P6KE13CA-T Equivalent & Substitute Parts

Part Overview

The P6KE13CA-T is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in through-hole applications. This component features an 11.1V reverse standoff voltage with an 18.2V maximum clamping voltage and 33A peak pulse current capability in a DO-15 package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	P6KE13CA-T
Manufacturer	Diodes Incorporated
Category	Transient Voltage Suppressors (TVS)
Type	Zener
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
Operating Temperature Range	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the P6KE13CA-T is determined by strict electrical and mechanical compatibility across the following critical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 11.1V
Voltage - Breakdown (Min): 12.4V
Voltage - Clamping (Max) @ Ipp: 18.2V
Current - Peak Pulse (10/1000µs): 33A minimum
Power - Peak Pulse: 600W minimum
Mounting Type: Through Hole
Package / Case: DO-15 or DO-204AC compatible
Operating Temperature: -55°C ~ 175°C or higher

Grouping Logic:

Group 1: Direct Electrical Equivalents (Same Package Family) Parts P6KE13CA-AP, P6KE13CA-BP, P6KE13CA-E3/54, and P6KE13CAHE3/54 maintain identical electrical specifications (11.1V standoff, 18.2V clamp, 33A peak pulse) with through-hole DO-15 or DO-204AC packaging. These parts are functionally interchangeable with the obsolete P6KE13CA-T.

Group 2: Higher Power Rated Alternatives (Different Package) Parts 1.5KE13CA-B, 1.5KE13CA-G, and 1.5KE13CA-HF share identical voltage specifications (11.1V standoff, 18.2V clamp) but feature higher peak pulse current ratings (82.42A to 84.6A) and increased power dissipation (1500W) in the larger DO-201 package. These are suitable for applications requiring greater transient energy absorption.

Group 3: Lower Voltage Alternatives Parts 1.5KE11CA-G and 1.5KE11CA-TP feature reduced voltage ratings (9.4V standoff, 15.6V clamp) with higher current capability (96.15A to 97.4A) and 1500W power rating in DO-201 packaging. These are applicable only when lower voltage protection thresholds are acceptable.

Group 4: Adjacent Voltage Alternative Part 1.5KE12CA-TP provides an intermediate voltage option (10.2V standoff, 16.7V clamp) with 91A peak pulse current and 1500W power rating in DO-201 packaging.

Parameter Comparison

Part Number	Manufacturer	Voltage Standoff (Typ)	Voltage Breakdown (Min)	Voltage Clamp (Max)	Peak Pulse Current	Power Rating	Package	Status
P6KE13CA-T	Diodes Incorporated	11.1V	12.4V	18.2V	33A	600W	DO-15	Obsolete
P6KE13CA-AP	Micro Commercial Co	11.1V	12.4V	18.2V	33A	600W	DO-15	Active
P6KE13CA-BP	Micro Commercial Co	11.1V	12.4V	18.2V	33A	600W	DO-15	Active
P6KE13CA-E3/54	Vishay General Semiconductor	11.1V	12.4V	18.2V	33A	600W	DO-204AC	Active
P6KE13CAHE3/54	Vishay General Semiconductor	11.1V	12.4V	18.2V	33A	600W	DO-204AC	Active
1.5KE13CA-B	Littelfuse Inc.	11.1V	12.4V	18.2V	84.6A	1500W	DO-201	Active
1.5KE13CA-G	Comchip Technology	11.1V	12.35V	18.2V	82.42A	1500W	DO-201	Active
1.5KE13CA-HF	Comchip Technology	11.1V	12.35V	18.2V	82.42A	1500W	DO-201	Active
1.5KE11CA-G	Comchip Technology	9.4V	10.45V	15.6V	96.15A	1500W	DO-201	Active
1.5KE11CA-TP	Micro Commercial Co	9.4V	10.5V	15.6V	97.4A	1500W	DO-201AE	Active
1.5KE12CA-TP	Micro Commercial Co	10.2V	11.4V	16.7V	91A	1500W	DO-201AE	Active

Engineering Selection Recommendations

For Direct Replacement (Same Electrical and Mechanical Specifications):

Select P6KE13CA-E3/54 or P6KE13CAHE3/54 from Vishay General Semiconductor for applications requiring identical performance to the obsolete P6KE13CA-T. Both parts maintain 11.1V standoff voltage, 18.2V clamping voltage, and 33A peak pulse current in compatible through-hole packaging. P6KE13CA-E3/54 is available in Cut Tape packaging with 2697 units in stock, while P6KE13CAHE3/54 is supplied in Tape & Reel format with AEC-Q101 automotive qualification and 708 units available. Both are ROHS3 compliant and REACH unaffected.

Alternatively, P6KE13CA-AP or P6KE13CA-BP from Micro Commercial Co provide identical electrical specifications with active product status and higher inventory availability (899 and 874 units respectively). These parts are suitable for telecom applications and carry automotive grade qualification.

