15KP110CA-B Equivalent & Substitute Parts

Part Overview

The 15KP110CA-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage transient protection applications. This component features a 110V reverse standoff voltage with a 178V maximum clamping voltage and 84A peak pulse current capability in a through-hole P600 axial package. The 15KP110CA-B is classified as obsolete, making identification of functionally equivalent active alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

15KP110CA-B

Littelfuse Inc.In Stock: 110015KP110CA-B Datasheet

Current PartRFQ

15KPA110CA-B

Littelfuse Inc.In Stock: 103815KPA110CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 15KP110CA-B is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 110V
• Voltage - Clamping (Max) @ Ipp: 178V nominal range
• Current - Peak Pulse (10/1000µs): 84A nominal range
• Power - Peak Pulse: 15000W (15kW)
• Package / Case: P600, Axial through-hole configuration
• Type: Zener diode, bidirectional, single channel
• Operating Temperature Range: -55°C to 175°C (TJ)

The 15KPA110CA-B qualifies as a direct substitute based on these parameters. Variations in clamping voltage (178.6V vs. 178V) and peak pulse current (84.5A vs. 84A) remain within the functional tolerance band for this component category and do not alter circuit protection characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 15KPA110CA-B is the direct functional equivalent of the obsolete 15KP110CA-B. Both components are manufactured by Littelfuse Inc. and maintain identical electrical performance within specified tolerances. The 15KPA110CA-B is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts comply with ROHS3 standards and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. The 15KPA110CA-B is supplied in bulk packaging, whereas the 15KP110CA-B was supplied in standard packaging. This distinction affects procurement logistics but does not impact electrical or mechanical compatibility.

For new designs or component replacement in existing applications, the 15KPA110CA-B is the recommended selection due to its active product status and equivalent performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the 15KPA110CA-B be used as a direct replacement for the 15KP110CA-B in existing circuits?

A: Yes. Both components share identical electrical specifications within functional tolerance bands. The P600 axial through-hole package is identical, and pinout compatibility is maintained. No circuit modifications are required.

Q: What is the significance of the minor differences in clamping voltage (178V vs. 178.6V) and peak pulse current (84A vs. 84.5A)?

A: These variations fall within the normal manufacturing tolerance band for TVS diodes in this category and do not affect circuit protection performance. Both values remain within the specified maximum ratings for the application.

Q: Why is the 15KP110CA-B classified as obsolete?

A: The 15KP series has been superseded by the 15KPA series within Littelfuse's product portfolio. The 15KPA110CA-B provides equivalent functionality with active manufacturing support.

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

A: Both parts are ROHS3 compliant and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0080). No compliance barriers exist for substitution.

Q: Does packaging format (bulk vs. standard) affect electrical performance?

A: No. Packaging format affects only procurement and handling logistics. Electrical and mechanical specifications remain identical regardless of packaging configuration.

Q: What is the operating temperature range for both components?

A: Both the 15KP110CA-B and 15KPA110CA-B operate across -55°C to 175°C (junction temperature), ensuring performance consistency across industrial and commercial temperature environments.