P4KE110C Equivalent & Substitute Parts

Part Overview

The P4KE110C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse, rated for 89.2V standoff voltage with 400W peak pulse power handling. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The P4KE110C series provides general-purpose transient protection in through-hole DO-204AL (DO-41) packaging with operating temperatures from -55°C to 175°C.

Substiute Parts

P4KE110C

LittelfuseIn Stock: 858P4KE110C Datasheet

Current PartRFQ

P4KE110CA

Taiwan Semiconductor CorporationIn Stock: 1026P4KE110CA Datasheet

DirectRFQ

P6KE110CA

Taiwan Semiconductor CorporationIn Stock: 3953P6KE110CA Datasheet

MFR RecommendedRFQ

P4KE110CA-AP

Micro Commercial CoIn Stock: 1085P4KE110CA-AP Datasheet

MFR RecommendedRFQ

P4KE110CA-BP

Micro Commercial CoIn Stock: 1063P4KE110CA-BP Datasheet

MFR RecommendedRFQ

P4KE110CA-G

Comchip TechnologyIn Stock: 1181P4KE110CA-G Datasheet

MFR RecommendedRFQ

P4KE110CA-TP

Micro Commercial CoIn Stock: 1135P4KE110CA-TP Datasheet

MFR RecommendedRFQ

P6KE110CA

Taiwan Semiconductor CorporationIn Stock: 3953P6KE110CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4KE110C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 94V (all substitutes match)
• Voltage - Clamping (Max) @ Ipp: 152V–159.6V range (acceptable variance for TVS diodes)
• Current - Peak Pulse (10/1000µs): 2.63A–4A (within functional tolerance)
• Power - Peak Pulse: 400W–600W (equal or higher rating acceptable)
• Type: Zener, Bidirectional, single channel (all substitutes match)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (all substitutes match)
• Package / Case: DO-204AL (DO-41) or DO-15 (compatible axial packages)
• Base Product Number: P4KE110 or P6KE110 series (same voltage class)

Compliance Criteria:

• RoHS3 Compliant (all substitutes verified)
• Product Status: Active (all substitutes are active, addressing obsolescence)

Substitutes are grouped into two categories: direct P4KE110CA variants (same package, current rating, and power handling) and upgraded P6KE110CA (higher current and power rating with different package).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (P4KE110CA Series): The P4KE110CA, P4KE110CA-G, P4KE110CA-TP, P4KE110CA-AP, and P4KE110CA-BP are functionally equivalent to the P4KE110C. All maintain the same voltage class (94V standoff), current rating (2.63A–2.7A), and power handling (400W). These parts are active products with ROHS3 compliance and are available in multiple packaging formats (Tape & Reel or Bulk). Selection among these variants depends on packaging requirements and supply chain availability. The P4KE110CA-TP and P4KE110CA variants offer Tape & Reel packaging suitable for automated assembly, while bulk options (P4KE110CA-AP, P4KE110CA-BP, P4KE110CA-G) are available for manual insertion or alternative handling processes.

Upgraded Substitute (P6KE110CA): The P6KE110CA provides enhanced performance with 4A peak pulse current and 600W power handling, representing a higher-rated alternative within the same voltage class. This part uses the DO-15 package instead of DO-41, requiring PCB layout modification. The P6KE110CA is suitable for applications requiring increased transient energy absorption or where design margin improvement is necessary. This part is active and ROHS3 compliant with the highest inventory availability (3850 pcs).

Compliance Verification: All substitute parts maintain ROHS3 compliance where specified. The P4KE110CA-AP and P4KE110CA-BP do not list RoHS status in provided data; verification with suppliers is recommended for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can P4KE110CA variants be used interchangeably with P4KE110C? A: Yes. The P4KE110CA, P4KE110CA-G, P4KE110CA-TP, P4KE110CA-AP, and P4KE110CA-BP maintain identical voltage standoff (94V), equivalent current ratings (2.63A–2.7A), and matching power dissipation (400W). All are through-hole, axial-lead devices in DO-41 packaging. Packaging format (Tape & Reel vs. Bulk) is the primary differentiator and depends on assembly process requirements.

Q: What is the difference between P4KE110CA and P6KE110CA? A: The P6KE110CA provides higher current handling (4A vs. 2.7A) and power dissipation (600W vs. 400W) at the same 94V voltage class. The P6KE110CA uses DO-15 package instead of DO-41, requiring PCB footprint changes. Use P6KE110CA when application transient energy exceeds 400W or when design margin improvement is required.

Q: Are package changes between DO-41 and DO-15 compatible with existing PCB layouts? A: No. DO-41 and DO-15 are different axial-lead packages with different lead spacing and body dimensions. PCB layout modification is required when substituting P4KE110CA (DO-41) with P6KE110CA (DO-15). Verify footprint compatibility before design implementation.

Q: What is the operating temperature range for all substitutes? A: Most substitutes operate from -55°C to 175°C (P4KE110CA, P4KE110CA-TP, P4KE110CA-AP, P4KE110CA-BP). The P4KE110CA-G operates from -55°C to 150°C. The P6KE110CA operating temperature is not specified in available data. Confirm temperature requirements for your application before selection.

Q: Are all substitutes ROHS3 compliant? A: ROHS3 compliance is confirmed for P4KE110CA, P4KE110CA-G, P4KE110CA-TP, and P6KE110CA. Compliance status for P4KE110CA-AP and P4KE110CA-BP is not specified in provided data. Contact suppliers directly for compliance verification on these variants.

Q: Which substitute offers the best supply availability? A: P6KE110CA has the highest inventory (3850 pcs). Among P4KE110CA variants, P4KE110CA-G offers 1124 pcs, P4KE110CA-TP offers 1111 pcs, and P4KE110CA offers 927 pcs. Inventory levels are subject to change; verify current availability with suppliers.