5KP11A-B Equivalent & Substitute Parts

Part Overview

The 5KP11A-B is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component features an 11V reverse standoff voltage with an 18.2V maximum clamping voltage and 280.2A peak pulse current capability. The part is currently active in production status. Substitute parts are identified when packaging or inventory requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

5KP11A-B

Littelfuse Inc.In Stock: 10115KP11A-B Datasheet

Current PartRFQ

5KP11A

Littelfuse Inc.In Stock: 37495KP11A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP11A-B is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for a part to qualify as a direct substitute:

• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Breakdown (Min): 12.2V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 280.2A
• Power - Peak Pulse: 5000W (5kW)
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: P600, Axial
• Operating Temperature Range: -55°C ~ 175°C (TJ)

The identified substitute part, 5KP11A, maintains complete electrical and mechanical equivalence. The only difference is packaging format (Cut Tape versus Bulk), which does not affect component functionality or performance in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP11A-B and 5KP11A are active production components from Littelfuse Inc. with identical electrical performance and mechanical specifications. Selection between these parts should be based on procurement requirements and assembly processes:

The 5KP11A-B in Bulk packaging is suitable for high-volume applications where components are manually sorted or processed through custom handling systems. The 5KP11A in Cut Tape (CT) packaging is optimized for automated pick-and-place assembly equipment and tape-reel feeding systems.

Both parts maintain full ROHS3 compliance and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements. The identical operating temperature range (-55°C ~ 175°C) and electrical specifications ensure functional interchangeability in all circuit applications where the 5KP11A-B is specified.

Frequently Asked Questions (FAQ)

Q: Can 5KP11A be used as a direct replacement for 5KP11A-B?

A: Yes. The 5KP11A is electrically and mechanically equivalent to the 5KP11A-B. Both components feature identical voltage ratings (11V reverse standoff, 18.2V clamping), current handling (280.2A peak pulse), power dissipation (5000W), and operating temperature range. The only difference is packaging format (Cut Tape versus Bulk).

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging contains loose components suitable for manual handling or custom processing. Cut Tape (CT) packaging supplies components on continuous tape and reel, designed for automated assembly equipment. Both formats contain identical components with no electrical or performance differences.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the 5KP11A-B and 5KP11A carry identical certifications: ROHS3 compliance, MSL Level 1 (Unlimited), and the same REACH and ECCN classifications. They are fully interchangeable from a regulatory standpoint.

Q: Which part should be selected for automated assembly?

A: The 5KP11A in Cut Tape (CT) packaging is designed for automated pick-and-place systems and tape-reel feeding. The 5KP11A-B in Bulk packaging is suitable for manual assembly or custom handling processes.

Q: Do these parts require special storage or handling?

A: No. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity ratings, indicating no special storage, drying, or handling requirements beyond standard component storage practices.