P5103UATP Equivalent & Substitute Parts

Part Overview

The P5103UATP is a 420V off-state transient voltage suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is designed for overvoltage protection applications requiring 150 A peak pulse current capability in a 6-SMD gull wing surface mount package. The P5103UATP is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

P5103UATP

Littelfuse Inc.In Stock: 1222P5103UATP Datasheet

Current PartRFQ

P5103UALTP

Littelfuse Inc.In Stock: 783P5103UALTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P5103UATP 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 specifications (8/20µs and 10/1000µs)
• Hold current (Ih)
• Number of elements
• Capacitance range
• Physical package configuration (6-SMD, gull wing)
• Supplier device package designation

The P5103UALTP meets all these criteria as a direct substitute, with identical electrical performance and mechanical compatibility. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The P5103UALTP is the direct equivalent for the obsolete P5103UATP. Selection between these parts is determined by regulatory and procurement requirements:

• For new designs or systems requiring RoHS3 compliance, the P5103UALTP is the appropriate choice, as it meets current environmental standards while maintaining identical electrical and mechanical specifications.
• The P5103UALTP is classified as active product status, ensuring long-term availability and manufacturing support.
• Both parts share identical electrical performance and package configuration, enabling direct substitution in existing designs.
• The P5103UALTP is supplied in tube packaging, whereas the P5103UATP packaging format is not specified in the provided data.

Frequently Asked Questions (FAQ)

Q: Can the P5103UALTP replace the P5103UATP in existing applications?

A: Yes. The P5103UALTP is electrically and mechanically identical to the P5103UATP. All voltage ratings, current specifications, capacitance values, and package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the primary reason to transition from P5103UATP to P5103UALTP?

A: The P5103UATP is obsolete, while the P5103UALTP maintains active product status. Additionally, the P5103UALTP is ROHS3 compliant, meeting current environmental regulations, whereas the P5103UATP is non-compliant.

Q: Are there any differences in thermal or reliability characteristics?

A: No differences are specified in the provided technical parameters. Both parts share identical electrical ratings, hold current specifications, and moisture sensitivity levels.

Q: What packaging format is supplied for the P5103UALTP?

A: The P5103UALTP is supplied in tube packaging. Confirm packaging requirements for your procurement process.

Q: Are both parts suitable for high-reliability applications?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity constraints. Compliance requirements should be evaluated based on application standards and regulatory frameworks.