P3203AARP Equivalent & Substitute Parts

Part Overview

The P3203AARP is a 270V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring three-element configuration in a 3-SIP through-hole package. The P3203AARP is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

P3203AARP

Littelfuse Inc.In Stock: 883P3203AARP Datasheet

Current PartRFQ

P3203AAL

Littelfuse Inc.In Stock: 90314P3203AAL Datasheet

DirectRFQ

P3203AALRP

Littelfuse Inc.In Stock: 1075P3203AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P3203AARP are determined by exact equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

• Voltage - Breakover: 350V
• Voltage - Off State: 270V
• Voltage - On State: 8V
• Current - Peak Pulse (8/20µs): 150A
• Current - Peak Pulse (10/1000µs): 45A
• Current - Hold (Ih): 150mA
• Number of Elements: 3
• Package / Case: 3-SIP
• Mounting Type: Through Hole
• Supplier Device Package: TO-220 Modified

The identified substitutes P3203AAL and P3203AALRP meet all these parameters. The primary distinction between substitute parts is packaging configuration: P3203AAL is supplied in bulk packaging, while P3203AALRP is supplied in tape and reel format.

Parameter Comparison

Engineering Selection Recommendations

Both P3203AAL and P3203AALRP are active product alternatives to the obsolete P3203AARP. Selection between these substitutes depends on procurement and assembly requirements:

P3203AAL is supplied in bulk packaging and is suitable for applications where standard packaging is acceptable and inventory management does not require automated tape and reel handling.

P3203AALRP is supplied in tape and reel format and is suitable for high-volume production environments utilizing automated component placement equipment.

Both substitutes achieve ROHS3 compliance, providing environmental regulatory advantage over the original P3203AARP component. All three parts share identical electrical performance characteristics and mechanical compatibility within the 3-SIP TO-220 Modified package configuration.

Frequently Asked Questions (FAQ)

Q: Can P3203AAL or P3203AALRP be used as direct replacements for P3203AARP?

A: Yes. Both parts are electrically and mechanically equivalent. All critical parameters including voltage ratings, current ratings, element count, and package configuration are identical. The primary differences are product status (active vs. obsolete) and packaging format (bulk vs. tape and reel).

Q: What is the difference between P3203AAL and P3203AALRP?

A: The electrical and mechanical specifications are identical. The difference is packaging: P3203AAL is supplied in bulk format, while P3203AALRP is supplied in tape and reel format. Selection depends on assembly process requirements and volume considerations.

Q: Are there compliance differences between the original part and substitutes?

A: Yes. The P3203AARP is RoHS non-compliant, while both P3203AAL and P3203AALRP are ROHS3 compliant. This provides regulatory advantage for new designs and applications subject to RoHS requirements.

Q: Will the through-hole mounting and TO-220 Modified package remain compatible?

A: Yes. All three parts use identical through-hole mounting and TO-220 Modified package configuration, ensuring PCB layout and assembly compatibility without modification.

Q: What inventory considerations apply to these substitutes?

A: P3203AAL has 90,300 pieces in stock (bulk packaging). P3203AALRP has 1,061 pieces in stock (tape and reel packaging). Availability should be confirmed based on procurement timeline and volume requirements.