SA64CAHE3/54 Equivalent & Substitute Parts

Part Overview

The SA64CAHE3/54 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates in the 64V reverse standoff voltage class and provides transient protection with a 103V maximum clamping voltage. The part is actively produced, AEC-Q101 qualified for automotive applications, and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the DO-204AC (DO-15) axial package format.

Substiute Parts

SA64CAHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 821SA64CAHE3/54 Datasheet

Current PartRFQ

P6KE75CA

Diotec SemiconductorIn Stock: 100249P6KE75CA Datasheet

MFR RecommendedRFQ

SA64CA

Taiwan Semiconductor CorporationIn Stock: 5417SA64CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA64CAHE3/54 are qualified based on the following electrical and mechanical criteria:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 64V ±0.1V tolerance
• Voltage - Clamping (Max) @ Ipp: 103V (exact match required)
• Package / Case: DO-204AC (DO-15) axial through-hole format
• Bidirectional Channels: 1 channel configuration
• Mounting Type: Through Hole

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): ±1.2A tolerance
• Power - Peak Pulse: ±100W tolerance
• Operating Temperature Range: Minimum -50°C acceptable (main part: -55°C)
• Voltage - Breakdown (Min): ±0.2V tolerance

Parts meeting these criteria are electrically and mechanically interchangeable for the SA64CAHE3/54 application.

Parameter Comparison

Engineering Selection Recommendations

SA64CA (Taiwan Semiconductor Corporation): This part provides direct electrical equivalence to the SA64CAHE3/54 with identical reverse standoff voltage (64V), breakdown voltage (71.1V), clamping voltage (103V), and peak pulse current (5A). Both parts share ROHS3 compliance, identical operating temperature range (-55°C to 175°C), and automotive-grade qualification. The SA64CA is the closest functional equivalent and maintains all compliance certifications of the original part.

P6KE75CA (Diotec Semiconductor): This part meets the critical electrical parameters with matching clamping voltage (103V) and reverse standoff voltage (64.1V). The P6KE75CA provides higher peak pulse current (6.1A) and power dissipation (600W) compared to the main part, offering enhanced transient protection capability. The operating temperature range is -50°C to 175°C, which is acceptable for most applications but does not extend to the -55°C minimum of the original part. RoHS compliance status is not applicable for this manufacturer offering.

Both substitute parts maintain the DO-204AC (DO-15) axial through-hole package format and single bidirectional channel configuration required for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can P6KE75CA be used as a direct replacement for SA64CAHE3/54?

A: P6KE75CA is electrically compatible based on matching clamping voltage (103V) and reverse standoff voltage (64.1V). The higher peak pulse current (6.1A vs 4.9A) and power rating (600W vs 500W) provide enhanced protection margins. The operating temperature range difference (-50°C minimum vs -55°C minimum) must be evaluated against application requirements. Both parts use identical DO-204AC (DO-15) axial packaging for direct board substitution.

Q: What is the difference between SA64CA and SA64CAHE3/54?

A: SA64CA and SA64CAHE3/54 are electrically identical across all critical parameters: 64V reverse standoff voltage, 71.1V breakdown voltage, 103V clamping voltage, and 4.9A peak pulse current. Both are ROHS3 compliant, share the same -55°C to 175°C operating temperature range, and use DO-204AC (DO-15) axial through-hole packaging. The primary difference is manufacturer: SA64CAHE3/54 is from Vishay General Semiconductor, while SA64CA is from Taiwan Semiconductor Corporation.

Q: Are all three parts suitable for automotive applications?

A: SA64CAHE3/54 carries AEC-Q101 automotive qualification. SA64CA is listed as automotive-grade. P6KE75CA product status is listed as active but specific automotive qualification details are not provided in the available parameters. Automotive application requirements should be confirmed with the respective manufacturers.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All three parts share identical DO-204AC (DO-15) axial through-hole package dimensions and single bidirectional channel configuration. No PCB layout modifications are required for substitution. Electrical performance differences (peak current and power ratings) do not affect physical compatibility.

Q: What is the significance of the clamping voltage parameter?

A: The clamping voltage (103V maximum @ Ipp) defines the maximum voltage the TVS diode allows across the protected circuit during a transient event. All three parts maintain this identical specification, ensuring equivalent transient suppression performance in the protected circuit.