P4SMA30CA-M3/61 Equivalent & Substitute Parts

Part Overview

The P4SMA30CA-M3/61 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-214AC (SMA) package, designed for general purpose transient voltage suppression applications. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P4SMA30CA-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 853P4SMA30CA-M3/61 Datasheet

Current PartRFQ

P4SMA30CA-E3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 5267P4SMA30CA-E3/61 Datasheet

DirectRFQ

P4SMA30CA

Eaton - Electronics DivisionIn Stock: 1270P4SMA30CA Datasheet

MFR RecommendedRFQ

SMA6T30CAY

STMicroelectronicsIn Stock: 3562SMA6T30CAY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4SMA30CA-M3/61 are classified based on electrical and mechanical parameter compatibility. The primary substitution criteria are:

• Voltage - Reverse Standoff (Typ): 25.6V
• Voltage - Breakdown (Min): 28.5V
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

Substitutes are grouped into two categories:

Direct Equivalents: Parts with identical or functionally equivalent electrical specifications, including voltage clamping, peak pulse current, and power dissipation ratings. These parts maintain the same performance envelope and can be used interchangeably in the same circuit design.

Cross-Manufacturer Alternatives: Parts from different manufacturers that meet the core voltage and package requirements but may have variations in peak pulse current ratings or clamping voltage specifications. These parts require verification of application-specific performance requirements.

Parameter Comparison

Engineering Selection Recommendations

P4SMA30CA-E3/61 (Vishay): This part is a direct equivalent to the P4SMA30CA-M3/61, differing only in packaging configuration (E3/61 vs. M3/61 tape and reel specifications). Electrical performance, temperature range, and compliance certifications are identical. This substitute is suitable for direct replacement in all applications.

P4SMA30CA (Eaton): This part maintains identical voltage specifications and package type. Peak pulse current is marginally higher at 9.9A versus 9.7A, and the operating temperature range is narrower (-55°C to 150°C versus -65°C to 150°C). This substitute is suitable for applications where the lower temperature limit of -55°C is acceptable. RoHS compliance is confirmed.

SMA6T30CAY (STMicroelectronics): This part shares the same reverse standoff voltage (25.6V) and package type but exhibits higher clamping voltage (53.5V) and significantly higher peak pulse current (75A at 8/20µs pulse). The operating temperature range is narrower (-40°C to 150°C). This part includes AEC-Q101 automotive qualification. This substitute is suitable only for applications where higher transient current handling and higher clamping voltage are acceptable or beneficial. The narrower temperature range must be verified against application requirements.

Frequently Asked Questions (FAQ)

Q: Can P4SMA30CA-E3/61 be used as a direct replacement for P4SMA30CA-M3/61?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications, voltage ratings, and temperature range. The difference is in tape and reel packaging configuration (M3/61 versus E3/61). They are functionally interchangeable.

Q: What is the key difference between the Eaton P4SMA30CA and the Vishay P4SMA30CA-M3/61?

A: The Eaton part has a narrower operating temperature range (-55°C to 150°C versus -65°C to 150°C) and slightly higher peak pulse current (9.9A versus 9.7A). Voltage specifications are identical. Verify that the -55°C minimum temperature meets your application requirements before substitution.

Q: Is the STMicroelectronics SMA6T30CAY a suitable substitute?

A: The SMA6T30CAY shares the same reverse standoff voltage and package type but has higher clamping voltage (53.5V versus 41.4V) and significantly higher peak pulse current (75A versus 9.7A). This part is suitable only if your application can tolerate higher clamping voltage and benefits from higher transient current capability. The narrower operating temperature range (-40°C to 150°C) must also be verified.

Q: Are all substitute parts available in the same DO-214AC (SMA) package?

A: Yes. All listed substitute parts use the DO-214AC (SMA) surface mount package, ensuring mechanical and footprint compatibility.

Q: What compliance certifications apply to these substitute parts?

A: All parts are RoHS compliant. The Vishay parts (P4SMA30CA-M3/61 and P4SMA30CA-E3/61) and STMicroelectronics SMA6T30CAY are ROHS3 compliant. The Eaton P4SMA30CA is RoHS compliant. The STMicroelectronics part includes AEC-Q101 automotive qualification.

Q: Can I use these parts interchangeably in a design without circuit modification?

A: P4SMA30CA-E3/61 can be used without modification. For the Eaton P4SMA30CA, verify the -55°C minimum temperature is acceptable. For the STMicroelectronics SMA6T30CAY, circuit analysis is required to confirm that higher clamping voltage and peak current capability do not negatively affect circuit performance or introduce unintended behavior.