P6KE10CA-T Equivalent & Substitute Parts

Part Overview

The P6KE10CA-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 8.55V reverse standoff voltage, 14.5V maximum clamping voltage, and 41A peak pulse current capability in a DO-15 axial package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	8.55	V
Voltage - Breakdown (Min)	9.5	V
Voltage - Clamping (Max) @ Ipp	14.5	V
Current - Peak Pulse (10/1000µs)	41	A
Power - Peak Pulse	600	W
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE10CA-T is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 8.5V to 8.6V
Voltage - Clamping (Max) @ Ipp: 14.4V to 14.5V
Voltage - Breakdown (Min): 9.44V to 9.5V
Current - Peak Pulse (10/1000µs): minimum 29A
Power - Peak Pulse: minimum 400W
Mounting Type: Through Hole
Package / Case: DO-15 or DO-41 axial configurations
Type: Zener diode, single bidirectional channel

Parts are grouped into two categories: direct equivalents (matching all primary electrical parameters and package specifications) and manufacturer-recommended substitutes (meeting voltage and current requirements with acceptable variations in peak power or package form factor).

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Product Status
P6KE10CA-T	Diodes Incorporated	8.55	14.5	41	600	DO-15	Obsolete
P6KE10CA	Fairchild Semiconductor	8.5	14.5	43	600	DO-15	Active
P6KE10CA-AP	Micro Commercial Co	8.55	14.5	41	600	DO-15	Active
P6KE10CA-BP	Micro Commercial Co	8.55	14.5	41	600	DO-15	Active
P6KE10CAE3/TR13	Microsemi Corporation	8.55	14.5	41	600	Axial	Active
P4KE10CA	Taiwan Semiconductor Corporation	8.55	14.5	29	400	DO-41	Active
P5KE8.5CA-AP	Micro Commercial Co	8.5	14.4	34.7	500	DO-15	Active
P5KE8.5CA-BP	Micro Commercial Co	8.5	14.4	34.7	500	DO-15	Active
P5KE8.5CA-TP	Micro Commercial Co	8.5	14.4	34.7	500	DO-15	Active
P6KE10CA-B	Littelfuse Inc.	8.55	14.5	42.1	600	DO-15	Active
P6KE10CA-G	Comchip Technology	8.6	14.5	41.38	600	DO-15	Active

Engineering Selection Recommendations

Direct Equivalents (Preferred for Replacement)

P6KE10CA-AP, P6KE10CA-BP, P6KE10CA-B, and P6KE10CA-G are direct functional equivalents with active product status. These parts maintain identical or near-identical electrical specifications (8.55V to 8.6V reverse standoff, 14.5V clamping, 41A to 42.1A peak pulse current) and DO-15 package configuration. P6KE10CA-B (Littelfuse) and P6KE10CA-G (Comchip) are ROHS3 compliant. All four parts are suitable for direct board-level substitution without circuit redesign.

Secondary Equivalents (Package or Manufacturer Variation)

P6KE10CA (Fairchild Semiconductor) offers identical electrical performance with slightly higher peak pulse current (43A) and maintains DO-15 packaging. P6KE10CAE3/TR13 (Microsemi) provides equivalent electrical specifications in an axial package format, suitable for applications where axial lead configuration is acceptable.

Reduced-Performance Alternatives (Lower Current Rating)

P5KE8.5CA-AP, P5KE8.5CA-BP, and P5KE8.5CA-TP (Micro Commercial Co) operate at 8.5V reverse standoff with 14.4V clamping and 34.7A peak pulse current, representing a 15% reduction in current handling capacity and 17% reduction in peak power (500W vs. 600W). These are suitable only where circuit design permits lower transient current absorption.

P4KE10CA (Taiwan Semiconductor Corporation) maintains 8.55V reverse standoff and 14.5V clamping but delivers only 29A peak pulse current and 400W peak power in a DO-41 package. This part is appropriate for lower-energy transient environments or where DO-41 axial leads are preferred.

Frequently Asked Questions (FAQ)

Q: Can P6KE10CA-AP or P6KE10CA-BP be used as direct replacements for the obsolete P6KE10CA-T?

A: Yes. Both parts are manufactured by Micro Commercial Co and maintain identical electrical specifications: 8.55V reverse standoff, 14.5V clamping voltage, 41A peak pulse current, and 600W peak power. Both are packaged in DO-15 and rated for -55°C to 175°C operating temperature. No circuit modifications are required.

Q: What is the difference between P6KE10CA-B and P6KE10CA-G?

A: P6KE10CA-B (Littelfuse) and P6KE10CA-G (Comchip) differ in reverse standoff voltage specification (8.55V vs. 8.6V) and operating temperature range (-55°C to 175°C vs. -55°C to 150°C). Peak pulse current specifications are 42.1A and 41.38A respectively. Both are functionally equivalent for general-purpose applications and maintain 14.5V clamping voltage.

Q: Can the P5KE8.5CA series be used instead of P6KE10CA-T?

A: The P5KE8.5CA series (AP, BP, TP variants) can be used only if circuit design accommodates reduced transient current handling. These parts deliver 34.7A peak pulse current versus 41A for the original part, and 500W peak power versus 600W. Reverse standoff voltage is 8.5V (0.05V lower) and clamping voltage is 14.4V (0.1V lower). Substitution requires verification that the lower current rating does not compromise overvoltage protection effectiveness.

Q: What is the difference between DO-15 and DO-41 packages?

A: Both are through-hole axial lead packages for TVS diodes. DO-15 (DO-204AC) and DO-41 (DO-204AL) differ in physical dimensions and lead spacing. P4KE10CA uses DO-41 packaging. Package selection depends on PCB layout constraints and lead spacing requirements. Electrical performance is independent of package type.

Q: Are all substitute parts RoHS3 compliant?

A: RoHS3 compliance is confirmed for P6KE10CA-T, P6KE10CAE3/TR13, P6KE10CA-B, and P6KE10CA-G. Compliance status for P6KE10CA (Fairchild), P6KE10CA-AP, P6KE10CA-BP, P4KE10CA, and P5KE8.5CA variants is not specified in the provided data. Verify RoHS3 compliance with the manufacturer if regulatory requirements mandate it.

Q: Which substitute offers the best inventory availability?

A: P6KE10CA-B (Littelfuse) has the highest reported inventory at 2,109 pieces. P5KE8.5CA-TP (Micro Commercial Co) has 942 pieces available. P6KE10CA-G (Comchip) has 977 pieces. All other direct equivalents maintain inventory levels between 800 and 900 pieces.

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