P6KE22C Equivalent & Substitute Parts

Part Overview

The P6KE22C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a bidirectional configuration in a DO-15 axial package with a 600W peak pulse power rating and 18.8V reverse standoff voltage. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

P6KE22C

Littelfuse Inc.In Stock: 849P6KE22C Datasheet

Current PartRFQ

P6KE22CA

Diotec SemiconductorIn Stock: 88703P6KE22CA Datasheet

MFR RecommendedRFQ

P6KE22CA

Diotec SemiconductorIn Stock: 88703P6KE22CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6KE22C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 18.8V (must match)
• Voltage - Breakdown (Min): within acceptable range for the application
• Voltage - Clamping (Max) @ Ipp: within acceptable range for the application
• Power - Peak Pulse: 600W (must match)
• Type: Zener bidirectional configuration

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-204AC (DO-15) Axial
• Bidirectional Channels: 1

Compliance Criteria:

• RoHS Status: ROHS3 Compliant

The P6KE22CA from Diotec Semiconductor meets all substitution criteria, maintaining identical reverse standoff voltage, peak pulse power rating, package configuration, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The P6KE22CA (Diotec Semiconductor) is a direct substitute for the obsolete P6KE22C. Both components maintain identical reverse standoff voltage (18.8V) and peak pulse power rating (600W), ensuring functional equivalence in overvoltage protection circuits. The P6KE22CA offers the additional advantage of active product status, providing ongoing availability and supply chain continuity.

Both parts are ROHS3 compliant and utilize identical DO-15 axial through-hole packaging, eliminating any PCB layout or assembly modifications. The P6KE22CA's clamping voltage (30.6V) is lower than the P6KE22C (32.13V), providing enhanced protection margins in transient suppression applications.

Frequently Asked Questions (FAQ)

Q: Can the P6KE22CA directly replace the P6KE22C without PCB modifications?

A: Yes. Both components use identical DO-15 axial through-hole packaging and pin configuration, requiring no PCB layout changes.

Q: What is the significance of the reverse standoff voltage matching at 18.8V?

A: The reverse standoff voltage determines the normal operating bias point of the TVS diode. Matching this parameter ensures the substitute maintains the same leakage current and voltage regulation characteristics as the original component.

Q: Why is the P6KE22CA's clamping voltage lower than the P6KE22C?

A: The P6KE22CA's maximum clamping voltage of 30.6V compared to the P6KE22C's 32.13V represents tighter voltage regulation. This provides improved transient suppression performance while remaining within acceptable design tolerances for general-purpose applications.

Q: Are there any temperature range differences to consider?

A: The P6KE22C operates from -55°C to 175°C, while the P6KE22CA operates from -50°C to 175°C. For applications requiring operation below -50°C, the original P6KE22C specifications must be verified against design requirements.

Q: Is the P6KE22CA available in production quantities?

A: Yes. The P6KE22CA is classified as active product status with 88,623 pieces in stock, ensuring reliable procurement and supply chain availability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the P6KE22C and P6KE22CA are ROHS3 compliant, meeting current environmental and regulatory requirements.