INN2004K-TL Equivalent & Substitute Parts

Part Overview

The INN2004K-TL is an offline switching converter IC manufactured by Power Integrations, part of the InnoSwitch™-CH series. This isolated flyback converter with secondary-side synchronous rectification (SR) topology operates at 100 kHz switching frequency and delivers 15 W output power. The device integrates an internal primary-side switch with comprehensive fault protection including current limiting, over-temperature, and over-voltage protection. The INN2004K-TL is classified as Active product status with full RoHS compliance and REACH unaffected designation. Substitute parts are necessary when addressing inventory constraints, lead time requirements, or when design specifications permit operation at alternative power levels within the InnoSwitch™-CH series.

Substiute Parts

INN2004K-TL

Power IntegrationsIn Stock: 3376INN2004K-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

INN2024K-TL

Power IntegrationsIn Stock: 20290INN2024K-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the INN2004K-TL family is determined by strict adherence to the following electrical and mechanical parameters:

Fixed Parameters (Non-Negotiable for Substitution):

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

Variable Parameter (Determines Substitution Eligibility):

• Power (Watts): 12 W, 15 W, or 20 W

All substitute parts maintain identical electrical characteristics, package specifications, and thermal operating range. Substitution is valid when the alternative part's power rating meets or exceeds the application requirement. The INN2004K-TL (15 W) can be substituted with INN2003K-TL (12 W) only in applications requiring ≤12 W output. The INN2004K-TL can be substituted with INN2005K-TL (20 W) or INN2024K-TL (15 W) in all applications. The INN2004K-TL can be substituted with INN2023K-TL (12 W) only in applications requiring ≤12 W output.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (INN2024K-TL): The INN2024K-TL is a direct equivalent to the INN2004K-TL, sharing identical power rating (15 W), electrical specifications, and package configuration. Both parts are Active status with full RoHS compliance and REACH unaffected designation. Selection between INN2004K-TL and INN2024K-TL is determined by packaging availability: INN2004K-TL is supplied in Tape & Reel (TR) format with 3,300 units in stock, while INN2024K-TL is also supplied in Tape & Reel (TR) format with 20,200 units in stock.

Higher Power Rating Substitution (INN2005K-TL): The INN2005K-TL operates at 20 W output power and is suitable for applications where the INN2004K-TL (15 W) is specified, provided the application design accommodates the higher power capability. All electrical parameters, topology, and thermal characteristics remain identical. The INN2005K-TL is supplied in Cut Tape (CT) & Digi-Reel® format with 74,547 units in stock. This substitution is valid for all applications requiring ≤20 W output.

Lower Power Rating Substitution (INN2003K-TL and INN2023K-TL): The INN2003K-TL and INN2023K-TL both operate at 12 W output power. These parts are suitable substitutes for the INN2004K-TL only in applications where the maximum required output power does not exceed 12 W. The INN2003K-TL is supplied in Tape & Reel (TR) format with 13,471 units in stock. The INN2023K-TL is supplied in Cut Tape (CT) & Digi-Reel® format with 15,400 units in stock. Both maintain identical electrical specifications and thermal operating range.

Compliance and Regulatory Status: All substitute parts maintain Active product status, RoHS compliance, and REACH unaffected designation. Moisture sensitivity level (MSL 3, 168 Hours) is uniform across all parts. ECCN and HTSUS classifications are identical.

Frequently Asked Questions (FAQ)

Q: Can INN2004K-TL be replaced with INN2003K-TL? A: The INN2003K-TL is a valid substitute only if the application requires maximum output power of 12 W or less. The INN2003K-TL is rated for 12 W output, while the INN2004K-TL is rated for 15 W. All other electrical parameters, topology, package, and thermal specifications are identical.

Q: What is the difference between INN2004K-TL and INN2024K-TL? A: The INN2004K-TL and INN2024K-TL are functionally equivalent. Both are rated for 15 W output power and share identical electrical specifications, topology, package configuration (16-PowerSOIC eSOP-R16B), and thermal operating range (-40°C ~ 85°C). The primary difference is inventory availability and base product number designation.

Q: Can INN2004K-TL be replaced with INN2005K-TL? A: Yes. The INN2005K-TL is rated for 20 W output power and is a valid substitute for the INN2004K-TL (15 W) in all applications. All electrical parameters, topology, package, and thermal specifications are identical. The higher power rating provides additional design margin.

Q: Are all substitute parts in the same package? A: Yes. All substitute parts (INN2003K-TL, INN2005K-TL, INN2023K-TL, INN2024K-TL) use the identical 16-PowerSOIC (0.350", 8.89mm Width), 15 Leads package with eSOP-R16B supplier device package designation. Surface mount compatibility is maintained across all parts.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging? A: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® are different packaging and delivery formats. The INN2004K-TL and INN2024K-TL are supplied in Tape & Reel format. The INN2005K-TL and INN2023K-TL are supplied in Cut Tape & Digi-Reel® format. The electrical and mechanical specifications of the components are identical; packaging format selection depends on assembly line requirements and inventory management practices.

Q: Do all substitute parts have the same thermal operating range? A: Yes. All substitute parts operate across the identical temperature range of -40°C ~ 85°C (TA). Moisture sensitivity level (MSL 3, 168 Hours) is uniform across all parts.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts (INN2003K-TL, INN2005K-TL, INN2023K-TL, INN2024K-TL) are RoHS compliant and REACH unaffected. All parts maintain Active product status.

Q: What determines whether a substitute part is acceptable for my application? A: Substitution is determined by power rating compatibility. The substitute part's power rating must equal or exceed the application requirement. For example, a 12 W application can use INN2003K-TL or INN2023K-TL (12 W), INN2004K-TL (15 W), INN2024K-TL (15 W), or INN2005K-TL (20 W). A 15 W application can use INN2004K-TL (15 W), INN2024K-TL (15 W), or INN2005K-TL (20 W), but not INN2003K-TL or INN2023K-TL (12 W).