SCD7805CTG Equivalent & Substitute Parts

Part Overview

The SCD7805CTG 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, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part delivers regulated power with integrated over-current and over-temperature protection suitable for through-hole mounting in power management circuits.

Substiute Parts

SCD7805CTG

onsemiIn Stock: 836SCD7805CTG Datasheet

Current PartRFQ

MC7805CTG

onsemiIn Stock: 55161MC7805CTG Datasheet

DirectRFQ

SCD7805ACTG

onsemiIn Stock: 1501SCD7805ACTG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SCD7805CTG is determined by strict equivalence across the following critical parameters:

• Output voltage: 5V fixed
• Output current capacity: 1A minimum
• Input voltage rating: 35V maximum
• Package type: TO-220-3 through-hole
• Output configuration: Positive fixed regulator
• Protection features: Over-current and over-temperature capability
• Operating temperature range: 0°C ~ 125°C
• RoHS3 compliance

Two substitute parts meet these criteria: MC7805CTG (direct manufacturer equivalent, active status) and SCD7805ACTG (parametric equivalent, obsolete status).

Parameter Comparison

Engineering Selection Recommendations

MC7805CTG is the primary substitute for SCD7805CTG. Both parts are manufactured by onsemi with identical electrical specifications and package configuration. MC7805CTG holds active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

SCD7805ACTG serves as a secondary parametric equivalent. This part shares all critical electrical and mechanical specifications with SCD7805CTG but carries obsolete status, limiting its suitability for new designs or long-term production applications.

Frequently Asked Questions (FAQ)

Q: Can MC7805CTG directly replace SCD7805CTG in existing designs?

A: Yes. MC7805CTG and SCD7805CTG are electrically and mechanically equivalent across all specified parameters. Both deliver 5V fixed output at 1A with identical dropout voltage, PSRR, protection features, and operating temperature range. The TO-220-3 package pinout is identical, enabling direct board-level substitution.

Q: What is the difference between SCD7805CTG and SCD7805ACTG?

A: Both parts are parametrically equivalent with identical electrical specifications and TO-220-3 packaging. The primary difference is packaging format: SCD7805CTG uses standard packaging while SCD7805ACTG is supplied in tube packaging. Both are obsolete status parts.

Q: Why is MC7805CTG preferred over SCD7805ACTG?

A: MC7805CTG maintains active product status with significantly higher inventory availability (55,100 pcs vs. 1,452 pcs), ensuring reliable supply for production applications. Active status also indicates ongoing manufacturer support and quality assurance.

Q: Are there any protection feature differences between these parts?

A: SCD7805CTG and SCD7805ACTG both include over-current and over-temperature protection. MC7805CTG includes over-temperature and short-circuit protection. All three parts provide adequate thermal and electrical safeguarding for standard 5V regulator applications.

Q: Can these parts be used interchangeably in new product designs?

A: MC7805CTG is the appropriate choice for new designs due to its active product status. SCD7805CTG and SCD7805ACTG are obsolete and should be reserved for legacy system maintenance or replacement applications only.