P6KE36 Transient Voltage Suppressor (TVS) Equivalent & Substitute Parts

Part Overview

The P6KE36 is a unidirectional transient voltage suppressor diode in DO-15 (DO-204AC) axial package, rated for 600W peak pulse power and designed for general-purpose overvoltage protection applications. Manufactured by Littelfuse, this component is currently obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.

Substiute Parts

P6KE36

LittelfuseIn Stock: 749P6KE36 Datasheet

Current PartRFQ

P6KE36A

Fairchild SemiconductorIn Stock: 8470P6KE36A Datasheet

DirectRFQ

P6KE36A

Fairchild SemiconductorIn Stock: 8470P6KE36A Datasheet

DirectRFQ

P6KE36A

Fairchild SemiconductorIn Stock: 8470P6KE36A Datasheet

DirectRFQ

P6KE36A-G

Comchip TechnologyIn Stock: 1167P6KE36A-G Datasheet

MFR RecommendedRFQ

P6KE36A-HF

Comchip TechnologyIn Stock: 969P6KE36A-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6KE36 is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 30.8V
• Voltage - Breakdown (Min): 32.4V or higher
• Voltage - Clamping (Max) @ Ipp: Must not exceed 52.4V significantly
• Power - Peak Pulse: 600W minimum
• Package / Case: DO-204AC, DO-15, Axial (through-hole)
• Type: Unidirectional Zener diode
• Unidirectional Channels: 1

Substitute parts must maintain electrical performance within these parameters to ensure proper transient voltage suppression without introducing circuit incompatibility or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (P6KE36A, P6KE36A-G, P6KE36A-HF) are active products with ROHS3 compliance certifications where specified. The P6KE36A from Fairchild Semiconductor and the P6KE36A-G and P6KE36A-HF variants from Comchip Technology meet the core electrical requirements of the obsolete P6KE36.

The P6KE36A-G and P6KE36A-HF from Comchip are manufacturer-recommended substitutes with full ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). These variants offer the same 600W peak pulse power and 30.8V reverse standoff voltage as the original part.

The P6KE36A from Fairchild Semiconductor provides an alternative with identical electrical specifications and active product status, though operating temperature range is limited to -50°C minimum compared to -55°C for the original design.

Selection should prioritize availability, lead time, and compliance requirements specific to the application. All three alternatives are electrically interchangeable within the specified parameter tolerances.

Frequently Asked Questions (FAQ)

Q: Can P6KE36A substitute directly for P6KE36?

A: Yes. The P6KE36A maintains the same reverse standoff voltage (30.8V), power rating (600W), package type (DO-15), and unidirectional channel configuration. The clamping voltage is lower (49.9V vs 52.4V), which provides improved transient suppression performance.

Q: What is the difference between P6KE36A-G and P6KE36A-HF?

A: Both are Comchip variants with identical electrical specifications (30.8V standoff, 49.9V clamping, 600W power). The P6KE36A-HF belongs to the P6KE-HF series. Operating temperature ranges differ slightly: P6KE36A-G operates -55°C to 150°C, while P6KE36A-HF also operates -55°C to 150°C. Both are ROHS3 compliant with MSL 1 rating.

Q: Are all substitutes available in the same package?

A: Yes. All substitute parts use DO-204AC (DO-15) axial through-hole package, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: What is the impact of lower clamping voltage in substitutes?

A: The substitute parts clamp at 49.9V versus the original 52.4V. This represents improved transient suppression performance, as the lower clamping voltage provides faster voltage regulation during transient events while maintaining the same 30.8V reverse standoff specification.

Q: Are there temperature range considerations for substitution?

A: The original P6KE36 operates -55°C to 175°C. Fairchild P6KE36A operates -50°C to 175°C (5°C higher minimum). Comchip variants (P6KE36A-G and P6KE36A-HF) operate -55°C to 150°C (25°C lower maximum). Application temperature requirements must be verified against the selected substitute.

Q: Do all substitutes meet RoHS compliance?

A: P6KE36A-G and P6KE36A-HF are explicitly ROHS3 compliant. RoHS status for Fairchild P6KE36A is not specified in available documentation. Compliance verification with the Fairchild part should be confirmed through the manufacturer if RoHS certification is required.