P2202AA Equivalent & Substitute Parts

Part Overview

The P2202AA is a SIDACtor® thyristor transient voltage suppressor manufactured by Littelfuse Inc., designed for 90V/180V off-state voltage applications with 150A peak pulse current capability in a 3-SIP TO-220 Modified package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The P2202AA provides bidirectional overvoltage protection through thyristor-based transient suppression with dual-element configuration.

Substiute Parts

P2202AA

Littelfuse Inc.In Stock: 946P2202AA Datasheet

Current PartRFQ

P2202AAL

Littelfuse Inc.In Stock: 2165P2202AAL Datasheet

DirectRFQ

P2202AALRP

Littelfuse Inc.In Stock: 791P2202AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P2202AA is determined by electrical and mechanical parameter equivalence across the SIDACtor® series. The following criteria establish valid substitutes:

Electrical Parameters (Must Match):

• Voltage - Breakover: 130V, 260V
• Voltage - Off State: 90V, 180V
• Voltage - On State: 4 V
• Current - Peak Pulse (8/20µs): 150 A
• Current - Peak Pulse (10/1000µs): 45 A
• Current - Hold (Ih): 150 mA
• Number of Elements: 2
• Capacitance: 30pF, 50pF

Mechanical Parameters (Must Match):

• Package / Case: 3-SIP
• Mounting Type: Through Hole
• Supplier Device Package: TO-220 Modified

The substitute parts P2202AAL and P2202AALRP maintain identical electrical and mechanical specifications to the P2202AA, with differences limited to packaging format (Bulk vs. Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

P2202AAL (Bulk Packaging): This part is the direct functional equivalent to the P2202AA with active product status. It maintains all electrical and mechanical specifications while offering ROHS3 compliance. Selection of P2202AAL is appropriate for applications requiring bulk component quantities and standard packaging formats.

P2202AALRP (Tape & Reel Packaging): This part provides identical electrical and mechanical performance to the P2202AA with active product status and ROHS3 compliance. The Tape & Reel packaging format is suitable for automated assembly processes and high-volume production environments.

Both substitute parts eliminate the obsolescence risk associated with the P2202AA while providing improved regulatory compliance through ROHS3 certification. Selection between P2202AAL and P2202AALRP depends on procurement requirements and assembly methodology rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can P2202AAL or P2202AALRP be used as direct replacements for P2202AA in existing designs?

A: Yes. Both substitute parts maintain identical electrical parameters (breakover voltage, off-state voltage, on-state voltage, peak pulse current, hold current, and capacitance) and mechanical specifications (3-SIP package, TO-220 Modified supplier package, through-hole mounting). No circuit redesign is required.

Q: What is the difference between P2202AAL and P2202AALRP?

A: The electrical and mechanical specifications are identical. The difference is packaging format: P2202AAL is supplied in Bulk packaging, while P2202AALRP is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and procurement volume.

Q: Why is the P2202AA listed as obsolete?

A: The P2202AA has reached end-of-life status. P2202AAL and P2202AALRP are active production parts that provide equivalent functionality with improved regulatory compliance.

Q: Are there RoHS compliance differences between the substitute parts and the original?

A: Yes. The P2202AA is RoHS non-compliant, while both P2202AAL and P2202AALRP are ROHS3 compliant. This provides improved environmental and regulatory alignment for new designs and procurement.

Q: Do the substitute parts have the same pin configuration and footprint?

A: Yes. Both P2202AAL and P2202AALRP use the same 3-SIP package with TO-220 Modified supplier package designation, ensuring identical PCB footprint and pin compatibility.