LNK562DN Equivalent & Substitute Parts

Part Overview

The LNK562DN is an offline switch flyback converter IC manufactured by Power Integrations, part of the LinkSwitch®-LP series. This device functions as an integrated power management solution for isolated flyback topology applications, operating at 66kHz switching frequency with 1.9W output power capability. The LNK562DN is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign.

Substiute Parts

LNK562DN

Power IntegrationsIn Stock: 19601LNK562DN Datasheet

Current PartRFQ

LNK562DN-TL

Power IntegrationsIn Stock: 18172LNK562DN-TL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LNK562DN is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Voltage - Breakdown: 700V rating
• Frequency - Switching: 66kHz operation
• Power (Watts): 1.9W output capability
• Duty Cycle: 70% maximum
• Fault Protection: Current Limiting, Open Loop, Over Temperature, Short Circuit protection suite
• Operating Temperature Range: -40°C ~ 150°C (TJ)

Mechanical Equivalence Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width), 7 Leads
• Supplier Device Package: SO-8C
• Mounting Type: Surface Mount

Compliance Equivalence Criteria:

• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The LNK562DN-TL qualifies as a direct substitute based on complete alignment across all electrical, mechanical, and compliance parameters. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The LNK562DN-TL is the qualified substitute for the discontinued LNK562DN. Both parts are manufactured by Power Integrations and share identical electrical specifications, mechanical packaging, and compliance certifications. The LNK562DN-TL maintains active product status, ensuring continued availability and supply chain reliability.

The distinction between these parts is limited to packaging format: the LNK562DN-TL is supplied in Tape & Reel format, which is standard for high-volume production environments. This packaging format does not affect electrical performance or PCB-level compatibility.

Both parts satisfy RoHS compliance requirements and carry REACH Unaffected status, making them suitable for applications subject to environmental and regulatory constraints. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions during storage or handling.

Selection of the LNK562DN-TL is appropriate for new designs, production restocking, and direct replacement of discontinued LNK562DN units in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the LNK562DN-TL be used as a direct replacement for the LNK562DN?

A: Yes. The LNK562DN-TL is electrically and mechanically identical to the LNK562DN. All electrical parameters, operating characteristics, fault protection features, and package specifications are equivalent. The only difference is the packaging format (Tape & Reel versus bulk).

Q: What is the difference between LNK562DN and LNK562DN-TL?

A: The LNK562DN-TL is supplied in Tape & Reel (TR) packaging, while the LNK562DN is supplied in bulk packaging. This distinction affects only the delivery and handling format, not the component itself or its performance in circuit applications.

Q: Why is the LNK562DN discontinued?

A: The LNK562DN is discontinued at DiGi Electronics. The LNK562DN-TL remains in active production and is the recommended source for this component family.

Q: Are there any circuit modifications required when substituting LNK562DN with LNK562DN-TL?

A: No circuit modifications are required. The LNK562DN-TL is a pin-for-pin, electrically equivalent replacement. PCB layout and schematic connections remain unchanged.

Q: What is the operating temperature range for both parts?

A: Both the LNK562DN and LNK562DN-TL operate across -40°C to 150°C junction temperature (TJ), providing equivalent thermal performance across industrial and extended temperature applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the LNK562DN and LNK562DN-TL are RoHS Compliant and carry REACH Unaffected status, meeting environmental and regulatory requirements for EU and global markets.

Q: What is the MSL rating for these components?

A: Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices are sufficient.

Q: Can the LNK562DN-TL be used in high-volume production?

A: Yes. The Tape & Reel packaging format of the LNK562DN-TL is optimized for automated assembly and high-volume production environments, making it the preferred choice for manufacturing operations.