P6KE12CA-T Equivalent & Substitute Parts

Part Overview

The P6KE12CA-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 a 10.2V reverse standoff voltage, 16.7V maximum clamping voltage, and 36A peak pulse current capability in a DO-15 package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit protection functionality.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	10.2	V
Voltage - Breakdown (Min)	11.4	V
Voltage - Clamping (Max) @ Ipp	16.7	V
Current - Peak Pulse (10/1000µs)	36	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 175	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution of the P6KE12CA-T is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff (Typ): 10.2V
Voltage - Breakdown (Min): 11.4V
Voltage - Clamping (Max) @ Ipp: 16.7V
Current - Peak Pulse (10/1000µs): 36A (±0.6A tolerance acceptable)
Power - Peak Pulse: 600W
Type: Zener, Bidirectional, Single Channel
Mounting Type: Through Hole
Operating Temperature: -55°C to 175°C minimum

All identified substitute parts maintain these electrical specifications within acceptable engineering tolerances. Package variants (DO-15, DO-204AC, Axial) are mechanically interchangeable in standard through-hole PCB layouts. Packaging format (Cut Tape, Bulk, Tape & Reel) does not affect electrical performance and is selected based on procurement and assembly requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ) V	Vbr (Min) V	Vc (Max) V	Ipp A	Ppk W	Tj Range °C	Package	RoHS
P6KE12CA-T	Diodes Incorporated	Obsolete	10.2	11.4	16.7	36	600	-55 to 175	DO-15	ROHS3
P6KE12CA-AP	Micro Commercial Co	Active	10.2	11.4	16.7	36	600	-55 to 175	DO-15	Not Affected
P6KE12CA-BP	Micro Commercial Co	Active	10.2	11.4	16.7	36	600	-55 to 175	DO-15	Not Affected
P6KE12CA-E3/54	Vishay General Semiconductor - Diodes Division	Active	10.2	11.4	16.7	35.9	600	-55 to 175	DO-204AC	ROHS3
P6KE12CA-TP	Micro Commercial Co	Active	10.2	11.4	16.7	36	600	-55 to 175	DO-15	ROHS3
P6KE12CAE3/TR13	Microsemi Corporation	Active	10.2	11.4	16.7	36	600	-65 to 150	Axial	ROHS3
P6KE12CAHE3/54	Vishay General Semiconductor - Diodes Division	Active	10.2	11.4	16.7	35.9	600	-55 to 175	DO-204AC	ROHS3
P6KE12CAHE3/73	Vishay General Semiconductor - Diodes Division	Active	10.2	11.4	16.7	35.9	600	-55 to 175	DO-204AC	ROHS3
P6KE12CA	Taiwan Semiconductor Corporation	Active	10.2	11.4	16.7	36	600	Not Specified	DO-15	ROHS3
P6KE12CA-B	Littelfuse Inc.	Active	10.2	11.4	16.7	36.5	600	-55 to 175	DO-204AC	ROHS3

Engineering Selection Recommendations

All substitute parts listed maintain electrical equivalence to the P6KE12CA-T across voltage suppression, current handling, and power dissipation specifications. Selection among active alternatives is based on the following criteria:

For Direct Replacement (DO-15 Package): P6KE12CA-TP (Micro Commercial Co) is the primary recommendation. This part is active, ROHS3 compliant, maintains full operating temperature range (-55°C to 175°C), and is available in Cut Tape packaging matching the original specification.

For DO-204AC Package Variants: P6KE12CA-E3/54 and P6KE12CAHE3/54 (Vishay TransZorb® series) provide equivalent electrical performance with ROHS3 compliance and full temperature range support. P6KE12CAHE3/54 includes AEC-Q101 automotive qualification.

For Automotive Applications: P6KE12CAHE3/54 and P6KE12CAHE3/73 (Vishay) are qualified to AEC-Q101 and suitable for automotive-grade circuit protection requirements.

For Bulk Procurement: P6KE12CA-AP and P6KE12CA-BP (Micro Commercial Co) offer active status with bulk packaging options, though operating temperature range matches the original specification.

All recommended substitutes are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can P6KE12CA-E3/54 replace P6KE12CA-T in existing designs? A: Yes. P6KE12CA-E3/54 maintains identical voltage suppression characteristics (10.2V standoff, 16.7V clamping) and peak pulse current (35.9A, within tolerance of 36A specification). The primary difference is package format (DO-204AC vs. DO-15), which are mechanically interchangeable in standard through-hole layouts. Both are ROHS3 compliant.

Q: What is the difference between DO-15 and DO-204AC packages? A: Both are through-hole axial packages with identical electrical performance. DO-15 and DO-204AC refer to the same physical form factor. Package selection is based on PCB layout compatibility and procurement availability. All listed substitutes in these packages are electrically equivalent.

Q: Are Vishay TransZorb® parts (P6KE12CAHE3/54, P6KE12CAHE3/73) suitable for general-purpose applications? A: Yes. These parts meet all electrical requirements for general-purpose transient voltage suppression. The TransZorb® designation indicates Vishay's product line branding. AEC-Q101 qualification on certain variants indicates automotive-grade reliability but does not restrict use in non-automotive applications.

Q: What is the significance of the temperature range difference in P6KE12CAE3/TR13? A: P6KE12CAE3/TR13 specifies -65°C to 150°C operating range, compared to -55°C to 175°C for most alternatives. This part is suitable for applications within its stated temperature limits. If the design requires the full -55°C to 175°C range, select alternatives with matching specifications.

Q: Does packaging format (Cut Tape, Bulk, Tape & Reel) affect electrical performance? A: No. Packaging format affects procurement, storage, and assembly logistics only. All parts with identical part number prefixes (P6KE12CA) deliver identical electrical performance regardless of packaging format.

Q: Is P6KE12CA (Taiwan Semiconductor Corporation) recommended as a substitute? A: P6KE12CA meets electrical specifications and is ROHS3 compliant. However, operating temperature range is not specified in available data. For applications requiring confirmed -55°C to 175°C operation, select alternatives with explicitly stated temperature ranges.

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