P6KE170A-T Equivalent & Substitute Parts

Part Overview

The P6KE170A-T is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in through-hole applications. This unidirectional Zener diode operates with a reverse standoff voltage of 145V and provides clamping at 234V with a peak pulse current rating of 2.6A. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

P6KE170A-T

Diodes IncorporatedIn Stock: 98270P6KE170A-T Datasheet

Current PartRFQ

1N6301A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 9581N6301A-E3/54 Datasheet

MFR RecommendedRFQ

P6KE170A

Fairchild SemiconductorIn Stock: 15563P6KE170A Datasheet

MFR RecommendedRFQ

P6KE170A-AP

Micro Commercial CoIn Stock: 1073P6KE170A-AP Datasheet

MFR RecommendedRFQ

P6KE170A-B

LittelfuseIn Stock: 925P6KE170A-B Datasheet

MFR RecommendedRFQ

P6KE170A-BP

Micro Commercial CoIn Stock: 987P6KE170A-BP Datasheet

MFR RecommendedRFQ

P6KE170A-TP

Micro Commercial CoIn Stock: 1073P6KE170A-TP Datasheet

MFR RecommendedRFQ

P6KE170AE3/TR13

Microsemi CorporationIn Stock: 1075P6KE170AE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P6KE170A-T is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Reverse Standoff Voltage: 145V (±tolerance)
• Breakdown Voltage (Min): 162V minimum
• Clamping Voltage (Max) @ Ipp: 234V maximum
• Peak Pulse Current: 2.6A minimum
• Peak Pulse Power: 600W minimum
• Mounting Type: Through Hole
• Package Type: DO-15 or DO-204AC compatible
• Unidirectional Channels: 1

Substitute parts are grouped into two categories based on electrical performance:

Category 1: Direct Electrical Equivalents (2.6A Peak Pulse Current) Parts maintaining identical electrical specifications with the same 2.6A peak pulse current rating and 600W power dissipation. These provide one-to-one functional replacement.

Category 2: Enhanced Performance Substitutes (Higher Current Rating) Parts exceeding the minimum electrical requirements with higher peak pulse current ratings (6.4A) and increased power dissipation (1500W). These provide superior protection margins while maintaining voltage compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents): P6KE170A (Fairchild Semiconductor), P6KE170A-B (Littelfuse), P6KE170A-AP (Micro Commercial Co), P6KE170A-BP (Micro Commercial Co), and P6KE170A-TP (Micro Commercial Co) are direct electrical equivalents with active product status. These parts maintain identical voltage and current specifications with the same 600W power rating. Selection among these should be based on packaging preference (bulk or cut tape) and availability.

Enhanced Performance Substitute: 1N6301A-E3/54 (Vishay General Semiconductor - TransZorb® series) exceeds minimum electrical requirements with 6.4A peak pulse current and 1500W power dissipation. This part is suitable for applications requiring additional protection margin. Note: This part uses DO-27 package instead of DO-15, requiring mechanical verification for board compatibility.

Compliance Considerations: P6KE170A-B (Littelfuse) and P6KE170A-TP (Micro Commercial Co) carry RoHS3 compliance certification. P6KE170A-B additionally provides automotive-grade qualification (AEC-Q101) through Littelfuse. For applications requiring automotive or enhanced reliability standards, P6KE170A-B is the recommended selection.

Temperature Range Consideration: P6KE170AE3/TR13 (Microsemi Corporation) operates within -65°C ~ 150°C, which is narrower than the original -55°C ~ 175°C specification. This part is suitable only for applications within its specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can I use P6KE170A-TP as a direct replacement for P6KE170A-T? A: Yes. P6KE170A-TP maintains identical electrical specifications (145V standoff, 234V clamping, 2.6A peak pulse current, 600W power) and through-hole DO-15 package compatibility. The primary difference is packaging format (cut tape versus bulk), which does not affect electrical performance.

Q: What is the difference between P6KE170A-AP, P6KE170A-BP, and P6KE170A-TP? A: All three parts are manufactured by Micro Commercial Co with identical electrical specifications. The suffix indicates packaging format: -AP (bulk), -BP (bulk), and -TP (cut tape). Electrical performance is equivalent; selection depends on procurement and assembly requirements.

Q: Can I use 1N6301A-E3/54 instead of P6KE170A-T? A: 1N6301A-E3/54 meets all voltage requirements (145V standoff, 234V clamping) and exceeds current requirements (6.4A versus 2.6A). However, it uses DO-27 package instead of DO-15. Mechanical board compatibility must be verified before substitution. This part is suitable for applications requiring enhanced protection margin.

Q: Why is P6KE170AE3/TR13 listed as a substitute if it has a narrower temperature range? A: P6KE170AE3/TR13 meets all electrical specifications and uses compatible through-hole axial packaging. However, its operating temperature range (-65°C ~ 150°C) is narrower than the original specification (-55°C ~ 175°C). This part is suitable only for applications operating within its specified temperature limits.

Q: Are all substitute parts RoHS compliant? A: RoHS3 compliance is explicitly stated for P6KE170A-B and P6KE170A-TP. Other parts show REACH Unaffected or REACH Affected status. Verify specific compliance requirements for your application before final selection.

Q: What is the difference between DO-15 and DO-204AC packages? A: DO-15 and DO-204AC are equivalent designations for the same axial through-hole package. Both terms refer to the same physical form factor and pin configuration. Parts listed with either designation are mechanically compatible.