5KP150C-B Equivalent & Substitute Parts

Part Overview

The 5KP150C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This bidirectional Zener diode operates with a 150V reverse standoff voltage and provides peak pulse power handling of 5000W in a through-hole P600 axial package. The part is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

5KP150C-B

Littelfuse Inc.In Stock: 9675KP150C-B Datasheet

Current PartRFQ

5KP150CA

Littelfuse Inc.In Stock: 16935KP150CA Datasheet

DirectRFQ

5KP150CA-B

Littelfuse Inc.In Stock: 10115KP150CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5KP150C-B is determined by strict equivalence across the following critical parameters:

• Reverse standoff voltage: 150V (nominal)
• Peak pulse power rating: 5000W (5kW)
• Bidirectional channel configuration: 1 channel
• Package type: P600, Axial through-hole
• Zener diode type classification
• Operating temperature range: -55°C to 175°C
• RoHS3 compliance and MSL rating

The substitute parts 5KP150CA and 5KP150CA-B maintain identical electrical specifications for reverse standoff voltage, peak pulse power, and thermal operating range. Both are active products from the same manufacturer and series, differing only in packaging format (Cut Tape versus Bulk) rather than electrical performance or functional capability.

Parameter Comparison

Engineering Selection Recommendations

Both 5KP150CA and 5KP150CA-B are direct functional equivalents to the obsolete 5KP150C-B. Selection between the two substitute parts should be based on procurement and assembly requirements:

• 5KP150CA (Cut Tape): Suitable for automated pick-and-place assembly operations and applications requiring controlled component dispensing.
• 5KP150CA-B (Bulk): Appropriate for manual assembly, rework operations, or applications where packaging format does not constrain the assembly process.

Both substitute parts maintain ROHS3 compliance and MSL rating identical to the original part. The active product status of both alternatives ensures long-term availability and supply chain continuity compared to the obsolete 5KP150C-B.

Frequently Asked Questions (FAQ)

Q: Can 5KP150CA and 5KP150CA-B be used interchangeably with 5KP150C-B?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical reverse standoff voltage (150V), peak pulse power rating (5000W), package type (P600 axial), and operating temperature range. The only difference is packaging format (Cut Tape versus Bulk).

Q: What is the difference between the substitute parts?

A: The 5KP150CA is supplied in Cut Tape packaging, while the 5KP150CA-B is supplied in Bulk packaging. Electrical and mechanical specifications are identical. Selection depends on assembly process requirements and procurement preferences.

Q: Why is the 5KP150C-B listed as obsolete?

A: The 5KP150C-B has been discontinued by the manufacturer. The active equivalents 5KP150CA and 5KP150CA-B provide identical functionality and are recommended for new designs and ongoing procurement.

Q: Are there any compliance differences between the main part and substitutes?

A: No. All three parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Regulatory and environmental compliance is equivalent across all variants.

Q: What parameters must remain constant for substitution?

A: Reverse standoff voltage (150V), peak pulse power (5000W), package type (P600 axial), bidirectional channel count (1), and operating temperature range (-55°C to 175°C) must all remain constant for functional equivalence.