Equivalent & Substitute Parts for 6KPE33AH

Part Overview

The 6KPE33AH is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Eaton - Electronics Division. This through-hole axial package device is designed for transient voltage protection applications, featuring a 33V reverse standoff voltage and 53.3V maximum clamping voltage. The part is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Alternative equivalent parts are necessary when addressing supply chain constraints, packaging format requirements, or specific manufacturer preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

6KPE33AH

Eaton - Electronics DivisionIn Stock: 11516KPE33AH Datasheet

Current PartRFQ

5KP33A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 28815KP33A-E3/54 Datasheet

SimilarRFQ

TP5KP33A

Littelfuse Inc.In Stock: 2940TP5KP33A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6KPE33AH is determined by strict electrical and mechanical parameter matching. The following criteria establish substitution validity:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 33V
• Voltage - Breakdown (Min): 36.7V
• Voltage - Clamping (Max) @ Ipp: 53.3V
• Unidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: Axial configuration
• Type: Zener diode

Allowable Variations:

• Current - Peak Pulse (10/1000µs): Substitute parts may have lower peak pulse current ratings (93.8A to 95.7A) compared to the main part (123.8A), provided the application does not require the higher current specification
• Power - Peak Pulse: Substitute parts rated at 5000W (5kW) are acceptable alternatives to the 6600W specification
• Operating Temperature Range: Substitute parts with -55°C to 150°C range are compatible with applications not requiring the full -55°C to 175°C range
• Packaging Format: Cut Tape (CT) and Tape & Reel (TR) formats are mechanically interchangeable for through-hole axial components

The identified substitute parts (5KP33A-E3/54 and TP5KP33A) meet all critical electrical parameters while offering alternative sourcing options and packaging configurations.

Parameter Comparison

Engineering Selection Recommendations

6KPE33AH (Eaton - Electronics Division): This part is the primary reference component with Active product status and AEC-Q101 automotive qualification. It provides the highest peak pulse current rating (123.8A) and peak pulse power (6600W) among the three options, with an extended operating temperature range to 175°C. Selection is appropriate for applications requiring maximum transient suppression capability and full automotive-grade specifications.

5KP33A-E3/54 (Vishay General Semiconductor - Diodes Division): This substitute part maintains identical voltage specifications and operating temperature range (-55°C to 175°C) with ROHS3 compliance. The peak pulse current is reduced to 93.8A with corresponding 5000W peak pulse power. This part is suitable for applications where the lower current rating is acceptable and alternative sourcing from Vishay is preferred. Product status is Active with general-purpose application classification.

TP5KP33A (Littelfuse Inc.): This substitute part matches all critical voltage parameters with AEC-Q101 automotive qualification equivalent to the main part. The operating temperature range is limited to -55°C to 150°C, and peak pulse specifications are 95.7A current and 5000W power. ROHS3 compliance is confirmed. Selection is appropriate for automotive applications where Littelfuse sourcing is required and the 150°C maximum junction temperature is acceptable.

All three parts share identical REACH and ECCN classifications, confirming regulatory compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can 5KP33A-E3/54 directly replace 6KPE33AH in all applications?

A: The 5KP33A-E3/54 is electrically compatible for voltage protection functions, matching all critical voltage parameters (33V standoff, 36.7V breakdown, 53.3V clamping). However, the peak pulse current is reduced from 123.8A to 93.8A. Substitution is valid only when the application does not require the higher current specification. Both parts support the full -55°C to 175°C operating temperature range.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are packaging and delivery formats for through-hole axial components. Both formats contain identical components in P600 axial packages. Cut Tape is supplied in individual strips, while Tape & Reel is supplied on continuous reels. The physical component and electrical performance are identical; packaging format selection depends on assembly process requirements and inventory management preferences.

Q: Is TP5KP33A suitable for applications requiring 175°C operation?

A: No. The TP5KP33A has a maximum operating temperature of 150°C, compared to 175°C for both the 6KPE33AH and 5KP33A-E3/54. Applications requiring junction temperatures above 150°C must use either the 6KPE33AH or 5KP33A-E3/54.

Q: Do all three parts have automotive qualification?

A: The 6KPE33AH and TP5KP33A both carry AEC-Q101 automotive qualification. The 5KP33A-E3/54 is classified as general-purpose without explicit automotive qualification, though it maintains ROHS3 compliance and identical regulatory status (REACH Unaffected, EAR99).

Q: What is the significance of the peak pulse current difference between parts?

A: Peak pulse current (10/1000µs) determines the maximum transient current the TVS diode can suppress. The 6KPE33AH handles 123.8A, while both substitute parts handle approximately 95.7A (TP5KP33A) and 93.8A (5KP33A-E3/54). Applications with transient currents exceeding 95.7A require the 6KPE33AH. Applications with lower transient current requirements can use either substitute part.

Q: Are moisture sensitivity levels identical across all three parts?

A: Yes. All three parts have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.