1N6061 Equivalent & Substitute Parts

Part Overview

The 1N6061 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features a 66V reverse standoff voltage with a 118V maximum clamping voltage and 12.7A peak pulse current capability in a through-hole DO-13 package. The 1N6061 is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting the same electrical protection requirements.

Substiute Parts

1N6061

Microchip TechnologyIn Stock: 8561N6061 Datasheet

Current PartRFQ

AK3-066C-BP

Micro Commercial CoIn Stock: 1009AK3-066C-BP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N6061 is determined by the following critical electrical and mechanical parameters:

Voltage Parameters: The reverse standoff voltage (66V typical) and breakdown voltage (73.8V minimum) establish the protection threshold. Substitute parts must maintain the same 66V standoff specification to ensure activation at equivalent overvoltage conditions.

Current and Power Handling: The 12.7A peak pulse current and 1500W peak pulse power define the transient energy dissipation capability. Substitute parts must support equivalent or greater current and power ratings to maintain protection effectiveness.

Bidirectional Configuration: Single-channel bidirectional operation is required for general-purpose TVS applications.

Zener Type: The diode type classification must remain consistent.

Through-Hole Mounting: Physical mounting compatibility requires through-hole configuration.

Temperature Range: Operating temperature limits (-55°C to 175°C) establish the thermal operating envelope.

The AK3-066C-BP from Micro Commercial Co qualifies as a substitute based on matching the 66V reverse standoff voltage, single bidirectional channel configuration, Zener type classification, and through-hole mounting. While the AK3-066C-BP exhibits different clamping voltage (125V versus 118V) and peak pulse current specifications (3000A versus 12.7A), these parameters remain within acceptable substitution criteria for general-purpose TVS applications where the primary protection threshold is the standoff voltage.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AK3-066C-BP

The AK3-066C-BP is the designated substitute for the discontinued 1N6061. Both components share the critical 66V reverse standoff voltage specification, ensuring equivalent overvoltage protection activation thresholds. The AK3-066C-BP maintains active product status with current manufacturing availability, eliminating supply chain discontinuation risk.

Compliance Considerations: The AK3-066C-BP achieves ROHS3 compliance, whereas the 1N6061 is non-compliant. For applications subject to RoHS regulatory requirements, the AK3-066C-BP provides compliant component selection.

Temperature Operating Range: The AK3-066C-BP operates across -55°C to 150°C, compared to the 1N6061's -55°C to 175°C range. Applications requiring operation above 150°C junction temperature require evaluation of thermal management or alternative component selection.

Package Configuration: The AK3-066C-BP utilizes an axial, right-angle bend package (24.15mm center) versus the 1N6061's DO-13 package. Physical board layout modifications may be necessary to accommodate the different package geometry.

Frequently Asked Questions (FAQ)

Q: Can the AK3-066C-BP directly replace the 1N6061 without circuit modification?

A: The AK3-066C-BP provides electrical substitution based on matching 66V reverse standoff voltage and single-channel bidirectional Zener configuration. However, package geometry differs (axial right-angle bend versus DO-13), requiring physical board layout evaluation. Verify PCB footprint compatibility before implementation.

Q: What is the significance of the different peak pulse current ratings (12.7A versus 3000A)?

A: The AK3-066C-BP exhibits substantially higher peak pulse current capability (3000A at 8/20µs versus 12.7A at 10/1000µs). This represents enhanced transient energy dissipation capacity. For applications where the original 1N6061 was selected based on 12.7A current requirements, the AK3-066C-BP provides equivalent or superior protection. Applications with specific current limitations should evaluate whether the higher rating introduces design constraints.

Q: How do the clamping voltage differences (118V versus 125V) affect circuit protection?

A: Both components maintain the same 66V reverse standoff voltage, which determines the overvoltage threshold at which protection activates. The clamping voltage represents the maximum voltage across the diode during transient suppression. The 7V difference (118V to 125V) falls within typical design margins for general-purpose TVS applications. Verify that downstream circuit components tolerate the 125V maximum clamping level.

Q: Is the AK3-066C-BP suitable for applications requiring operation above 150°C?

A: The AK3-066C-BP maximum operating temperature is 150°C junction temperature, compared to the 1N6061's 175°C rating. Applications with thermal requirements exceeding 150°C must evaluate alternative component options or implement enhanced thermal management to maintain junction temperature within specified limits.

Q: What are the RoHS compliance implications of substitution?

A: The 1N6061 is RoHS non-compliant, while the AK3-066C-BP achieves ROHS3 compliance. For applications subject to RoHS regulatory requirements (EU Directive 2011/65/EU and amendments), the AK3-066C-BP provides compliant component selection. Existing designs using the 1N6061 in non-RoHS applications may substitute without regulatory impact.

Q: Are there inventory or lead-time advantages to using the AK3-066C-BP?

A: The 1N6061 is discontinued at DiGi Electronics with no ongoing manufacturing. The AK3-066C-BP maintains active product status with current manufacturing and distribution. Component availability and lead-time characteristics favor the AK3-066C-BP for new designs and replenishment orders.