P4SMA180A TR13 Equivalent & Substitute Parts

Part Overview

The P4SMA180A TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp, designed for general-purpose overvoltage protection applications. It features a 180V reverse standoff voltage with 292V maximum clamping voltage and 1.3A peak pulse current capability in a surface-mount SMA package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

P4SMA180A TR13

Central Semiconductor CorpIn Stock: 1096P4SMA180A TR13 Datasheet

Current PartRFQ

SMDJ180A

Littelfuse Inc.In Stock: 1647SMDJ180A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMA180A TR13 is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 180V
• Voltage - Breakdown (Min): 198V
• Voltage - Clamping (Max) @ Ipp: 292V
• Type: Unidirectional Zener TVS Diode

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package Category: SMA or equivalent footprint

The SMDJ180A from Littelfuse Inc. satisfies all electrical equivalence requirements with identical standoff, breakdown, and clamping voltage specifications. While the SMDJ180A operates at higher peak pulse current (10.3A versus 1.3A) and power dissipation (3kW versus 400W), these represent enhanced capabilities that maintain full backward compatibility for the P4SMA180A application space. The package transition from SMA (DO-214AC) to SMC (DO-214AB) requires PCB layout verification but represents a standard industry substitution path for this voltage class.

Parameter Comparison

Engineering Selection Recommendations

The SMDJ180A is the primary substitute for the obsolete P4SMA180A TR13 based on the following factors:

Electrical Compatibility: All critical voltage parameters (reverse standoff, breakdown, and clamping) are identical. The enhanced current and power ratings of the SMDJ180A provide superior transient suppression capability without compromising the original circuit protection function.

Product Status: The SMDJ180A maintains active product status with Littelfuse Inc., ensuring long-term availability and supply chain continuity. The P4SMA180A obsolescence status necessitates this transition.

Compliance & Certifications: The SMDJ180A is RoHS3 compliant and REACH affected, meeting current regulatory requirements. Both devices share identical MSL ratings and ECCN/HTSUS classifications.

Package Consideration: The transition from SMA (DO-214AC) to SMC (DO-214AB) requires PCB footprint modification. SMC packages are physically larger and accommodate higher power dissipation. Design teams must verify PCB layout compatibility before implementation.

Frequently Asked Questions (FAQ)

Q: Can the SMDJ180A directly replace the P4SMA180A TR13 without PCB modifications?

A: Electrical substitution is valid; however, package differences require PCB layout changes. SMA and SMC packages have different footprints and land patterns. PCB redesign is necessary for mechanical fit.

Q: What is the significance of the higher current rating (10.3A vs. 1.3A) in the SMDJ180A?

A: The SMDJ180A's higher peak pulse current and power dissipation represent enhanced transient suppression capability. This provides superior protection margin for the same voltage class and maintains full backward compatibility with applications designed for the P4SMA180A.

Q: Are there any temperature range differences between these devices?

A: The SMDJ180A operates across a wider temperature range (-65°C to 150°C) compared to the P4SMA180A (-55°C to 150°C). This extended lower temperature limit provides additional operational margin in cold-environment applications.

Q: What compliance certifications apply to the SMDJ180A?

A: The SMDJ180A is RoHS3 compliant and REACH affected. Both devices share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications for export and tariff purposes.

Q: Is the SMDJ180A available in the same packaging format as the P4SMA180A?

A: No. The P4SMA180A uses SMA (DO-214AC) packaging, while the SMDJ180A uses SMC (DO-214AB) packaging. The SMC package is larger and designed for higher power dissipation applications. Footprint verification is required before design implementation.