P4KE220A-B Equivalent & Substitute Parts

Part Overview

The P4KE220A-B is an active Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This unidirectional zener diode operates in the 185V reverse standoff voltage class with a maximum clamping voltage of 328V and peak pulse current rating of 1.3A. The component is housed in a DO-204AL (DO-41) axial through-hole package and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Substitute parts are identified to address supply chain continuity, packaging format preferences, or inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

P4KE220A-B

Littelfuse Inc.In Stock: 872P4KE220A-B Datasheet

Current PartRFQ

P4KE220A

Taiwan Semiconductor CorporationIn Stock: 60162P4KE220A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE220A-B is determined by strict equivalence across the following critical parameters:

Voltage ratings must match exactly: Reverse standoff voltage of 185V, breakdown voltage minimum of 209V, and clamping voltage maximum of 328V at peak pulse current.

Current and power ratings must be identical: Peak pulse current of 1.3A at 10/1000µs pulse duration and peak pulse power of 400W.

Package and mounting specifications must be compatible: DO-204AL (DO-41) axial through-hole configuration.

Compliance and environmental ratings must be maintained: ROHS3 compliance, MSL 1 rating, and operating temperature range of -55°C to 175°C (TJ).

The P4KE220A series designation confirms compatibility within this voltage and current class. Packaging format (bulk versus tape & reel) does not affect electrical or mechanical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The P4KE220A manufactured by Taiwan Semiconductor Corporation is a direct electrical and mechanical equivalent to the P4KE220A-B. Both components share identical voltage ratings, current specifications, temperature operating range, and package configuration. Both maintain ROHS3 compliance and MSL 1 rating, confirming suitability for equivalent circuit protection applications.

Selection between the two parts should be based on packaging format requirements and supply chain considerations. The Littelfuse P4KE220A-B is supplied in bulk packaging, while the Taiwan Semiconductor P4KE220A is supplied in tape & reel format. Tape & reel packaging is standard for automated assembly processes, while bulk packaging is suitable for manual assembly or lower-volume applications. Both formats contain identical components with no electrical performance differentiation.

Frequently Asked Questions (FAQ)

Q: Can the P4KE220A from Taiwan Semiconductor replace the P4KE220A-B from Littelfuse in my circuit?

A: Yes. Both components are electrically and mechanically identical. They share the same voltage ratings (185V reverse standoff, 328V clamping), current specifications (1.3A peak pulse), power rating (400W), operating temperature range (-55°C to 175°C), and DO-204AL through-hole package configuration. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between bulk and tape & reel packaging?

A: Bulk packaging contains loose components suitable for manual assembly or small-quantity applications. Tape & reel packaging contains components wound on continuous tape in plastic reels, designed for automated pick-and-place assembly equipment. The electrical and mechanical specifications of the component itself are identical regardless of packaging format.

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

A: No. Both the Littelfuse P4KE220A-B and Taiwan Semiconductor P4KE220A maintain identical ROHS3 compliance status, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating. Both carry the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Can I use these parts interchangeably in my PCB design?

A: Yes. The identical DO-204AL (DO-41) axial through-hole package configuration ensures mechanical and electrical interchangeability. No circuit modifications, PCB layout changes, or design alterations are required when substituting between these two parts.

Q: What parameters must remain constant for a valid substitution?

A: Valid substitution requires matching voltage ratings (185V reverse standoff, 209V breakdown minimum, 328V clamping maximum), current specifications (1.3A peak pulse at 10/1000µs), power rating (400W), operating temperature range (-55°C to 175°C), and package type (DO-204AL through-hole). The P4KE220 series designation confirms compatibility within this specification class.