5KP180C-B Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The 5KP180C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose transient voltage protection applications. This component features a 180V reverse standoff voltage rating and 306.6V maximum clamping voltage with 5kW peak pulse power handling capability in a through-hole P600 axial package.

The 5KP180C-B is classified as obsolete. Equivalent and substitute parts are available from the same manufacturer series with active product status, offering improved availability while maintaining electrical and mechanical compatibility for circuit protection applications.

Substiute Parts

5KP180C-B

LittelfuseIn Stock: 11175KP180C-B Datasheet

Current PartRFQ

5KP180CA

Littelfuse Inc.In Stock: 28165KP180CA Datasheet

DirectRFQ

5KP180CA-B

Littelfuse Inc.In Stock: 9795KP180CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5KP180C-B are qualified based on the following critical parameters that determine functional equivalence:

• Voltage - Reverse Standoff (Typ): 180V
• Voltage - Clamping (Max) @ Ipp: Within acceptable range for circuit protection
• Power - Peak Pulse: 5000W (5kW)
• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

The substitute parts 5KP180CA and 5KP180CA-B maintain identical reverse standoff voltage, peak pulse power rating, thermal operating range, and package configuration. Both substitutes are active products from the same 5KP series, ensuring direct functional replacement capability.

Parameter Comparison

Engineering Selection Recommendations

The 5KP180CA and 5KP180CA-B are direct functional equivalents to the obsolete 5KP180C-B. Both substitute parts maintain identical electrical ratings for reverse standoff voltage, peak pulse power dissipation, and thermal operating range. The primary difference between substitutes is packaging format: 5KP180CA is supplied in Cut Tape (CT) format, while 5KP180CA-B is supplied in Bulk format.

Both substitutes are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring regulatory compliance and long-term availability. Selection between the two substitutes should be based on procurement requirements and packaging preferences for your assembly process.

Frequently Asked Questions (FAQ)

Q: Can 5KP180CA or 5KP180CA-B directly replace 5KP180C-B in existing designs?

A: Yes. Both substitute parts maintain the same reverse standoff voltage (180V), peak pulse power rating (5kW), operating temperature range (-55°C to 175°C), and P600 axial through-hole package configuration. Direct circuit board replacement is supported.

Q: What is the difference between 5KP180CA and 5KP180CA-B?

A: The electrical specifications are identical. The difference is packaging format: 5KP180CA is supplied in Cut Tape (CT) format for automated assembly, while 5KP180CA-B is supplied in Bulk format. Both are active products from Littelfuse.

Q: Are there differences in voltage clamping between the main part and substitutes?

A: The 5KP180C-B specifies a maximum clamping voltage of 306.6V, while both 5KP180CA variants specify 292V maximum clamping voltage. Both values are within the acceptable operating envelope for 180V standoff voltage TVS diodes in the 5KP series and maintain the same peak pulse power rating.

Q: What compliance certifications apply to the substitute parts?

A: Both 5KP180CA and 5KP180CA-B are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level). The 5KP180CA additionally carries REACH Unaffected status.

Q: Why is the 5KP180C-B classified as obsolete?

A: The 5KP180C-B is obsolete, but equivalent active alternatives are available from the same manufacturer series. The 5KP180CA and 5KP180CA-B provide the same functional performance with improved long-term availability.