P4KE10C-B Equivalent & Substitute Parts

Part Overview

The P4KE10C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This bidirectional Zener diode operates in the DO-204AL (DO-41) axial package and provides 400W peak pulse power dissipation with a reverse standoff voltage of 8.55V. The part is currently classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

P4KE10C-B

Littelfuse Inc.In Stock: 740P4KE10C-B Datasheet

Current PartRFQ

P4KE10CA

Taiwan Semiconductor CorporationIn Stock: 936P4KE10CA Datasheet

DirectRFQ

P4KE10CA-B

Littelfuse Inc.In Stock: 1004P4KE10CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE10C-B are qualified based on the following critical parameters that define functional equivalence:

• Reverse Standoff Voltage (Typ): 8.55V
• Bidirectional Channels: 1
• Package / Case: DO-204AL (DO-41) Axial
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Power - Peak Pulse: 400W
• Series: P4KE

The identified substitute parts maintain these core electrical and mechanical specifications, ensuring direct functional replacement in circuit applications. Variations in clamping voltage and peak pulse current within the P4KE series remain within acceptable tolerance ranges for general-purpose transient voltage suppression.

Parameter Comparison

Engineering Selection Recommendations

Both P4KE10CA and P4KE10CA-B are qualified substitutes for the obsolete P4KE10C-B. Selection between alternatives is based on product status and packaging requirements:

P4KE10CA-B (Littelfuse Inc., Active Status, Bulk Packaging) is the primary recommendation for direct replacement. This part maintains Littelfuse manufacturing continuity, carries Active product status ensuring long-term availability, and is supplied in Bulk packaging suitable for standard procurement workflows. ROHS3 compliance and REACH Unaffected status confirm regulatory alignment.

P4KE10CA (Taiwan Semiconductor Corporation, Active Status, Tape & Reel Packaging) serves as an alternative when Tape & Reel packaging is required for automated assembly processes. This part also carries Active product status and maintains full regulatory compliance. The manufacturer change from Littelfuse to Taiwan Semiconductor Corporation represents the only sourcing difference.

Both substitutes maintain electrical equivalence within the P4KE series specifications and are suitable for general-purpose transient voltage suppression applications requiring the specified voltage and current ratings.

Frequently Asked Questions (FAQ)

Q: Can P4KE10CA and P4KE10CA-B be used interchangeably with P4KE10C-B?

A: Yes. Both parts maintain identical reverse standoff voltage (8.55V), operating temperature range (-55°C ~ 175°C), power rating (400W), and package configuration (DO-204AL axial). The primary difference is packaging format (Tape & Reel versus Bulk) and product status (both Active versus Obsolete).

Q: What is the significance of the clamping voltage difference between P4KE10C-B (15.23V) and the substitutes (14.5V)?

A: The clamping voltage represents the maximum voltage across the diode at peak pulse current. The P4KE10CA and P4KE10CA-B exhibit lower clamping voltage (14.5V versus 15.23V), providing improved transient suppression performance. This difference remains within acceptable tolerance ranges for the P4KE series and does not compromise circuit protection.

Q: Does the manufacturer change from Littelfuse to Taiwan Semiconductor Corporation affect part selection?

A: Both manufacturers supply parts meeting identical electrical specifications and regulatory requirements (ROHS3 Compliant, MSL 1). Selection between manufacturers depends on procurement policy and supply chain preferences. P4KE10CA-B maintains Littelfuse sourcing for organizations requiring single-manufacturer standardization.

Q: Are there packaging considerations for circuit board assembly?

A: Yes. P4KE10CA-B is supplied in Bulk packaging, suitable for manual or conventional assembly processes. P4KE10CA is supplied in Tape & Reel packaging, optimized for automated pick-and-place assembly. Both maintain identical through-hole mounting requirements and DO-204AL package dimensions.

Q: What compliance certifications apply to these substitute parts?

A: All parts are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. P4KE10CA and P4KE10CA-B both carry REACH Unaffected status, confirming regulatory alignment for international applications.