P1104UCTP Equivalent & Substitute Parts

Part Overview

The P1104UCTP is a SIDACtor® thyristor transient voltage suppressor manufactured by Littelfuse Inc., designed for overvoltage protection in surface mount applications. This component features a 90V/180V off-state voltage rating with 400A peak pulse current capability in a 6-SMD gull wing package. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply availability.

Substiute Parts

P1104UCTP

Littelfuse Inc.In Stock: 849P1104UCTP Datasheet

Current PartRFQ

P1104UCLTP

Littelfuse Inc.In Stock: 1078P1104UCLTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1104UCTP is determined by strict equivalence across the following critical parameters:

• Voltage ratings: Breakover voltage (130V, 260V) and off-state voltage (90V, 180V)
• Current specifications: Peak pulse current (8/20µs) at 400A and (10/1000µs) at 100A
• On-state voltage: 4V
• Hold current: 150 mA
• Element count: 4 elements
• Capacitance range: 65pF to 115pF
• Package configuration: 6-SMD gull wing in Modified MS-013
• Mounting technology: Surface mount

The P1104UCLTP qualifies as a direct substitute based on identical electrical and mechanical specifications across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The P1104UCLTP is the direct equivalent for the obsolete P1104UCTP. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility in existing circuit designs.

The primary distinction between these parts is product status and regulatory compliance. The P1104UCTP is obsolete and RoHS non-compliant, while the P1104UCLTP is active and ROHS3 compliant. For new designs or production requiring regulatory compliance with modern environmental standards, the P1104UCLTP is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part meets the electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can the P1104UCLTP be used as a direct replacement for the P1104UCTP?

A: Yes. The P1104UCLTP is electrically and mechanically identical to the P1104UCTP across all specified parameters, including voltage ratings, current ratings, capacitance, and package configuration. No circuit modifications are required.

Q: What is the difference between these two parts?

A: The P1104UCTP is obsolete and RoHS non-compliant, while the P1104UCLTP is an active product with ROHS3 compliance. The electrical and mechanical specifications are identical.

Q: Does packaging differ between P1104UCTP and P1104UCLTP?

A: Both parts use the same 6-SMD gull wing package in Modified MS-013 configuration. The P1104UCLTP is supplied in tube packaging, while the P1104UCTP packaging specification was not provided.

Q: Are there any supply chain considerations?

A: The P1104UCTP is obsolete with limited inventory availability. The P1104UCLTP is an active product with current manufacturing and distribution support, making it the recommended choice for ongoing production requirements.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: breakover voltage (130V, 260V), off-state voltage (90V, 180V), on-state voltage (4V), peak pulse current (400A at 8/20µs), hold current (150 mA), element count (4), capacitance (65pF–115pF), and package type (6-SMD gull wing).