P5103UCTP Equivalent & Substitute Parts

Part Overview

The P5103UCTP is a 420V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring high current handling in a compact 6-SMD, Gull Wing surface mount package. The part is currently obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P5103UCTP

Littelfuse Inc.In Stock: 730P5103UCTP Datasheet

Current PartRFQ

P5103UCLTP

Littelfuse Inc.In Stock: 1203P5103UCLTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P5103UCTP is determined by electrical and mechanical parameter equivalence. The critical parameters defining substitutability are:

• Voltage ratings (breakover, off-state, and on-state)
• Peak pulse current handling (8/20µs and 10/1000µs waveforms)
• Hold current specification
• Element count and capacitance values
• Physical package configuration (6-SMD, Gull Wing)
• Supplier device package designation

The P5103UCLTP meets all these criteria as a direct electrical and mechanical equivalent, with identical voltage, current, and capacitance specifications. The primary difference is packaging format (tube versus unspecified) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P5103UCLTP is the direct substitute for the obsolete P5103UCTP. Both parts are electrically and mechanically identical across all specified parameters. The P5103UCLTP is currently in active production status with improved regulatory compliance (ROHS3 Compliant versus RoHS non-compliant). For new designs or ongoing procurement, the P5103UCLTP is the appropriate selection. Both parts maintain identical moisture sensitivity levels and are suitable for the same application environments.

Frequently Asked Questions (FAQ)

Q: Can P5103UCLTP be used as a direct replacement for P5103UCTP? A: Yes. The P5103UCLTP is electrically and mechanically equivalent to the P5103UCTP across all specified parameters including voltage ratings, peak pulse currents, hold current, element count, capacitance values, and package configuration.

Q: What is the difference between P5103UCTP and P5103UCLTP? A: The primary differences are product status (obsolete versus active) and packaging format (unspecified versus tube). The P5103UCLTP also carries ROHS3 compliance certification. All electrical and mechanical specifications are identical.

Q: Are there any package or mounting differences? A: No. Both parts use identical 6-SMD, Gull Wing surface mount packages with Modified MS-013 supplier device package designation. PCB layout and assembly processes remain unchanged.

Q: What is the moisture sensitivity level for these parts? A: Both the P5103UCTP and P5103UCLTP carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Is the P5103UCLTP RoHS compliant? A: Yes. The P5103UCLTP is ROHS3 compliant. The original P5103UCTP is RoHS non-compliant. For applications requiring RoHS compliance, the P5103UCLTP is the appropriate selection.