SCD7805BTG Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The SCD7805BTG is a linear voltage regulator IC manufactured by onsemi, designed to provide a fixed positive 5V output at 1A current capacity in a TO-220-3 package. This device is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and procurement needs. The SCD7805BTG delivers regulated power management suitable for applications requiring stable 5V rails with moderate current demands.

Substiute Parts

SCD7805BTG

onsemiIn Stock: 1341SCD7805BTG Datasheet

Current PartRFQ

MC7805BTG

onsemiIn Stock: 175482MC7805BTG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SCD7805BTG is determined by strict equivalence across the following critical parameters:

• Output voltage: Fixed 5V
• Output current capacity: 1A minimum
• Input voltage rating: 35V maximum
• Package configuration: TO-220-3 through-hole
• Voltage dropout characteristics: 2V @ 1A (Typ)
• Operating temperature range: -40°C ~ 125°C
• Output configuration: Positive fixed regulator
• Regulatory compliance: ROHS3 Compliant

The MC7805BTG meets all specified parameters and is classified as an active product, making it a direct functional equivalent for the obsolete SCD7805BTG.

Parameter Comparison

Engineering Selection Recommendations

The MC7805BTG is the direct substitute for the obsolete SCD7805BTG. Both devices are manufactured by onsemi and share identical electrical specifications, output ratings, and thermal operating ranges. The MC7805BTG maintains active product status with established supply chain availability, ensuring long-term procurement viability. Both parts comply with ROHS3 and REACH regulatory requirements, supporting equivalent environmental and compliance certifications. The TO-220-3 package configuration is identical, permitting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the MC7805BTG directly replace the SCD7805BTG in existing designs?

A: Yes. The MC7805BTG is electrically and mechanically equivalent to the SCD7805BTG across all specified parameters, including output voltage, current capacity, input voltage rating, dropout voltage, operating temperature range, and package configuration.

Q: What is the primary reason for substitution?

A: The SCD7805BTG is classified as obsolete. The MC7805BTG is an active product from the same manufacturer with identical specifications, providing continued design support and supply availability.

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

A: The SCD7805BTG specifies Over Current and Over Temperature protection. The MC7805BTG specifies Over Temperature and Short Circuit protection. Both provide thermal protection; the protection feature set differs in implementation but maintains equivalent functional safety.

Q: Is the TO-220-3 package identical for both parts?

A: Yes. Both the SCD7805BTG and MC7805BTG use the TO-220-3 through-hole package configuration, permitting direct PCB substitution without design changes.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the SCD7805BTG and MC7805BTG are ROHS3 Compliant and REACH Unaffected, meeting equivalent environmental and regulatory requirements.

Q: What is the quiescent current specification for the MC7805BTG?

A: The MC7805BTG specifies a quiescent current (Iq) of 8 mA. This parameter was not provided for the SCD7805BTG in the available data.