P3406UATP Equivalent & Substitute Parts

Part Overview

The P3406UATP is a 300V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring high current handling in a compact 6-SMD gull wing package. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

P3406UATP

Littelfuse Inc.In Stock: 1010P3406UATP Datasheet

Current PartRFQ

P3406UALTP

Littelfuse Inc.In Stock: 761P3406UALTP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P3406UATP 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 handling (both 8/20µs and 10/1000µs waveforms)
• Hold current specification
• Number of elements (6-element configuration)
• Capacitance values
• Physical package format (6-SMD, gull wing)
• Mounting type (surface mount)

The P3406UALTP meets all these criteria as a direct electrical and mechanical equivalent, with identical voltage and current specifications, element count, and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The P3406UALTP is the direct substitute for the obsolete P3406UATP. Both components share identical electrical specifications and physical packaging, ensuring functional equivalence in circuit applications. The P3406UALTP is currently in active production status, providing supply continuity for systems requiring this TVS thyristor configuration.

The P3406UALTP offers improved regulatory compliance, meeting ROHS3 requirements compared to the non-compliant status of the original part. This compliance improvement is significant for applications subject to environmental and regulatory standards. Both parts maintain the same moisture sensitivity level and are suitable for identical mounting and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can P3406UALTP be used as a direct replacement for P3406UATP?

A: Yes. The P3406UALTP is electrically and mechanically equivalent to the P3406UATP. All voltage ratings, current specifications, element count, and package configuration are identical.

Q: What is the primary difference between these two parts?

A: The P3406UATP is obsolete, while the P3406UALTP is in active production. Additionally, the P3406UALTP meets ROHS3 compliance standards, whereas the P3406UATP is non-compliant.

Q: Are the packaging formats identical?

A: Yes. Both parts use the 6-SMD gull wing package with Modified MS-013 supplier device package designation. Surface mount assembly procedures are identical.

Q: What are the critical parameters for substitution?

A: Substitution is valid when voltage ratings (400V breakover, 300V off-state, 8V on-state), peak pulse currents (150A at 8/20µs, 45A at 10/1000µs), hold current (150mA), element count (6), and package format (6-SMD gull wing) are identical.

Q: Is there any difference in handling or storage requirements?

A: No. Both parts have identical moisture sensitivity level (MSL 1 - Unlimited), requiring the same handling and storage protocols.