5KP30C-B Equivalent & Substitute Parts

Part Overview

The 5KP30C-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 30V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The product is currently obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

5KP30C-B

Littelfuse Inc.In Stock: 9165KP30C-B Datasheet

Current PartRFQ

5KP30CA

Diotec SemiconductorIn Stock: 41935KP30CA Datasheet

DirectRFQ

5KP30CA-B

LittelfuseIn Stock: 12045KP30CA-B Datasheet

DirectRFQ

5KP30CA-TP

Micro Commercial CoIn Stock: 340395KP30CA-TP Datasheet

MFR RecommendedRFQ

5KP30CE3/TR13

Microchip TechnologyIn Stock: 11005KP30CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP30C-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 30V (exact match required)
• Voltage - Breakdown (Min): minimum 31.55V
• Power - Peak Pulse: 5000W (5kW) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: P600 or R-6 Axial (compatible geometries)
• Operating Temperature Range: minimum -55°C to 175°C coverage
• Type: Zener (exact match required)
• Bidirectional Channels: 1 (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All substitute parts listed meet these criteria and are qualified for direct replacement in applications originally designed for the 5KP30C-B.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with ROHS3 compliance and meet the electrical and mechanical requirements of the obsolete 5KP30C-B.

5KP30CA (Diotec Semiconductor): Active status with P600 package compatibility. Operating temperature range extends to -50°C minimum, which covers most industrial applications. Suitable for general replacement.

5KP30CA-B (Littelfuse): Active status from the original manufacturer. Maintains full -55°C to 175°C operating range and P600 package geometry. Recommended for applications requiring extended low-temperature performance and manufacturer continuity.

5KP30CA-TP (Micro Commercial Co): Active status with R-6 axial package. Maintains full -55°C to 175°C operating range. R-6 package dimensions differ from P600; physical board layout compatibility must be verified before selection.

5KP30CE3/TR13 (Microchip Technology): Active status with P600 package compatibility and full -55°C to 175°C operating range. Voltage clamping specification of 54.6V is higher than the main part; suitable for applications where additional clamping margin is acceptable.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 5KP30C-B?

A: All four substitute parts meet the core electrical and mechanical specifications. However, physical package differences exist between P600 and R-6 axial formats. Verify board layout compatibility before selecting 5KP30CA-TP.

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 have different physical dimensions and lead spacing. Consult package datasheets to confirm PCB footprint compatibility.

Q: Does the voltage clamping difference matter?

A: The 5KP30C-B specifies 50.82V maximum clamping. Substitutes 5KP30CA and 5KP30CA-B clamp at 48.4V (lower), while 5KP30CE3/TR13 clamps at 54.6V (higher). Lower clamping provides tighter protection; higher clamping provides additional margin. Select based on circuit protection requirements.

Q: Why is the 5KP30C-B obsolete?

A: The 5KP30C-B is no longer manufactured by Littelfuse. Active equivalent products from multiple manufacturers provide equivalent functionality and are recommended for new designs and ongoing procurement.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original 5KP30C-B.

Q: Which substitute offers the best temperature range coverage?

A: The 5KP30CA-B, 5KP30CA-TP, and 5KP30CE3/TR13 all maintain the full -55°C to 175°C operating range. The 5KP30CA from Diotec operates to -50°C minimum, which is suitable for most applications but does not extend to the lowest temperature specification.