P4SMAJ7.5A Equivalent & Substitute Parts

Part Overview

The P4SMAJ7.5A is an active Transient Voltage Suppressor (TVS) diode manufactured by Diotec Semiconductor. This unidirectional zener-type TVS device is designed for general-purpose transient voltage suppression applications and is available in surface mount packaging. The part operates across a temperature range of -50°C to 150°C and is currently in active production status with 2200 pieces in stock.

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, when alternative packaging configurations are required, or when supply chain optimization is necessary. Substitutes must maintain electrical equivalence across all critical parameters including voltage ratings, clamping characteristics, and peak pulse current specifications.

Substiute Parts

P4SMAJ7.5A

Diotec SemiconductorIn Stock: 2310P4SMAJ7.5A Datasheet

Current PartRFQ

PTVS7V5S1UR,115

Nexperia USA Inc.In Stock: 18718PTVS7V5S1UR,115 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4SMAJ7.5A is determined by electrical parameter equivalence across the following critical specifications:

Voltage Parameters: The reverse standoff voltage (7.5V typical), breakdown voltage minimum (8.3V), and clamping voltage maximum at peak pulse current (12.9V) must remain constant across all substitute parts. These parameters define the protection threshold and response characteristics of the TVS device.

Current and Power Ratings: The peak pulse current specification (31A at 10/1000µs pulse width) and peak pulse power rating (400W) establish the transient suppression capacity. Substitute parts must maintain these exact specifications.

Device Type and Configuration: All substitutes must be unidirectional zener-type TVS diodes with a single channel configuration to ensure functional equivalence in circuit protection applications.

Mounting and Packaging: While package styles may differ (SMA versus SOD-123W), all substitutes must be surface mount devices suitable for automated assembly processes.

The PTVS7V5S1UR,115 manufactured by Nexperia USA Inc. qualifies as an electrical equivalent based on matching all critical voltage, current, and power parameters while offering an alternative package configuration and enhanced supply availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The P4SMAJ7.5A remains the preferred selection when SMA (DO-214AC) package compatibility is required for existing PCB layouts and when Diotec Semiconductor sourcing is established within supply chain protocols.

Substitute Part Selection: The PTVS7V5S1UR,115 is electrically equivalent and qualifies as a direct substitute when the following conditions are met:

1. PCB layout can accommodate SOD-123W package geometry in place of SMA (DO-214AC)
2. Supply chain requirements permit Nexperia USA Inc. as an approved manufacturer
3. Automotive-grade qualification (AEC-Q101) and ROHS3 compliance are acceptable or required for the application
4. Higher inventory availability (18660 pieces) supports project timelines

Compliance Considerations: The PTVS7V5S1UR,115 carries AEC-Q101 automotive qualification and ROHS3 compliance status, making it suitable for applications requiring enhanced quality assurance or regulatory compliance. The P4SMAJ7.5A does not carry these designations but remains suitable for general-purpose applications where such certifications are not mandated.

Inventory and Availability: The PTVS7V5S1UR,115 offers significantly higher stock availability (18660 pieces) compared to the P4SMAJ7.5A (2200 pieces), providing supply chain flexibility for high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can the PTVS7V5S1UR,115 be used as a direct replacement for the P4SMAJ7.5A in all applications?

A: The PTVS7V5S1UR,115 is electrically equivalent across all critical parameters (voltage ratings, current capacity, and power dissipation). However, the package change from SMA (DO-214AC) to SOD-123W requires PCB layout verification. Physical dimensions, lead spacing, and mounting footprints differ between these packages. PCB redesign or rework may be necessary.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution eligibility is determined by matching the following parameters: reverse standoff voltage (7.5V), breakdown voltage minimum (8.3V), clamping voltage maximum at peak pulse current (12.9V), peak pulse current (31A), and peak pulse power rating (400W). All substitute parts must maintain these exact specifications to ensure equivalent circuit protection performance.

Q: Does the PTVS7V5S1UR,115 require different handling or storage procedures?

A: The PTVS7V5S1UR,115 carries Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. Standard surface mount component handling procedures apply.

Q: Are there temperature range differences between these parts?

A: The P4SMAJ7.5A operates from -50°C to 150°C (junction temperature). The PTVS7V5S1UR,115 operates from -55°C to 150°C (ambient temperature). Both ranges are functionally equivalent for general-purpose applications, with the substitute offering slightly extended low-temperature performance.

Q: What packaging format is the PTVS7V5S1UR,115 supplied in?

A: The PTVS7V5S1UR,115 is supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly. The P4SMAJ7.5A packaging format is not specified in the provided data.

Q: Can both parts be used interchangeably in the same circuit design?

A: Both parts provide identical electrical performance for transient voltage suppression. Circuit-level interchangeability depends on PCB layout compatibility with the different package geometries. Electrical performance is not affected by the package change.