P4SMA6.8CA-M3/5A Equivalent & Substitute Parts

Part Overview

The P4SMA6.8CA-M3/5A 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 P4SMA series, designed for general-purpose transient voltage suppression applications. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

P4SMA6.8CA-M3/5A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1136P4SMA6.8CA-M3/5A Datasheet

Current PartRFQ

P4SMA6.8CA

Taiwan Semiconductor CorporationIn Stock: 17164P4SMA6.8CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4SMA6.8CA-M3/5A is determined by strict alignment of the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 5.8V
• Voltage - Breakdown (Min): within 6.45V to 6.46V range
• Voltage - Clamping (Max) @ Ipp: 10.5V
• Current - Peak Pulse (10/1000µs): 38.1A minimum
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC (SMA)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The P4SMA6.8CA (Taiwan Semiconductor Corporation) meets all substitution criteria with equivalent electrical ratings and identical package specifications.

Parameter Comparison

Engineering Selection Recommendations

The P4SMA6.8CA (Taiwan Semiconductor Corporation) is a direct substitute for the P4SMA6.8CA-M3/5A. Both parts maintain identical clamping voltage, package configuration, and regulatory compliance status. The Taiwan Semiconductor variant provides equivalent or superior peak pulse current capability (40A vs. 38.1A) at the same power dissipation rating.

Selection between these parts should be based on availability, lead time, and procurement requirements. Both parts are active products with full RoHS3 compliance and REACH unaffected status, suitable for equivalent circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the P4SMA6.8CA (Taiwan Semiconductor) be used as a direct replacement for the P4SMA6.8CA-M3/5A?

A: Yes. Both parts share identical voltage ratings (5.8V standoff, 10.5V clamping), equivalent breakdown voltage specifications, and the same DO-214AC (SMA) package. Peak pulse current capability is equivalent or superior in the Taiwan Semiconductor variant.

Q: Are there differences in operating temperature ranges between these parts?

A: The Vishay part operates from -65°C to 150°C (TJ), while the Taiwan Semiconductor part operates from -55°C to 150°C (TJ). For applications requiring operation below -55°C, the Vishay part is required.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications.

Q: What is the significance of the DO-214AC (SMA) package?

A: This surface mount package is standard for TVS diodes in this voltage and current class. Both parts use identical package specifications, ensuring mechanical and thermal compatibility in PCB layouts.

Q: Are there inventory or availability considerations?

A: The Taiwan Semiconductor variant (P4SMA6.8CA) shows higher inventory availability (17,068 pcs vs. 1,031 pcs). Selection may depend on procurement lead time requirements and supply chain constraints.