P5103UBTP Equivalent & Substitute Parts

Part Overview

The P5103UBTP is a 420V off-state transient voltage suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This 6-SMD gull wing package device is designed for overvoltage protection applications requiring 250 A peak pulse current capability. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

P5103UBTP

Littelfuse Inc.In Stock: 668P5103UBTP Datasheet

Current PartRFQ

P5103UBLTP

Littelfuse Inc.In Stock: 888P5103UBLTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P5103UBTP is determined by electrical and mechanical parameter matching across the following criteria:

• Voltage ratings: Breakover voltage (600V), off-state voltage (420V), and on-state voltage (8V) must be identical
• Current specifications: Peak pulse current at 8/20µs (250A) and 10/1000µs (80A) ratings, plus hold current (150mA), must match exactly
• Physical configuration: Number of elements (3), capacitance values (40pF, 60pF), and package type (6-SMD, Gull Wing) must be identical
• Mounting and footprint: Surface mount technology with Modified MS-013 supplier device package designation

The P5103UBLTP meets all substitution criteria as a direct electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

The P5103UBLTP is the direct substitute for the obsolete P5103UBTP. Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications across all critical parameters including voltage ratings, current handling, element count, capacitance, and package configuration.

The primary distinction between these parts is product status and regulatory compliance. The P5103UBTP is obsolete, while the P5103UBLTP maintains active production status. Additionally, the P5103UBLTP carries ROHS3 compliance certification, whereas the P5103UBTP is non-compliant. For applications requiring RoHS compliance or long-term component availability, the P5103UBLTP is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can P5103UBLTP be used as a direct replacement for P5103UBTP in existing designs?

A: Yes. The P5103UBLTP is electrically and mechanically identical to the P5103UBTP. All voltage ratings, current specifications, element configuration, capacitance values, and package dimensions are equivalent. PCB layout and circuit design require no modification.

Q: What is the difference between these two part numbers?

A: The parts are functionally identical. The P5103UBLTP differs in packaging format (tube versus unspecified for P5103UBTP), product status (active versus obsolete), and regulatory compliance (ROHS3 compliant versus non-compliant). The P5103UBLTP is the current production equivalent.

Q: Are there any compatibility concerns with the 6-SMD gull wing package?

A: No. Both parts use the identical 6-SMD gull wing package with Modified MS-013 supplier device package designation. Footprint, solder pad configuration, and mounting requirements are identical.

Q: Why is the P5103UBTP listed as obsolete?

A: The P5103UBTP has been superseded by the P5103UBLTP. Littelfuse Inc. continues to manufacture the P5103UBLTP as the active production part for this specification.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical characteristics. The P5103UBLTP maintains identical electrical performance to the P5103UBTP while meeting ROHS3 material requirements.