1N6041 Equivalent & Substitute Parts

Part Overview

The 1N6041 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This through-hole component features a 9V reverse standoff voltage with a 17.3V maximum clamping voltage and 87A peak pulse current capability. The device is classified as Active product status and operates across the temperature range of -55°C to 175°C. Alternative equivalent parts are necessary when addressing specific packaging requirements, compliance certifications, or inventory availability constraints while maintaining functional compatibility within the application circuit.

Substiute Parts

1N6041

Microchip TechnologyIn Stock: 9401N6041 Datasheet

Current PartRFQ

SA9.0CA

Taiwan Semiconductor CorporationIn Stock: 8331SA9.0CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N6041 with the SA9.0CA is determined by the following critical electrical parameters that must remain compatible:

Voltage Parameters: Both devices maintain identical reverse standoff voltage (9V typical) and comparable breakdown voltage specifications (10.8V minimum for 1N6041; 10V minimum for SA9.0CA). These parameters ensure the TVS diode activates at the same circuit protection threshold.

Thermal Operating Range: Both parts operate across -55°C to 175°C, ensuring thermal compatibility across all application environments.

Bidirectional Configuration: Both devices feature single bidirectional channel architecture for symmetric transient suppression.

Mounting Technology: Both components utilize through-hole mounting, maintaining mechanical compatibility with existing PCB designs.

Functional Classification: Both are classified as Zener-type TVS diodes for general-purpose transient voltage suppression.

Differences Requiring Evaluation: The SA9.0CA exhibits reduced peak pulse current (34A versus 87A) and lower peak pulse power (500W versus 1500W). The SA9.0CA is packaged in DO-204AC (DO-15) axial format, whereas the 1N6041 uses DO-13 packaging. The SA9.0CA carries RoHS3 compliance, while the 1N6041 is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

1N6041 Selection Criteria:

The 1N6041 is appropriate for applications requiring maximum transient energy dissipation capacity. The 87A peak pulse current and 1500W peak pulse power rating provide superior protection for high-energy transient events. This device is suitable for designs where RoHS compliance is not a contractual requirement and where the DO-13 package footprint is already established in the PCB layout.

SA9.0CA Selection Criteria:

The SA9.0CA is appropriate for applications where RoHS3 compliance is mandatory or preferred. This device is suitable for designs where transient energy levels are lower (peak pulse current ≤34A, peak pulse power ≤500W) and where the DO-204AC (DO-15) axial package footprint is compatible with the PCB design. The SA9.0CA provides equivalent voltage protection thresholds while meeting modern environmental compliance standards.

Compliance Considerations:

The SA9.0CA carries RoHS3 compliance certification, making it the required selection for applications subject to RoHS directives or customer specifications mandating RoHS compliance. The 1N6041, classified as RoHS non-compliant, is restricted to applications where such compliance is not required.

Both devices maintain REACH Unaffected status and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Frequently Asked Questions (FAQ)

Q: Can the SA9.0CA directly replace the 1N6041 in all applications?

A: Direct replacement is possible only when the application's transient energy requirements do not exceed the SA9.0CA specifications (34A peak pulse current, 500W peak pulse power). The SA9.0CA's lower current and power ratings restrict its use to lower-energy transient environments. PCB layout modifications are required due to package differences (DO-13 versus DO-204AC).

Q: What are the package differences between these two devices?

A: The 1N6041 uses DO-13 packaging, while the SA9.0CA uses DO-204AC (DO-15) axial packaging. Both are through-hole components, but the physical dimensions and lead configurations differ. PCB footprint redesign is necessary when switching between these packages.

Q: How do the voltage parameters compare?

A: Both devices share a 9V reverse standoff voltage. The 1N6041 specifies 10.8V minimum breakdown voltage, while the SA9.0CA specifies 10V minimum. The 1N6041 clamps at 17.3V maximum, while the SA9.0CA clamps at 15.4V maximum. These differences result in slightly different protection thresholds and clamping characteristics.

Q: Which device should be selected for RoHS-compliant applications?

A: The SA9.0CA is RoHS3 compliant and must be selected for applications subject to RoHS directives or customer RoHS requirements. The 1N6041 is RoHS non-compliant and cannot be used in such applications.

Q: Are there thermal operating range differences?

A: No. Both devices operate across the identical temperature range of -55°C to 175°C junction temperature, ensuring thermal compatibility across all standard industrial and commercial environments.

Q: What is the impact of the current rating difference?

A: The 1N6041 supports 87A peak pulse current versus 34A for the SA9.0CA. Applications experiencing transient currents exceeding 34A require the 1N6041. Lower-energy transient environments can utilize the SA9.0CA without performance degradation.