P6KE13A-T Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The P6KE13A-T is a unidirectional Zener-type transient voltage suppressor diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection applications. This component features an 11.1V reverse standoff voltage with an 18.2V maximum clamping voltage at peak pulse current of 33A, housed in a DO-15 through-hole package. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	11.1V
Voltage - Breakdown (Min)	12.4V
Voltage - Clamping (Max) @ Ipp	18.2V
Current - Peak Pulse (10/1000µs)	33A
Power - Peak Pulse	600W
Type	Zener
Unidirectional Channels	1
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature	-55°C ~ 175°C (TJ)

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE13A-T is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff (Typ): 11.1V
Voltage - Breakdown (Min): 12.4V
Voltage - Clamping (Max) @ Ipp: 18.2V
Current - Peak Pulse (10/1000µs): 33A (±tolerance acceptable)
Power - Peak Pulse: 600W
Type: Zener, Unidirectional
Mounting Type: Through Hole
Package / Case: DO-15 or DO-204AC equivalent

Substitute parts are categorized into two groups:

Group 1: Direct Electrical & Mechanical Equivalents - Parts meeting all critical parameters with identical or compatible packaging (DO-15/DO-204AC). These parts are interchangeable without circuit modification.

Group 2: Higher-Performance Alternatives - Parts with identical voltage specifications but increased current handling or power dissipation capability. These provide enhanced protection margins and are suitable for applications requiring greater transient energy absorption.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ)	Vbr (Min)	Vc (Max)	Ipp (A)	Ppk (W)	Package	Temp Range
P6KE13A-T	Diodes Incorporated	Obsolete	11.1V	12.4V	18.2V	33A	600W	DO-15	-55°C ~ 175°C
P6KE13A-AP	Micro Commercial Co	Active	11.1V	12.4V	18.2V	33A	600W	DO-15	-55°C ~ 175°C
P6KE13A-BP	Micro Commercial Co	Active	11.1V	12.4V	18.2V	33A	600W	DO-15	-55°C ~ 175°C
P6KE13A-E3/54	Vishay General Semiconductor	Active	11.1V	12.4V	18.2V	33A	600W	DO-204AC	-55°C ~ 175°C
P6KE13AHE3/54	Vishay General Semiconductor	Active	11.1V	12.4V	18.2V	33A	600W	DO-204AC	-55°C ~ 175°C
P6KE13A	Diotec Semiconductor	Active	11.1V	12.4V	18.2V	34A	600W	DO-15	-50°C ~ 175°C
1N6274A-E3/54	Vishay General Semiconductor	Active	11.1V	12.4V	18.2V	82.4A	1500W	1.5KE	-55°C ~ 175°C
5KP11A-TP	Micro Commercial Co	Active	11V	12.2V	18.2V	274A	5000W	R-6	-55°C ~ 175°C
P4KE11A-TP	Micro Commercial Co	Active	9.4V	10.5V	15.6V	26.3A	400W	DO-41	-55°C ~ 175°C
P6KE12A	Fairchild Semiconductor	Active	10.2V	11.4V	16.7V	37A	600W	DO-15	-50°C ~ 175°C

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

P6KE13A-AP, P6KE13A-BP, P6KE13A-E3/54, P6KE13AHE3/54, and P6KE13A from Diotec are functionally equivalent to the P6KE13A-T. All maintain identical voltage specifications (11.1V standoff, 12.4V breakdown, 18.2V clamping) and 33A peak pulse current within 600W power dissipation. These parts are classified as active products, ensuring long-term supply availability. Selection among these equivalents should be based on packaging preference (DO-15 versus DO-204AC), manufacturer qualification requirements, and inventory availability.

Higher-Performance Alternatives:

The 1N6274A-E3/54 (Vishay TransZorb®, 1.5KE package) and 5KP11A-TP (Micro Commercial Co, R-6 package) provide identical voltage clamping characteristics but with significantly increased current handling (82.4A and 274A respectively) and power dissipation (1500W and 5000W). These are suitable for applications requiring enhanced transient protection margins or where circuit topology permits larger package footprints.

Non-Equivalent Alternatives:

P4KE11A-TP and P6KE12A do not meet the electrical equivalence criteria. P4KE11A-TP exhibits lower voltage specifications (9.4V standoff, 10.5V breakdown, 15.6V clamping) and reduced current capacity (26.3A). P6KE12A operates at a lower standoff voltage (10.2V) with different breakdown and clamping voltages. These parts are not suitable as direct replacements.

Frequently Asked Questions (FAQ)

Q: Can P6KE13A-AP or P6KE13A-BP be used as direct replacements for the obsolete P6KE13A-T?

A: Yes. Both Micro Commercial Co variants maintain identical electrical specifications: 11.1V reverse standoff, 12.4V breakdown, 18.2V clamping voltage, and 33A peak pulse current. Both are active products with DO-15 packaging compatible with the original design. Substitution requires no circuit modifications.

Q: What is the difference between P6KE13A-E3/54 and P6KE13AHE3/54?

A: Both are Vishay TransZorb® devices with identical electrical parameters. The primary difference is packaging format: P6KE13A-E3/54 is supplied in Cut Tape (CT), while P6KE13AHE3/54 is supplied in Tape & Reel (TR). The P6KE13AHE3/54 includes AEC-Q101 automotive qualification. Selection depends on procurement volume and application requirements.

Q: Why are 1N6274A-E3/54 and 5KP11A-TP listed as alternatives if they have different current ratings?

A: These parts maintain the same voltage clamping characteristics (18.2V) as the P6KE13A-T but provide higher current handling and power dissipation. They are suitable for applications where the original 33A/600W specification is insufficient or where circuit topology permits larger package sizes. They are not direct pin-for-pin replacements due to different package formats (1.5KE and R-6 respectively).

Q: Is P6KE12A a suitable substitute?

A: No. P6KE12A operates at a lower reverse standoff voltage (10.2V) with different breakdown (11.4V) and clamping (16.7V) specifications. These voltage differences make it unsuitable for circuits designed for the P6KE13A-T's 11.1V standoff characteristic.

Q: What compliance certifications should I verify when selecting a substitute?

A: Verify RoHS3 compliance status and REACH regulatory status based on your application requirements. P6KE13A-E3/54 and P6KE13AHE3/54 are RoHS3 compliant. The P6KE13AHE3/54 includes AEC-Q101 automotive qualification if automotive-grade components are required. Confirm ECCN and HTSUS classifications for export compliance if applicable.

Q: Can I use the Diotec P6KE13A as a substitute?

A: Yes. The Diotec P6KE13A is electrically equivalent with a peak pulse current of 34A (compared to 33A), which is within acceptable tolerance. It maintains the same voltage specifications and 600W power rating. Operating temperature range is -50°C to 175°C (versus -55°C to 175°C for the original), which is acceptable for most applications. This part is active and widely available.

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