For Enhanced Transient Protection (Higher Power Dissipation):

When circuit design permits package substitution from DO-15 to DO-201, select 1.5KE13CA-B (Littelfuse), 1.5KE13CA-G (Comchip), or 1.5KE13CA-HF (Comchip). These parts maintain identical voltage specifications (11.1V standoff, 18.2V clamp) while providing 82.42A to 84.6A peak pulse current and 1500W power dissipation. This configuration is appropriate for applications experiencing higher transient energy levels. All three parts are ROHS3 compliant and carry active product status.

For Lower Voltage Protection Requirements:

Parts 1.5KE11CA-G and 1.5KE11CA-TP are applicable only when circuit protection thresholds of 9.4V standoff and 15.6V clamping are acceptable. These parts offer 96.15A to 97.4A peak pulse current and 1500W power rating in DO-201 packaging.

Part 1.5KE12CA-TP provides an intermediate voltage option (10.2V standoff, 16.7V clamp) with 91A peak pulse current and 1500W power rating, suitable for applications requiring voltage protection between the 1.5KE11 and 1.5KE13 series.

Frequently Asked Questions (FAQ)

Q: Can P6KE13CA-AP or P6KE13CA-BP be used as direct replacements for the obsolete P6KE13CA-T?

A: Yes. Both parts maintain identical electrical specifications: 11.1V reverse standoff voltage, 12.4V minimum breakdown voltage, 18.2V maximum clamping voltage, and 33A peak pulse current. All three parts are rated for -55°C to 175°C operating temperature and feature through-hole DO-15 packaging. The primary difference is manufacturer and product status (P6KE13CA-T is obsolete; P6KE13CA-AP and P6KE13CA-BP are active).

Q: What is the difference between P6KE13CA-E3/54 and P6KE13CAHE3/54?

A: Both parts are manufactured by Vishay General Semiconductor and share identical electrical specifications (11.1V standoff, 18.2V clamp, 33A peak pulse). The primary differences are packaging format and qualification: P6KE13CA-E3/54 is supplied in Cut Tape (CT) format, while P6KE13CAHE3/54 is supplied in Tape & Reel (TR) format with AEC-Q101 automotive qualification. Both are ROHS3 compliant and REACH unaffected.

Q: Can 1.5KE13CA series parts replace P6KE13CA-T in existing designs?

A: Electrical substitution is possible because 1.5KE13CA parts maintain identical voltage specifications (11.1V standoff, 18.2V clamp). However, mechanical substitution requires PCB redesign: 1.5KE13CA parts use the larger DO-201 package instead of DO-15. The 1.5KE13CA series provides higher peak pulse current (82.42A to 84.6A) and power dissipation (1500W), making them suitable for applications experiencing greater transient energy. Verify PCB layout compatibility before implementation.

Q: What are the key parameters that determine TVS diode substitutability?

A: Substitution is determined by: (1) Reverse standoff voltage (must match or exceed circuit requirements), (2) Breakdown voltage (minimum threshold), (3) Clamping voltage (maximum protection level), (4) Peak pulse current rating (transient energy absorption capability), (5) Power dissipation rating, (6) Operating temperature range, and (7) Package type and mounting configuration. All substitute parts must meet or exceed the original part's specifications in these categories.

Q: Why are 1.5KE11CA and 1.5KE12CA parts listed as alternatives?

A: These parts are listed for reference only and are not direct substitutes. The 1.5KE11CA series features lower voltage ratings (9.4V standoff, 15.6V clamp) suitable only for applications requiring reduced protection thresholds. The 1.5KE12CA series provides an intermediate voltage option (10.2V standoff, 16.7V clamp). Selection of these parts requires circuit redesign and voltage threshold verification.

Q: Are all substitute parts ROHS3 compliant?

A: P6KE13CA-E3/54, P6KE13CAHE3/54, 1.5KE13CA-B, 1.5KE13CA-G, and 1.5KE13CA-HF are ROHS3 compliant. P6KE13CA-AP and P6KE13CA-BP do not specify RoHS status in available documentation. 1.5KE11CA-G, 1.5KE11CA-TP, and 1.5KE12CA-TP are ROHS3 compliant. Verify compliance requirements for your specific application before final part selection.

Q: What inventory levels are available for active substitute parts?

A: P6KE13CA-E3/54 (Vishay) has 2697 units in stock. P6KE13CA-AP (Micro Commercial Co) has 899 units. P6KE13CA-BP (Micro Commercial Co) has 874 units. P6KE13CAHE3/54 (Vishay) has 708 units. 1.5KE13CA-B (Littelfuse) has 915 units. 1.5KE13CA-G (Comchip) has 993 units. 1.5KE13CA-HF (Comchip) has 917 units. Inventory levels are subject to change; verify current availability with your supplier.

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