P6SMB9.1CA-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB9.1CA-M3/52 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates as a bidirectional Zener diode in the DO-214AA (SMB) package, designed for general-purpose transient voltage suppression applications. The device is actively produced and ROHS3 compliant, making it suitable for modern electronic assemblies requiring overvoltage protection. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

P6SMB9.1CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 984P6SMB9.1CA-M3/52 Datasheet

Current PartRFQ

P6SMB9.1CA

Taiwan Semiconductor CorporationIn Stock: 30314P6SMB9.1CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for TVS diodes is determined by matching the following critical parameters:

• Voltage - Reverse Standoff (Typ): 7.78V
• Voltage - Breakdown (Min): 8.65V
• Voltage - Clamping (Max) @ Ipp: 13.4V
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

The P6SMB9.1CA manufactured by Taiwan Semiconductor Corporation meets all substitution criteria. Both devices share identical voltage specifications, clamping characteristics, and package configuration. Minor variations in peak pulse current (47A vs. 44.8A) and operating temperature range remain within acceptable tolerance for general-purpose applications where the base electrical performance is preserved.

Parameter Comparison

Engineering Selection Recommendations

Both the P6SMB9.1CA-M3/52 (Vishay) and P6SMB9.1CA (Taiwan Semiconductor) are active products with ROHS3 compliance and REACH unaffected status. Selection between these devices should be based on:

• Availability and lead time requirements
• Supply chain preferences and inventory levels
• Packaging format: Vishay supplies in Tape & Box (TB); Taiwan Semiconductor supplies in Tape & Reel (TR)
• Operating temperature minimum: Vishay supports -65°C; Taiwan Semiconductor supports -55°C

For applications requiring the full -65°C lower temperature limit, the Vishay device is the appropriate choice. For general-purpose applications within the -55°C to 150°C range, either device provides equivalent electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB9.1CA from Taiwan Semiconductor directly replace the P6SMB9.1CA-M3/52 from Vishay?

A: Yes, for applications operating within -55°C to 150°C. Both devices share identical voltage specifications (7.78V standoff, 8.65V breakdown, 13.4V clamping), power rating (600W), and DO-214AA SMB package configuration. The peak pulse current difference (47A vs. 44.8A) represents a 5% increase, which is compatible with the original design.

Q: What is the significance of the packaging difference (Tape & Box vs. Tape & Reel)?

A: Tape & Box (TB) packaging is typically used for smaller order quantities and manual handling, while Tape & Reel (TR) packaging is optimized for automated assembly processes. Both formats contain the same component; the choice depends on manufacturing process requirements and volume.

Q: Are there temperature range limitations when substituting?

A: The Vishay device operates from -65°C to 150°C, while the Taiwan Semiconductor device operates from -55°C to 150°C. If your application requires operation below -55°C, the Vishay device must be used. Otherwise, both devices are compatible.

Q: Do both devices meet the same compliance standards?

A: Yes. Both the P6SMB9.1CA-M3/52 and P6SMB9.1CA are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.