MP6KE22AE3 Equivalent & Substitute Parts

Part Overview

The MP6KE22AE3 is an active-status transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This unidirectional zener diode operates with a reverse standoff voltage of 18.8V and provides clamping protection at 30.6V maximum, with a peak pulse current rating of 20A. The component is housed in a T-18 axial through-hole package and qualifies under MIL-PRF-19500 military specifications.

Equivalent and substitute parts are identified to address inventory availability, supply chain continuity, or specific application requirements while maintaining electrical and mechanical compatibility within the defined parameter tolerances.

Substiute Parts

MP6KE22AE3

Microchip TechnologyIn Stock: 996MP6KE22AE3 Datasheet

Current PartRFQ

P6KE22A

Fairchild SemiconductorIn Stock: 28202P6KE22A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP6KE22AE3 are identified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criterion is functional equivalence across the following parameters:

• Voltage - Reverse Standoff (Typ): 18.8V
• Voltage - Breakdown (Min): 20.9V
• Voltage - Clamping (Max) @ Ipp: 30.6V
• Current - Peak Pulse (10/1000µs): 20A
• Power - Peak Pulse: 600W
• Type: Unidirectional Zener
• Mounting Type: Through Hole

The P6KE22A from Fairchild Semiconductor meets all electrical specifications and operates within compatible temperature ranges. While the package form differs (DO-15/DO-204AC versus T-18), both are axial through-hole configurations suitable for PCB mounting in general-purpose applications. This substitution maintains electrical performance and functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

MP6KE22AE3 (Microchip Technology)

Select this part when military-grade qualification (MIL-PRF-19500) is a design requirement. The component is active in production with 926 units in stock. Operating temperature range is -65°C to 150°C. This part is RoHS non-compliant.

P6KE22A (Fairchild Semiconductor)

Select this part as an electrical equivalent when package form flexibility is acceptable. The P6KE22A is active in production with significantly higher inventory availability (28,100 units in stock). Operating temperature range is -50°C to 175°C, providing extended high-temperature performance. The DO-15 package is a standard axial through-hole form compatible with general-purpose PCB layouts. This part is suitable for applications where military qualification is not mandated.

Both parts are classified under ECCN EAR99 and HTSUS 8541.10.0080, indicating equivalent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the P6KE22A replace the MP6KE22AE3 in all applications?

A: The P6KE22A is electrically equivalent across all critical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and peak pulse power. Both are unidirectional zener TVS diodes rated for general-purpose protection. The primary difference is package form (DO-15 versus T-18) and military qualification status. Substitution is valid for applications where MIL-PRF-19500 certification is not required and PCB layout accommodates the DO-15 axial package.

Q: What is the difference between the T-18 and DO-15 packages?

A: Both T-18 and DO-15 are axial through-hole packages for discrete diodes. The T-18 package is specific to Microchip's product line, while DO-15 (DO-204AC) is an industry-standard package used by multiple manufacturers including Fairchild. Both packages mount identically on PCBs with axial lead spacing. Physical dimensions may vary slightly; consult manufacturer datasheets for precise lead diameter and body length specifications if space constraints exist.

Q: Does the P6KE22A meet military specifications?

A: The P6KE22A does not carry MIL-PRF-19500 qualification. If military-grade certification is a design requirement, the MP6KE22AE3 is the appropriate selection. For commercial and industrial applications without military qualification mandates, the P6KE22A is functionally equivalent.

Q: Are there inventory or lead-time advantages to using the P6KE22A?

A: Yes. The P6KE22A has 28,100 units in stock compared to 926 units for the MP6KE22AE3, indicating significantly higher availability. This inventory difference may provide supply chain advantages for high-volume production or rapid-turnaround requirements.

Q: What is the operating temperature range difference?

A: The MP6KE22AE3 operates from -65°C to 150°C (junction temperature). The P6KE22A operates from -50°C to 175°C (junction temperature). The P6KE22A provides extended high-temperature performance (25°C higher maximum). For applications operating near or above 150°C, the P6KE22A is the preferred selection. For cryogenic applications below -50°C, the MP6KE22AE3 is required.

Q: Are both parts RoHS compliant?

A: The MP6KE22AE3 is RoHS non-compliant. RoHS compliance status for the P6KE22A is not specified in the provided data. Verify RoHS compliance requirements with the Fairchild Semiconductor datasheet if regulatory compliance is a design constraint.