5KP58 Transient Voltage Suppressor (TVS) Equivalent & Substitute Parts

Part Overview

The 5KP58 is a unidirectional Zener-type transient voltage suppressor manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 58V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The 5KP58 is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. Active alternatives from Littelfuse and other manufacturers provide direct functional replacement with maintained electrical specifications and compliance certifications.

Substiute Parts

5KP58

Littelfuse Inc.In Stock: 9715KP58 Datasheet

Current PartRFQ

5KP58A

LittelfuseIn Stock: 44115KP58A Datasheet

DirectRFQ

5KP58A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 46865KP58A-E3/54 Datasheet

MFR RecommendedRFQ

5KP58E3/TR13

Microchip TechnologyIn Stock: 9835KP58E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP58 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must be 58V to maintain circuit protection threshold
• Voltage - Breakdown (Min): Must fall within the specified range to ensure consistent triggering behavior
• Power - Peak Pulse: Must be rated at 5000W (5kW) to handle transient energy
• Mounting Type: Must be Through Hole to maintain PCB compatibility
• Package / Case: Must be P600 Axial to ensure mechanical fit and lead spacing
• Type: Must be Zener unidirectional TVS diode
• Operating Temperature Range: Must support -55°C to 175°C (TJ) for thermal compatibility
• RoHS Status: Must maintain ROHS3 Compliant certification

All substitute parts listed below meet these mandatory criteria. Variations in voltage clamping characteristics and peak pulse current are within acceptable engineering tolerances for this product category and do not affect functional substitutability.

Parameter Comparison

Engineering Selection Recommendations

5KP58A (Littelfuse) is the primary direct substitute. This part maintains active product status with Littelfuse, ensuring long-term availability and supply chain stability. It shares identical voltage ratings and power specifications with the obsolete 5KP58, with marginally lower clamping voltage (93.6V vs. 98.28V) and higher peak pulse current (54.5A), representing improved performance characteristics. ROHS3 compliance and MSL 1 rating are maintained.

5KP58A-E3/54 (Vishay TransZorb®) provides cross-manufacturer substitution from Vishay General Semiconductor - Diodes Division. This part delivers equivalent electrical performance with 94V clamping voltage and 53.4A peak pulse current. Active product status and full compliance certifications support long-term design continuity. Selection of this part introduces a secondary-source option for supply chain redundancy.

5KP58E3/TR13 (Microchip Technology) offers an alternative from Microchip Technology with active product status. This part exhibits higher clamping voltage (103V) and lower peak pulse current (48.5A) compared to the original 5KP58. All mandatory electrical and thermal specifications are met. Tape & Reel packaging supports high-volume automated assembly workflows.

All three substitute parts maintain compliance with ROHS3 and REACH regulations, supporting modern procurement and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5KP58A directly replace the obsolete 5KP58 in existing designs?

A: Yes. The 5KP58A maintains the same 58V reverse standoff voltage, 5000W peak pulse power rating, P600 axial through-hole package, and operating temperature range. The lower clamping voltage (93.6V vs. 98.28V) and higher peak pulse current (54.5A) represent improved transient suppression performance within acceptable engineering tolerances for this product category.

Q: What is the difference between the Littelfuse 5KP58A and Vishay 5KP58A-E3/54?

A: Both parts share identical voltage ratings (58V standoff, 64.4V breakdown minimum) and 5000W power specifications. The Vishay part exhibits 94V clamping voltage and 53.4A peak pulse current, compared to Littelfuse's 93.6V and 54.5A respectively. These differences fall within acceptable substitution tolerances. Selection depends on supply availability and secondary-source requirements.

Q: Why does the Microchip 5KP58E3/TR13 have higher clamping voltage (103V)?

A: The 103V clamping voltage is a characteristic of Microchip's manufacturing process for this part number. All parts maintain the same 58V reverse standoff voltage and 5000W power rating. The higher clamping voltage may provide additional margin in applications with higher transient peaks, while the lower peak pulse current (48.5A) remains within acceptable performance parameters for general-purpose protection.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant and REACH Unaffected, meeting modern environmental and regulatory requirements for component procurement and assembly.

Q: What packaging options are available for these substitutes?

A: The Littelfuse 5KP58A is supplied in Cut Tape (CT) packaging. The Vishay 5KP58A-E3/54 is also available in Cut Tape (CT). The Microchip 5KP58E3/TR13 is supplied in Tape & Reel (TR) format, supporting high-volume automated assembly. All maintain the same P600 axial through-hole package for PCB compatibility.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All substitute parts meet identical electrical specifications for voltage rating, power handling, and thermal range. Cross-manufacturer substitution is supported for supply chain flexibility. Verify component availability and lead times with your supplier before finalizing procurement decisions.