P3104UCTP Equivalent & Substitute Parts

Part Overview

The P3104UCTP is a SIDACtor® Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., designed for overvoltage protection in surface mount applications. This component features dual voltage ratings (275V/550V off-state) with a peak pulse current capability of 400 A at 8/20µs pulse width. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

P3104UCTP

Littelfuse Inc.In Stock: 993P3104UCTP Datasheet

Current PartRFQ

P3104UCLTP

Littelfuse Inc.In Stock: 1085P3104UCLTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3104UCTP is determined by strict equivalence across the following critical parameters:

• Voltage ratings (breakover and off-state): 350V/700V and 275V/550V respectively
• Peak pulse current capability: 400 A at 8/20µs pulse width
• On-state voltage: 4 V
• Hold current: 150 mA
• Number of elements: 4
• Mounting configuration: Surface mount, 6-SMD Gull Wing package
• Supplier device package: Modified MS-013

The P3104UCLTP qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction is product status and compliance certification, not functional performance.

Parameter Comparison

Engineering Selection Recommendations

The P3104UCLTP is the direct functional equivalent of the P3104UCTP. Selection between these parts is determined by regulatory and procurement requirements rather than electrical performance:

• For new designs or systems requiring RoHS3 compliance: P3104UCLTP is the appropriate selection, as it meets current regulatory standards while maintaining identical electrical characteristics.
• For legacy system maintenance where RoHS compliance is not mandated: Either part is electrically equivalent; however, P3104UCLTP is preferred due to active product status and ongoing manufacturer support.
• Inventory and availability: P3104UCLTP currently maintains higher stock levels (1017 Pcs) compared to P3104UCTP (896 Pcs), supporting supply chain continuity.

Both parts are packaged in tube format and share identical mechanical and thermal characteristics, ensuring direct PCB-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can P3104UCLTP be used as a direct replacement for P3104UCTP in existing designs?

A: Yes. The P3104UCLTP is electrically and mechanically identical to the P3104UCTP. No circuit modifications or PCB redesign is required. Both components feature the same voltage ratings, current ratings, on-state voltage, and 6-SMD Gull Wing package configuration.

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

A: The primary differences are product status and compliance certification. The P3104UCTP is obsolete and RoHS non-compliant, while the P3104UCLTP is an active product with ROHS3 compliance and REACH unaffected status. Electrical performance and packaging are identical.

Q: Are there any packaging differences between P3104UCTP and P3104UCLTP?

A: Both parts use the same Modified MS-013 supplier device package and 6-SMD Gull Wing configuration. The P3104UCLTP is supplied in tube packaging, which is standard for active production parts.

Q: What are the critical parameters for substitution in this product category?

A: For TVS thyristor substitution, the following parameters must match: breakover voltage (350V, 700V), off-state voltage (275V, 550V), peak pulse current (400 A at 8/20µs), on-state voltage (4 V), hold current (150 mA), element count (4), and package type (6-SMD Gull Wing). Any deviation in these specifications indicates incompatibility.

Q: Is the P3104UCLTP suitable for applications requiring RoHS compliance?

A: Yes. The P3104UCLTP is ROHS3 compliant and REACH unaffected, making it suitable for applications subject to RoHS and REACH regulatory requirements.