INN2024K-TL Equivalent & Substitute Parts

Part Overview

The INN2024K-TL is an offline switching converter IC manufactured by Power Integrations, part of the InnoSwitch™-CH series. This device implements a flyback topology with secondary-side synchronous rectification (SR) operating at 100kHz, delivering 15W of isolated power. The IC integrates an internal switch with 650V breakdown voltage rating and comprehensive fault protection including current limiting, over-temperature, and over-voltage monitoring.

The INN2024K-TL is classified as an Active product with full RoHS compliance and REACH unaffected status. Substitute parts are necessary when addressing supply chain constraints, inventory availability, or when design specifications permit operation at alternative power levels within the InnoSwitch™-CH family.

Substiute Parts

INN2024K-TL

Power IntegrationsIn Stock: 20290INN2024K-TL Datasheet

Current PartRFQ

INN2003K-TL

Power IntegrationsIn Stock: 13558INN2003K-TL Datasheet

Parametric EquivalentRFQ

INN2005K-TL

Power IntegrationsIn Stock: 74631INN2005K-TL Datasheet

Parametric EquivalentRFQ

INN2023K-TL

Power IntegrationsIn Stock: 15438INN2023K-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the InnoSwitch™-CH family is determined by electrical and mechanical parameter alignment. All substitute parts share identical characteristics in the following critical areas:

Invariant Parameters (Must Match for Substitution):

• Manufacturer: Power Integrations
• Series: InnoSwitch™-CH
• Topology: Flyback, Secondary Side SR
• Voltage - Breakdown: 650V
• Frequency - Switching: 100kHz
• Duty Cycle: 60%
• Output Isolation: Isolated
• Internal Switch(s): Yes
• Fault Protection: Current Limiting, Over Temperature, Over Voltage
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 16-PowerSOIC (0.350", 8.89mm Width), 15 Leads
• Supplier Device Package: eSOP-R16B
• Mounting Type: Surface Mount
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 3 (168 Hours)
• REACH Status: REACH Unaffected

Variable Parameter (Differentiates Substitutes):

• Power (Watts): 12W, 15W, or 20W

The INN2024K-TL operates at 15W. Substitute parts INN2003K-TL and INN2023K-TL operate at 12W, while INN2005K-TL operates at 20W. Selection depends on application power requirements and design headroom.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status with full RoHS compliance and REACH unaffected classification, ensuring regulatory and environmental compliance across the entire substitution set.

Selection Criteria Based on Power Requirements:

For applications requiring exactly 15W output power, the INN2024K-TL is the primary selection. This part is available in Tape & Reel packaging with 20,200 units in stock.

For applications with maximum power requirements of 12W, both INN2003K-TL and INN2023K-TL are electrically equivalent substitutes. INN2003K-TL is available in Tape & Reel packaging (13,471 units in stock), while INN2023K-TL is available in Cut Tape and Digi-Reel® packaging (15,400 units in stock).

For applications requiring up to 20W output power, the INN2005K-TL provides the highest power rating within the family. This part is available in Cut Tape and Digi-Reel® packaging with the largest inventory of 74,547 units in stock.

All parts share identical electrical characteristics, thermal operating range, fault protection mechanisms, and physical package dimensions, enabling direct substitution at the PCB level when power specifications align.

Frequently Asked Questions (FAQ)

Q: Can INN2003K-TL or INN2023K-TL be used as direct replacements for INN2024K-TL?

A: INN2003K-TL and INN2023K-TL are electrically compatible substitutes only for applications where the maximum required output power does not exceed 12W. Both parts share identical electrical topology, switching frequency, voltage ratings, and fault protection with INN2024K-TL. However, they are rated for lower power output. If the application requires the full 15W capability of INN2024K-TL, these lower-rated parts are not suitable.

Q: Can INN2005K-TL replace INN2024K-TL?

A: Yes. INN2005K-TL is a direct substitute for INN2024K-TL. It operates at 20W, providing additional power headroom while maintaining all other electrical and mechanical specifications. The higher power rating does not create compatibility issues in applications designed for 15W operation.

Q: Are there packaging differences between substitute parts?

A: Yes. INN2024K-TL and INN2003K-TL are supplied in Tape & Reel (TR) packaging. INN2005K-TL and INN2023K-TL are supplied in Cut Tape (CT) and Digi-Reel® packaging. All parts use the identical eSOP-R16B package footprint and are surface-mount compatible with the same PCB layout.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All parts in this substitution set are RoHS Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours). All parts maintain Active product status with Power Integrations.

Q: What is the primary differentiator between these substitute parts?

A: The only electrical differentiator is the maximum output power rating: 12W (INN2003K-TL, INN2023K-TL), 15W (INN2024K-TL), or 20W (INN2005K-TL). All other parameters including topology, switching frequency, voltage breakdown rating, operating temperature range, and fault protection are identical.

Q: Can lower-power parts be used in higher-power applications?

A: No. Using a lower-rated part (12W) in an application requiring 15W or 20W output will result in insufficient power delivery and potential device thermal stress or shutdown due to over-temperature protection activation.

Q: Are there thermal or reliability differences between these parts?

A: All parts share identical operating temperature range (-40°C to 85°C) and identical fault protection mechanisms. Thermal performance differences are determined by application-specific transformer design and thermal management, not by the IC itself.