SCD7815BTG Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The SCD7815BTG is a linear voltage regulator IC from onsemi designed for positive fixed 15V output at 1A current capacity in a TO-220-3 package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The regulator provides over-current and over-temperature protection with a maximum input voltage of 35V and typical dropout voltage of 2V at 1A load.

Substiute Parts

SCD7815BTG

onsemiIn Stock: 1008SCD7815BTG Datasheet

Current PartRFQ

MC7815BTG

onsemiIn Stock: 20131MC7815BTG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SCD7815BTG is determined by strict equivalence across the following critical parameters:

• Output voltage: 15V fixed
• Output current capacity: 1A minimum
• Input voltage rating: 35V maximum
• Package type: TO-220-3 through-hole
• Operating temperature range: -40°C to 125°C
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The MC7815BTG qualifies as a direct substitute based on identical electrical specifications and package configuration. Both devices maintain the same output voltage, current rating, input voltage maximum, dropout characteristics, and PSRR performance. The primary distinction is product status: MC7815BTG is active production, whereas SCD7815BTG is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The MC7815BTG is the appropriate substitute for the obsolete SCD7815BTG. Both devices are manufactured by onsemi and maintain identical electrical and mechanical specifications. The MC7815BTG is in active production status, ensuring long-term availability and supply chain continuity. Both parts meet ROHS3 compliance and REACH requirements, supporting current regulatory standards for electronic component procurement.

Selection of MC7815BTG over SCD7815BTG is based on product lifecycle status and procurement viability rather than functional differences. The electrical performance, thermal characteristics, and package configuration are equivalent across both devices.

Frequently Asked Questions (FAQ)

Q: Can MC7815BTG directly replace SCD7815BTG in existing designs?

A: Yes. The MC7815BTG is electrically and mechanically equivalent to SCD7815BTG. Both devices provide identical 15V fixed output at 1A, operate across -40°C to 125°C, and use the TO-220-3 package. No circuit modifications are required.

Q: Why is SCD7815BTG listed as obsolete?

A: Product obsolescence reflects onsemi's lifecycle management. The MC7815BTG remains in active production and provides the same functionality, making it the recommended choice for new designs and ongoing procurement.

Q: Are there any differences in protection features between these parts?

A: SCD7815BTG includes over-current and over-temperature protection. MC7815BTG includes over-temperature and short-circuit protection. Both provide thermal protection across the operating range.

Q: What is the significance of the TO-220-3 package?

A: The TO-220-3 package is a through-hole configuration with three leads (input, ground, output). This package type is standard for linear voltage regulators and ensures mechanical and electrical compatibility between SCD7815BTG and MC7815BTG in PCB designs.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both SCD7815BTG and MC7815BTG are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.