30KP54A-TP Equivalent & Substitute Parts

Part Overview

The 30KP54A-TP is an active Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection applications. This unidirectional zener diode operates across a temperature range of -55°C to 175°C and is packaged in an R-6 axial through-hole configuration. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this TVS diode category.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	54	V
Voltage - Breakdown (Min)	60.3	V
Voltage - Clamping (Max) @ Ipp	91.4	V
Power - Peak Pulse	30000	W
Operating Temperature	-55 to 175	°C
Mounting Type	Through Hole	—
Package / Case	R-6, Axial	—
Type	Zener	—
Unidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the 30KP54A-TP is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 54V
Voltage - Breakdown (Min): 60.3V minimum
Voltage - Clamping (Max) @ Ipp: 91.4V maximum
Power - Peak Pulse: 30000W (30kW)
Mounting Type: Through Hole
Type: Zener, Unidirectional
Operating Temperature Range: -55°C to 175°C
RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain identical reverse standoff voltage, equivalent or superior clamping voltage performance, and matching or exceeding power dissipation capability. All substitutes must be through-hole mounted zener diodes with unidirectional configuration and ROHS3 compliance. Package form factor variations (R-6 vs. P600 axial) are permitted when mechanical fit is verified in the application circuit.

Parameter Comparison

Parameter	30KP54A-TP (Main)	30KPA54A	5KP54A	5KP54A-E3/54
Manufacturer	Micro Commercial Co	MDE Semiconductor Inc	Littelfuse Inc.	Vishay General Semiconductor
Voltage - Reverse Standoff (Typ)	54V	54V	54V	54V
Voltage - Breakdown (Min)	60.3V	60.3V	60V	60V
Voltage - Clamping (Max) @ Ipp	91.4V	91.4V	87.1V	87.1V
Current - Peak Pulse (10/1000µs)	—	331.5A	58.6A	57.4A
Power - Peak Pulse	30000W	30000W	5000W	5000W
Operating Temperature	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	R-6, Axial	P600, Axial	P600, Axial	P600, Axial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

The 30KPA54A from MDE Semiconductor Inc is a direct electrical equivalent with identical voltage ratings (54V standoff, 60.3V breakdown, 91.4V clamping) and matching 30kW peak pulse power rating. Both the main part and this substitute maintain ROHS3 compliance and active product status. The primary difference is packaging: 30KPA54A uses P600 axial form factor versus the R-6 axial form of the 30KP54A-TP. Mechanical fit verification is required when substituting between these package types.

The 5KP54A and 5KP54A-E3/54 are functional substitutes with equivalent reverse standoff voltage (54V) and acceptable breakdown voltage (60V minimum). However, these parts operate at reduced power dissipation (5kW versus 30kW) and exhibit lower clamping voltage (87.1V versus 91.4V). These substitutes are suitable only for applications where peak pulse power requirements do not exceed 5kW and where the lower clamping voltage remains within circuit protection margins. Both maintain ROHS3 compliance and active product status. The 5KP54A-E3/54 is manufactured by Vishay under the TransZorb® series designation.

Frequently Asked Questions (FAQ)

Q: Can the 30KPA54A directly replace the 30KP54A-TP without circuit modification?

A: The 30KPA54A provides identical electrical performance (54V standoff, 60.3V breakdown, 91.4V clamping, 30kW peak pulse). The primary consideration is package form factor: 30KPA54A uses P600 axial packaging while 30KP54A-TP uses R-6 axial packaging. Both are through-hole mounted. Mechanical fit on the PCB must be verified before substitution.

Q: Why do the 5KP54A and 5KP54A-E3/54 have lower power ratings?

A: The 5KP series is designed for 5kW peak pulse applications, compared to the 30kW rating of the 30KP series. These parts are suitable only when application peak pulse power requirements do not exceed 5kW. The lower clamping voltage (87.1V versus 91.4V) must also be verified as acceptable for the protection circuit.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 30KPA54A, 5KP54A, and 5KP54A-E3/54 are all ROHS3 compliant, matching the compliance status of the 30KP54A-TP.

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

A: Both R-6 and P600 are axial through-hole package forms for diodes. The primary difference is physical dimensions and lead spacing. Mechanical compatibility with the PCB layout must be confirmed when substituting between these package types.

Q: Can the 5KP54A-E3/54 be used in high-power transient suppression applications?

A: The 5KP54A-E3/54 is rated for 5kW peak pulse power, making it unsuitable for applications requiring 30kW suppression capability. Use this part only when application requirements are confirmed to be within the 5kW power envelope.

Q: What is the REACH status of these substitute parts?

A: The 30KP54A-TP, 5KP54A, and 5KP54A-E3/54 are REACH Unaffected. The 30KPA54A has REACH information available upon request from the manufacturer.

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