TNY263G Equivalent & Substitute Parts Reference

Part Overview

The TNY263G is an offline switch flyback converter IC manufactured by Power Integrations, part of the TinySwitch®-II series. This device integrates a 700V breakdown voltage power switch with internal protection circuits for isolated flyback topology applications at 132kHz switching frequency with 7.5W output power capability.

The TNY263G carries an Obsolete product status. Locating equivalent substitute parts is necessary for ongoing production support, design continuity, and component availability assurance. The TNY263GN-TL represents the direct manufacturer equivalent with updated compliance and packaging specifications.

Substiute Parts

TNY263G

Power IntegrationsIn Stock: 2319TNY263G Datasheet

Current PartRFQ

TNY263GN-TL

Power IntegrationsIn Stock: 8382TNY263GN-TL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNY263G is determined by strict equivalence across the following parameters:

Primary Substitution Criteria:

• Topology: Flyback (mandatory match)
• Voltage - Breakdown: 700V (mandatory match)
• Frequency - Switching: 132kHz (mandatory match)
• Power (Watts): 7.5W (mandatory match)
• Duty Cycle: 65% (mandatory match)
• Fault Protection: Current Limiting, Open Loop, Over Temperature, Short Circuit (mandatory match)
• Package / Case: 8-SMD (7 Leads), Gull Wing (mandatory match)
• Operating Temperature: -40°C ~ 150°C (TJ) (mandatory match)

Secondary Considerations:

• Packaging format (bulk vs. Tape & Reel) affects supply chain logistics but does not affect electrical performance
• Product status (Obsolete vs. Not For New Designs) indicates lifecycle phase but does not affect functional compatibility
• RoHS and REACH compliance status reflects regulatory requirements for the application region

The TNY263GN-TL qualifies as a direct substitute based on identical electrical specifications and package configuration. This part maintains all critical parameters while offering improved compliance status and higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

For TNY263G Replacement:

The TNY263GN-TL is the direct functional equivalent of the TNY263G. Both parts share identical electrical specifications, switching characteristics, and package configuration. Selection between these parts should be based on the following factors:

Product Status Consideration: The TNY263G is classified as Obsolete, indicating end-of-life status with no further manufacturer support. The TNY263GN-TL carries Not For New Designs status, indicating limited availability but continued support for existing applications. For production continuity, TNY263GN-TL is the appropriate choice.

Compliance Requirements: The TNY263GN-TL is RoHS Compliant, meeting current regulatory requirements for electronic components in most markets. The TNY263G is RoHS non-compliant and may not satisfy procurement requirements for new applications or regions with RoHS mandates.

Packaging and Logistics: The TNY263GN-TL is supplied in Tape & Reel format with higher inventory availability (8300 pcs vs. 2284 pcs). This format is standard for automated assembly operations and reduces component handling risk.

Moisture Sensitivity: The TNY263GN-TL has MSL 4 (72-hour floor life), requiring controlled storage conditions. The TNY263G has MSL 1 (unlimited floor life). Storage and handling procedures must account for this difference.

Direct Substitution Path: TNY263G → TNY263GN-TL (pin-for-pin compatible, no circuit modifications required)

Frequently Asked Questions (FAQ)

Q: Can TNY263GN-TL be used as a direct replacement for TNY263G without circuit modifications?

A: Yes. The TNY263GN-TL is electrically and mechanically identical to the TNY263G. Both parts have the same 8-SMD (7 Leads) Gull Wing package, identical pin configuration, and matching electrical specifications. No circuit design changes are required for substitution.

Q: What is the difference between TNY263G and TNY263GN-TL?

A: The primary differences are product lifecycle status, compliance certifications, and packaging format. The TNY263G is Obsolete and RoHS non-compliant, supplied in bulk packaging. The TNY263GN-TL is Not For New Designs, RoHS Compliant, and supplied in Tape & Reel format. All electrical and thermal specifications are identical.

Q: Why does TNY263GN-TL have MSL 4 while TNY263G has MSL 1?

A: Moisture Sensitivity Level (MSL) reflects the component's susceptibility to moisture absorption during storage. MSL 1 indicates unlimited floor life without desiccant packaging. MSL 4 requires controlled storage (maximum 72 hours at 30°C/85% RH before reflow soldering). This difference reflects manufacturing process changes between the Obsolete and current production versions. Proper storage in desiccant packaging is required for TNY263GN-TL.

Q: Is the TNY263GN-TL suitable for new product designs?

A: The TNY263GN-TL carries Not For New Designs status, indicating the manufacturer does not recommend it for new applications. However, it remains functionally suitable for replacement in existing TNY263G applications. For new designs, consult Power Integrations documentation for current-generation TinySwitch alternatives.

Q: What are the key electrical parameters that must match for substitution?

A: The critical parameters for TNY263G substitution are: 700V breakdown voltage, 132kHz switching frequency, 7.5W power rating, 65% duty cycle, flyback topology, and the complete fault protection feature set (current limiting, open loop, over temperature, short circuit protection). The 8-SMD (7 Leads) Gull Wing package must also match for PCB compatibility.

Q: Can other TinySwitch-II parts substitute for TNY263G?

A: No. The TNY263GN-TL is the only direct substitute listed for TNY263G. Other TinySwitch-II variants (TNY264, TNY265, TNY266, TNY268, TNY274) have different electrical specifications and are not interchangeable without circuit redesign.

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

A: Both TNY263G and TNY263GN-TL operate across -40°C to 150°C junction temperature (TJ). This range applies to the semiconductor junction and must be considered in thermal design calculations for the application circuit.

Q: Are there any supply chain advantages to using TNY263GN-TL?

A: Yes. The TNY263GN-TL has significantly higher inventory availability (8300 pcs vs. 2284 pcs) and is supplied in standard Tape & Reel packaging, which is preferred for automated assembly. The TNY263G, being Obsolete, has limited remaining stock and may become unavailable.