SEN013DG Equivalent & Substitute Parts Reference

Part Overview

The SEN013DG is a signal disconnect controller manufactured by Power Integrations, designed for power supply management applications. This 8-SOIC surface mount device operates with a supply voltage range of 6V to 16V and delivers 500 µA supply current. The device is classified as discontinued at DiGi Electronics, necessitating identification of functionally compatible alternatives for ongoing design requirements and production continuity.

Substiute Parts

SEN013DG

Power IntegrationsIn Stock: 53193SEN013DG Datasheet

Current PartRFQ

RT8481AGE

Richtek USA Inc.In Stock: 3059RT8481AGE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SEN013DG is determined by alignment of the following critical parameters:

Supply Voltage Compatibility: The substitute part must operate within or encompass the 6V to 16V supply voltage range of the original device.

Supply Current Specification: The substitute must deliver equivalent 500 µA supply current performance.

Mounting and Package Considerations: Surface mount technology is required; however, package form factor may differ (8-SOIC versus alternative surface mount packages) provided PCB layout accommodation is feasible.

Operating Temperature Range: The substitute should maintain functional operation across the -40°C to 105°C temperature envelope or a subset thereof.

Regulatory Compliance: RoHS and REACH compliance status must be maintained for production and distribution requirements.

Application Category: The substitute must function within the Power Management (PMIC) category for power supply controller applications.

The RT8481AGE meets these substitution criteria with documented compatibility in power supply controller applications.

Parameter Comparison

Engineering Selection Recommendations

The RT8481AGE serves as a functional substitute for the discontinued SEN013DG based on the following engineering criteria:

Supply Current Alignment: Both devices specify 500 µA supply current, ensuring equivalent power consumption characteristics in power supply controller applications.

Voltage Supply Range: The RT8481AGE operates across 4.75V to 50V, which encompasses the SEN013DG operating range of 6V to 16V. This extended range provides design flexibility for applications within the original specification window.

Regulatory Compliance: The RT8481AGE maintains ROHS3 compliance and REACH unaffected status, satisfying production and distribution requirements equivalent to the original part.

Product Availability: The RT8481AGE is listed as active with documented inventory, providing supply chain continuity for ongoing production requirements.

Temperature Operating Range Consideration: The RT8481AGE operates to 85°C maximum, compared to the SEN013DG maximum of 105°C. Applications requiring operation above 85°C require thermal design review.

Package Form Factor: The RT8481AGE uses SOT-23-6 packaging versus the 8-SOIC package of the original device. PCB layout modification is required to accommodate the different package footprint and pin configuration.

Frequently Asked Questions (FAQ)

Q: Can the RT8481AGE directly replace the SEN013DG without PCB modification?

A: No. The RT8481AGE uses SOT-23-6 packaging while the SEN013DG uses 8-SOIC packaging. Different footprints and pin counts require PCB layout redesign. Pin function mapping must be verified against both datasheets before implementation.

Q: What is the primary reason for substitution?

A: The SEN013DG is discontinued at DiGi Electronics. The RT8481AGE is an active product with equivalent supply current specification and overlapping voltage operating range, enabling design continuity.

Q: Are there temperature limitations when using the RT8481AGE as a substitute?

A: The RT8481AGE maximum operating temperature is 85°C, compared to 105°C for the SEN013DG. Applications requiring sustained operation above 85°C must evaluate thermal performance under actual operating conditions.

Q: Do both parts meet the same regulatory requirements?

A: Both parts are RoHS compliant and REACH unaffected. The RT8481AGE carries ROHS3 certification, which represents current RoHS compliance standards.

Q: What voltage range differences exist between these parts?

A: The SEN013DG operates 6V to 16V. The RT8481AGE operates 4.75V to 50V. The RT8481AGE range encompasses the original specification, with extended upper and lower limits.

Q: Is supply current performance identical between the two parts?

A: Both devices specify 500 µA supply current, ensuring equivalent power consumption in power supply controller applications.

Q: What design considerations apply to package conversion?

A: The SOT-23-6 package is significantly smaller than 8-SOIC. PCB layout must accommodate the different footprint dimensions, pin spacing, and thermal characteristics. Schematic pin assignments require verification against manufacturer datasheets.