P6KE24CA-T Equivalent & Substitute Parts

Part Overview

The P6KE24CA-T is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in through-hole applications. This bidirectional Zener diode provides 33.2V clamping voltage with 18A peak pulse current capability in a DO-15 axial package. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	20.5V
Voltage - Breakdown (Min)	22.8V
Voltage - Clamping (Max) @ Ipp	33.2V
Current - Peak Pulse (10/1000µs)	18A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Type	Zener
Bidirectional Channels	1

Substitute Part Grouping Explanation

Substitute parts for the P6KE24CA-T are qualified based on the following electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 20.5V
Voltage - Breakdown (Min): 22.8V
Voltage - Clamping (Max) @ Ipp: 33.2V
Current - Peak Pulse (10/1000µs): 18A (±0.4A tolerance acceptable)
Power - Peak Pulse: 600W
Mounting Type: Through Hole
Package / Case: DO-15 or DO-204AC (axial configuration)
Type: Zener, Bidirectional, Single Channel

All listed substitutes maintain these core electrical specifications and physical compatibility with the original P6KE24CA-T design. Variations in peak pulse current within ±0.4A and operating temperature ranges do not affect functional equivalence for transient suppression applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vwm (Typ)	Vbr (Min)	Vc (Max)	Ipp (A)	Pkg	Temp Range	RoHS
P6KE24CA-T	Diodes Incorporated	Obsolete	20.5V	22.8V	33.2V	18A	DO-15	-55°C ~ 175°C	ROHS3
P6KE24CA-AP	Micro Commercial Co	Active	20.5V	22.8V	33.2V	18A	DO-15	-55°C ~ 175°C	N/A
P6KE24CA-BP	Micro Commercial Co	Active	20.5V	22.8V	33.2V	18A	DO-15	-55°C ~ 175°C	N/A
P6KE24CA-G	Comchip Technology	Active	20.5V	22.8V	33.2V	18.07A	DO-15	-55°C ~ 150°C	ROHS3
P6KE24CA-TP	Micro Commercial Co	Active	20.5V	22.8V	33.2V	18A	DO-15	-55°C ~ 175°C	ROHS3
P6KE24CAE3/TR13	Microsemi Corporation	Active	20.5V	22.8V	33.2V	18A	Axial	-65°C ~ 150°C	ROHS3
P6KE24CA	Fairchild Semiconductor	Active	20.5V	22.8V	33.2V	19A	DO-15	-50°C ~ 175°C	N/A
P6KE24CA-B	Littelfuse Inc.	Active	20.5V	22.8V	33.2V	18.4A	DO-15	-55°C ~ 175°C	ROHS3

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the P6KE24CA-T and maintain identical electrical performance within specified tolerances. Selection among active alternatives should be based on:

Product Availability & Lead Time: P6KE24CA-TP (Micro Commercial Co, 4225 pcs in stock) and P6KE24CA (Fairchild Semiconductor, 80200 pcs in stock) offer the highest inventory levels for immediate procurement.

Compliance & Certification: P6KE24CA-TP, P6KE24CA-G, and P6KE24CA-B all carry ROHS3 compliance certification, matching the original part's environmental standards. P6KE24CA-AP and P6KE24CA-BP are REACH Unaffected alternatives suitable for applications without ROHS3 requirements.

Operating Temperature Range: For applications requiring the full -55°C to 175°C range, select P6KE24CA-TP, P6KE24CA-AP, P6KE24CA-BP, or P6KE24CA. P6KE24CA-G and P6KE24CAE3/TR13 are limited to -55°C to 150°C and -65°C to 150°C respectively.

Package Configuration: P6KE24CAE3/TR13 uses an axial through-hole package (T-18) as an alternative to the standard DO-15 configuration. All other substitutes maintain DO-15 or DO-204AC compatibility.

Frequently Asked Questions (FAQ)

Q: Can P6KE24CA-TP directly replace P6KE24CA-T in existing designs?

A: Yes. P6KE24CA-TP maintains identical electrical specifications (20.5V standoff, 33.2V clamping, 18A peak pulse) and DO-15 package compatibility. Both support the full -55°C to 175°C operating range and carry ROHS3 certification.

Q: What is the difference between P6KE24CA-AP and P6KE24CA-BP?

A: Both are manufactured by Micro Commercial Co with identical electrical specifications and operating temperature range (-55°C to 175°C). The primary difference is packaging: P6KE24CA-AP is supplied in bulk, while P6KE24CA-BP is also bulk. Both are automotive-grade alternatives suitable for telecom applications.

Q: Is P6KE24CAE3/TR13 compatible with P6KE24CA-T?

A: P6KE24CAE3/TR13 is electrically equivalent but uses an axial through-hole package (T-18) instead of the DO-15 configuration. Physical board layout modifications may be required. Operating temperature is limited to -65°C to 150°C.

Q: Why does P6KE24CA show 19A peak pulse instead of 18A?

A: P6KE24CA (Fairchild Semiconductor) specifies 19A peak pulse current, which exceeds the 18A minimum requirement. This represents a higher current capability and remains functionally compatible for applications designed around the 18A specification.

Q: Which substitute offers the best long-term availability?

A: P6KE24CA (Fairchild Semiconductor) with 80200 pcs in stock and active product status provides the strongest availability profile. P6KE24CA-TP (4225 pcs) is the secondary recommendation for immediate procurement.

Q: Are all substitutes ROHS3 compliant?

A: P6KE24CA-TP, P6KE24CA-G, and P6KE24CA-B carry explicit ROHS3 certification. P6KE24CA-AP and P6KE24CA-BP are REACH Unaffected. P6KE24CA and P6KE24CAE3/TR13 do not specify ROHS status in available documentation.

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