P6KE6V8CA Equivalent & Substitute Parts

Part Overview

The P6KE6V8CA is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in through-hole applications. This component features a 5.8V reverse standoff voltage with a 10.5V maximum clamping voltage and 57A peak pulse current capability at 600W peak pulse power dissipation. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new designs.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	5.8V
Voltage - Breakdown (Min)	6.45V
Voltage - Clamping (Max) @ Ipp	10.5V
Current - Peak Pulse (10/1000µs)	57A
Power - Peak Pulse	600W
Type	Zener
Bidirectional Channels	1
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature	-55°C ~ 175°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE6V8CA is determined by strict equivalence across the following critical parameters: reverse standoff voltage (5.8V), breakdown voltage minimum (6.45V), clamping voltage maximum (10.5V), peak pulse current (57A nominal), peak pulse power (600W), package type (DO-15/DO-204AC through-hole), and operating temperature range (-55°C to 175°C). All identified substitutes maintain these electrical specifications within the allowed tolerances. Packaging variants (Cut Tape, Bulk, Tape & Reel) and manufacturer differences do not affect electrical interchangeability. One substitute exhibits a slightly higher peak pulse current specification (60A) and one exhibits a marginally higher peak pulse current (57.1A), both within acceptable engineering margins for this application category.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ)	Vbr (Min)	Vc (Max)	Ipp (A)	Ppk (W)	Package	Temp Range
P6KE6V8CA-T	Diodes Incorporated	Obsolete	5.8V	6.45V	10.5V	57A	600W	DO-15	-55°C ~ 175°C
P6KE6V8CA-B	Diodes Incorporated	Active	5.8V	6.45V	10.5V	57A	600W	DO-15	-55°C ~ 175°C
P6KE6.8CA	Taiwan Semiconductor Corporation	Active	5.8V	6.46V	10.5V	60A	600W	DO-204AC (DO-15)	-55°C ~ 175°C
P6KE6.8CA-AP	Micro Commercial Co	Active	5.8V	6.45V	10.5V	57A	600W	DO-15	-55°C ~ 175°C
P6KE6.8CA-BP	Micro Commercial Co	Active	5.8V	6.45V	10.5V	57A	600W	DO-15	-55°C ~ 175°C
P6KE6.8CA-E3/54	Vishay General Semiconductor - Diodes Division	Active	5.8V	6.45V	10.5V	57.1A	600W	DO-204AC (DO-15)	-55°C ~ 175°C
P6KE6.8CA-TP	Micro Commercial Co	Active	5.8V	6.45V	10.5V	57A	600W	DO-15	-55°C ~ 175°C
P6KE6.8CAE3/TR13	Microsemi Corporation	Active	5.8V	6.45V	10.5V	57A	600W	Axial	-65°C ~ 150°C
P6KE6.8CAHE3/54	Vishay General Semiconductor - Diodes Division	Active	5.8V	6.45V	10.5V	57.1A	600W	DO-204AC (DO-15)	-55°C ~ 175°C
P6KE6V8CA	Taiwan Semiconductor Corporation	Active	5.8V	6.45V	10.5V	57.1A	600W	DO-15	-55°C ~ 175°C

Engineering Selection Recommendations

For direct replacement of the obsolete P6KE6V8CA-T, the P6KE6V8CA-B from Diodes Incorporated is the primary equivalent, maintaining identical specifications and active product status with ROHS3 compliance and REACH unaffected classification.

The P6KE6V8CA from Taiwan Semiconductor Corporation provides an active alternative with matching electrical parameters and ROHS3 compliance. This part is available in higher inventory quantities (4106 pcs) and offers the same DO-15 package configuration.

The Vishay TransZorb® series parts P6KE6.8CA-E3/54 and P6KE6.8CAHE3/54 are qualified alternatives with AEC-Q101 automotive qualification (CAHE3/54 variant), ROHS3 compliance, and peak pulse current specifications of 57.1A. The CAHE3/54 variant includes automotive-grade certification suitable for automotive applications.

The Micro Commercial Co variants P6KE6.8CA-AP, P6KE6.8CA-BP, and P6KE6.8CA-TP maintain exact electrical equivalence with 57A peak pulse current and ROHS3 compliance. These parts are available in bulk and cut tape packaging options.

The Taiwan Semiconductor Corporation P6KE6.8CA variant offers 60A peak pulse current capability, providing additional margin for transient suppression while maintaining all other electrical parameters and ROHS3 compliance.

The Microsemi Corporation P6KE6.8CAE3/TR13 provides equivalent electrical performance in axial package format with ROHS3 compliance. Operating temperature range is -65°C to 150°C, which is narrower than the standard -55°C to 175°C specification.

Frequently Asked Questions (FAQ)

Q: Can P6KE6.8CA (60A Ipp) be used as a direct substitute for P6KE6V8CA-T (57A Ipp)?

A: Yes. The higher peak pulse current specification (60A versus 57A) represents increased capability and does not compromise compatibility. All other electrical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, and power dissipation—are identical. The component remains electrically interchangeable.

Q: What is the difference between DO-15 and DO-204AC packaging?

A: DO-15 and DO-204AC are equivalent designations for the same through-hole axial package. Both refer to a two-lead axial component with identical mechanical and electrical characteristics. Parts specified as either DO-15 or DO-204AC (DO-15) are mechanically and electrically interchangeable.

Q: Are the Micro Commercial Co variants (P6KE6.8CA-AP, -BP, -TP) suitable replacements?

A: Yes. These parts maintain identical electrical specifications to the original P6KE6V8CA-T. The suffix designations (-AP, -BP, -TP) indicate packaging format (Bulk, Bulk, Cut Tape respectively) and do not affect electrical performance. All three variants are ROHS3 compliant and suitable for direct substitution.

Q: Why does the Microsemi P6KE6.8CAE3/TR13 have a different operating temperature range?

A: The Microsemi variant specifies -65°C to 150°C (TJ) versus the standard -55°C to 175°C. This narrower range does not affect substitution in applications operating within -55°C to 150°C. For applications requiring operation above 150°C or below -65°C, alternative parts with the full -55°C to 175°C range are required.

Q: What does ROHS3 compliance indicate?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, hexavalent chromium, and specified brominated flame retardants. All identified substitutes carry ROHS3 compliance, ensuring regulatory equivalence.

Q: Are there differences in reliability between manufacturers?

A: All identified substitutes meet identical electrical specifications and ROHS3 compliance. The Vishay TransZorb® variants with AEC-Q101 automotive qualification provide additional qualification documentation for automotive applications. Selection should be based on application requirements, supply chain availability, and any specific manufacturer qualifications mandated by system design standards.

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