SCD317BTG Equivalent & Substitute Parts

Part Overview

The SCD317BTG is a linear voltage regulator IC manufactured by onsemi, classified as a Power Management (PMIC) component. It is designed to deliver 1.5A output current in a TO-220 package configuration. The device has reached obsolete product status, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where this regulator topology is required.

Substiute Parts

SCD317BTG

onsemiIn Stock: 880SCD317BTG Datasheet

Current PartRFQ

LM317BTG

onsemiIn Stock: 100204LM317BTG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LM317BTG qualifies as a direct substitute for the SCD317BTG based on the following alignment criteria:

Matching Parameters:

• Manufacturer: Both manufactured by onsemi
• Output Current Rating: Both rated at 1.5A
• Package Type: Both use TO-220-3 package
• RoHS Compliance: Both ROHS3 Compliant
• REACH Status: Both REACH Unaffected
• ECCN Classification: Both classified as EAR99
• HTSUS Code: Both 8542.39.0001

Functional Equivalence: The LM317BTG is an active, production-status linear voltage regulator that maintains the same current handling capacity and thermal package as the obsolete SCD317BTG, enabling direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The LM317BTG is the primary substitute for the obsolete SCD317BTG. Selection is based on:

• Product Status Alignment: The LM317BTG maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both parts maintain identical RoHS3 and REACH compliance certifications, satisfying regulatory requirements for new designs and legacy system support.
• Package and Current Rating Equivalence: Identical TO-220 package and 1.5A output current rating enable direct PCB-level substitution without design modification.
• Manufacturer Consistency: Both parts are manufactured by onsemi, maintaining design heritage and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the LM317BTG be used as a direct replacement for the SCD317BTG?

A: Yes. The LM317BTG is functionally equivalent based on matching output current rating (1.5A), identical TO-220 package configuration, and equivalent regulatory compliance status. No PCB modifications are required.

Q: What is the primary reason for substitution?

A: The SCD317BTG has reached obsolete product status. The LM317BTG is an active production alternative from the same manufacturer that maintains all critical electrical and mechanical parameters.

Q: Are there any compliance concerns when substituting these parts?

A: No. Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for both legacy system maintenance and new product designs.

Q: Does the TO-220-3 package of the LM317BTG differ from the TO-220 package of the SCD317BTG?

A: The TO-220-3 designation indicates a three-lead TO-220 package, which is the standard configuration for linear voltage regulators in this class. This is compatible with existing TO-220 PCB footprints.

Q: What inventory status should be considered when sourcing?

A: The LM317BTG has significantly higher inventory availability (100,099 pieces) compared to the obsolete SCD317BTG (869 pieces), making it the practical choice for ongoing production and support requirements.