AS7806AT-E1 Linear Voltage Regulator - Equivalent & Substitute Parts

Part Overview

The AS7806AT-E1 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 6V output applications with 1A current capacity in a TO-220-3 package. This device provides regulated power supply functionality with integrated over-temperature and short-circuit protection.

The AS7806AT-E1 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

AS7806AT-E1

Diodes IncorporatedIn Stock: 23297AS7806AT-E1 Datasheet

Current PartRFQ

MC7806CT-BP

Micro Commercial CoIn Stock: 1802MC7806CT-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AS7806AT-E1 is determined by the following critical parameters:

• Fixed output voltage of 6V
• Output current rating of 1A minimum
• TO-220-3 package compatibility
• Positive output configuration
• Over-temperature and short-circuit protection
• Through-hole mounting type
• RoHS3 compliance

The MC7806CT-BP from Micro Commercial Co meets these substitution criteria. Both devices share identical output voltage, current rating, package type, and protection features. Electrical performance parameters remain within acceptable tolerances for direct substitution in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The MC7806CT-BP is a direct substitute for the AS7806AT-E1 based on functional equivalence and compliance alignment. Both devices are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The MC7806CT-BP offers the advantage of active product status, ensuring continued availability and manufacturing support. The substitute part demonstrates improved electrical performance with higher maximum input voltage (30V vs 26V) and superior PSRR (75dB vs 65dB), making it suitable for applications requiring enhanced noise rejection.

The operating temperature range difference (-40°C to 125°C for AS7806AT-E1 versus 0°C to 125°C for MC7806CT-BP) should be evaluated against specific application requirements. Applications requiring operation below 0°C require confirmation of alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the MC7806CT-BP directly replace the AS7806AT-E1 in existing designs?

A: Yes. Both devices provide identical 6V fixed output at 1A current capacity in TO-220-3 packages with matching protection features. Pin configuration and electrical performance are compatible for direct substitution in standard applications operating within 0°C to 125°C.

Q: What is the primary difference between these two regulators?

A: The MC7806CT-BP has a higher maximum input voltage rating (30V vs 26V) and superior power supply rejection ratio (75dB vs 65dB). The AS7806AT-E1 supports extended low-temperature operation to -40°C, while the MC7806CT-BP operates from 0°C minimum.

Q: Are there package compatibility concerns?

A: No. Both devices use TO-220-3 packages with identical pin assignments and mechanical dimensions, ensuring direct board-level compatibility without layout modifications.

Q: Why is the AS7806AT-E1 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The MC7806CT-BP, with active product status, provides continued supply chain access for equivalent functionality.

Q: What compliance certifications apply to both parts?

A: Both the AS7806AT-E1 and MC7806CT-BP are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.