3KP60C-B Equivalent & Substitute Parts

Part Overview

The 3KP60C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This bidirectional zener diode features a 60V reverse standoff voltage and 101.64V maximum clamping voltage with 31A peak pulse current capability. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility for new designs and ongoing production requirements.

Substiute Parts

3KP60C-B

Littelfuse Inc.In Stock: 11283KP60C-B Datasheet

Current PartRFQ

5KP60CA-B

LittelfuseIn Stock: 9145KP60CA-B Datasheet

DirectRFQ

15KP60CA-TP

Micro Commercial CoIn Stock: 102715KP60CA-TP Datasheet

MFR RecommendedRFQ

15KPA60CAE3/TR13

Microchip TechnologyIn Stock: 72515KPA60CAE3/TR13 Datasheet

MFR RecommendedRFQ

30KP60CA-TP

Micro Commercial CoIn Stock: 83130KP60CA-TP Datasheet

MFR RecommendedRFQ

3KP60CA-TP

Micro Commercial CoIn Stock: 8363KP60CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3KP60C-B is determined by the following critical parameters:

• Voltage - Reverse Standoff: 60V (all substitutes must match)
• Voltage - Breakdown (Min): 63.18V to 67V range (acceptable tolerance)
• Voltage - Clamping (Max) @ Ipp: 96.8V to 102V range (acceptable tolerance)
• Current - Peak Pulse (10/1000µs): minimum 31A
• Power - Peak Pulse: minimum 3000W
• Operating Temperature: -55°C ~ 175°C (TJ)
• Mounting Type: Through Hole
• Type: Zener, Bidirectional, single channel
• RoHS3 Compliance: required

Substitutes are grouped into two categories based on package compatibility and power rating:

Category A - Direct Package Match (P600): 5KP60CA-B and 15KPA60CAE3/TR13 maintain identical P600 axial package specifications.

Category B - Alternative Package (R-6): 15KP60CA-TP, 30KP60CA-TP, and 3KP60CA-TP use R-6 axial package with equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Package Replacement (P600 Axial):

The 5KP60CA-B (Littelfuse, Active status) provides the closest functional match with identical package geometry. This part exceeds the original 3KP60C-B specifications in peak pulse current (52.7A vs. 31A) and power rating (5000W vs. 3000W), ensuring superior transient protection margin while maintaining voltage parameters within acceptable tolerance.

The 15KPA60CAE3/TR13 (Microchip Technology, Active status) offers enhanced performance with 155A peak pulse current and 15000W power rating in the same P600 package. This option is suitable for applications requiring increased protection headroom.

For Alternative Package Compatibility (R-6 Axial):

The 3KP60CA-TP (Micro Commercial Co, Active status) maintains electrical equivalence to the original part with identical 31A peak pulse current and 3000W power rating, differing only in package form factor (R-6 vs. P600). This substitution requires mechanical board layout verification.

The 15KP60CA-TP and 30KP60CA-TP provide higher power ratings (15000W and 30000W respectively) for applications demanding enhanced transient suppression capability.

All recommended substitutes are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and operating temperature range of -55°C to 175°C (TJ), matching the original specification.

Frequently Asked Questions (FAQ)

Q: Can I use 5KP60CA-B as a direct replacement for 3KP60C-B?

A: Yes. Both parts share identical 60V reverse standoff voltage, P600 axial package, and operating temperature range. The 5KP60CA-B exceeds the original specifications with higher peak pulse current (52.7A vs. 31A) and power rating (5000W vs. 3000W), providing enhanced protection without functional compromise.

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

A: Both are through-hole axial packages for TVS diodes. P600 and R-6 differ in physical dimensions and lead spacing. Package selection depends on PCB layout constraints and component footprint availability. Verify mechanical compatibility before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitutes meet RoHS3 compliance requirements with MSL 1 (Unlimited) moisture sensitivity rating, matching the original 3KP60C-B specification.

Q: Why is the 3KP60C-B classified as obsolete?

A: Obsolescence reflects manufacturer discontinuation. Active alternatives with equivalent or superior electrical performance are available from multiple manufacturers, ensuring design continuity and supply chain reliability.

Q: Can I substitute a higher power-rated part like 30KP60CA-TP for the 3KP60C-B?

A: Yes. The 30KP60CA-TP maintains the required 60V reverse standoff voltage and acceptable clamping voltage range (102V). The higher power rating (30000W vs. 3000W) provides additional transient suppression capability. Verify package compatibility (R-6 vs. P600) for your application.

Q: What parameters must remain constant for substitution?

A: The 60V reverse standoff voltage must be maintained. Clamping voltage, breakdown voltage, and peak pulse current must fall within acceptable tolerance ranges. Operating temperature range, mounting type (through-hole), and RoHS compliance must match or exceed original specifications.