AP1682MTR-G1 Equivalent & Substitute Parts

Part Overview

The AP1682MTR-G1 is an LED Driver IC manufactured by Diodes Incorporated, designed for AC DC offline switching applications with a single output configuration. This device operates within a 9V to 21V supply voltage range and is housed in an 8-SOIC surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

AP1682MTR-G1

Diodes IncorporatedIn Stock: 25306AP1682MTR-G1 Datasheet

Current PartRFQ

AP1682MTR-G1

Diodes IncorporatedIn Stock: 25306AP1682MTR-G1 Datasheet

Parametric EquivalentRFQ

CPC9909NTR

IXYS Integrated Circuits DivisionIn Stock: 1848CPC9909NTR Datasheet

MFR RecommendedRFQ

LNK404EG

Power IntegrationsIn Stock: 59240LNK404EG Datasheet

MFR RecommendedRFQ

LYT2004K-TL

Power IntegrationsIn Stock: 4456LYT2004K-TL Datasheet

MFR RecommendedRFQ

MP4068GS-Z

Monolithic Power Systems Inc.In Stock: 276717MP4068GS-Z Datasheet

MFR RecommendedRFQ

RT8402GJ6

Richtek USA Inc.In Stock: 3650RT8402GJ6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AP1682MTR-G1 is determined by the following critical parameters:

• Device Type: AC DC Offline Switcher topology
• Number of Outputs: Single output configuration
• Package Compatibility: 8-SOIC surface mount form factor (primary consideration for PCB layout compatibility)
• Supply Voltage Range: Minimum 9V to maximum 21V operational capability
• Mounting Type: Surface mount technology
• Compliance: ROHS3 compliance and RoHS certification status

Substitute parts must maintain compatibility across these core electrical and mechanical specifications. Parts with different package types, supply voltage ranges outside the specified window, or fundamentally different topologies are not direct substitutes despite functional similarities in other parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Package-Compatible Substitutes (8-SOIC Surface Mount)

RT8402GJ6 and MP4068GS-Z maintain the 8-SOIC package form factor, enabling direct PCB layout compatibility without redesign. Both are surface mount devices. RT8402GJ6 is obsolete with a supply voltage range of 10V to 30V, overlapping the AP1682MTR-G1 specification window. MP4068GS-Z is active with a narrower supply voltage range (4.1V to 5V), which falls outside the AP1682MTR-G1 operating window and is not suitable for direct substitution in applications requiring 9V to 21V operation.

CPC9909NTR maintains 8-SOIC packaging and is active. Its supply voltage range (8V to 550V) encompasses the AP1682MTR-G1 specification, making it electrically compatible. This part is recommended for new designs and production continuity where 8-SOIC package compatibility is required.

Alternative Topology Substitutes (Different Packages)

LYT2004K-TL, LNK404EG, and CPC9909NTR employ different topologies or package configurations. LYT2004K-TL uses a 12-ESOP package (Flyback topology), and LNK404EG uses a through-hole eSIP-7C package (Flyback topology with internal switch). These require PCB redesign and are suitable only when package constraints can be accommodated.

Compliance and Availability

All substitute parts maintain ROHS3 or RoHS compliance. Active status parts (MP4068GS-Z, LYT2004K-TL, LNK404EG, CPC9909NTR) offer superior long-term availability compared to obsolete alternatives. For production continuity, prioritize active parts with compatible electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can RT8402GJ6 directly replace AP1682MTR-G1 on existing PCBs?

A: RT8402GJ6 shares the 8-SOIC package form factor and surface mount configuration, enabling direct PCB placement without layout modification. However, RT8402GJ6 is also obsolete. Verify supply voltage compatibility (10V to 30V range) against your application requirements before implementation.

Q: Why is MP4068GS-Z listed as a substitute if its supply voltage range (4.1V to 5V) differs from AP1682MTR-G1 (9V to 21V)?

A: MP4068GS-Z is included in the substitute list based on the provided input data. However, its supply voltage range does not overlap with the AP1682MTR-G1 specification window. This part is not suitable for applications requiring 9V to 21V operation and should not be selected for direct substitution in such designs.

Q: What is the primary advantage of CPC9909NTR as a substitute?

A: CPC9909NTR maintains 8-SOIC surface mount packaging for direct PCB compatibility, operates within an extended supply voltage range (8V to 550V) that encompasses the AP1682MTR-G1 specification, and holds active product status ensuring ongoing availability and manufacturing support.

Q: Can LNK404EG be used as a substitute despite its different package type?

A: LNK404EG uses a through-hole eSIP-7C package, requiring PCB redesign and different mounting procedures compared to the surface mount 8-SOIC AP1682MTR-G1. Substitution is possible only if PCB layout modifications are acceptable. This part is active and RoHS compliant, making it suitable for new designs where package constraints can be accommodated.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain either ROHS3 or RoHS compliance, meeting environmental and regulatory requirements equivalent to the AP1682MTR-G1.