5KP250C-B Equivalent & Substitute Parts

Part Overview

The 5KP250C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage clamping applications. This bidirectional Zener diode operates with a 250V reverse standoff voltage and provides peak pulse power handling of 5kW. The part is currently obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued system support and new designs.

Substiute Parts

5KP250C-B

Littelfuse Inc.In Stock: 7695KP250C-B Datasheet

Current PartRFQ

5KP250CA

Littelfuse Inc.In Stock: 19885KP250CA Datasheet

DirectRFQ

5KP250CA-B

Littelfuse Inc.In Stock: 12285KP250CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP250C-B is determined by the following critical parameters:

• Reverse Standoff Voltage: 250V (must match exactly)
• Peak Pulse Current: 12A (must match exactly)
• Peak Pulse Power: 5000W (must match exactly)
• Package Type: P600, Axial through-hole (must match exactly)
• Operating Temperature Range: -55°C to 175°C (must match exactly)
• Bidirectional Channels: 1 (must match exactly)

The substitute parts 5KP250CA and 5KP250CA-B meet all critical electrical and mechanical parameters. Both maintain the same reverse standoff voltage, peak pulse current, power rating, and through-hole P600 package configuration. The primary differences are packaging format (Cut Tape vs. Bulk) and product status (Active vs. Obsolete), with the substitute parts offering improved availability and active manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

Both 5KP250CA and 5KP250CA-B are direct functional equivalents to the 5KP250C-B. Selection between these substitutes should be based on procurement requirements:

5KP250CA (Cut Tape packaging) is suitable for automated assembly processes and tape-and-reel handling systems.

5KP250CA-B (Bulk packaging) is appropriate for manual assembly, kit builds, or applications where individual component handling is preferred.

Both substitute parts carry Active product status, ensuring continued manufacturer support, availability, and compliance with current regulatory standards (ROHS3 Compliant). The electrical performance differences in breakdown voltage (277V vs. 262.35V) and clamping voltage (425V vs. 446.25V) remain within acceptable design margins for general-purpose transient voltage suppression applications while maintaining the critical 250V reverse standoff specification.

Frequently Asked Questions (FAQ)

Q: Can 5KP250CA or 5KP250CA-B be used as direct replacements for 5KP250C-B?

A: Yes. Both parts maintain identical reverse standoff voltage (250V), peak pulse current (12A), peak pulse power (5000W), and P600 axial through-hole package configuration. The substitute parts are electrically and mechanically compatible.

Q: What is the difference between 5KP250CA and 5KP250CA-B?

A: The primary difference is packaging format. 5KP250CA is supplied in Cut Tape (CT) format for automated assembly, while 5KP250CA-B is supplied in Bulk format for manual handling. Electrical specifications are identical.

Q: Why are the breakdown and clamping voltages different between the main part and substitutes?

A: The substitute parts (5KP250CA and 5KP250CA-B) have a higher minimum breakdown voltage (277V vs. 262.35V) and lower maximum clamping voltage (425V vs. 446.25V). These variations remain within the 5KP series design envelope and do not affect the critical 250V reverse standoff voltage specification that determines substitution compatibility.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 5KP250CA and 5KP250CA-B are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original 5KP250C-B.

Q: What is the product status of the substitute parts?

A: Both 5KP250CA and 5KP250CA-B carry Active product status, ensuring ongoing manufacturer support and availability, unlike the obsolete 5KP250C-B.