LNK362DN Equivalent & Substitute Parts

Part Overview

The LNK362DN is an offline switch flyback converter IC manufactured by Power Integrations, part of the LinkSwitch®-XT series. This device integrates a 700V breakdown voltage internal switch with comprehensive fault protection for isolated flyback topology applications operating at 132kHz switching frequency with 2.8W power capability.

The LNK362DN is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. The substitute part maintains identical electrical and mechanical specifications while offering active product status and improved supply chain availability.

Substiute Parts

LNK362DN

Power IntegrationsIn Stock: 1433LNK362DN Datasheet

Current PartRFQ

LNK362DN-TL

Power IntegrationsIn Stock: 105169LNK362DN-TL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LNK362DN is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Identical topology (Flyback)
• Identical output isolation (Isolated)
• Identical voltage breakdown rating (700V)
• Identical switching frequency (132kHz)
• Identical power rating (2.8W)
• Identical duty cycle (60%)
• Identical fault protection features (Current Limiting, Open Loop, Over Temperature, Short Circuit)
• Identical operating temperature range (-40°C ~ 150°C TJ)

Mechanical Equivalence Criteria:

• Identical package type (8-SOIC, 0.154" width, 7 leads)
• Identical mounting type (Surface Mount)
• Identical supplier device package designation (SO-8C)

Compliance Equivalence Criteria:

• RoHS Compliant status
• MSL Rating 1 (Unlimited)
• REACH Unaffected status
• ECCN EAR99 classification

The LNK362DN-TL qualifies as a direct substitute based on complete parameter alignment across all electrical, mechanical, and compliance specifications. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

LNK362DN-TL as Direct Substitute:

The LNK362DN-TL is a direct functional and mechanical equivalent to the LNK362DN. All electrical parameters, package specifications, and compliance certifications are identical. Selection of LNK362DN-TL is appropriate for:

• New design implementations requiring LinkSwitch®-XT series offline flyback converters
• Replacement of discontinued LNK362DN units in existing applications
• Production environments requiring Tape & Reel packaging format
• Applications requiring active product status and extended supply chain availability

Compliance Considerations:

Both parts maintain RoHS Compliance, MSL Rating 1 (Unlimited moisture sensitivity), REACH Unaffected status, and ECCN EAR99 classification. No compliance barriers exist for substitution.

Packaging Format Distinction:

The LNK362DN-TL is supplied in Tape & Reel format, suitable for automated assembly processes. The original LNK362DN was supplied in bulk packaging. This distinction affects procurement and handling procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can LNK362DN-TL be used as a direct replacement for LNK362DN in existing designs?

A: Yes. The LNK362DN-TL is electrically and mechanically identical to the LNK362DN. All electrical parameters, switching characteristics, fault protection features, package dimensions, and lead configurations are equivalent. Direct substitution is supported without circuit modification.

Q: What is the difference between LNK362DN and LNK362DN-TL?

A: The primary differences are packaging format and product status. The LNK362DN-TL is supplied in Tape & Reel (TR) format for automated assembly, while the LNK362DN was supplied in bulk packaging. The LNK362DN-TL maintains active product status with significantly higher inventory availability (105100 Pcs versus 1353 Pcs).

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate at identical switching frequency (132kHz), power rating (2.8W), duty cycle (60%), and operating temperature range (-40°C ~ 150°C TJ). Thermal and electrical performance characteristics are equivalent.

Q: What fault protection features are included in both parts?

A: Both LNK362DN and LNK362DN-TL include Current Limiting, Open Loop, Over Temperature, and Short Circuit fault protection. These protection mechanisms are identical across both part numbers.

Q: Are both parts RoHS compliant?

A: Yes. Both LNK362DN and LNK362DN-TL are RoHS Compliant with MSL Rating 1 (Unlimited). No environmental or regulatory barriers exist for substitution.

Q: What is the package type for both parts?

A: Both parts use 8-SOIC (0.154" width, 3.90mm) surface mount package with 7 leads. The package designation is SO-8C. Pin configuration and PCB footprint are identical.

Q: Why is LNK362DN discontinued while LNK362DN-TL remains active?

A: Product status reflects supply chain and market availability decisions by the manufacturer. The LNK362DN-TL in Tape & Reel format continues to be actively produced and distributed, while the bulk-packaged LNK362DN has been discontinued at DiGi Electronics. The underlying technology and specifications remain unchanged.