3KP160C-B Equivalent & Substitute Parts

Part Overview

The 3KP160C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 160V reverse standoff voltage with a 271.95V maximum clamping voltage and 11.6A peak pulse current capability in a through-hole P600 axial package. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component sourcing.

Substiute Parts

3KP160C-B

Littelfuse Inc.In Stock: 9513KP160C-B Datasheet

Current PartRFQ

5KP160CA-B

Littelfuse Inc.In Stock: 11265KP160CA-B Datasheet

DirectRFQ

15KPA160CAE3/TR13

Microchip TechnologyIn Stock: 90015KPA160CAE3/TR13 Datasheet

MFR RecommendedRFQ

30KP160CA-TP

Micro Commercial CoIn Stock: 83730KP160CA-TP Datasheet

MFR RecommendedRFQ

3KP160CA-TP

Micro Commercial CoIn Stock: 9453KP160CA-TP Datasheet

MFR RecommendedRFQ

5KP160CA-TP

Micro Commercial CoIn Stock: 14775KP160CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 3KP160C-B is determined by the following critical parameters:

• Voltage - Reverse Standoff: Must be 160V
• Bidirectional Channels: Must be 1
• Type: Must be Zener
• Mounting Type: Must be Through Hole
• Operating Temperature Range: Must support -55°C ~ 175°C (TJ)
• Package Compatibility: P600 or R-6 axial packages are acceptable

Substitute parts are grouped into two categories based on power dissipation capability and package type. Parts with matching standoff voltage, breakdown characteristics, and thermal operating range are considered functionally equivalent. Peak pulse current and clamping voltage may vary within acceptable limits for the application, provided the reverse standoff voltage remains constant at 160V.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Power Rating):

3KP160CA-TP (Micro Commercial Co) is the primary substitute for the 3KP160C-B. Both parts share identical peak pulse power (3000W) and peak pulse current (11.6A), with matching voltage characteristics and operating temperature range. This part is active and REACH compliant, providing long-term availability.

Higher Power Capability Substitutes:

5KP160CA-B and 5KP160CA-TP provide 5000W peak pulse power with 19.7A peak pulse current, maintaining the 160V reverse standoff voltage. These parts are suitable for applications requiring increased transient energy absorption while preserving voltage regulation characteristics.

15KPA160CAE3/TR13 (Microchip Technology) offers 15000W peak pulse power with 58.4A peak pulse current in tape and reel packaging. This part is recommended for high-energy transient protection applications requiring superior surge handling capability.

30KP160CA-TP (Micro Commercial Co) provides the highest power dissipation at 30000W with R-6 axial package configuration. This part is suitable for extreme transient protection requirements.

Package Considerations:

The original 3KP160C-B uses P600 axial packaging. Substitutes 5KP160CA-B and 15KPA160CAE3/TR13 maintain P600 packaging for direct mechanical compatibility. Parts 3KP160CA-TP, 5KP160CA-TP, and 30KP160CA-TP use R-6 axial packaging, which may require PCB layout verification for mechanical fit.

All substitute parts maintain ROHS3 compliance and support the full -55°C to 175°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can I use 5KP160CA-B as a direct replacement for 3KP160C-B?

A: Yes. Both parts maintain 160V reverse standoff voltage, identical operating temperature range, and through-hole P600 axial packaging. The 5KP160CA-B provides higher peak pulse power (5000W vs 3000W) and current (19.7A vs 11.6A), making it suitable for applications with increased transient energy requirements while maintaining voltage regulation at 160V.

Q: What is the difference between P600 and R-6 axial packages?

A: Both are through-hole axial packages formats for TVS diodes. P600 and R-6 differ in physical dimensions and lead spacing. Verify PCB footprint compatibility before selecting parts with different package designations.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant. The 3KP160CA-TP does not specify RoHS status in the provided data; verify compliance requirements with the manufacturer if needed.

Q: Which substitute should I select for maximum transient protection?

A: 30KP160CA-TP provides the highest power dissipation capability at 30000W. Selection depends on your circuit's transient energy profile and thermal management requirements. All substitutes maintain the 160V reverse standoff voltage required for voltage regulation.

Q: Can I use Microchip's 15KPA160CAE3/TR13 in place of the Littelfuse 3KP160C-B?

A: Yes. The 15KPA160CAE3/TR13 maintains 160V reverse standoff voltage, identical operating temperature range, and P600 axial packaging. It provides significantly higher peak pulse power (15000W vs 3000W) and current (58.4A vs 11.6A), suitable for high-energy transient applications.

Q: What packaging format should I specify for new designs?

A: For new designs, select from active product status parts. 5KP160CA-TP and 3KP160CA-TP are recommended for standard applications. Verify package availability and PCB compatibility with your manufacturing partner before design finalization.