P4SMA33CA-M3/61 Equivalent & Substitute Parts

Part Overview

The P4SMA33CA-M3/61 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates as a unidirectional Zener diode in the DO-214AC (SMA) package, designed for general purpose transient voltage suppression applications. The part is currently in active production status with 1,088 pieces available in inventory. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P4SMA33CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 1136P4SMA33CA-M3/61 Datasheet

Current PartRFQ

P4SMA33CA

Eaton - Electronics DivisionIn Stock: 16123P4SMA33CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA33CA-M3/61 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 28.2V
• Voltage - Breakdown (Min): 31.4V
• Voltage - Clamping (Max) @ Ipp: 45.7V
• Current - Peak Pulse (10/1000µs): 8.8A minimum
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional Channels: 1

The substitute part P4SMA33CA meets all critical electrical parameters and maintains mechanical compatibility through identical package designation. Both parts operate within the same voltage suppression range and current handling capacity, ensuring functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the P4SMA33CA-M3/61 (Vishay) and P4SMA33CA (Eaton) are active production components with full RoHS compliance. The Vishay part maintains ROHS3 compliance status, while the Eaton substitute meets RoHS compliance requirements. Both components carry MSL 1 rating, indicating unlimited moisture sensitivity protection.

The Eaton P4SMA33CA provides a 2.3% increase in peak pulse current capability (9A versus 8.8A) while maintaining identical voltage suppression characteristics. The Vishay part supports a wider operating temperature range (-65°C to 150°C versus -55°C to 150°C), which may be relevant for applications requiring extended low-temperature performance.

Selection between these parts should be based on supply availability, procurement lead times, and specific application temperature requirements. Both parts are electrically and mechanically interchangeable for standard transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can the P4SMA33CA (Eaton) directly replace the P4SMA33CA-M3/61 (Vishay)?

A: Yes. Both parts share identical voltage suppression parameters (28.2V standoff, 31.4V breakdown, 45.7V clamping) and operate in the same DO-214AC (SMA) surface mount package. The Eaton substitute provides equivalent or superior current handling (9A versus 8.8A).

Q: What is the difference in operating temperature range?

A: The Vishay P4SMA33CA-M3/61 operates from -65°C to 150°C, while the Eaton P4SMA33CA operates from -55°C to 150°C. For applications requiring operation below -55°C, the Vishay part is required.

Q: Are both parts RoHS compliant?

A: Yes. The Vishay part is ROHS3 compliant, and the Eaton part is RoHS compliant. Both meet environmental compliance requirements for electronic component manufacturing and use.

Q: Do these parts require different PCB footprints?

A: No. Both parts use the DO-214AC (SMA) package designation and are mechanically identical, requiring the same PCB footprint and assembly process.

Q: What is the significance of the peak pulse current difference?

A: The Eaton part provides 9A peak pulse current versus 8.8A for the Vishay part. This 2.3% increase provides additional margin for transient suppression but does not affect substitution eligibility, as both parts meet the 400W peak pulse power specification.