AZ317HTR-E1 Equivalent & Substitute Parts

Part Overview

The AZ317HTR-E1 is a linear voltage regulator IC with positive adjustable output, rated for 1A current output in a SOT-223-3 surface mount package. Manufactured by Diodes Incorporated, this component is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production planning, and system reliability in applications requiring positive adjustable linear regulation.

Substiute Parts

AZ317HTR-E1

Diodes IncorporatedIn Stock: 7199AZ317HTR-E1 Datasheet

Current PartRFQ

LMS8117AMP-ADJ/NOPB

Texas InstrumentsIn Stock: 6824LMS8117AMP-ADJ/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AZ317HTR-E1 is determined by strict alignment of the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Number of regulators (1)
• Maximum input voltage (15V)
• Minimum output voltage (1.25V)
• Maximum output voltage (13.7V or higher)
• Output current rating (1A)
• Package type (SOT-223)
• Operating temperature range (0°C ~ 125°C)
• Protection features (Over Current, Over Temperature)

The LMS8117AMP-ADJ/NOPB from Texas Instruments meets all these criteria and qualifies as a direct substitute. Both components share identical functional specifications, electrical ratings, and package compatibility, enabling direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The LMS8117AMP-ADJ/NOPB is the qualified substitute for the obsolete AZ317HTR-E1. Selection is based on the following factors:

• Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements.
• The LMS8117AMP-ADJ/NOPB maintains active product status, ensuring long-term availability and supply chain stability.
• Electrical parameters are equivalent or superior: the Texas Instruments part offers marginally lower dropout voltage (1.25V vs. 1.3V) and identical PSRR performance.
• Maximum output voltage specification of the substitute (13.8V) exceeds the original part (13.7V), providing enhanced operational margin.
• Package compatibility is confirmed: both use SOT-223 surface mount configuration with TO-261-4 and TO-261AA case options.
• Operating temperature range and protection features are identical, ensuring functional equivalence in thermal and fault conditions.

Frequently Asked Questions (FAQ)

Q: Can the LMS8117AMP-ADJ/NOPB be used as a direct replacement for the AZ317HTR-E1?

A: Yes. Both components share identical output configuration, adjustability, current rating, input/output voltage specifications, package type, and protection features. Direct substitution is supported without circuit modification.

Q: Are there differences in dropout voltage between these parts?

A: The LMS8117AMP-ADJ/NOPB has a maximum dropout voltage of 1.25V @ 1A, compared to 1.3V @ 1A for the AZ317HTR-E1. This represents a marginal improvement and does not affect compatibility.

Q: Do both parts use the same package?

A: Yes. Both components use the SOT-223 surface mount package with TO-261-4 and TO-261AA case designations. PCB footprints and pin configurations are identical.

Q: What is the significance of the AZ317HTR-E1 being obsolete?

A: Obsolete status indicates the part is no longer manufactured by Diodes Incorporated. The LMS8117AMP-ADJ/NOPB maintains active status, ensuring continued availability and support from Texas Instruments.

Q: Are regulatory certifications equivalent?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for industrial and commercial applications.

Q: Can output voltage adjustment be configured identically on both parts?

A: Yes. Both components are positive adjustable regulators with identical minimum output voltage (1.25V) and maximum output voltage specifications within the 13.7V to 13.8V range. External resistor networks for voltage adjustment are interchangeable.