Micro Commercial CoIn Stock: 77595KP5.0CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute TVS diodes are grouped based on exact matches of the following key electrical and mechanical parameters: bidirectional configuration, reverse standoff voltage (5V), minimum breakdown voltage (6.4V), maximum clamping voltage at Ipp (9.2V), power rating (≥ 3000W), mounting type (through-hole), and similar package type (P600 or R-6 axial). Only devices with the same essential characteristics and compliant RoHS status are considered equivalent or valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection among 3KP5.0CA-B substitutes shall be based on part status, RoHS compliance, and moisture sensitivity level. Substitute parts with "Active" product status, ROHS3 Compliant marking, and MSL 1 (Unlimited) are suitable for designs requiring ongoing support and regulatory conformity. Package form factor (P600, R-6) should match the user’s assembly and board layout requirements as specified in the input data.

Frequently Asked Questions (FAQ)

Q1: What are the key selection criteria for substituting the 3KP5.0CA-B TVS diode?
A1: Key selection criteria include bidirectionality, same voltage ratings (reverse standoff 5V, breakdown ≥6.4V, clamping ≤9.2V), equivalent or higher peak pulse power, matching through-hole mounting, compatible package (P600 or R-6), and RoHS compliance.

Q2: Are both the P600 and R-6 package versions interchangeable for the 3KP5.0CA-B?
A2: Both P600 and R-6 are axial, through-hole packages. If the PCB footprint and mechanical fit accommodate both, they can be considered functionally interchangeable when all other key parameters match.

Q3: Do substitute parts need to meet or exceed the peak power rating of the original 3KP5.0CA-B?
A3: Substitute TVS diodes must have a peak power rating that is equal to or greater than 3000W (3kW), in accordance with the provided parameters.

Q4: How important is RoHS and MSL compliance in selecting substitutes?
A4: It is essential to match or exceed the compliance standards (ROHS3, MSL 1 Unlimited) to ensure regulatory compatibility and reliability in assembly and storage.

Q5: Can TVS diodes with a higher peak pulse current be used as direct substitutes?
A5: Yes, a device with a higher peak pulse current is an acceptable substitute provided all other specified electrical and mechanical parameters are identical.