Littelfuse P3203AA60 Equivalent & Substitute Parts

Part Overview

The Littelfuse P3203AA60 is a 270V off-state, 150A peak pulse TVS thyristor in a 3-SIP TO-220 modified package, part of the SIDACtor® series. This component is designed for transient voltage suppression applications requiring high current handling capability. The P3203AA60 is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P3203AA60

Littelfuse Inc.In Stock: 996P3203AA60 Datasheet

Current PartRFQ

P3203AAL60

Littelfuse Inc.In Stock: 810P3203AAL60 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P3203AA60 is determined by exact matching of critical electrical and mechanical parameters:

Critical Substitution Parameters:

• 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

The P3203AAL60 meets all electrical specifications and mechanical requirements identical to the main part, with the primary distinction being packaging format (bulk versus standard) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P3203AAL60 is the direct functional equivalent of the P3203AA60 with identical electrical performance and mechanical compatibility. Selection between these parts should be based on the following criteria:

For New Designs and Ongoing Production: The P3203AAL60 is the appropriate choice due to its active product status and ROHS3 compliance. This part ensures long-term availability and regulatory alignment with current environmental standards.

For Legacy System Support: The P3203AA60 remains available in inventory (974 units) for applications where existing designs require the original part number or where RoHS non-compliant components are acceptable.

Both parts share identical electrical specifications, package geometry, and thermal characteristics, ensuring direct substitution without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the P3203AAL60 replace the P3203AA60 in existing applications?

A: Yes. The P3203AAL60 is electrically and mechanically identical to the P3203AA60. All voltage ratings, current specifications, and package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between P3203AA60 and P3203AAL60?

A: The primary differences are product status (obsolete versus active), RoHS compliance (non-compliant versus ROHS3 compliant), and packaging format (standard versus bulk). Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with the 3-SIP TO-220 modified package?

A: No. Both parts use the same 3-SIP TO-220 modified package with through-hole mounting. PCB footprints and thermal management approaches remain unchanged between the two parts.

Q: Which part should be selected for new designs?

A: The P3203AAL60 should be selected for new designs. It offers active product status, ensuring availability and support, and meets ROHS3 environmental compliance requirements.

Q: Are the capacitance values identical between both parts?

A: Yes. Both the P3203AA60 and P3203AAL60 feature identical capacitance specifications of 20pF and 30pF.