P6KE170CA-T Equivalent & Substitute Parts

Part Overview

The P6KE170CA-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 145V reverse standoff voltage with 234V maximum clamping voltage and 2.6A peak pulse current capability in a DO-15 axial package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	145V
Voltage - Breakdown (Min)	162V
Voltage - Clamping (Max) @ Ipp	234V
Current - Peak Pulse (10/1000µs)	2.6A
Power - Peak Pulse	600W
Type	Zener
Bidirectional 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 P6KE170CA-T is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff: 145V (±tolerance)
Voltage - Clamping (Max) @ Ipp: 234V (±tolerance)
Current - Peak Pulse: 2.6A (±tolerance)
Power - Peak Pulse: 600W
Type: Zener diode, bidirectional (1 channel)
Mounting: Through Hole
Package compatibility: DO-15 or DO-204AC (DO-15)

All identified substitute parts maintain these electrical specifications within acceptable engineering tolerances. Packaging variants (Bulk, Tape & Reel) and manufacturer differences do not affect electrical performance or circuit compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	VWM (Typ)	VBR (Min)	VC (Max)	Ipp	PPP	Product Status	Package	Temp Range
P6KE170CA-T	Diodes Incorporated	145V	162V	234V	2.6A	600W	Obsolete	DO-15	-55°C ~ 175°C
P6KE170CA	Taiwan Semiconductor Corporation	145V	162V	234V	2.6A	600W	Active	DO-15	Not specified
P6KE170CA-AP	Micro Commercial Co	145V	161V	234V	2.6A	600W	Active	DO-15	-55°C ~ 175°C
P6KE170CA-B	Littelfuse Inc.	145V	162V	234V	2.6A	600W	Active	DO-204AC (DO-15)	-55°C ~ 175°C
P6KE170CA-BP	Micro Commercial Co	145V	161V	234V	2.6A	600W	Active	DO-15	-55°C ~ 175°C
P6KE170CA-TP	Micro Commercial Co	145V	161V	234V	2.6A	600W	Active	DO-15	-55°C ~ 175°C
P6KE170CAE3/TR13	Microsemi Corporation	145V	161V	234V	2.6A	600W	Active	Axial	-65°C ~ 150°C

Engineering Selection Recommendations

Primary Recommendation: P6KE170CA-B (Littelfuse Inc.)

This substitute offers the closest alignment with the original P6KE170CA-T specification. Littelfuse maintains active product status with ROHS3 compliance and identical electrical parameters. The DO-204AC (DO-15) package designation confirms mechanical compatibility with existing through-hole PCB layouts.

Secondary Recommendations: P6KE170CA-AP, P6KE170CA-BP, P6KE170CA-TP (Micro Commercial Co)

These variants maintain all critical electrical specifications with active product status. Breakdown voltage tolerance (161V minimum vs. 162V) remains within acceptable engineering margins for TVS diode applications. Operating temperature range (-55°C ~ 175°C) matches the original specification.

Alternative Option: P6KE170CA (Taiwan Semiconductor Corporation)

This part provides electrical equivalence with active status and Tape & Reel packaging. Operating temperature range is not specified in available documentation.

Axial Package Alternative: P6KE170CAE3/TR13 (Microsemi Corporation)

For applications requiring axial lead configuration, this Microsemi part maintains electrical specifications. Operating temperature range (-65°C ~ 150°C) provides extended low-temperature performance but reduced maximum temperature capability compared to the original.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for P6KE170CA-T?

A: Yes. All listed substitutes maintain identical or equivalent electrical parameters: 145V reverse standoff, 234V clamping voltage, and 2.6A peak pulse current. Physical package compatibility (DO-15 or DO-204AC) ensures PCB mounting compatibility.

Q: What is the difference between DO-15 and DO-204AC packaging?

A: DO-15 and DO-204AC are equivalent designations for the same axial through-hole package. Both refer to a two-lead cylindrical component with identical mechanical dimensions and lead spacing.

Q: Does the breakdown voltage tolerance difference (161V vs. 162V minimum) affect circuit performance?

A: No. Both values fall within standard TVS diode manufacturing tolerances and do not affect circuit protection performance. The 145V reverse standoff voltage remains the primary design parameter.

Q: Are there compliance or certification differences between manufacturers?

A: All substitutes maintain ROHS3 compliance and EAR99 export classification. REACH status varies by manufacturer but does not affect electrical performance or circuit compatibility.

Q: Which substitute should I select for new designs?

A: P6KE170CA-B (Littelfuse) is recommended for new designs due to established active product status, full compliance documentation, and widespread availability. Littelfuse maintains consistent quality standards across the P6KE series.

Q: Can I mix different manufacturers in the same production run?

A: Yes. All substitutes meet identical electrical specifications and package requirements. Manufacturing source does not affect circuit performance when specifications are equivalent.

Q: What is the inventory status for these parts?

A: All substitute parts show adequate stock levels (649–1420 units available), ensuring procurement reliability for both prototype and production quantities.

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