P6KE75 Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The P6KE75 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., housed in a DO-204AC (DO-15) axial through-hole package. This component is designed for general-purpose transient voltage protection applications. The P6KE75 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across reverse standoff voltage, clamping voltage, peak pulse current, and thermal operating range to ensure functional equivalence in circuit protection applications.

Substiute Parts

P6KE75

Littelfuse Inc.In Stock: 1143P6KE75 Datasheet

Current PartRFQ

P6KE75A

Fairchild SemiconductorIn Stock: 3064P6KE75A Datasheet

DirectRFQ

SA58A

Taiwan Semiconductor CorporationIn Stock: 847SA58A Datasheet

MFR RecommendedRFQ

SA64A

Taiwan Semiconductor CorporationIn Stock: 3436SA64A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE75 is determined by the following critical parameters:

• Reverse Standoff Voltage (Typ): Must be within the range of 58V to 64.1V to maintain circuit protection thresholds
• Clamping Voltage (Max) @ Ipp: Must not exceed 108.15V to ensure adequate transient suppression
• Peak Pulse Power: Minimum 500W required for equivalent energy dissipation capability
• Operating Temperature Range: Must support -55°C to 175°C to match thermal specifications
• Package Type: DO-204AC (DO-15) axial through-hole configuration required for mechanical compatibility
• Unidirectional Configuration: Single-channel Zener diode topology

The substitute parts P6KE75A, SA58A, and SA64A meet these criteria with variations in peak pulse current and specific voltage parameters within acceptable engineering tolerances for general-purpose transient voltage protection.

Parameter Comparison

Engineering Selection Recommendations

P6KE75A (Fairchild Semiconductor): This direct equivalent maintains the identical reverse standoff voltage (64.1V) and clamping voltage (103V) as the original P6KE75. The P6KE75A is in active production status, ensuring long-term availability. Peak pulse power is rated at 600W, matching the original specification. The operating temperature range extends to -50°C minimum, which is 5°C higher than the P6KE75 specification. ROHS3 compliance status is not specified in available documentation.

SA64A (Taiwan Semiconductor Corporation): This substitute maintains the closest voltage parameters to the P6KE75, with a reverse standoff voltage of 64V and clamping voltage of 103V. The SA64A is in active production with confirmed ROHS3 compliance and REACH unaffected status. Peak pulse power is rated at 500W, representing a 100W reduction from the original specification. Operating temperature range is -55°C to 175°C, fully matching the P6KE75. This part is available in Tape & Reel packaging.

SA58A (Taiwan Semiconductor Corporation): This substitute operates at a lower reverse standoff voltage of 58V with a clamping voltage of 93.6V. The SA58A is in active production with ROHS3 compliance and REACH unaffected status. Peak pulse power is rated at 500W. Operating temperature range is -55°C to 175°C, fully matching the P6KE75. This part is suitable for applications where lower voltage thresholds are acceptable. Available in Tape & Reel packaging.

For applications requiring exact voltage parameter matching and maximum power dissipation, P6KE75A is the primary recommendation. For applications where voltage parameters can vary within the specified ranges and long-term active production status is prioritized, SA64A provides equivalent functionality with full compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can SA58A be used as a direct replacement for P6KE75?

A: SA58A is functionally compatible for general-purpose transient voltage protection but operates at a lower reverse standoff voltage (58V vs. 64.1V). Selection depends on circuit requirements. If the circuit is designed for 64V standoff protection, SA58A may not provide equivalent protection thresholds.

Q: What is the difference between P6KE75 and P6KE75A?

A: Both parts maintain identical reverse standoff voltage (64.1V) and clamping voltage (103V) specifications. P6KE75A is manufactured by Fairchild Semiconductor and is in active production, whereas P6KE75 (Littelfuse) is obsolete. Both are housed in DO-204AC (DO-15) axial packages with 600W peak pulse power ratings.

Q: Are all substitute parts available in the same package?

A: Yes. P6KE75A, SA58A, and SA64A are all available in DO-204AC (DO-15) axial through-hole packages, ensuring mechanical and pin compatibility. SA58A and SA64A are supplied in Tape & Reel packaging format.

Q: What is the impact of the 100W power reduction in SA58A and SA64A?

A: SA58A and SA64A are rated at 500W peak pulse power compared to the P6KE75 specification of 600W. This represents a 16.7% reduction in peak pulse power dissipation capability. Applications requiring the full 600W dissipation capacity should use P6KE75A.

Q: Do all substitute parts meet RoHS compliance?

A: P6KE75A compliance status is not specified. SA58A and SA64A are confirmed ROHS3 compliant. For applications requiring RoHS certification, SA58A or SA64A are recommended.

Q: What is the operating temperature difference between P6KE75 and P6KE75A?

A: P6KE75 operates from -55°C to 175°C. P6KE75A operates from -50°C to 175°C, representing a 5°C higher minimum temperature limit. For applications requiring operation below -50°C, SA58A or SA64A are recommended, both rated to -55°C.