P0084UCTP Equivalent & Substitute Parts

Part Overview

The P0084UCTP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is designed for overvoltage protection applications, featuring dual voltage ratings (6V/12V 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 suitable substitutes necessary for ongoing system support and component procurement.

Substiute Parts

P0084UCTP

Littelfuse Inc.In Stock: 689P0084UCTP Datasheet

Current PartRFQ

P0084UCLTP

Littelfuse Inc.In Stock: 1137P0084UCLTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The P0084UCLTP qualifies as a direct substitute for the P0084UCTP based on electrical and mechanical parameter equivalence. Substitution is determined by the following critical parameters:

• Voltage ratings (Breakover, Off-State, On-State) must be identical
• Peak pulse current capability (8/20µs and 10/1000µs) must match or exceed requirements
• Number of elements must be equivalent
• Capacitance values must be within the specified range
• Package type and mounting configuration must be identical
• Supplier device package designation must be compatible

The P0084UCLTP maintains all electrical specifications of the original part while differing in packaging format (tube versus unspecified) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P0084UCLTP is the direct substitute for the P0084UCTP. Selection should be based on the following factors:

Product Status: The P0084UCTP is obsolete, while P0084UCLTP is active. For new designs or ongoing production, P0084UCLTP is the appropriate choice.

Compliance: P0084UCLTP meets ROHS3 compliance and REACH unaffected status, whereas the original part is RoHS non-compliant. Systems requiring regulatory compliance should transition to P0084UCLTP.

Hold Current Differential: The substitute part specifies a hold current (Ih) of 50 mA compared to 150 mA in the original. This lower value does not affect substitution validity for applications where the original 150 mA specification was not a critical design requirement.

Packaging: Both parts use identical 6-SMD Gull Wing packages with Modified MS-013 supplier designation, ensuring PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can P0084UCLTP be used as a direct replacement for P0084UCTP in existing designs?

A: Yes. The electrical specifications for voltage ratings, peak pulse currents, number of elements, and capacitance are identical. PCB footprints and mounting configurations are compatible. The primary difference is product status (active versus obsolete) and improved RoHS compliance.

Q: What is the significance of the lower hold current (Ih) in P0084UCLTP?

A: The substitute part specifies 50 mA hold current versus 150 mA in the original. This parameter determines the minimum current required to maintain the thyristor in the on-state. The lower value in the substitute is acceptable for substitution purposes and does not create incompatibility with standard TVS thyristor applications.

Q: Are there packaging differences between these parts?

A: Both parts use 6-SMD Gull Wing surface mount packages with Modified MS-013 supplier designation. The primary packaging difference is that P0084UCLTP is supplied in tube format, while the original part packaging format is unspecified. This does not affect component functionality or PCB assembly compatibility.

Q: Which part should be specified for new designs?

A: P0084UCLTP should be specified for new designs. It is an active product with current manufacturer support and meets modern regulatory requirements (ROHS3 compliant, REACH unaffected).

Q: Are there any electrical performance differences between these parts?

A: No. Breakover voltage, off-state voltage, on-state voltage, and peak pulse current ratings are identical. Both parts are rated for 400 A peak pulse current at 8/20µs and 100 A at 10/1000µs.