5KP150CA-B Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The 5KP150CA-B is an active Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole axial component operates across a wide temperature range of -55°C to 175°C and meets ROHS3 compliance requirements. The part is currently in active production status with 1001 units available in bulk packaging. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the TVS diode category.

Substiute Parts

5KP150CA-B

Littelfuse Inc.In Stock: 10115KP150CA-B Datasheet

Current PartRFQ

5KP150CA

Littelfuse Inc.In Stock: 16935KP150CA Datasheet

MFR RecommendedRFQ

5KP150CA-TP

Micro Commercial CoIn Stock: 12925KP150CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP150CA-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Voltage - Clamping (Max) @ Ipp: 243V
• Current - Peak Pulse (10/1000µs): 21A
• Power - Peak Pulse: 5000W (5kW)
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Substitute parts must match all electrical parameters (voltage ratings, current capacity, and power dissipation) and maintain through-hole axial mounting compatibility. Packaging format (bulk, cut tape) does not affect electrical substitutability. Variations in package case designation (P600 vs. R-6) are acceptable provided mechanical fit is verified for the specific application.

Parameter Comparison

Engineering Selection Recommendations

Both 5KP150CA and 5KP150CA-TP are electrically equivalent to the 5KP150CA-B based on matching voltage ratings, current capacity, and power dissipation specifications. All three parts maintain active product status and ROHS3 compliance.

The 5KP150CA (Littelfuse Inc., P600 package) provides direct electrical and mechanical equivalence with identical package designation. This part is available in cut tape packaging format.

The 5KP150CA-TP (Micro Commercial Co, R-6 package) matches all critical electrical parameters but uses an alternative axial package case designation (R-6 instead of P600). Physical dimensions and lead spacing may differ; mechanical fit verification is required before substitution in space-constrained applications.

Selection between these substitutes should be based on packaging availability, lead-time requirements, and mechanical fit constraints specific to the application circuit board layout.

Frequently Asked Questions (FAQ)

Q: Can 5KP150CA replace 5KP150CA-B in my circuit?

A: Yes. Both parts share identical electrical specifications: 150V reverse standoff voltage, 167V minimum breakdown voltage, 243V maximum clamping voltage, 21A peak pulse current, and 5000W peak pulse power rating. Both are ROHS3 compliant and rated for -55°C to 175°C operation. The difference is packaging format (bulk vs. cut tape), which does not affect electrical performance.

Q: Is 5KP150CA-TP a suitable substitute?

A: The 5KP150CA-TP matches all critical electrical parameters and operating temperature range. However, it uses an R-6 axial package case instead of the P600 designation. Physical dimensions and lead spacing may differ. Verify mechanical compatibility with your PCB layout and component placement before substitution.

Q: What parameters must match for TVS diode substitution?

A: For the 5KP150CA-B category, the following parameters must match: reverse standoff voltage (150V), breakdown voltage (167V minimum), clamping voltage (243V maximum), peak pulse current (21A), peak pulse power (5000W), mounting type (through hole), and operating temperature range (-55°C to 175°C). Package case designation may vary if mechanical fit is verified.

Q: Does packaging format affect substitutability?

A: Packaging format (bulk, cut tape) does not affect electrical substitutability. It impacts only procurement, handling, and assembly processes. All three parts are electrically equivalent regardless of packaging format.

Q: Are all substitutes ROHS3 compliant?

A: Yes. The 5KP150CA-B, 5KP150CA, and 5KP150CA-TP are all ROHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity level).