P6KE13 Equivalent & Substitute Parts

Part Overview

The P6KE13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a DO-15 (DO-204AC) axial package with a 600W peak pulse power rating and operates across a temperature range of -55°C to 175°C. The P6KE13 is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

P6KE13

Littelfuse Inc.In Stock: 922P6KE13 Datasheet

Current PartRFQ

P6KE13A

Diotec SemiconductorIn Stock: 17380P6KE13A Datasheet

DirectRFQ

P6KE15A

Fairchild SemiconductorIn Stock: 35449P6KE15A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6KE13 are qualified based on the following critical parameters that determine functional equivalence:

Mandatory Matching Criteria:

• Unidirectional Zener TVS diode topology (1 channel)
• DO-15 (DO-204AC) axial through-hole package
• 600W peak pulse power rating
• General-purpose overvoltage protection application class
• ROHS3 compliance

Allowable Parameter Variation:

• Voltage - Reverse Standoff (Typ): ±0.7V tolerance
• Voltage - Breakdown (Min): ±1.0V tolerance
• Voltage - Clamping (Max) @ Ipp: ±2.0V tolerance
• Operating Temperature: Minimum -50°C acceptable (vs. -55°C original)
• Current - Peak Pulse (10/1000µs): No specification in original; active substitutes provide this data

The P6KE13A (Diotec Semiconductor) and P6KE15A (Fairchild Semiconductor) meet these criteria as active alternatives to the obsolete P6KE13.

Parameter Comparison

Engineering Selection Recommendations

P6KE13A (Diotec Semiconductor) is the closest electrical equivalent to the P6KE13. It maintains identical reverse standoff voltage (11.1V) and provides superior clamping performance (18.2V vs. 19.11V). This part is currently active in production with substantial inventory availability (17,300 pcs). The operating temperature range is reduced to -50°C minimum, which is acceptable for most general-purpose applications. ROHS3 compliance is maintained.

P6KE15A (Fairchild Semiconductor) serves as an alternative for applications requiring higher voltage suppression. The reverse standoff voltage increases to 12.8V and clamping voltage to 21.2V, making this part suitable for circuits designed to tolerate higher transient voltage thresholds. This part is also active with extensive inventory (35,400 pcs) and maintains ROHS3 compliance. The operating temperature range matches the P6KE13A at -50°C minimum.

Both substitutes are ROHS3 compliant and maintain the identical 600W peak pulse power rating and DO-15 through-hole package configuration. Selection between P6KE13A and P6KE15A depends on the specific voltage suppression requirements of the target application circuit.

Frequently Asked Questions (FAQ)

Q: Can the P6KE13A directly replace the P6KE13 in existing designs?

A: Yes. The P6KE13A maintains the same reverse standoff voltage (11.1V), identical package (DO-15), and equivalent power rating (600W). The clamping voltage is actually lower (18.2V vs. 19.11V), providing improved transient suppression. The primary consideration is the reduced minimum operating temperature (-50°C vs. -55°C), which is acceptable unless the application specifically requires operation below -50°C.

Q: What is the difference between P6KE13A and P6KE15A?

A: The P6KE15A operates at a higher voltage level. Its reverse standoff voltage is 12.8V (vs. 11.1V for P6KE13A) and clamping voltage is 21.2V (vs. 18.2V). Use P6KE15A only if your circuit design requires suppression at higher voltage thresholds. Both parts share identical package, power rating, and compliance certifications.

Q: Are these parts pin-compatible?

A: Yes. All three parts (P6KE13, P6KE13A, P6KE15A) use the DO-15 (DO-204AC) axial package with identical pin configuration. Direct board-level substitution is possible without layout modifications.

Q: Do these parts meet RoHS requirements?

A: Yes. Both the P6KE13A and P6KE15A are ROHS3 compliant, matching the compliance status of the original P6KE13.

Q: What inventory status should I consider?

A: The P6KE13A has 17,300 pcs available and the P6KE15A has 35,400 pcs available. Both are active production parts with healthy stock levels, ensuring long-term procurement availability compared to the obsolete P6KE13.