P4SMA10A-M3/61 Equivalent & Substitute Parts

Part Overview

The P4SMA10A-M3/61 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 8.55V reverse standoff voltage range with a 14.5V maximum clamping voltage and 27.6A peak pulse current rating. The device is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when they maintain compatibility across critical electrical parameters including reverse standoff voltage, clamping voltage, peak pulse current, and mechanical packaging specifications.

Substiute Parts

P4SMA10A-M3/61

Vishay General Semiconductor - Diodes DivisionIn Stock: 1125P4SMA10A-M3/61 Datasheet

Current PartRFQ

P4SMA10A

Eaton - Electronics DivisionIn Stock: 10483P4SMA10A Datasheet

MFR RecommendedRFQ

SM4T10AY

STMicroelectronicsIn Stock: 5767SM4T10AY Datasheet

MFR RecommendedRFQ

SMA6J8.5A-TR

STMicroelectronicsIn Stock: 4638SMA6J8.5A-TR Datasheet

MFR RecommendedRFQ

SMAJ8.5A

MeritekIn Stock: 122822SMAJ8.5A Datasheet

MFR RecommendedRFQ

SMAJ8.5A

MeritekIn Stock: 122822SMAJ8.5A Datasheet

MFR RecommendedRFQ

SMAJ8.5A-TP

Micro Commercial CoIn Stock: 6552SMAJ8.5A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4SMA10A-M3/61 are qualified based on the following critical parameters:

• Reverse Standoff Voltage: 8.5V to 8.55V (tolerance range)
• Clamping Voltage: 14.4V to 14.5V (tolerance range)
• Peak Pulse Current: Minimum 27.6A at 10/1000µs pulse width
• Package: DO-214AC / SMA surface mount
• Unidirectional configuration with single channel
• RoHS3 compliance and MSL 1 rating

Parts meeting these criteria are considered direct substitutes. Parts with higher clamping voltages (18.7V, 19.5V) or different pulse current specifications are listed as available alternatives but operate outside the primary electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Electrical Envelope Match):

P4SMA10A (Eaton) and SMAJ8.5A variants (Meritek, Micro Commercial Co, STMicroelectronics) maintain clamping voltages within 14.4V to 14.5V and peak pulse currents within 27.6A to 28.3A specifications. These parts are suitable for direct replacement in applications where the original P4SMA10A-M3/61 performance envelope is required. All listed substitutes carry RoHS3 compliance and MSL 1 ratings, ensuring regulatory and moisture handling compatibility.

Alternative Substitutes (Extended Performance):

SM4T10AY (STMicroelectronics) and SMA6J8.5A-TR (STMicroelectronics) operate with higher clamping voltages (19.5V and 18.7V respectively) and significantly higher peak pulse currents (124A and 205A at 8/20µs pulse width). These parts are suitable for applications requiring enhanced transient suppression capability but operate outside the primary electrical envelope of the P4SMA10A-M3/61. SM4T10AY carries AEC-Q101 automotive qualification.

Temperature Considerations:

The original P4SMA10A-M3/61 specifies -65°C to 150°C junction temperature range. Substitute parts from Eaton and Meritek maintain -55°C to 150°C operation. STMicroelectronics and Micro Commercial Co variants extend to -55°C to 175°C, providing wider thermal operating margins in high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can SMAJ8.5A-TP replace P4SMA10A-M3/61 directly?

A: Yes. SMAJ8.5A-TP maintains the critical electrical parameters: 8.5V reverse standoff voltage, 14.4V clamping voltage, and 27.7A peak pulse current. The DO-214AC (SMA) package is identical. Both are RoHS3 compliant with MSL 1 rating. The operating temperature range extends to 175°C, providing additional thermal margin.

Q: What is the difference between SM4T10AY and SMAJ8.5A?

A: SM4T10AY operates with 19.5V clamping voltage and 124A peak pulse current (8/20µs), providing higher transient suppression capability. SMAJ8.5A maintains 14.4V clamping voltage and 27.78A peak pulse current (10/1000µs), matching the original P4SMA10A-M3/61 electrical envelope. SM4T10AY is AEC-Q101 qualified for automotive applications.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitute parts use DO-214AC (SMA) surface mount packaging, ensuring mechanical and thermal compatibility with the original P4SMA10A-M3/61 footprint.

Q: Which substitute offers the widest operating temperature range?

A: SMAJ8.5A-TP and SMA6J8.5A-TR both extend to -55°C to 175°C, compared to the original -65°C to 150°C specification. This provides a 25°C upper temperature margin for high-temperature circuit environments.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All listed substitute parts carry ROHS3 Compliant status with MSL 1 (Unlimited) moisture sensitivity level, ensuring regulatory and handling compatibility with the original P4SMA10A-M3/61.

Q: Can SMA6J8.5A-TR be used in place of P4SMA10A-M3/61?

A: SMA6J8.5A-TR is compatible from a package and compliance perspective but operates with 18.7V clamping voltage and 205A peak pulse current (8/20µs), exceeding the original electrical envelope. Use this part only when enhanced transient suppression is required. The 600W peak pulse power rating provides additional margin over the 400W specification.