P4SMA7.5A Equivalent & Substitute Parts

Part Overview

The P4SMA7.5A is an active Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This unidirectional zener diode operates with a reverse standoff voltage of 6.4V and provides clamping at 11.3V with a peak pulse current capability of 36.3A. The component is packaged in DO-214AC (SMA) format and is RoHS3 compliant with unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

P4SMA7.5A

Bourns Inc.In Stock: 24070P4SMA7.5A Datasheet

Current PartRFQ

P4SMA7-5A

Eaton - Electronics DivisionIn Stock: 10838P4SMA7-5A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA7.5A is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 6.4V
• Voltage - Clamping (Max) @ Ipp: 11.3V
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C (TJ)

The P4SMA7-5A, manufactured by Eaton - Electronics Division, meets these core electrical and mechanical requirements. Both parts share identical voltage specifications, thermal operating range, and surface-mount SMA packaging. The substitute maintains the same functional classification within the P4SMA series and is suitable for direct replacement in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

Both the P4SMA7.5A and P4SMA7-5A are active products with confirmed inventory availability. The P4SMA7.5A (Bourns) maintains RoHS3 compliance, while the P4SMA7-5A (Eaton) is RoHS compliant. Both components carry REACH Affected status and EAR99 export classification. Selection between these parts should be based on application-specific current requirements, as the Bourns variant supports 36.3A peak pulse current while the Eaton variant supports 4A peak pulse current. For applications requiring the full 36.3A capability, the P4SMA7.5A is the appropriate choice. For lower-current applications within the 4A specification, the P4SMA7-5A provides equivalent voltage protection with identical thermal and packaging characteristics.

Frequently Asked Questions (FAQ)

Q: Can the P4SMA7-5A replace the P4SMA7.5A in all applications?

A: The P4SMA7-5A can replace the P4SMA7.5A only in applications where the peak pulse current requirement does not exceed 4A. Both parts provide identical voltage clamping (11.3V) and reverse standoff voltage (6.4V). Applications requiring the full 36.3A peak pulse current capability must use the P4SMA7.5A.

Q: Are the packages identical between these two parts?

A: Yes. Both the P4SMA7.5A and P4SMA7-5A use the DO-214AC (SMA) surface-mount package with identical pinout and footprint compatibility.

Q: What is the difference in RoHS compliance between these parts?

A: The P4SMA7.5A is RoHS3 compliant, while the P4SMA7-5A is RoHS compliant. Both meet current regulatory requirements. RoHS3 represents the most recent directive iteration and may be preferred for new designs subject to the latest environmental standards.

Q: Do both parts operate across the same temperature range?

A: Yes. Both the P4SMA7.5A and P4SMA7-5A operate from -55°C to 150°C (TJ), providing identical thermal performance across the full operating range.

Q: What applications are these parts suitable for?

A: The P4SMA7.5A is specified for general-purpose overvoltage protection. The P4SMA7-5A is specified for telecom applications. Both provide transient voltage suppression in surface-mount configurations where 6.4V standoff and 11.3V clamping voltages are required.