AP1682EMTR-G1 Equivalent & Substitute Parts

Part Overview

The AP1682EMTR-G1 is an LED Driver IC manufactured by Diodes Incorporated, designed for AC DC offline switching applications with a single output configuration. This component operates within a 9V to 21V supply voltage range and is housed in an 8-SOIC package suitable for surface mount applications in lighting systems.

The AP1682EMTR-G1 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for legacy lighting applications.

Substiute Parts

AP1682EMTR-G1

Diodes IncorporatedIn Stock: 24083AP1682EMTR-G1 Datasheet

Current PartRFQ

AL1665S-13

Diodes IncorporatedIn Stock: 17717AL1665S-13 Datasheet

MFR RecommendedRFQ

AP1682MTR-G1

Diodes IncorporatedIn Stock: 25306AP1682MTR-G1 Datasheet

Parametric EquivalentRFQ

NCL30186DDR2G

onsemiIn Stock: 7224NCL30186DDR2G Datasheet

MFR RecommendedRFQ

RT7306GS

Richtek USA Inc.In Stock: 1643RT7306GS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP1682EMTR-G1 are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Type: AC DC Offline Switcher
• Number of Outputs: 1
• Voltage Supply Range: Minimum 9V, Maximum 21V (or overlapping range)
• Package / Case: 8-SOIC or equivalent 8-pin surface mount package
• Mounting Type: Surface Mount
• Applications: Lighting

Substitution Logic: Parts are grouped as equivalent or substitute based on matching the core supply voltage envelope, maintaining single-output topology, and preserving the 8-pin SOIC package footprint. Active product status substitutes are prioritized for new designs, while obsolete equivalents maintain pin-for-pin compatibility with existing layouts.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible): The AP1682MTR-G1 serves as a parametric equivalent with identical supply voltage specifications (9V to 21V) and matching 8-SOIC package. Both parts carry Obsolete status and maintain equivalent MSL ratings. This part is suitable for direct PCB substitution in existing designs.

For Active Product Substitution: The AL1665S-13 is the manufacturer-recommended substitute from Diodes Incorporated with Active product status. It operates within an overlapping supply voltage range (8.5V to 21.8V), maintains the 8-SOIC package footprint, and offers improved MSL rating (1 vs. 3). This part is recommended for new production and design updates.

The RT7306GS from Richtek USA Inc. is an Active alternative with extended supply voltage range (11V to 34V) and elevated operating temperature capability (-40°C to 125°C). The 8-SOIC package maintains footprint compatibility. This part is suitable for applications requiring higher supply voltage tolerance.

For Extended Capability Requirements: The NCL30186DDR2G from onsemi is an Active substitute with expanded supply voltage range (8.8V to 25.5V) and higher operating temperature rating (-40°C to 125°C). This part uses a 10-SOP package, which requires PCB layout modification and is not pin-compatible. Selection of this part is appropriate only when design flexibility permits package change and enhanced thermal performance is required.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH Unaffected status, consistent with the original AP1682EMTR-G1. Selection between Active and Obsolete alternatives should prioritize Active products for new designs to ensure long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the AL1665S-13 be used as a direct replacement for the AP1682EMTR-G1? A: Yes. The AL1665S-13 maintains the same 8-SOIC package footprint and operates within a compatible supply voltage range (8.5V to 21.8V encompasses the original 9V to 21V specification). Pin-for-pin compatibility is preserved. The AL1665S-13 carries Active product status, making it the preferred choice for ongoing production.

Q: What is the primary difference between the AP1682MTR-G1 and AP1682EMTR-G1? A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications (9V to 21V supply, single output, AC DC offline switcher topology). The primary difference is the package designation: AP1682MTR-G1 uses 8-SOIC while AP1682EMTR-G1 uses 8-SO. Both carry Obsolete status. The AP1682MTR-G1 offers improved MSL rating (1 vs. 3).

Q: Why is the NCL30186DDR2G listed as a substitute if it uses a 10-SOP package? A: The NCL30186DDR2G is included as a functional substitute for applications where PCB layout modification is acceptable. It provides extended supply voltage range (8.8V to 25.5V) and higher operating temperature capability (-40°C to 125°C). This part is suitable only when design flexibility permits package change and enhanced performance is required.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts (AL1665S-13, AP1682MTR-G1, NCL30186DDR2G, and RT7306GS) maintain ROHS3 compliance and REACH Unaffected status, consistent with the original AP1682EMTR-G1.

Q: Which substitute part should be selected for new product designs? A: The AL1665S-13 is the manufacturer-recommended choice for new designs. It carries Active product status, maintains pin-for-pin compatibility with the 8-SOIC package, and offers improved MSL rating (1 vs. 3). The RT7306GS is an alternative for applications requiring extended supply voltage range (11V to 34V).

Q: What is the significance of the MSL rating difference between the AP1682EMTR-G1 and its substitutes? A: The AP1682EMTR-G1 carries MSL 3 (168 Hours), indicating moisture sensitivity requiring controlled storage and handling. The AL1665S-13, AP1682MTR-G1, and NCL30186DDR2G carry MSL 1 (Unlimited), eliminating moisture-related storage constraints. The RT7306GS maintains MSL 3 (168 Hours), matching the original part's moisture sensitivity profile.