P6SMB7.5A Equivalent & Substitute Parts

Part Overview

The P6SMB7.5A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 6.4V reverse standoff voltage, 11.3V maximum clamping voltage, and 54A peak pulse current capability in a DO-214AA (SMB) package. The part is active in production and RoHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity.

Substiute Parts

P6SMB7.5A

Littelfuse Inc.In Stock: 300192P6SMB7.5A Datasheet

Current PartRFQ

SMBJ6.5A

Taiwan Semiconductor CorporationIn Stock: 18060SMBJ6.5A Datasheet

MFR RecommendedRFQ

SM6T7V5A

STMicroelectronicsIn Stock: 9706SM6T7V5A Datasheet

DirectRFQ

SMBJP6KE7.5A-TP

Micro Commercial CoIn Stock: 827SMBJP6KE7.5A-TP Datasheet

DirectRFQ

P6SMB7-5A

Eaton - Electronics DivisionIn Stock: 4193P6SMB7-5A Datasheet

MFR RecommendedRFQ

SM6T7V5AY

STMicroelectronicsIn Stock: 1581SM6T7V5AY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6SMB7.5A are qualified based on the following critical parameters:

• Reverse standoff voltage within 6.4V to 6.5V range
• Clamping voltage (Max) between 11.2V and 14.5V
• Peak pulse current capability of 54A or greater
• Peak pulse power rating of 600W
• Surface-mount package format (DO-214AA / SMB)
• Unidirectional Zener diode topology
• Operating temperature range of -55°C minimum to 150°C or higher
• RoHS3 compliance or equivalent environmental certification

Parts meeting these criteria are electrically and mechanically compatible for direct substitution in general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturing status and appropriate environmental compliance certifications. Selection among these alternatives is determined by application-specific requirements and availability:

SMBJ6.5A (Taiwan Semiconductor Corporation) provides the closest electrical match with a 6.5V standoff voltage and 11.2V clamping voltage, maintaining performance characteristics nearly identical to the P6SMB7.5A while offering alternative sourcing.

SM6T7V5A and SM6T7V5AY (STMicroelectronics) feature higher peak pulse current capability (276A at 8/20µs pulse width) and elevated clamping voltage (14.5V), suitable for applications requiring enhanced transient suppression margin. SM6T7V5AY includes automotive-grade qualification (AEC-Q101) for applications requiring automotive reliability standards.

SMBJP6KE7.5A-TP (Micro Commercial Co) matches the P6SMB7.5A electrical specifications exactly and supports extended operating temperature to 175°C, applicable in high-temperature environments.

P6SMB7-5A (Eaton - Electronics Division) is electrically equivalent to the P6SMB7.5A with identical voltage and current ratings, designated for telecom applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ6.5A replace P6SMB7.5A directly?

A: Yes. The SMBJ6.5A operates within the substitution parameters with a 6.5V standoff voltage (versus 6.4V) and 11.2V clamping voltage (versus 11.3V). Both are unidirectional Zener TVS diodes in DO-214AA packages with 600W peak pulse power and -55°C to 150°C operating range. The 0.1V difference in standoff voltage and 0.1V difference in clamping voltage are within acceptable tolerance for general-purpose protection circuits.

Q: What is the difference between SM6T7V5A and P6SMB7.5A?

A: The SM6T7V5A shares the same 6.4V standoff voltage and 7.13V breakdown voltage as the P6SMB7.5A. However, it features a higher clamping voltage (14.5V versus 11.3V) and significantly higher peak pulse current (276A at 8/20µs versus 54A at 10/1000µs). This makes SM6T7V5A suitable for applications requiring greater transient energy absorption and faster pulse response, though it may not be necessary for circuits designed around the P6SMB7.5A specifications.

Q: Is SM6T7V5AY automotive-qualified?

A: Yes. SM6T7V5AY carries AEC-Q101 automotive qualification and is designated as automotive-grade. It is suitable for automotive and other mission-critical applications requiring automotive reliability standards. Electrically, it matches SM6T7V5A with 6.4V standoff voltage, 14.5V clamping voltage, and 276A peak pulse current.

Q: Can I use SMBJP6KE7.5A-TP in high-temperature applications?

A: Yes. SMBJP6KE7.5A-TP supports operating temperatures from -55°C to 175°C, extending 25°C above the standard -55°C to 150°C range of the P6SMB7.5A. This part is suitable for applications in elevated-temperature environments while maintaining identical electrical performance (6.4V standoff, 11.3V clamping, 54A peak pulse current).

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance or equivalent RoHS certification, meeting environmental and hazardous substance restrictions applicable to electronic components.

Q: Do all substitute parts use the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) surface-mount package, ensuring mechanical and footprint compatibility with designs specified for the P6SMB7.5A.