LNK4002S-TL Equivalent & Substitute Parts

Part Overview

The LNK4002S-TL is an offline flyback converter IC manufactured by Power Integrations, part of the LinkSwitch™-4 series. This device operates at 65kHz switching frequency with 6.5W power capability in a SOT-23-6 surface mount package. The LNK4002S-TL is classified as Active product status and provides isolated output topology with integrated fault protection including over-temperature, over-voltage, and short-circuit detection.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling direct replacement in applications where component availability or inventory requirements necessitate alternative sourcing.

Substiute Parts

LNK4002S-TL

Power IntegrationsIn Stock: 9835LNK4002S-TL Datasheet

Current PartRFQ

LNK4022S-TL

Power IntegrationsIn Stock: 30873LNK4022S-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LNK4002S-TL are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Identical topology classification (Flyback)
• Matching switching frequency (65kHz)
• Equivalent power rating (6.5 W)
• Identical voltage supply range (5V ~ 16.5V)
• Matching output isolation configuration (Isolated)
• Identical fault protection features (Over Temperature, Over Voltage, Short Circuit)
• Equivalent operating temperature range (-25°C ~ 125°C)

Mechanical Equivalence Criteria:

• Identical package type (SOT-23-6)
• Matching mounting technology (Surface Mount)
• Same packaging format (Tape & Reel)

Compliance Equivalence Criteria:

• Active product status
• RoHS Compliant certification
• Moisture Sensitivity Level 1 (Unlimited)

Substitution is valid only when all parameters listed above are maintained. The LNK4022S-TL meets all equivalence criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LNK4022S-TL is a direct parametric equivalent to the LNK4002S-TL. Both devices maintain identical electrical specifications, mechanical packaging, and compliance certifications. Selection between these parts is determined by availability and inventory requirements rather than technical performance differences.

Both parts are classified as Active products with current manufacturing support. Both maintain RoHS Compliance and REACH Unaffected status, ensuring regulatory compliance in applications subject to environmental restrictions. The Moisture Sensitivity Level 1 (Unlimited) classification indicates both parts are suitable for standard storage and handling conditions without specialized moisture control requirements.

Component selection should be based on supply chain availability, lead time requirements, and inventory levels. The LNK4022S-TL currently maintains higher inventory availability (30,810 Pcs) compared to the LNK4002S-TL (9,824 Pcs), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the LNK4022S-TL be used as a direct replacement for the LNK4002S-TL?

A: Yes. The LNK4022S-TL is a parametric equivalent with identical electrical specifications, power rating, switching frequency, voltage supply range, fault protection features, operating temperature range, and package configuration. Direct substitution is supported without circuit modification.

Q: Are there any differences in the SOT-23-6 package between these parts?

A: No. Both parts use identical SOT-23-6 surface mount packaging with the same pin configuration, mechanical dimensions, and Tape & Reel format. PCB layout and component placement remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LNK4002S-TL and LNK4022S-TL are RoHS Compliant, REACH Unaffected, and classified with Moisture Sensitivity Level 1 (Unlimited). Regulatory compliance is maintained across both parts.

Q: What is the difference between the LNK4002 and LNK4022 base product numbers?

A: The base product numbers (LNK4002 and LNK4022) represent different internal design variants within the LinkSwitch™-4 series. However, the parametric specifications provided in this reference indicate electrical and mechanical equivalence for the -TL suffix variants. Consult detailed datasheets for internal architecture differences if required for specific application analysis.

Q: Is there a performance difference in the 65kHz switching frequency between these parts?

A: No. Both parts operate at identical 65kHz switching frequency with equivalent power delivery capability of 6.5W. Switching characteristics and frequency stability are equivalent.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes. Both parts are Active products with equivalent specifications and compliance certifications. Interchangeability is supported for production applications. Inventory availability may influence procurement strategy, as the LNK4022S-TL currently maintains higher stock levels.