P4KE7.5CA-B Equivalent & Substitute Parts

Part Overview

The P4KE7.5CA-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose voltage protection applications. This through-hole component operates across a wide temperature range (-55°C to 175°C) and provides bidirectional transient suppression with a 6.4V reverse standoff voltage and 11.3V maximum clamping voltage. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P4KE7.5CA-B

LittelfuseIn Stock: 866P4KE7.5CA-B Datasheet

Current PartRFQ

P4KE7.5CA

Taiwan Semiconductor CorporationIn Stock: 30325P4KE7.5CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE7.5CA-B are identified based on strict electrical and mechanical parameter matching within the P4KE series. The substitution criteria are:

• Identical reverse standoff voltage: 6.4V
• Identical breakdown voltage minimum: 7.13V
• Identical maximum clamping voltage: 11.3V
• Equivalent peak pulse current rating: 36.3A to 37A (within acceptable tolerance)
• Identical power dissipation: 400W
• Identical package type: DO-204AL (DO-41) through-hole axial configuration
• Matching operating temperature range: -55°C to 175°C
• Equivalent compliance certifications: ROHS3, REACH Unaffected

The P4KE7.5CA substitute from Taiwan Semiconductor Corporation meets all electrical specifications and mechanical requirements, with only packaging format differentiation (Tape & Reel versus Bulk).

Parameter Comparison

Engineering Selection Recommendations

Both the P4KE7.5CA-B and P4KE7.5CA are active-status components with identical electrical performance specifications and full regulatory compliance. Selection between these parts should be based on procurement requirements and assembly processes. The Littelfuse P4KE7.5CA-B is supplied in bulk packaging, suitable for manual assembly or small-volume applications. The Taiwan Semiconductor P4KE7.5CA is supplied in Tape & Reel format, optimized for automated pick-and-place assembly and high-volume production environments. Both parts carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across global markets.

Frequently Asked Questions (FAQ)

Q: Can P4KE7.5CA (Taiwan Semiconductor) be used as a direct replacement for P4KE7.5CA-B (Littelfuse)?

A: Yes. Both parts share identical electrical specifications including voltage ratings, clamping characteristics, and current handling capacity. The primary difference is packaging format: Bulk versus Tape & Reel. Electrical performance and thermal characteristics are equivalent.

Q: What is the difference between the peak pulse current ratings of 36.3A and 37A?

A: The 0.7A difference falls within normal manufacturing tolerance for TVS diodes in this class. Both ratings support the same 400W peak pulse power dissipation and are functionally equivalent for circuit protection applications.

Q: Are there any temperature or compliance differences between these parts?

A: No. Both parts operate across the identical temperature range (-55°C to 175°C) and carry matching compliance certifications: ROHS3 Compliant, REACH Unaffected, and unlimited moisture sensitivity rating (MSL 1).

Q: Which packaging format should I select?

A: Select Bulk packaging (P4KE7.5CA-B) for manual assembly, prototyping, or low-volume production. Select Tape & Reel packaging (P4KE7.5CA) for automated assembly lines and high-volume manufacturing where component feeding systems require reel-based formats.

Q: Do these parts require any circuit modifications when substituting?

A: No circuit modifications are required. Both parts are pin-compatible through-hole components with identical DO-204AL (DO-41) axial package geometry and electrical characteristics.